+- TopLevel
   +- Statements
   |  +- Statement
   |  |  +- Declaration
   |  |     +- StructDeclaration
   |  |        +- AccessLevelModifier
   |  |        |  +- T-public
   |  |        +- T-struct
   |  |        +- StructName
   |  |        |  +- Identifier
   |  |        |     +- T-Identifier
   |  |        +- GenericParameterClause
   |  |        |  +- T-lt
   |  |        |  +- GenericParameterList
   |  |        |  |  +- GenericParameter
   |  |        |  |  |  +- TypeName
   |  |        |  |  |  |  +- Identifier
   |  |        |  |  |  |     +- T-Identifier
   |  |        |  |  |  +- T-colon
   |  |        |  |  |  +- TypeIdentifier
   |  |        |  |  |     +- TypeName
   |  |        |  |  |        +- Identifier
   |  |        |  |  |           +- T-Identifier
   |  |        |  |  +- T-comma
   |  |        |  |  +- GenericParameter
   |  |        |  |     +- TypeName
   |  |        |  |        +- Identifier
   |  |        |  |           +- T-Identifier
   |  |        |  +- T-gt
   |  |        +- StructBody
   |  |           +- T-lbrace
   |  |           +- StructMembers
   |  |           |  +- StructMember
   |  |           |  |  +- Declaration
   |  |           |  |     +- TypealiasDeclaration
   |  |           |  |        +- TypealiasHead
   |  |           |  |        |  +- AccessLevelModifier
   |  |           |  |        |  |  +- T-public
   |  |           |  |        |  +- T-typealias
   |  |           |  |        |  +- TypealiasName
   |  |           |  |        |     +- Identifier
   |  |           |  |        |        +- T-Identifier
   |  |           |  |        +- TypealiasAssignment
   |  |           |  |           +- T-eq
   |  |           |  |           +- SType
   |  |           |  |              +- TupleType
   |  |           |  |                 +- T-lparen
   |  |           |  |                 +- TupleTypeElementList
   |  |           |  |                 |  +- TupleTypeElement
   |  |           |  |                 |  |  +- SType
   |  |           |  |                 |  |     +- TypeIdentifier
   |  |           |  |                 |  |        +- TypeName
   |  |           |  |                 |  |           +- Identifier
   |  |           |  |                 |  |              +- T-Identifier
   |  |           |  |                 |  +- T-comma
   |  |           |  |                 |  +- TupleTypeElement
   |  |           |  |                 |     +- SType
   |  |           |  |                 |        +- TypeIdentifier
   |  |           |  |                 |           +- TypeName
   |  |           |  |                 |              +- Identifier
   |  |           |  |                 |                 +- T-Identifier
   |  |           |  |                 +- T-rparen
   |  |           |  +- StructMember
   |  |           |  |  +- Declaration
   |  |           |  |     +- TypealiasDeclaration
   |  |           |  |        +- TypealiasHead
   |  |           |  |        |  +- AccessLevelModifier
   |  |           |  |        |  |  +- T-internal
   |  |           |  |        |  +- T-typealias
   |  |           |  |        |  +- TypealiasName
   |  |           |  |        |     +- Identifier
   |  |           |  |        |        +- T-Identifier
   |  |           |  |        +- TypealiasAssignment
   |  |           |  |           +- T-eq
   |  |           |  |           +- SType
   |  |           |  |              +- TypeIdentifier
   |  |           |  |                 +- TypeName
   |  |           |  |                 |  +- Identifier
   |  |           |  |                 |     +- T-Identifier
   |  |           |  |                 +- GenericArgumentClause
   |  |           |  |                    +- T-lt
   |  |           |  |                    +- GenericArgumentList
   |  |           |  |                    |  +- GenericArgument
   |  |           |  |                    |  |  +- SType
   |  |           |  |                    |  |     +- TypeIdentifier
   |  |           |  |                    |  |        +- TypeName
   |  |           |  |                    |  |           +- Identifier
   |  |           |  |                    |  |              +- T-Identifier
   |  |           |  |                    |  +- T-comma
   |  |           |  |                    |  +- GenericArgument
   |  |           |  |                    |     +- SType
   |  |           |  |                    |        +- TypeIdentifier
   |  |           |  |                    |           +- TypeName
   |  |           |  |                    |              +- Identifier
   |  |           |  |                    |                 +- T-Identifier
   |  |           |  |                    +- T-gt
   |  |           |  +- StructMember
   |  |           |  |  +- Declaration
   |  |           |  |     +- VariableDeclaration
   |  |           |  |        +- VariableDeclarationHead
   |  |           |  |        |  +- DeclarationModifiers
   |  |           |  |        |  |  +- DeclarationModifier
   |  |           |  |        |  |     +- AccessLevelModifier
   |  |           |  |        |  |        +- T-internal
   |  |           |  |        |  +- T-var
   |  |           |  |        +- PatternInitializerList
   |  |           |  |           +- PatternInitializer
   |  |           |  |              +- Pattern
   |  |           |  |                 +- IdentifierPattern
   |  |           |  |                 |  +- Identifier
   |  |           |  |                 |     +- T-Identifier
   |  |           |  |                 +- TypeAnnotation
   |  |           |  |                    +- T-colon
   |  |           |  |                    +- SType
   |  |           |  |                       +- TypeIdentifier
   |  |           |  |                          +- TypeName
   |  |           |  |                             +- Identifier
   |  |           |  |                                +- T-Identifier
   |  |           |  +- StructMember
   |  |           |  |  +- Declaration
   |  |           |  |     +- InitializerDeclaration
   |  |           |  |        +- InitializerHead
   |  |           |  |        |  +- DeclarationModifiers
   |  |           |  |        |  |  +- DeclarationModifier
   |  |           |  |        |  |     +- AccessLevelModifier
   |  |           |  |        |  |        +- T-internal
   |  |           |  |        |  +- T-init
   |  |           |  |        +- ParameterClause
   |  |           |  |        |  +- T-lparen
   |  |           |  |        |  +- ParameterList
   |  |           |  |        |  |  +- Parameter
   |  |           |  |        |  |     +- ExternalParameterName
   |  |           |  |        |  |     |  +- Keyword
   |  |           |  |        |  |     |     +- T-underscore
   |  |           |  |        |  |     +- LocalParameterName
   |  |           |  |        |  |     |  +- Identifier
   |  |           |  |        |  |     |     +- T-Identifier
   |  |           |  |        |  |     +- TypeAnnotation
   |  |           |  |        |  |        +- T-colon
   |  |           |  |        |  |        +- SType
   |  |           |  |        |  |           +- TypeIdentifier
   |  |           |  |        |  |              +- TypeName
   |  |           |  |        |  |                 +- Identifier
   |  |           |  |        |  |                    +- T-Identifier
   |  |           |  |        |  +- T-rparen
   |  |           |  |        +- InitializerBody
   |  |           |  |           +- CodeBlock
   |  |           |  |              +- T-lbrace
   |  |           |  |              +- Statements
   |  |           |  |              |  +- Statement
   |  |           |  |              |  |  +- Expression
   |  |           |  |              |  |     +- PrefixExpression
   |  |           |  |              |  |        +- PostfixExpression
   |  |           |  |              |  |           +- PostfixExpression
   |  |           |  |              |  |           |  +- PostfixExpression
   |  |           |  |              |  |           |  |  +- PrimaryExpression
   |  |           |  |              |  |           |  |     +- Keyword
   |  |           |  |              |  |           |  |        +- T-self
   |  |           |  |              |  |           |  +- T-dot
   |  |           |  |              |  |           |  +- Identifier
   |  |           |  |              |  |           |     +- T-Identifier
   |  |           |  |              |  |           +- PostfixOperator
   |  |           |  |              |  |              +- Operator
   |  |           |  |              |  |                 +- OperatorHead
   |  |           |  |              |  |                    +- T-eq
   |  |           |  |              |  +- Statement
   |  |           |  |              |     +- Expression
   |  |           |  |              |        +- PrefixExpression
   |  |           |  |              |           +- PostfixExpression
   |  |           |  |              |              +- PrimaryExpression
   |  |           |  |              |                 +- Identifier
   |  |           |  |              |                    +- T-Identifier
   |  |           |  |              +- T-rbrace
   |  |           |  +- StructMember
   |  |           |  |  +- Declaration
   |  |           |  |     +- InitializerDeclaration
   |  |           |  |        +- InitializerHead
   |  |           |  |        |  +- DeclarationModifiers
   |  |           |  |        |  |  +- DeclarationModifier
   |  |           |  |        |  |     +- AccessLevelModifier
   |  |           |  |        |  |        +- T-public
   |  |           |  |        |  +- T-init
   |  |           |  |        +- ParameterClause
   |  |           |  |        |  +- T-lparen
   |  |           |  |        |  +- ParameterList
   |  |           |  |        |  |  +- Parameter
   |  |           |  |        |  |     +- LocalParameterName
   |  |           |  |        |  |     |  +- Identifier
   |  |           |  |        |  |     |     +- T-Identifier
   |  |           |  |        |  |     +- TypeAnnotation
   |  |           |  |        |  |     |  +- T-colon
   |  |           |  |        |  |     |  +- SType
   |  |           |  |        |  |     |     +- TypeIdentifier
   |  |           |  |        |  |     |        +- TypeName
   |  |           |  |        |  |     |           +- Identifier
   |  |           |  |        |  |     |              +- T-Identifier
   |  |           |  |        |  |     +- DefaultArgumentClause
   |  |           |  |        |  |        +- T-eq
   |  |           |  |        |  |        +- Expression
   |  |           |  |        |  |           +- PrefixExpression
   |  |           |  |        |  |              +- PostfixExpression
   |  |           |  |        |  |                 +- PostfixExpression
   |  |           |  |        |  |                 |  +- PrimaryExpression
   |  |           |  |        |  |                 |     +- Identifier
   |  |           |  |        |  |                 |        +- T-Identifier
   |  |           |  |        |  |                 +- T-dot
   |  |           |  |        |  |                 +- Identifier
   |  |           |  |        |  |                    +- T-Identifier
   |  |           |  |        |  +- T-rparen
   |  |           |  |        +- InitializerBody
   |  |           |  |           +- CodeBlock
   |  |           |  |              +- T-lbrace
   |  |           |  |              +- Statements
   |  |           |  |              |  +- Statement
   |  |           |  |              |  |  +- Expression
   |  |           |  |              |  |     +- PrefixExpression
   |  |           |  |              |  |        +- PostfixExpression
   |  |           |  |              |  |           +- PostfixExpression
   |  |           |  |              |  |           |  +- PostfixExpression
   |  |           |  |              |  |           |  |  +- PrimaryExpression
   |  |           |  |              |  |           |  |     +- Keyword
   |  |           |  |              |  |           |  |        +- T-self
   |  |           |  |              |  |           |  +- T-dot
   |  |           |  |              |  |           |  +- Identifier
   |  |           |  |              |  |           |     +- T-Identifier
   |  |           |  |              |  |           +- PostfixOperator
   |  |           |  |              |  |              +- Operator
   |  |           |  |              |  |                 +- OperatorHead
   |  |           |  |              |  |                    +- T-eq
   |  |           |  |              |  +- Statement
   |  |           |  |              |     +- Expression
   |  |           |  |              |        +- PrefixExpression
   |  |           |  |              |           +- PostfixExpression
   |  |           |  |              |              +- PostfixExpression
   |  |           |  |              |              |  +- PrimaryExpression
   |  |           |  |              |              |     +- Identifier
   |  |           |  |              |              |        +- T-Identifier
   |  |           |  |              |              +- FunctionCallArgumentClause
   |  |           |  |              |                 +- T-lparen
   |  |           |  |              |                 +- FunctionCallArgumentList
   |  |           |  |              |                 |  +- FunctionCallArgument
   |  |           |  |              |                 |     +- FunctionCallIdentifier
   |  |           |  |              |                 |     |  +- Identifier
   |  |           |  |              |                 |     |     +- T-Identifier
   |  |           |  |              |                 |     +- T-colon
   |  |           |  |              |                 |     +- Expression
   |  |           |  |              |                 |        +- PrefixExpression
   |  |           |  |              |                 |           +- PostfixExpression
   |  |           |  |              |                 |              +- PrimaryExpression
   |  |           |  |              |                 |                 +- Identifier
   |  |           |  |              |                 |                    +- T-Identifier
   |  |           |  |              |                 +- T-rparen
   |  |           |  |              +- T-rbrace
   |  |           |  +- StructMember
   |  |           |  |  +- Declaration
   |  |           |  |     +- VariableDeclaration
   |  |           |  |        +- VariableDeclarationHead
   |  |           |  |        |  +- DeclarationModifiers
   |  |           |  |        |  |  +- DeclarationModifier
   |  |           |  |        |  |     +- AccessLevelModifier
   |  |           |  |        |  |        +- T-public
   |  |           |  |        |  +- T-var
   |  |           |  |        +- VariableName
   |  |           |  |        |  +- Identifier
   |  |           |  |        |     +- T-Identifier
   |  |           |  |        +- TypeAnnotation
   |  |           |  |        |  +- T-colon
   |  |           |  |        |  +- SType
   |  |           |  |        |     +- TypeIdentifier
   |  |           |  |        |        +- TypeName
   |  |           |  |        |           +- Identifier
   |  |           |  |        |              +- T-Identifier
   |  |           |  |        +- CodeBlock
   |  |           |  |           +- T-lbrace
   |  |           |  |           +- Statements
   |  |           |  |           |  +- Statement
   |  |           |  |           |     +- ControlTransferStatement
   |  |           |  |           |        +- ReturnStatement
   |  |           |  |           |           +- T-return
   |  |           |  |           |           +- Expression
   |  |           |  |           |              +- PrefixExpression
   |  |           |  |           |                 +- PostfixExpression
   |  |           |  |           |                    +- PostfixExpression
   |  |           |  |           |                    |  +- PrimaryExpression
   |  |           |  |           |                    |     +- Identifier
   |  |           |  |           |                    |        +- T-Identifier
   |  |           |  |           |                    +- T-dot
   |  |           |  |           |                    +- Identifier
   |  |           |  |           |                       +- T-Identifier
   |  |           |  |           +- T-rbrace
   |  |           |  +- StructMember
   |  |           |     +- Declaration
   |  |           |        +- VariableDeclaration
   |  |           |           +- VariableDeclarationHead
   |  |           |           |  +- DeclarationModifiers
   |  |           |           |  |  +- DeclarationModifier
   |  |           |           |  |     +- AccessLevelModifier
   |  |           |           |  |        +- T-public
   |  |           |           |  +- T-var
   |  |           |           +- VariableName
   |  |           |           |  +- Identifier
   |  |           |           |     +- T-Identifier
   |  |           |           +- TypeAnnotation
   |  |           |           |  +- T-colon
   |  |           |           |  +- SType
   |  |           |           |     +- TypeIdentifier
   |  |           |           |        +- TypeName
   |  |           |           |           +- Identifier
   |  |           |           |              +- T-Identifier
   |  |           |           +- CodeBlock
   |  |           |              +- T-lbrace
   |  |           |              +- Statements
   |  |           |              |  +- Statement
   |  |           |              |     +- ControlTransferStatement
   |  |           |              |        +- ReturnStatement
   |  |           |              |           +- T-return
   |  |           |              |           +- Expression
   |  |           |              |              +- PrefixExpression
   |  |           |              |                 +- PostfixExpression
   |  |           |              |                    +- PostfixExpression
   |  |           |              |                    |  +- PrimaryExpression
   |  |           |              |                    |     +- Identifier
   |  |           |              |                    |        +- T-Identifier
   |  |           |              |                    +- T-dot
   |  |           |              |                    +- Identifier
   |  |           |              |                       +- T-Identifier
   |  |           |              +- T-rbrace
   |  |           +- T-rbrace
   |  +- Statement
   |  |  +- Declaration
   |  |     +- ExtensionDeclaration
   |  |        +- AccessLevelModifier
   |  |        |  +- T-public
   |  |        +- T-extension
   |  |        +- TypeIdentifier
   |  |        |  +- TypeName
   |  |        |     +- Identifier
   |  |        |        +- T-Identifier
   |  |        +- ExtensionBody
   |  |           +- T-lbrace
   |  |           +- ExtensionMembers
   |  |           |  +- ExtensionMember
   |  |           |  |  +- Declaration
   |  |           |  |     +- VariableDeclaration
   |  |           |  |        +- VariableDeclarationHead
   |  |           |  |        |  +- DeclarationModifiers
   |  |           |  |        |  |  +- DeclarationModifier
   |  |           |  |        |  |     +- AccessLevelModifier
   |  |           |  |        |  |        +- T-internal
   |  |           |  |        |  +- T-var
   |  |           |  |        +- VariableName
   |  |           |  |        |  +- Identifier
   |  |           |  |        |     +- T-Identifier
   |  |           |  |        +- TypeAnnotation
   |  |           |  |        |  +- T-colon
   |  |           |  |        |  +- SType
   |  |           |  |        |     +- TypeIdentifier
   |  |           |  |        |        +- TypeName
   |  |           |  |        |           +- Identifier
   |  |           |  |        |              +- T-Identifier
   |  |           |  |        +- GetterSetterBlock
   |  |           |  |           +- T-lbrace
   |  |           |  |           +- GetterClause
   |  |           |  |           |  +- DeclarationModifiers
   |  |           |  |           |  |  +- DeclarationModifier
   |  |           |  |           |  |     +- MutationModifier
   |  |           |  |           |  |        +- T-mutating
   |  |           |  |           |  +- T-get
   |  |           |  |           |  +- CodeBlock
   |  |           |  |           |     +- T-lbrace
   |  |           |  |           |     +- Statements
   |  |           |  |           |     |  +- Statement
   |  |           |  |           |     |     +- ControlTransferStatement
   |  |           |  |           |     |        +- ReturnStatement
   |  |           |  |           |     |           +- T-return
   |  |           |  |           |     |           +- Expression
   |  |           |  |           |     |              +- PrefixExpression
   |  |           |  |           |     |                 +- PostfixExpression
   |  |           |  |           |     |                    +- PostfixExpression
   |  |           |  |           |     |                    |  +- PrimaryExpression
   |  |           |  |           |     |                    |     +- Identifier
   |  |           |  |           |     |                    |        +- T-Identifier
   |  |           |  |           |     |                    +- FunctionCallArgumentClause
   |  |           |  |           |     |                       +- T-lparen
   |  |           |  |           |     |                       +- FunctionCallArgumentList
   |  |           |  |           |     |                       |  +- FunctionCallArgument
   |  |           |  |           |     |                       |     +- Expression
   |  |           |  |           |     |                       |        +- PrefixExpression
   |  |           |  |           |     |                       |           +- PrefixOperator
   |  |           |  |           |     |                       |           |  +- Operator
   |  |           |  |           |     |                       |           |     +- OperatorHead
   |  |           |  |           |     |                       |           |        +- T-amp
   |  |           |  |           |     |                       |           +- PostfixExpression
   |  |           |  |           |     |                       |              +- PrimaryExpression
   |  |           |  |           |     |                       |                 +- Identifier
   |  |           |  |           |     |                       |                    +- T-Identifier
   |  |           |  |           |     |                       +- T-rparen
   |  |           |  |           |     +- T-rbrace
   |  |           |  |           +- T-rbrace
   |  |           |  +- ExtensionMember
   |  |           |     +- Declaration
   |  |           |        +- FunctionDeclaration
   |  |           |           +- FunctionHead
   |  |           |           |  +- DeclarationModifiers
   |  |           |           |  |  +- DeclarationModifier
   |  |           |           |  |  |  +- AccessLevelModifier
   |  |           |           |  |  |     +- T-internal
   |  |           |           |  |  +- DeclarationModifier
   |  |           |           |  |     +- MutationModifier
   |  |           |           |  |        +- T-mutating
   |  |           |           |  +- T-func
   |  |           |           +- FunctionName
   |  |           |           |  +- Identifier
   |  |           |           |     +- T-Identifier
   |  |           |           +- FunctionSignature
   |  |           |           |  +- ParameterClause
   |  |           |           |     +- T-lparen
   |  |           |           |     +- T-rparen
   |  |           |           +- FunctionBody
   |  |           |              +- CodeBlock
   |  |           |                 +- T-lbrace
   |  |           |                 +- Statements
   |  |           |                 |  +- Statement
   |  |           |                 |  |  +- BranchStatement
   |  |           |                 |  |     +- GuardStatement
   |  |           |                 |  |        +- T-guard
   |  |           |                 |  |        +- ConditionList
   |  |           |                 |  |        |  +- Condition
   |  |           |                 |  |        |     +- Expression
   |  |           |                 |  |        |        +- PrefixExpression
   |  |           |                 |  |        |           +- PrefixOperator
   |  |           |                 |  |        |           |  +- Operator
   |  |           |                 |  |        |           |     +- OperatorHead
   |  |           |                 |  |        |           |        +- T-bang
   |  |           |                 |  |        |           +- PostfixExpression
   |  |           |                 |  |        |              +- PrimaryExpression
   |  |           |                 |  |        |                 +- Identifier
   |  |           |                 |  |        |                    +- T-Identifier
   |  |           |                 |  |        +- T-else
   |  |           |                 |  |        +- CodeBlock
   |  |           |                 |  |           +- T-lbrace
   |  |           |                 |  |           +- Statements
   |  |           |                 |  |           |  +- Statement
   |  |           |                 |  |           |     +- ControlTransferStatement
   |  |           |                 |  |           |        +- ReturnStatement
   |  |           |                 |  |           |           +- T-return
   |  |           |                 |  |           +- T-rbrace
   |  |           |                 |  +- Statement
   |  |           |                 |  |  +- Expression
   |  |           |                 |  |     +- PrefixExpression
   |  |           |                 |  |        +- PostfixExpression
   |  |           |                 |  |           +- PostfixExpression
   |  |           |                 |  |           |  +- PrimaryExpression
   |  |           |                 |  |           |     +- Identifier
   |  |           |                 |  |           |        +- T-Identifier
   |  |           |                 |  |           +- PostfixOperator
   |  |           |                 |  |              +- Operator
   |  |           |                 |  |                 +- OperatorHead
   |  |           |                 |  |                    +- T-eq
   |  |           |                 |  +- Statement
   |  |           |                 |     +- Expression
   |  |           |                 |        +- PrefixExpression
   |  |           |                 |           +- PostfixExpression
   |  |           |                 |              +- PostfixExpression
   |  |           |                 |              |  +- PostfixExpression
   |  |           |                 |              |  |  +- PrimaryExpression
   |  |           |                 |              |  |     +- Identifier
   |  |           |                 |              |  |        +- T-Identifier
   |  |           |                 |              |  +- T-dot
   |  |           |                 |              |  +- Identifier
   |  |           |                 |              |     +- T-Identifier
   |  |           |                 |              +- FunctionCallArgumentClause
   |  |           |                 |                 +- T-lparen
   |  |           |                 |                 +- T-rparen
   |  |           |                 +- T-rbrace
   |  |           +- T-rbrace
   |  +- Statement
   |  |  +- Declaration
   |  |     +- ExtensionDeclaration
   |  |        +- T-extension
   |  |        +- TypeIdentifier
   |  |        |  +- TypeName
   |  |        |     +- Identifier
   |  |        |        +- T-Identifier
   |  |        +- TypeInheritanceClause
   |  |        |  +- T-colon
   |  |        |  +- TypeInheritanceList
   |  |        |     +- TypeIdentifier
   |  |        |        +- TypeName
   |  |        |           +- Identifier
   |  |        |              +- T-Identifier
   |  |        +- ExtensionBody
   |  |           +- T-lbrace
   |  |           +- ExtensionMembers
   |  |           |  +- ExtensionMember
   |  |           |  |  +- Declaration
   |  |           |  |     +- TypealiasDeclaration
   |  |           |  |        +- TypealiasHead
   |  |           |  |        |  +- AccessLevelModifier
   |  |           |  |        |  |  +- T-public
   |  |           |  |        |  +- T-typealias
   |  |           |  |        |  +- TypealiasName
   |  |           |  |        |     +- Identifier
   |  |           |  |        |        +- T-Identifier
   |  |           |  |        +- TypealiasAssignment
   |  |           |  |           +- T-eq
   |  |           |  |           +- SType
   |  |           |  |              +- TypeIdentifier
   |  |           |  |                 +- TypeName
   |  |           |  |                 |  +- Identifier
   |  |           |  |                 |     +- T-Identifier
   |  |           |  |                 +- GenericArgumentClause
   |  |           |  |                    +- T-lt
   |  |           |  |                    +- GenericArgumentList
   |  |           |  |                    |  +- GenericArgument
   |  |           |  |                    |  |  +- SType
   |  |           |  |                    |  |     +- TypeIdentifier
   |  |           |  |                    |  |        +- TypeName
   |  |           |  |                    |  |           +- Identifier
   |  |           |  |                    |  |              +- T-Identifier
   |  |           |  |                    |  +- T-comma
   |  |           |  |                    |  +- GenericArgument
   |  |           |  |                    |     +- SType
   |  |           |  |                    |        +- TypeIdentifier
   |  |           |  |                    |           +- TypeName
   |  |           |  |                    |              +- Identifier
   |  |           |  |                    |                 +- T-Identifier
   |  |           |  |                    +- T-gt
   |  |           |  +- ExtensionMember
   |  |           |  |  +- Declaration
   |  |           |  |     +- VariableDeclaration
   |  |           |  |        +- VariableDeclarationHead
   |  |           |  |        |  +- DeclarationModifiers
   |  |           |  |        |  |  +- DeclarationModifier
   |  |           |  |        |  |     +- AccessLevelModifier
   |  |           |  |        |  |        +- T-public
   |  |           |  |        |  +- T-var
   |  |           |  |        +- VariableName
   |  |           |  |        |  +- Identifier
   |  |           |  |        |     +- T-Identifier
   |  |           |  |        +- TypeAnnotation
   |  |           |  |        |  +- T-colon
   |  |           |  |        |  +- SType
   |  |           |  |        |     +- TypeIdentifier
   |  |           |  |        |        +- TypeName
   |  |           |  |        |           +- Identifier
   |  |           |  |        |              +- T-Identifier
   |  |           |  |        +- CodeBlock
   |  |           |  |           +- T-lbrace
   |  |           |  |           +- Statements
   |  |           |  |           |  +- Statement
   |  |           |  |           |  |  +- ControlTransferStatement
   |  |           |  |           |  |     +- ReturnStatement
   |  |           |  |           |  |        +- T-return
   |  |           |  |           |  |        +- Expression
   |  |           |  |           |  |           +- PrefixExpression
   |  |           |  |           |  |              +- PostfixExpression
   |  |           |  |           |  |                 +- PostfixExpression
   |  |           |  |           |  |                 |  +- PostfixExpression
   |  |           |  |           |  |                 |  |  +- PrimaryExpression
   |  |           |  |           |  |                 |  |     +- Identifier
   |  |           |  |           |  |                 |  |        +- T-Identifier
   |  |           |  |           |  |                 |  +- T-dot
   |  |           |  |           |  |                 |  +- Identifier
   |  |           |  |           |  |                 |     +- T-Identifier
   |  |           |  |           |  |                 +- PostfixOperator
   |  |           |  |           |  |                    +- Operator
   |  |           |  |           |  |                       +- OperatorHead
   |  |           |  |           |  |                          +- T-double-eq
   |  |           |  |           |  +- Statement
   |  |           |  |           |     +- Expression
   |  |           |  |           |        +- PrefixExpression
   |  |           |  |           |           +- PostfixExpression
   |  |           |  |           |              +- PrimaryExpression
   |  |           |  |           |                 +- LiteralExpression
   |  |           |  |           |                    +- Literal
   |  |           |  |           |                       +- NumericLiteral
   |  |           |  |           |                          +- IntegerLiteral
   |  |           |  |           |                             +- T-DecimalLiteral
   |  |           |  |           +- T-rbrace
   |  |           |  +- ExtensionMember
   |  |           |  |  +- Declaration
   |  |           |  |     +- FunctionDeclaration
   |  |           |  |        +- FunctionHead
   |  |           |  |        |  +- DeclarationModifiers
   |  |           |  |        |  |  +- DeclarationModifier
   |  |           |  |        |  |     +- AccessLevelModifier
   |  |           |  |        |  |        +- T-public
   |  |           |  |        |  +- T-func
   |  |           |  |        +- FunctionName
   |  |           |  |        |  +- Identifier
   |  |           |  |        |     +- T-Identifier
   |  |           |  |        +- FunctionSignature
   |  |           |  |        |  +- ParameterClause
   |  |           |  |        |  |  +- T-lparen
   |  |           |  |        |  |  +- T-rparen
   |  |           |  |        |  +- FunctionResult
   |  |           |  |        |     +- T-rarrow
   |  |           |  |        |     +- SType
   |  |           |  |        |        +- TypeIdentifier
   |  |           |  |        |           +- TypeName
   |  |           |  |        |              +- Identifier
   |  |           |  |        |                 +- T-Identifier
   |  |           |  |        +- FunctionBody
   |  |           |  |           +- CodeBlock
   |  |           |  |              +- T-lbrace
   |  |           |  |              +- Statements
   |  |           |  |              |  +- Statement
   |  |           |  |              |     +- ControlTransferStatement
   |  |           |  |              |        +- ReturnStatement
   |  |           |  |              |           +- T-return
   |  |           |  |              |           +- Expression
   |  |           |  |              |              +- PrefixExpression
   |  |           |  |              |                 +- PostfixExpression
   |  |           |  |              |                    +- PostfixExpression
   |  |           |  |              |                    |  +- PrimaryExpression
   |  |           |  |              |                    |     +- Identifier
   |  |           |  |              |                    |        +- T-Identifier
   |  |           |  |              |                    +- FunctionCallArgumentClause
   |  |           |  |              |                       +- T-lparen
   |  |           |  |              |                       +- FunctionCallArgumentList
   |  |           |  |              |                       |  +- FunctionCallArgument
   |  |           |  |              |                       |     +- Expression
   |  |           |  |              |                       |        +- PrefixExpression
   |  |           |  |              |                       |           +- PostfixExpression
   |  |           |  |              |                       |              +- PostfixExpression
   |  |           |  |              |                       |              |  +- PrimaryExpression
   |  |           |  |              |                       |              |     +- Identifier
   |  |           |  |              |                       |              |        +- T-Identifier
   |  |           |  |              |                       |              +- FunctionCallArgumentClause
   |  |           |  |              |                       |                 +- T-lparen
   |  |           |  |              |                       |                 +- FunctionCallArgumentList
   |  |           |  |              |                       |                 |  +- FunctionCallArgument
   |  |           |  |              |                       |                 |  |  +- FunctionCallIdentifier
   |  |           |  |              |                       |                 |  |  |  +- Identifier
   |  |           |  |              |                       |                 |  |  |     +- T-Identifier
   |  |           |  |              |                       |                 |  |  +- T-colon
   |  |           |  |              |                       |                 |  |  +- Expression
   |  |           |  |              |                       |                 |  |     +- PrefixExpression
   |  |           |  |              |                       |                 |  |        +- PostfixExpression
   |  |           |  |              |                       |                 |  |           +- PrimaryExpression
   |  |           |  |              |                       |                 |  |              +- Identifier
   |  |           |  |              |                       |                 |  |                 +- T-Identifier
   |  |           |  |              |                       |                 |  +- T-comma
   |  |           |  |              |                       |                 |  +- FunctionCallArgument
   |  |           |  |              |                       |                 |     +- FunctionCallIdentifier
   |  |           |  |              |                       |                 |     |  +- Identifier
   |  |           |  |              |                       |                 |     |     +- T-Identifier
   |  |           |  |              |                       |                 |     +- T-colon
   |  |           |  |              |                       |                 |     +- Expression
   |  |           |  |              |                       |                 |        +- PrefixExpression
   |  |           |  |              |                       |                 |           +- PostfixExpression
   |  |           |  |              |                       |                 |              +- PrimaryExpression
   |  |           |  |              |                       |                 |                 +- LiteralExpression
   |  |           |  |              |                       |                 |                    +- Literal
   |  |           |  |              |                       |                 |                       +- NumericLiteral
   |  |           |  |              |                       |                 |                          +- IntegerLiteral
   |  |           |  |              |                       |                 |                             +- T-DecimalLiteral
   |  |           |  |              |                       |                 +- T-rparen
   |  |           |  |              |                       +- T-rparen
   |  |           |  |              +- T-rbrace
   |  |           |  +- ExtensionMember
   |  |           |  |  +- Declaration
   |  |           |  |     +- FunctionDeclaration
   |  |           |  |        +- FunctionHead
   |  |           |  |        |  +- DeclarationModifiers
   |  |           |  |        |  |  +- DeclarationModifier
   |  |           |  |        |  |     +- AccessLevelModifier
   |  |           |  |        |  |        +- T-public
   |  |           |  |        |  +- T-func
   |  |           |  |        +- FunctionName
   |  |           |  |        |  +- Identifier
   |  |           |  |        |     +- T-Identifier
   |  |           |  |        +- FunctionSignature
   |  |           |  |        |  +- ParameterClause
   |  |           |  |        |  |  +- T-lparen
   |  |           |  |        |  |  +- ParameterList
   |  |           |  |        |  |  |  +- Parameter
   |  |           |  |        |  |  |     +- ExternalParameterName
   |  |           |  |        |  |  |     |  +- Identifier
   |  |           |  |        |  |  |     |     +- T-Identifier
   |  |           |  |        |  |  |     +- LocalParameterName
   |  |           |  |        |  |  |     |  +- Identifier
   |  |           |  |        |  |  |     |     +- T-Identifier
   |  |           |  |        |  |  |     +- TypeAnnotation
   |  |           |  |        |  |  |        +- T-colon
   |  |           |  |        |  |  |        +- SType
   |  |           |  |        |  |  |           +- TypeIdentifier
   |  |           |  |        |  |  |              +- TypeName
   |  |           |  |        |  |  |                 +- Identifier
   |  |           |  |        |  |  |                    +- T-Identifier
   |  |           |  |        |  |  +- T-rparen
   |  |           |  |        |  +- FunctionResult
   |  |           |  |        |     +- T-rarrow
   |  |           |  |        |     +- SType
   |  |           |  |        |        +- TypeIdentifier
   |  |           |  |        |           +- TypeName
   |  |           |  |        |              +- Identifier
   |  |           |  |        |                 +- T-Identifier
   |  |           |  |        +- FunctionBody
   |  |           |  |           +- CodeBlock
   |  |           |  |              +- T-lbrace
   |  |           |  |              +- Statements
   |  |           |  |              |  +- Statement
   |  |           |  |              |  |  +- Expression
   |  |           |  |              |  |     +- PrefixExpression
   |  |           |  |              |  |        +- PostfixExpression
   |  |           |  |              |  |           +- PostfixExpression
   |  |           |  |              |  |           |  +- PostfixExpression
   |  |           |  |              |  |           |  |  +- PostfixExpression
   |  |           |  |              |  |           |  |  |  +- PrimaryExpression
   |  |           |  |              |  |           |  |  |     +- Identifier
   |  |           |  |              |  |           |  |  |        +- T-Identifier
   |  |           |  |              |  |           |  |  +- T-dot
   |  |           |  |              |  |           |  |  +- Identifier
   |  |           |  |              |  |           |  |     +- T-Identifier
   |  |           |  |              |  |           |  +- T-dot
   |  |           |  |              |  |           |  +- Identifier
   |  |           |  |              |  |           |     +- T-Identifier
   |  |           |  |              |  |           +- FunctionCallArgumentClause
   |  |           |  |              |  |              +- T-lparen
   |  |           |  |              |  |              +- FunctionCallArgumentList
   |  |           |  |              |  |              |  +- FunctionCallArgument
   |  |           |  |              |  |              |     +- Expression
   |  |           |  |              |  |              |        +- PrefixExpression
   |  |           |  |              |  |              |           +- PostfixExpression
   |  |           |  |              |  |              |              +- PrimaryExpression
   |  |           |  |              |  |              |                 +- Identifier
   |  |           |  |              |  |              |                    +- T-Identifier
   |  |           |  |              |  |              +- T-rparen
   |  |           |  |              |  +- Statement
   |  |           |  |              |     +- ControlTransferStatement
   |  |           |  |              |        +- ReturnStatement
   |  |           |  |              |           +- T-return
   |  |           |  |              |           +- Expression
   |  |           |  |              |              +- PrefixExpression
   |  |           |  |              |                 +- PostfixExpression
   |  |           |  |              |                    +- PostfixExpression
   |  |           |  |              |                    |  +- PrimaryExpression
   |  |           |  |              |                    |     +- Identifier
   |  |           |  |              |                    |        +- T-Identifier
   |  |           |  |              |                    +- FunctionCallArgumentClause
   |  |           |  |              |                       +- T-lparen
   |  |           |  |              |                       +- FunctionCallArgumentList
   |  |           |  |              |                       |  +- FunctionCallArgument
   |  |           |  |              |                       |     +- Expression
   |  |           |  |              |                       |        +- PrefixExpression
   |  |           |  |              |                       |           +- PostfixExpression
   |  |           |  |              |                       |              +- PostfixExpression
   |  |           |  |              |                       |              |  +- PrimaryExpression
   |  |           |  |              |                       |              |     +- Identifier
   |  |           |  |              |                       |              |        +- T-Identifier
   |  |           |  |              |                       |              +- FunctionCallArgumentClause
   |  |           |  |              |                       |                 +- T-lparen
   |  |           |  |              |                       |                 +- FunctionCallArgumentList
   |  |           |  |              |                       |                 |  +- FunctionCallArgument
   |  |           |  |              |                       |                 |  |  +- FunctionCallIdentifier
   |  |           |  |              |                       |                 |  |  |  +- Identifier
   |  |           |  |              |                       |                 |  |  |     +- T-Identifier
   |  |           |  |              |                       |                 |  |  +- T-colon
   |  |           |  |              |                       |                 |  |  +- Expression
   |  |           |  |              |                       |                 |  |     +- PrefixExpression
   |  |           |  |              |                       |                 |  |        +- PostfixExpression
   |  |           |  |              |                       |                 |  |           +- PrimaryExpression
   |  |           |  |              |                       |                 |  |              +- Identifier
   |  |           |  |              |                       |                 |  |                 +- T-Identifier
   |  |           |  |              |                       |                 |  +- T-comma
   |  |           |  |              |                       |                 |  +- FunctionCallArgument
   |  |           |  |              |                       |                 |     +- FunctionCallIdentifier
   |  |           |  |              |                       |                 |     |  +- Identifier
   |  |           |  |              |                       |                 |     |     +- T-Identifier
   |  |           |  |              |                       |                 |     +- T-colon
   |  |           |  |              |                       |                 |     +- Expression
   |  |           |  |              |                       |                 |        +- PrefixExpression
   |  |           |  |              |                       |                 |           +- PostfixExpression
   |  |           |  |              |                       |                 |              +- PostfixExpression
   |  |           |  |              |                       |                 |              |  +- PrimaryExpression
   |  |           |  |              |                       |                 |              |     +- Identifier
   |  |           |  |              |                       |                 |              |        +- T-Identifier
   |  |           |  |              |                       |                 |              +- T-dot
   |  |           |  |              |                       |                 |              +- Identifier
   |  |           |  |              |                       |                 |                 +- T-Identifier
   |  |           |  |              |                       |                 +- T-rparen
   |  |           |  |              |                       +- T-rparen
   |  |           |  |              +- T-rbrace
   |  |           |  +- ExtensionMember
   |  |           |  |  +- Declaration
   |  |           |  |     +- FunctionDeclaration
   |  |           |  |        +- FunctionHead
   |  |           |  |        |  +- DeclarationModifiers
   |  |           |  |        |  |  +- DeclarationModifier
   |  |           |  |        |  |     +- AccessLevelModifier
   |  |           |  |        |  |        +- T-public
   |  |           |  |        |  +- T-func
   |  |           |  |        +- FunctionName
   |  |           |  |        |  +- Identifier
   |  |           |  |        |     +- T-Identifier
   |  |           |  |        +- FunctionSignature
   |  |           |  |        |  +- ParameterClause
   |  |           |  |        |  |  +- T-lparen
   |  |           |  |        |  |  +- ParameterList
   |  |           |  |        |  |  |  +- Parameter
   |  |           |  |        |  |  |     +- ExternalParameterName
   |  |           |  |        |  |  |     |  +- Identifier
   |  |           |  |        |  |  |     |     +- T-Identifier
   |  |           |  |        |  |  |     +- LocalParameterName
   |  |           |  |        |  |  |     |  +- Identifier
   |  |           |  |        |  |  |     |     +- T-Identifier
   |  |           |  |        |  |  |     +- TypeAnnotation
   |  |           |  |        |  |  |        +- T-colon
   |  |           |  |        |  |  |        +- SType
   |  |           |  |        |  |  |           +- TypeIdentifier
   |  |           |  |        |  |  |              +- TypeName
   |  |           |  |        |  |  |                 +- Identifier
   |  |           |  |        |  |  |                    +- T-Identifier
   |  |           |  |        |  |  +- T-rparen
   |  |           |  |        |  +- FunctionResult
   |  |           |  |        |     +- T-rarrow
   |  |           |  |        |     +- SType
   |  |           |  |        |        +- TypeIdentifier
   |  |           |  |        |           +- TypeName
   |  |           |  |        |              +- Identifier
   |  |           |  |        |                 +- T-Identifier
   |  |           |  |        +- FunctionBody
   |  |           |  |           +- CodeBlock
   |  |           |  |              +- T-lbrace
   |  |           |  |              +- Statements
   |  |           |  |              |  +- Statement
   |  |           |  |              |     +- ControlTransferStatement
   |  |           |  |              |        +- ReturnStatement
   |  |           |  |              |           +- T-return
   |  |           |  |              |           +- Expression
   |  |           |  |              |              +- PrefixExpression
   |  |           |  |              |                 +- PostfixExpression
   |  |           |  |              |                    +- PostfixExpression
   |  |           |  |              |                    |  +- PrimaryExpression
   |  |           |  |              |                    |     +- Identifier
   |  |           |  |              |                    |        +- T-Identifier
   |  |           |  |              |                    +- FunctionCallArgumentClause
   |  |           |  |              |                       +- T-lparen
   |  |           |  |              |                       +- FunctionCallArgumentList
   |  |           |  |              |                       |  +- FunctionCallArgument
   |  |           |  |              |                       |     +- Expression
   |  |           |  |              |                       |        +- PrefixExpression
   |  |           |  |              |                       |           +- PostfixExpression
   |  |           |  |              |                       |              +- PostfixExpression
   |  |           |  |              |                       |              |  +- PrimaryExpression
   |  |           |  |              |                       |              |     +- Identifier
   |  |           |  |              |                       |              |        +- T-Identifier
   |  |           |  |              |                       |              +- FunctionCallArgumentClause
   |  |           |  |              |                       |                 +- T-lparen
   |  |           |  |              |                       |                 +- FunctionCallArgumentList
   |  |           |  |              |                       |                 |  +- FunctionCallArgument
   |  |           |  |              |                       |                 |  |  +- FunctionCallIdentifier
   |  |           |  |              |                       |                 |  |  |  +- Identifier
   |  |           |  |              |                       |                 |  |  |     +- T-Identifier
   |  |           |  |              |                       |                 |  |  +- T-colon
   |  |           |  |              |                       |                 |  |  +- Expression
   |  |           |  |              |                       |                 |  |     +- PrefixExpression
   |  |           |  |              |                       |                 |  |        +- PostfixExpression
   |  |           |  |              |                       |                 |  |           +- PrimaryExpression
   |  |           |  |              |                       |                 |  |              +- Identifier
   |  |           |  |              |                       |                 |  |                 +- T-Identifier
   |  |           |  |              |                       |                 |  +- T-comma
   |  |           |  |              |                       |                 |  +- FunctionCallArgument
   |  |           |  |              |                       |                 |     +- FunctionCallIdentifier
   |  |           |  |              |                       |                 |     |  +- Identifier
   |  |           |  |              |                       |                 |     |     +- T-Identifier
   |  |           |  |              |                       |                 |     +- T-colon
   |  |           |  |              |                       |                 |     +- Expression
   |  |           |  |              |                       |                 |        +- PrefixExpression
   |  |           |  |              |                       |                 |           +- PostfixExpression
   |  |           |  |              |                       |                 |              +- PrimaryExpression
   |  |           |  |              |                       |                 |                 +- Identifier
   |  |           |  |              |                       |                 |                    +- T-Identifier
   |  |           |  |              |                       |                 +- T-rparen
   |  |           |  |              |                       +- T-rparen
   |  |           |  |              +- T-rbrace
   |  |           |  +- ExtensionMember
   |  |           |  |  +- Declaration
   |  |           |  |     +- FunctionDeclaration
   |  |           |  |        +- FunctionHead
   |  |           |  |        |  +- DeclarationModifiers
   |  |           |  |        |  |  +- DeclarationModifier
   |  |           |  |        |  |     +- AccessLevelModifier
   |  |           |  |        |  |        +- T-public
   |  |           |  |        |  +- T-func
   |  |           |  |        +- FunctionName
   |  |           |  |        |  +- Identifier
   |  |           |  |        |     +- T-Identifier
   |  |           |  |        +- FunctionSignature
   |  |           |  |        |  +- ParameterClause
   |  |           |  |        |  |  +- T-lparen
   |  |           |  |        |  |  +- ParameterList
   |  |           |  |        |  |  |  +- Parameter
   |  |           |  |        |  |  |  |  +- ExternalParameterName
   |  |           |  |        |  |  |  |  |  +- Identifier
   |  |           |  |        |  |  |  |  |     +- T-Identifier
   |  |           |  |        |  |  |  |  +- LocalParameterName
   |  |           |  |        |  |  |  |  |  +- Identifier
   |  |           |  |        |  |  |  |  |     +- T-Identifier
   |  |           |  |        |  |  |  |  +- TypeAnnotation
   |  |           |  |        |  |  |  |     +- T-colon
   |  |           |  |        |  |  |  |     +- SType
   |  |           |  |        |  |  |  |        +- TypeIdentifier
   |  |           |  |        |  |  |  |           +- TypeName
   |  |           |  |        |  |  |  |              +- Identifier
   |  |           |  |        |  |  |  |                 +- T-Identifier
   |  |           |  |        |  |  |  +- T-comma
   |  |           |  |        |  |  |  +- Parameter
   |  |           |  |        |  |  |     +- ExternalParameterName
   |  |           |  |        |  |  |     |  +- Identifier
   |  |           |  |        |  |  |     |     +- T-Identifier
   |  |           |  |        |  |  |     +- LocalParameterName
   |  |           |  |        |  |  |     |  +- Identifier
   |  |           |  |        |  |  |     |     +- T-Identifier
   |  |           |  |        |  |  |     +- TypeAnnotation
   |  |           |  |        |  |  |     |  +- T-colon
   |  |           |  |        |  |  |     |  +- SType
   |  |           |  |        |  |  |     |     +- TypeIdentifier
   |  |           |  |        |  |  |     |        +- TypeName
   |  |           |  |        |  |  |     |           +- Identifier
   |  |           |  |        |  |  |     |              +- T-Identifier
   |  |           |  |        |  |  |     +- DefaultArgumentClause
   |  |           |  |        |  |  |        +- T-eq
   |  |           |  |        |  |  |        +- Expression
   |  |           |  |        |  |  |           +- PrefixExpression
   |  |           |  |        |  |  |              +- PostfixExpression
   |  |           |  |        |  |  |                 +- PrimaryExpression
   |  |           |  |        |  |  |                    +- Keyword
   |  |           |  |        |  |  |                       +- T-Any
   |  |           |  |        |  |  +- T-rparen
   |  |           |  |        |  +- FunctionResult
   |  |           |  |        |     +- T-rarrow
   |  |           |  |        |     +- SType
   |  |           |  |        |        +- TypeIdentifier
   |  |           |  |        |           +- TypeName
   |  |           |  |        |              +- Identifier
   |  |           |  |        |                 +- T-Identifier
   |  |           |  |        +- FunctionBody
   |  |           |  |           +- CodeBlock
   |  |           |  |              +- T-lbrace
   |  |           |  |              +- Statements
   |  |           |  |              |  +- Statement
   |  |           |  |              |     +- ControlTransferStatement
   |  |           |  |              |        +- ReturnStatement
   |  |           |  |              |           +- T-return
   |  |           |  |              |           +- Expression
   |  |           |  |              |              +- PrefixExpression
   |  |           |  |              |                 +- PostfixExpression
   |  |           |  |              |                    +- PostfixExpression
   |  |           |  |              |                    |  +- PrimaryExpression
   |  |           |  |              |                    |     +- Identifier
   |  |           |  |              |                    |        +- T-Identifier
   |  |           |  |              |                    +- FunctionCallArgumentClause
   |  |           |  |              |                       +- T-lparen
   |  |           |  |              |                       +- FunctionCallArgumentList
   |  |           |  |              |                       |  +- FunctionCallArgument
   |  |           |  |              |                       |     +- Expression
   |  |           |  |              |                       |        +- PrefixExpression
   |  |           |  |              |                       |           +- PostfixExpression
   |  |           |  |              |                       |              +- PostfixExpression
   |  |           |  |              |                       |              |  +- PrimaryExpression
   |  |           |  |              |                       |              |     +- Identifier
   |  |           |  |              |                       |              |        +- T-Identifier
   |  |           |  |              |                       |              +- FunctionCallArgumentClause
   |  |           |  |              |                       |                 +- T-lparen
   |  |           |  |              |                       |                 +- FunctionCallArgumentList
   |  |           |  |              |                       |                 |  +- FunctionCallArgument
   |  |           |  |              |                       |                 |  |  +- FunctionCallIdentifier
   |  |           |  |              |                       |                 |  |  |  +- Identifier
   |  |           |  |              |                       |                 |  |  |     +- T-Identifier
   |  |           |  |              |                       |                 |  |  +- T-colon
   |  |           |  |              |                       |                 |  |  +- Expression
   |  |           |  |              |                       |                 |  |     +- PrefixExpression
   |  |           |  |              |                       |                 |  |        +- PostfixExpression
   |  |           |  |              |                       |                 |  |           +- PrimaryExpression
   |  |           |  |              |                       |                 |  |              +- Identifier
   |  |           |  |              |                       |                 |  |                 +- T-Identifier
   |  |           |  |              |                       |                 |  +- T-comma
   |  |           |  |              |                       |                 |  +- FunctionCallArgument
   |  |           |  |              |                       |                 |  |  +- FunctionCallIdentifier
   |  |           |  |              |                       |                 |  |  |  +- Identifier
   |  |           |  |              |                       |                 |  |  |     +- T-Identifier
   |  |           |  |              |                       |                 |  |  +- T-colon
   |  |           |  |              |                       |                 |  |  +- Expression
   |  |           |  |              |                       |                 |  |     +- PrefixExpression
   |  |           |  |              |                       |                 |  |        +- PostfixExpression
   |  |           |  |              |                       |                 |  |           +- PrimaryExpression
   |  |           |  |              |                       |                 |  |              +- Identifier
   |  |           |  |              |                       |                 |  |                 +- T-Identifier
   |  |           |  |              |                       |                 |  +- T-comma
   |  |           |  |              |                       |                 |  +- FunctionCallArgument
   |  |           |  |              |                       |                 |     +- FunctionCallIdentifier
   |  |           |  |              |                       |                 |     |  +- Identifier
   |  |           |  |              |                       |                 |     |     +- T-Identifier
   |  |           |  |              |                       |                 |     +- T-colon
   |  |           |  |              |                       |                 |     +- Expression
   |  |           |  |              |                       |                 |        +- PrefixExpression
   |  |           |  |              |                       |                 |           +- PostfixExpression
   |  |           |  |              |                       |                 |              +- PrimaryExpression
   |  |           |  |              |                       |                 |                 +- Identifier
   |  |           |  |              |                       |                 |                    +- T-Identifier
   |  |           |  |              |                       |                 +- T-rparen
   |  |           |  |              |                       +- T-rparen
   |  |           |  |              +- T-rbrace
   |  |           |  +- ExtensionMember
   |  |           |  |  +- Declaration
   |  |           |  |     +- FunctionDeclaration
   |  |           |  |        +- FunctionHead
   |  |           |  |        |  +- DeclarationModifiers
   |  |           |  |        |  |  +- DeclarationModifier
   |  |           |  |        |  |     +- AccessLevelModifier
   |  |           |  |        |  |        +- T-public
   |  |           |  |        |  +- T-func
   |  |           |  |        +- FunctionName
   |  |           |  |        |  +- Identifier
   |  |           |  |        |     +- T-Identifier
   |  |           |  |        +- FunctionSignature
   |  |           |  |        |  +- ParameterClause
   |  |           |  |        |  |  +- T-lparen
   |  |           |  |        |  |  +- ParameterList
   |  |           |  |        |  |  |  +- Parameter
   |  |           |  |        |  |  |     +- Attributes
   |  |           |  |        |  |  |     |  +- Attribute
   |  |           |  |        |  |  |     |     +- T-at-symbol
   |  |           |  |        |  |  |     |     +- AttributeName
   |  |           |  |        |  |  |     |        +- Identifier
   |  |           |  |        |  |  |     |           +- T-Identifier
   |  |           |  |        |  |  |     +- LocalParameterName
   |  |           |  |        |  |  |     |  +- Identifier
   |  |           |  |        |  |  |     |     +- T-Identifier
   |  |           |  |        |  |  |     +- TypeAnnotation
   |  |           |  |        |  |  |        +- T-colon
   |  |           |  |        |  |  |        +- SType
   |  |           |  |        |  |  |           +- FunctionType
   |  |           |  |        |  |  |              +- FunctionTypeArgumentClause
   |  |           |  |        |  |  |              |  +- T-lparen
   |  |           |  |        |  |  |              |  +- FunctionTypeArgumentList
   |  |           |  |        |  |  |              |  |  +- FunctionTypeArgument
   |  |           |  |        |  |  |              |  |     +- SType
   |  |           |  |        |  |  |              |  |        +- TypeIdentifier
   |  |           |  |        |  |  |              |  |           +- TypeName
   |  |           |  |        |  |  |              |  |              +- Identifier
   |  |           |  |        |  |  |              |  |                 +- T-Identifier
   |  |           |  |        |  |  |              |  +- T-rparen
   |  |           |  |        |  |  |              +- T-throws
   |  |           |  |        |  |  |              +- T-rarrow
   |  |           |  |        |  |  |              +- SType
   |  |           |  |        |  |  |                 +- TupleType
   |  |           |  |        |  |  |                    +- T-lparen
   |  |           |  |        |  |  |                    +- T-rparen
   |  |           |  |        |  |  +- T-rparen
   |  |           |  |        |  +- T-rethrows
   |  |           |  |        +- FunctionBody
   |  |           |  |           +- CodeBlock
   |  |           |  |              +- T-lbrace
   |  |           |  |              +- Statements
   |  |           |  |              |  +- Statement
   |  |           |  |              |     +- Expression
   |  |           |  |              |        +- TryOperator
   |  |           |  |              |        |  +- T-try
   |  |           |  |              |        +- PrefixExpression
   |  |           |  |              |           +- PostfixExpression
   |  |           |  |              |              +- PostfixExpression
   |  |           |  |              |              |  +- PostfixExpression
   |  |           |  |              |              |  |  +- PrimaryExpression
   |  |           |  |              |              |  |     +- Identifier
   |  |           |  |              |              |  |        +- T-Identifier
   |  |           |  |              |              |  +- T-dot
   |  |           |  |              |              |  +- Identifier
   |  |           |  |              |              |     +- T-Identifier
   |  |           |  |              |              +- FunctionCallArgumentClause
   |  |           |  |              |                 +- T-lparen
   |  |           |  |              |                 +- FunctionCallArgumentList
   |  |           |  |              |                 |  +- FunctionCallArgument
   |  |           |  |              |                 |     +- Expression
   |  |           |  |              |                 |        +- PrefixExpression
   |  |           |  |              |                 |           +- PostfixExpression
   |  |           |  |              |                 |              +- PrimaryExpression
   |  |           |  |              |                 |                 +- Identifier
   |  |           |  |              |                 |                    +- T-Identifier
   |  |           |  |              |                 +- T-rparen
   |  |           |  |              +- T-rbrace
   |  |           |  +- ExtensionMember
   |  |           |     +- Declaration
   |  |           |        +- FunctionDeclaration
   |  |           |           +- FunctionHead
   |  |           |           |  +- DeclarationModifiers
   |  |           |           |  |  +- DeclarationModifier
   |  |           |           |  |     +- AccessLevelModifier
   |  |           |           |  |        +- T-public
   |  |           |           |  +- T-func
   |  |           |           +- FunctionName
   |  |           |           |  +- Identifier
   |  |           |           |     +- T-Identifier
   |  |           |           +- FunctionSignature
   |  |           |           |  +- ParameterClause
   |  |           |           |  |  +- T-lparen
   |  |           |           |  |  +- ParameterList
   |  |           |           |  |  |  +- Parameter
   |  |           |           |  |  |     +- Attributes
   |  |           |           |  |  |     |  +- Attribute
   |  |           |           |  |  |     |     +- T-at-symbol
   |  |           |           |  |  |     |     +- AttributeName
   |  |           |           |  |  |     |        +- Identifier
   |  |           |           |  |  |     |           +- T-Identifier
   |  |           |           |  |  |     +- LocalParameterName
   |  |           |           |  |  |     |  +- Identifier
   |  |           |           |  |  |     |     +- T-Identifier
   |  |           |           |  |  |     +- TypeAnnotation
   |  |           |           |  |  |        +- T-colon
   |  |           |           |  |  |        +- SType
   |  |           |           |  |  |           +- FunctionType
   |  |           |           |  |  |              +- FunctionTypeArgumentClause
   |  |           |           |  |  |              |  +- T-lparen
   |  |           |           |  |  |              |  +- FunctionTypeArgumentList
   |  |           |           |  |  |              |  |  +- FunctionTypeArgument
   |  |           |           |  |  |              |  |     +- SType
   |  |           |           |  |  |              |  |        +- TypeIdentifier
   |  |           |           |  |  |              |  |           +- TypeName
   |  |           |           |  |  |              |  |              +- Identifier
   |  |           |           |  |  |              |  |                 +- T-Identifier
   |  |           |           |  |  |              |  +- T-rparen
   |  |           |           |  |  |              +- T-throws
   |  |           |           |  |  |              +- T-rarrow
   |  |           |           |  |  |              +- SType
   |  |           |           |  |  |                 +- TypeIdentifier
   |  |           |           |  |  |                    +- TypeName
   |  |           |           |  |  |                       +- Identifier
   |  |           |           |  |  |                          +- T-Identifier
   |  |           |           |  |  +- T-rparen
   |  |           |           |  +- T-rethrows
   |  |           |           |  +- FunctionResult
   |  |           |           |     +- T-rarrow
   |  |           |           |     +- SType
   |  |           |           |        +- TypeIdentifier
   |  |           |           |           +- TypeName
   |  |           |           |              +- Identifier
   |  |           |           |                 +- T-Identifier
   |  |           |           +- FunctionBody
   |  |           |              +- CodeBlock
   |  |           |                 +- T-lbrace
   |  |           |                 +- Statements
   |  |           |                 |  +- Statement
   |  |           |                 |     +- ControlTransferStatement
   |  |           |                 |        +- ReturnStatement
   |  |           |                 |           +- T-return
   |  |           |                 |           +- Expression
   |  |           |                 |              +- TryOperator
   |  |           |                 |              |  +- T-try
   |  |           |                 |              +- PrefixExpression
   |  |           |                 |                 +- PostfixExpression
   |  |           |                 |                    +- PostfixExpression
   |  |           |                 |                    |  +- PostfixExpression
   |  |           |                 |                    |  |  +- PrimaryExpression
   |  |           |                 |                    |  |     +- Identifier
   |  |           |                 |                    |  |        +- T-Identifier
   |  |           |                 |                    |  +- T-dot
   |  |           |                 |                    |  +- Identifier
   |  |           |                 |                    |     +- T-Identifier
   |  |           |                 |                    +- FunctionCallArgumentClause
   |  |           |                 |                       +- T-lparen
   |  |           |                 |                       +- FunctionCallArgumentList
   |  |           |                 |                       |  +- FunctionCallArgument
   |  |           |                 |                       |     +- Expression
   |  |           |                 |                       |        +- PrefixExpression
   |  |           |                 |                       |           +- PostfixExpression
   |  |           |                 |                       |              +- PrimaryExpression
   |  |           |                 |                       |                 +- Identifier
   |  |           |                 |                       |                    +- T-Identifier
   |  |           |                 |                       +- T-rparen
   |  |           |                 +- T-rbrace
   |  |           +- T-rbrace
   |  +- Statement
   |  |  +- Declaration
   |  |     +- ExtensionDeclaration
   |  |        +- T-extension
   |  |        +- TypeIdentifier
   |  |        |  +- TypeName
   |  |        |     +- Identifier
   |  |        |        +- T-Identifier
   |  |        +- TypeInheritanceClause
   |  |        |  +- T-colon
   |  |        |  +- TypeInheritanceList
   |  |        |     +- TypeIdentifier
   |  |        |        +- TypeName
   |  |        |           +- Identifier
   |  |        |              +- T-Identifier
   |  |        +- ExtensionBody
   |  |           +- T-lbrace
   |  |           +- ExtensionMembers
   |  |           |  +- ExtensionMember
   |  |           |  |  +- Declaration
   |  |           |  |     +- TypealiasDeclaration
   |  |           |  |        +- TypealiasHead
   |  |           |  |        |  +- AccessLevelModifier
   |  |           |  |        |  |  +- T-public
   |  |           |  |        |  +- T-typealias
   |  |           |  |        |  +- TypealiasName
   |  |           |  |        |     +- Identifier
   |  |           |  |        |        +- T-Identifier
   |  |           |  |        +- TypealiasAssignment
   |  |           |  |           +- T-eq
   |  |           |  |           +- SType
   |  |           |  |              +- TypeIdentifier
   |  |           |  |                 +- TypeName
   |  |           |  |                 |  +- Identifier
   |  |           |  |                 |     +- T-Identifier
   |  |           |  |                 +- GenericArgumentClause
   |  |           |  |                    +- T-lt
   |  |           |  |                    +- GenericArgumentList
   |  |           |  |                    |  +- GenericArgument
   |  |           |  |                    |  |  +- SType
   |  |           |  |                    |  |     +- TypeIdentifier
   |  |           |  |                    |  |        +- TypeName
   |  |           |  |                    |  |           +- Identifier
   |  |           |  |                    |  |              +- T-Identifier
   |  |           |  |                    |  +- T-comma
   |  |           |  |                    |  +- GenericArgument
   |  |           |  |                    |     +- SType
   |  |           |  |                    |        +- TypeIdentifier
   |  |           |  |                    |           +- TypeName
   |  |           |  |                    |              +- Identifier
   |  |           |  |                    |                 +- T-Identifier
   |  |           |  |                    +- T-gt
   |  |           |  +- ExtensionMember
   |  |           |  |  +- Declaration
   |  |           |  |     +- TypealiasDeclaration
   |  |           |  |        +- TypealiasHead
   |  |           |  |        |  +- AccessLevelModifier
   |  |           |  |        |  |  +- T-public
   |  |           |  |        |  +- T-typealias
   |  |           |  |        |  +- TypealiasName
   |  |           |  |        |     +- Identifier
   |  |           |  |        |        +- T-Identifier
   |  |           |  |        +- TypealiasAssignment
   |  |           |  |           +- T-eq
   |  |           |  |           +- SType
   |  |           |  |              +- TypeIdentifier
   |  |           |  |                 +- TypeName
   |  |           |  |                 |  +- Identifier
   |  |           |  |                 |     +- T-Identifier
   |  |           |  |                 +- GenericArgumentClause
   |  |           |  |                    +- T-lt
   |  |           |  |                    +- GenericArgumentList
   |  |           |  |                    |  +- GenericArgument
   |  |           |  |                    |  |  +- SType
   |  |           |  |                    |  |     +- TypeIdentifier
   |  |           |  |                    |  |        +- TypeName
   |  |           |  |                    |  |           +- Identifier
   |  |           |  |                    |  |              +- T-Identifier
   |  |           |  |                    |  +- T-comma
   |  |           |  |                    |  +- GenericArgument
   |  |           |  |                    |     +- SType
   |  |           |  |                    |        +- TypeIdentifier
   |  |           |  |                    |           +- TypeName
   |  |           |  |                    |              +- Identifier
   |  |           |  |                    |                 +- T-Identifier
   |  |           |  |                    +- T-gt
   |  |           |  +- ExtensionMember
   |  |           |  |  +- Declaration
   |  |           |  |     +- VariableDeclaration
   |  |           |  |        +- VariableDeclarationHead
   |  |           |  |        |  +- DeclarationModifiers
   |  |           |  |        |  |  +- DeclarationModifier
   |  |           |  |        |  |     +- AccessLevelModifier
   |  |           |  |        |  |        +- T-public
   |  |           |  |        |  +- T-var
   |  |           |  |        +- VariableName
   |  |           |  |        |  +- Identifier
   |  |           |  |        |     +- T-Identifier
   |  |           |  |        +- TypeAnnotation
   |  |           |  |        |  +- T-colon
   |  |           |  |        |  +- SType
   |  |           |  |        |     +- TypeIdentifier
   |  |           |  |        |        +- TypeName
   |  |           |  |        |           +- Identifier
   |  |           |  |        |              +- T-Identifier
   |  |           |  |        +- CodeBlock
   |  |           |  |           +- T-lbrace
   |  |           |  |           +- Statements
   |  |           |  |           |  +- Statement
   |  |           |  |           |     +- ControlTransferStatement
   |  |           |  |           |        +- ReturnStatement
   |  |           |  |           |           +- T-return
   |  |           |  |           |           +- Expression
   |  |           |  |           |              +- PrefixExpression
   |  |           |  |           |                 +- PostfixExpression
   |  |           |  |           |                    +- PostfixExpression
   |  |           |  |           |                    |  +- PrimaryExpression
   |  |           |  |           |                    |     +- Identifier
   |  |           |  |           |                    |        +- T-Identifier
   |  |           |  |           |                    +- FunctionCallArgumentClause
   |  |           |  |           |                       +- T-lparen
   |  |           |  |           |                       +- FunctionCallArgumentList
   |  |           |  |           |                       |  +- FunctionCallArgument
   |  |           |  |           |                       |     +- Expression
   |  |           |  |           |                       |        +- PrefixExpression
   |  |           |  |           |                       |           +- PostfixExpression
   |  |           |  |           |                       |              +- PostfixExpression
   |  |           |  |           |                       |              |  +- PrimaryExpression
   |  |           |  |           |                       |              |     +- Identifier
   |  |           |  |           |                       |              |        +- T-Identifier
   |  |           |  |           |                       |              +- FunctionCallArgumentClause
   |  |           |  |           |                       |                 +- T-lparen
   |  |           |  |           |                       |                 +- FunctionCallArgumentList
   |  |           |  |           |                       |                 |  +- FunctionCallArgument
   |  |           |  |           |                       |                 |     +- FunctionCallIdentifier
   |  |           |  |           |                       |                 |     |  +- Identifier
   |  |           |  |           |                       |                 |     |     +- T-Identifier
   |  |           |  |           |                       |                 |     +- T-colon
   |  |           |  |           |                       |                 |     +- Expression
   |  |           |  |           |                       |                 |        +- PrefixExpression
   |  |           |  |           |                       |                 |           +- PostfixExpression
   |  |           |  |           |                       |                 |              +- PrimaryExpression
   |  |           |  |           |                       |                 |                 +- Identifier
   |  |           |  |           |                       |                 |                    +- T-Identifier
   |  |           |  |           |                       |                 +- T-rparen
   |  |           |  |           |                       +- T-rparen
   |  |           |  |           +- T-rbrace
   |  |           |  +- ExtensionMember
   |  |           |  |  +- Declaration
   |  |           |  |     +- VariableDeclaration
   |  |           |  |        +- VariableDeclarationHead
   |  |           |  |        |  +- DeclarationModifiers
   |  |           |  |        |  |  +- DeclarationModifier
   |  |           |  |        |  |     +- AccessLevelModifier
   |  |           |  |        |  |        +- T-public
   |  |           |  |        |  +- T-var
   |  |           |  |        +- VariableName
   |  |           |  |        |  +- Identifier
   |  |           |  |        |     +- T-Identifier
   |  |           |  |        +- TypeAnnotation
   |  |           |  |        |  +- T-colon
   |  |           |  |        |  +- SType
   |  |           |  |        |     +- TypeIdentifier
   |  |           |  |        |        +- TypeName
   |  |           |  |        |           +- Identifier
   |  |           |  |        |              +- T-Identifier
   |  |           |  |        +- CodeBlock
   |  |           |  |           +- T-lbrace
   |  |           |  |           +- Statements
   |  |           |  |           |  +- Statement
   |  |           |  |           |     +- ControlTransferStatement
   |  |           |  |           |        +- ReturnStatement
   |  |           |  |           |           +- T-return
   |  |           |  |           |           +- Expression
   |  |           |  |           |              +- PrefixExpression
   |  |           |  |           |                 +- PostfixExpression
   |  |           |  |           |                    +- PostfixExpression
   |  |           |  |           |                    |  +- PrimaryExpression
   |  |           |  |           |                    |     +- Identifier
   |  |           |  |           |                    |        +- T-Identifier
   |  |           |  |           |                    +- FunctionCallArgumentClause
   |  |           |  |           |                       +- T-lparen
   |  |           |  |           |                       +- FunctionCallArgumentList
   |  |           |  |           |                       |  +- FunctionCallArgument
   |  |           |  |           |                       |     +- Expression
   |  |           |  |           |                       |        +- PrefixExpression
   |  |           |  |           |                       |           +- PostfixExpression
   |  |           |  |           |                       |              +- PostfixExpression
   |  |           |  |           |                       |              |  +- PrimaryExpression
   |  |           |  |           |                       |              |     +- Identifier
   |  |           |  |           |                       |              |        +- T-Identifier
   |  |           |  |           |                       |              +- FunctionCallArgumentClause
   |  |           |  |           |                       |                 +- T-lparen
   |  |           |  |           |                       |                 +- FunctionCallArgumentList
   |  |           |  |           |                       |                 |  +- FunctionCallArgument
   |  |           |  |           |                       |                 |     +- FunctionCallIdentifier
   |  |           |  |           |                       |                 |     |  +- Identifier
   |  |           |  |           |                       |                 |     |     +- T-Identifier
   |  |           |  |           |                       |                 |     +- T-colon
   |  |           |  |           |                       |                 |     +- Expression
   |  |           |  |           |                       |                 |        +- PrefixExpression
   |  |           |  |           |                       |                 |           +- PostfixExpression
   |  |           |  |           |                       |                 |              +- PrimaryExpression
   |  |           |  |           |                       |                 |                 +- Identifier
   |  |           |  |           |                       |                 |                    +- T-Identifier
   |  |           |  |           |                       |                 +- T-rparen
   |  |           |  |           |                       +- T-rparen
   |  |           |  |           +- T-rbrace
   |  |           |  +- ExtensionMember
   |  |           |  |  +- Declaration
   |  |           |  |     +- VariableDeclaration
   |  |           |  |        +- VariableDeclarationHead
   |  |           |  |        |  +- DeclarationModifiers
   |  |           |  |        |  |  +- DeclarationModifier
   |  |           |  |        |  |     +- AccessLevelModifier
   |  |           |  |        |  |        +- T-public
   |  |           |  |        |  +- T-var
   |  |           |  |        +- VariableName
   |  |           |  |        |  +- Identifier
   |  |           |  |        |     +- T-Identifier
   |  |           |  |        +- TypeAnnotation
   |  |           |  |        |  +- T-colon
   |  |           |  |        |  +- SType
   |  |           |  |        |     +- TypeIdentifier
   |  |           |  |        |        +- TypeName
   |  |           |  |        |           +- Identifier
   |  |           |  |        |              +- T-Identifier
   |  |           |  |        +- CodeBlock
   |  |           |  |           +- T-lbrace
   |  |           |  |           +- Statements
   |  |           |  |           |  +- Statement
   |  |           |  |           |     +- ControlTransferStatement
   |  |           |  |           |        +- ReturnStatement
   |  |           |  |           |           +- T-return
   |  |           |  |           |           +- Expression
   |  |           |  |           |              +- PrefixExpression
   |  |           |  |           |                 +- PostfixExpression
   |  |           |  |           |                    +- PostfixExpression
   |  |           |  |           |                    |  +- PrimaryExpression
   |  |           |  |           |                    |     +- Identifier
   |  |           |  |           |                    |        +- T-Identifier
   |  |           |  |           |                    +- T-dot
   |  |           |  |           |                    +- Identifier
   |  |           |  |           |                       +- T-Identifier
   |  |           |  |           +- T-rbrace
   |  |           |  +- ExtensionMember
   |  |           |  |  +- Declaration
   |  |           |  |     +- SubscriptDeclaration
   |  |           |  |        +- SubscriptHead
   |  |           |  |        |  +- DeclarationModifiers
   |  |           |  |        |  |  +- DeclarationModifier
   |  |           |  |        |  |     +- AccessLevelModifier
   |  |           |  |        |  |        +- T-public
   |  |           |  |        |  +- T-subscript
   |  |           |  |        |  +- ParameterClause
   |  |           |  |        |     +- T-lparen
   |  |           |  |        |     +- ParameterList
   |  |           |  |        |     |  +- Parameter
   |  |           |  |        |     |     +- LocalParameterName
   |  |           |  |        |     |     |  +- Identifier
   |  |           |  |        |     |     |     +- T-Identifier
   |  |           |  |        |     |     +- TypeAnnotation
   |  |           |  |        |     |        +- T-colon
   |  |           |  |        |     |        +- SType
   |  |           |  |        |     |           +- TypeIdentifier
   |  |           |  |        |     |              +- TypeName
   |  |           |  |        |     |                 +- Identifier
   |  |           |  |        |     |                    +- T-Identifier
   |  |           |  |        |     +- T-rparen
   |  |           |  |        +- SubscriptResult
   |  |           |  |        |  +- T-rarrow
   |  |           |  |        |  +- SType
   |  |           |  |        |     +- TypeIdentifier
   |  |           |  |        |        +- TypeName
   |  |           |  |        |           +- Identifier
   |  |           |  |        |              +- T-Identifier
   |  |           |  |        +- GetterSetterBlock
   |  |           |  |           +- T-lbrace
   |  |           |  |           +- GetterClause
   |  |           |  |           |  +- T-get
   |  |           |  |           |  +- CodeBlock
   |  |           |  |           |     +- T-lbrace
   |  |           |  |           |     +- Statements
   |  |           |  |           |     |  +- Statement
   |  |           |  |           |     |  |  +- Expression
   |  |           |  |           |     |  |     +- PrefixExpression
   |  |           |  |           |     |  |        +- PostfixExpression
   |  |           |  |           |     |  |           +- PostfixExpression
   |  |           |  |           |     |  |           |  +- PostfixExpression
   |  |           |  |           |     |  |           |  |  +- PostfixExpression
   |  |           |  |           |     |  |           |  |  |  +- PrimaryExpression
   |  |           |  |           |     |  |           |  |  |     +- Identifier
   |  |           |  |           |     |  |           |  |  |        +- T-Identifier
   |  |           |  |           |     |  |           |  |  +- T-dot
   |  |           |  |           |     |  |           |  |  +- Identifier
   |  |           |  |           |     |  |           |  |     +- T-Identifier
   |  |           |  |           |     |  |           |  +- T-dot
   |  |           |  |           |     |  |           |  +- Identifier
   |  |           |  |           |     |  |           |     +- T-Identifier
   |  |           |  |           |     |  |           +- FunctionCallArgumentClause
   |  |           |  |           |     |  |              +- T-lparen
   |  |           |  |           |     |  |              +- FunctionCallArgumentList
   |  |           |  |           |     |  |              |  +- FunctionCallArgument
   |  |           |  |           |     |  |              |     +- Expression
   |  |           |  |           |     |  |              |        +- PrefixExpression
   |  |           |  |           |     |  |              |           +- PostfixExpression
   |  |           |  |           |     |  |              |              +- PostfixExpression
   |  |           |  |           |     |  |              |              |  +- PrimaryExpression
   |  |           |  |           |     |  |              |              |     +- Keyword
   |  |           |  |           |     |  |              |              |        +- T-self
   |  |           |  |           |     |  |              |              +- T-dot
   |  |           |  |           |     |  |              |              +- Identifier
   |  |           |  |           |     |  |              |                 +- T-Identifier
   |  |           |  |           |     |  |              +- T-rparen
   |  |           |  |           |     |  +- Statement
   |  |           |  |           |     |     +- ControlTransferStatement
   |  |           |  |           |     |        +- ReturnStatement
   |  |           |  |           |     |           +- T-return
   |  |           |  |           |     |           +- Expression
   |  |           |  |           |     |              +- PrefixExpression
   |  |           |  |           |     |                 +- PostfixExpression
   |  |           |  |           |     |                    +- PostfixExpression
   |  |           |  |           |     |                    |  +- PostfixExpression
   |  |           |  |           |     |                    |  |  +- PrimaryExpression
   |  |           |  |           |     |                    |  |     +- Identifier
   |  |           |  |           |     |                    |  |        +- T-Identifier
   |  |           |  |           |     |                    |  +- T-dot
   |  |           |  |           |     |                    |  +- Identifier
   |  |           |  |           |     |                    |     +- T-Identifier
   |  |           |  |           |     |                    +- T-dot
   |  |           |  |           |     |                    +- Identifier
   |  |           |  |           |     |                       +- T-Identifier
   |  |           |  |           |     +- T-rbrace
   |  |           |  |           +- T-rbrace
   |  |           |  +- ExtensionMember
   |  |           |     +- Declaration
   |  |           |        +- SubscriptDeclaration
   |  |           |           +- SubscriptHead
   |  |           |           |  +- DeclarationModifiers
   |  |           |           |  |  +- DeclarationModifier
   |  |           |           |  |     +- AccessLevelModifier
   |  |           |           |  |        +- T-public
   |  |           |           |  +- T-subscript
   |  |           |           |  +- ParameterClause
   |  |           |           |     +- T-lparen
   |  |           |           |     +- ParameterList
   |  |           |           |     |  +- Parameter
   |  |           |           |     |     +- LocalParameterName
   |  |           |           |     |     |  +- Identifier
   |  |           |           |     |     |     +- T-Identifier
   |  |           |           |     |     +- TypeAnnotation
   |  |           |           |     |        +- T-colon
   |  |           |           |     |        +- SType
   |  |           |           |     |           +- TypeIdentifier
   |  |           |           |     |              +- TypeName
   |  |           |           |     |              |  +- Identifier
   |  |           |           |     |              |     +- T-Identifier
   |  |           |           |     |              +- GenericArgumentClause
   |  |           |           |     |                 +- T-lt
   |  |           |           |     |                 +- GenericArgumentList
   |  |           |           |     |                 |  +- GenericArgument
   |  |           |           |     |                 |     +- SType
   |  |           |           |     |                 |        +- TypeIdentifier
   |  |           |           |     |                 |           +- TypeName
   |  |           |           |     |                 |              +- Identifier
   |  |           |           |     |                 |                 +- T-Identifier
   |  |           |           |     |                 +- T-gt
   |  |           |           |     +- T-rparen
   |  |           |           +- SubscriptResult
   |  |           |           |  +- T-rarrow
   |  |           |           |  +- SType
   |  |           |           |     +- TypeIdentifier
   |  |           |           |        +- TypeName
   |  |           |           |        |  +- Identifier
   |  |           |           |        |     +- T-Identifier
   |  |           |           |        +- GenericArgumentClause
   |  |           |           |           +- T-lt
   |  |           |           |           +- GenericArgumentList
   |  |           |           |           |  +- GenericArgument
   |  |           |           |           |  |  +- SType
   |  |           |           |           |  |     +- TypeIdentifier
   |  |           |           |           |  |        +- TypeName
   |  |           |           |           |  |           +- Identifier
   |  |           |           |           |  |              +- T-Identifier
   |  |           |           |           |  +- T-comma
   |  |           |           |           |  +- GenericArgument
   |  |           |           |           |     +- SType
   |  |           |           |           |        +- TypeIdentifier
   |  |           |           |           |           +- TypeName
   |  |           |           |           |              +- Identifier
   |  |           |           |           |                 +- T-Identifier
   |  |           |           |           +- T-gt
   |  |           |           +- GetterSetterBlock
   |  |           |              +- T-lbrace
   |  |           |              +- GetterClause
   |  |           |              |  +- T-get
   |  |           |              |  +- CodeBlock
   |  |           |              |     +- T-lbrace
   |  |           |              |     +- Statements
   |  |           |              |     |  +- Statement
   |  |           |              |     |     +- ControlTransferStatement
   |  |           |              |     |        +- ReturnStatement
   |  |           |              |     |           +- T-return
   |  |           |              |     |           +- Expression
   |  |           |              |     |              +- PrefixExpression
   |  |           |              |     |                 +- PostfixExpression
   |  |           |              |     |                    +- PostfixExpression
   |  |           |              |     |                    |  +- PrimaryExpression
   |  |           |              |     |                    |     +- Identifier
   |  |           |              |     |                    |        +- T-Identifier
   |  |           |              |     |                    +- FunctionCallArgumentClause
   |  |           |              |     |                       +- T-lparen
   |  |           |              |     |                       +- FunctionCallArgumentList
   |  |           |              |     |                       |  +- FunctionCallArgument
   |  |           |              |     |                       |     +- FunctionCallIdentifier
   |  |           |              |     |                       |     |  +- Identifier
   |  |           |              |     |                       |     |     +- T-Identifier
   |  |           |              |     |                       |     +- T-colon
   |  |           |              |     |                       |     +- Expression
   |  |           |              |     |                       |        +- PrefixExpression
   |  |           |              |     |                       |           +- PostfixExpression
   |  |           |              |     |                       |              +- PrimaryExpression
   |  |           |              |     |                       |                 +- Identifier
   |  |           |              |     |                       |                    +- T-Identifier
   |  |           |              |     |                       +- T-rparen
   |  |           |              |     +- T-rbrace
   |  |           |              +- T-rbrace
   |  |           +- T-rbrace
   |  +- Statement
   |  |  +- Expression
   |  |     +- PrefixExpression
   |  |        +- PostfixExpression
   |  |           +- PrimaryExpression
   |  |              +- Keyword
   |  |                 +- T-public
   |  +- Statement
   |  |  +- Expression
   |  |     +- PrefixExpression
   |  |        +- PostfixExpression
   |  |           +- PrimaryExpression
   |  |              +- Keyword
   |  |                 +- T-enum
   |  +- Statement
   |  |  +- Expression
   |  |     +- PrefixExpression
   |  |        +- PostfixExpression
   |  |           +- PostfixExpression
   |  |           |  +- PrimaryExpression
   |  |           |     +- Identifier
   |  |           |        +- T-Identifier
   |  |           +- ClosureExpression
   |  |              +- T-lbrace
   |  |              +- Statements
   |  |              |  +- Statement
   |  |              |  |  +- Expression
   |  |              |  |     +- PrefixExpression
   |  |              |  |        +- PostfixExpression
   |  |              |  |           +- PrimaryExpression
   |  |              |  |              +- Keyword
   |  |              |  |                 +- T-case
   |  |              |  +- Statement
   |  |              |  |  +- Expression
   |  |              |  |     +- PrefixExpression
   |  |              |  |        +- PostfixExpression
   |  |              |  |           +- PrimaryExpression
   |  |              |  |              +- Identifier
   |  |              |  |                 +- T-Identifier
   |  |              |  +- Statement
   |  |              |  |  +- Expression
   |  |              |  |     +- PrefixExpression
   |  |              |  |        +- PostfixExpression
   |  |              |  |           +- PrimaryExpression
   |  |              |  |              +- Keyword
   |  |              |  |                 +- T-case
   |  |              |  +- Statement
   |  |              |  |  +- Expression
   |  |              |  |     +- PrefixExpression
   |  |              |  |        +- PostfixExpression
   |  |              |  |           +- PrimaryExpression
   |  |              |  |              +- Identifier
   |  |              |  |                 +- T-Identifier
   |  |              |  +- Statement
   |  |              |  |  +- Expression
   |  |              |  |     +- PrefixExpression
   |  |              |  |        +- PostfixExpression
   |  |              |  |           +- PrimaryExpression
   |  |              |  |              +- Keyword
   |  |              |  |                 +- T-case
   |  |              |  +- Statement
   |  |              |  |  +- Expression
   |  |              |  |     +- PrefixExpression
   |  |              |  |        +- PostfixExpression
   |  |              |  |           +- PrimaryExpression
   |  |              |  |              +- Identifier
   |  |              |  |                 +- T-Identifier
   |  |              |  +- Statement
   |  |              |  |  +- Expression
   |  |              |  |     +- PrefixExpression
   |  |              |  |        +- PostfixExpression
   |  |              |  |           +- PrimaryExpression
   |  |              |  |              +- Keyword
   |  |              |  |                 +- T-case
   |  |              |  +- Statement
   |  |              |     +- Expression
   |  |              |        +- PrefixExpression
   |  |              |           +- PostfixExpression
   |  |              |              +- PrimaryExpression
   |  |              |                 +- Keyword
   |  |              |                    +- T-Any
   |  |              +- T-rbrace
   |  +- Statement
   |  |  +- Declaration
   |  |     +- ExtensionDeclaration
   |  |        +- AccessLevelModifier
   |  |        |  +- T-public
   |  |        +- T-extension
   |  |        +- TypeIdentifier
   |  |        |  +- TypeName
   |  |        |     +- Identifier
   |  |        |        +- T-Identifier
   |  |        +- ExtensionBody
   |  |           +- T-lbrace
   |  |           +- ExtensionMembers
   |  |           |  +- ExtensionMember
   |  |           |  |  +- Declaration
   |  |           |  |     +- VariableDeclaration
   |  |           |  |        +- VariableDeclarationHead
   |  |           |  |        |  +- DeclarationModifiers
   |  |           |  |        |  |  +- DeclarationModifier
   |  |           |  |        |  |     +- AccessLevelModifier
   |  |           |  |        |  |        +- T-public
   |  |           |  |        |  +- T-var
   |  |           |  |        +- VariableName
   |  |           |  |        |  +- Identifier
   |  |           |  |        |     +- T-Identifier
   |  |           |  |        +- TypeAnnotation
   |  |           |  |        |  +- T-colon
   |  |           |  |        |  +- SType
   |  |           |  |        |     +- SType
   |  |           |  |        |     |  +- TypeIdentifier
   |  |           |  |        |     |     +- TypeName
   |  |           |  |        |     |        +- Identifier
   |  |           |  |        |     |           +- T-Identifier
   |  |           |  |        |     +- T-question
   |  |           |  |        +- CodeBlock
   |  |           |  |           +- T-lbrace
   |  |           |  |           +- Statements
   |  |           |  |           |  +- Statement
   |  |           |  |           |     +- ControlTransferStatement
   |  |           |  |           |        +- ReturnStatement
   |  |           |  |           |           +- T-return
   |  |           |  |           |           +- Expression
   |  |           |  |           |              +- PrefixExpression
   |  |           |  |           |                 +- PostfixExpression
   |  |           |  |           |                    +- PostfixExpression
   |  |           |  |           |                    |  +- PrimaryExpression
   |  |           |  |           |                    |     +- Identifier
   |  |           |  |           |                    |        +- T-Identifier
   |  |           |  |           |                    +- T-dot
   |  |           |  |           |                    +- Identifier
   |  |           |  |           |                       +- T-Identifier
   |  |           |  |           +- T-rbrace
   |  |           |  +- ExtensionMember
   |  |           |  |  +- Declaration
   |  |           |  |     +- VariableDeclaration
   |  |           |  |        +- VariableDeclarationHead
   |  |           |  |        |  +- DeclarationModifiers
   |  |           |  |        |  |  +- DeclarationModifier
   |  |           |  |        |  |     +- AccessLevelModifier
   |  |           |  |        |  |        +- T-public
   |  |           |  |        |  +- T-var
   |  |           |  |        +- VariableName
   |  |           |  |        |  +- Identifier
   |  |           |  |        |     +- T-Identifier
   |  |           |  |        +- TypeAnnotation
   |  |           |  |        |  +- T-colon
   |  |           |  |        |  +- SType
   |  |           |  |        |     +- SType
   |  |           |  |        |     |  +- TypeIdentifier
   |  |           |  |        |     |     +- TypeName
   |  |           |  |        |     |        +- Identifier
   |  |           |  |        |     |           +- T-Identifier
   |  |           |  |        |     +- T-question
   |  |           |  |        +- CodeBlock
   |  |           |  |           +- T-lbrace
   |  |           |  |           +- Statements
   |  |           |  |           |  +- Statement
   |  |           |  |           |     +- ControlTransferStatement
   |  |           |  |           |        +- ReturnStatement
   |  |           |  |           |           +- T-return
   |  |           |  |           |           +- Expression
   |  |           |  |           |              +- PrefixExpression
   |  |           |  |           |                 +- PostfixExpression
   |  |           |  |           |                    +- PostfixExpression
   |  |           |  |           |                    |  +- PrimaryExpression
   |  |           |  |           |                    |     +- Identifier
   |  |           |  |           |                    |        +- T-Identifier
   |  |           |  |           |                    +- T-dot
   |  |           |  |           |                    +- Identifier
   |  |           |  |           |                       +- T-Identifier
   |  |           |  |           +- T-rbrace
   |  |           |  +- ExtensionMember
   |  |           |  |  +- Declaration
   |  |           |  |     +- FunctionDeclaration
   |  |           |  |        +- FunctionHead
   |  |           |  |        |  +- Attributes
   |  |           |  |        |  |  +- Attribute
   |  |           |  |        |  |     +- T-at-symbol
   |  |           |  |        |  |     +- AttributeName
   |  |           |  |        |  |        +- Identifier
   |  |           |  |        |  |           +- T-Identifier
   |  |           |  |        |  +- DeclarationModifiers
   |  |           |  |        |  |  +- DeclarationModifier
   |  |           |  |        |  |     +- AccessLevelModifier
   |  |           |  |        |  |        +- T-public
   |  |           |  |        |  +- T-func
   |  |           |  |        +- FunctionName
   |  |           |  |        |  +- Identifier
   |  |           |  |        |     +- T-Identifier
   |  |           |  |        +- FunctionSignature
   |  |           |  |        |  +- ParameterClause
   |  |           |  |        |  |  +- T-lparen
   |  |           |  |        |  |  +- ParameterList
   |  |           |  |        |  |  |  +- Parameter
   |  |           |  |        |  |  |     +- LocalParameterName
   |  |           |  |        |  |  |     |  +- Identifier
   |  |           |  |        |  |  |     |     +- T-Identifier
   |  |           |  |        |  |  |     +- TypeAnnotation
   |  |           |  |        |  |  |        +- T-colon
   |  |           |  |        |  |  |        +- SType
   |  |           |  |        |  |  |           +- TypeIdentifier
   |  |           |  |        |  |  |              +- TypeName
   |  |           |  |        |  |  |                 +- Identifier
   |  |           |  |        |  |  |                    +- T-Identifier
   |  |           |  |        |  |  +- T-rparen
   |  |           |  |        |  +- FunctionResult
   |  |           |  |        |     +- T-rarrow
   |  |           |  |        |     +- SType
   |  |           |  |        |        +- TypeIdentifier
   |  |           |  |        |           +- TypeName
   |  |           |  |        |              +- Identifier
   |  |           |  |        |                 +- T-Identifier
   |  |           |  |        +- FunctionBody
   |  |           |  |           +- CodeBlock
   |  |           |  |              +- T-lbrace
   |  |           |  |              +- Statements
   |  |           |  |              |  +- Statement
   |  |           |  |              |  |  +- Expression
   |  |           |  |              |  |     +- PrefixExpression
   |  |           |  |              |  |        +- PostfixExpression
   |  |           |  |              |  |           +- PostfixExpression
   |  |           |  |              |  |           |  +- PrimaryExpression
   |  |           |  |              |  |           |     +- Identifier
   |  |           |  |              |  |           |        +- T-Identifier
   |  |           |  |              |  |           +- FunctionCallArgumentClause
   |  |           |  |              |  |              +- T-lparen
   |  |           |  |              |  |              +- FunctionCallArgumentList
   |  |           |  |              |  |              |  +- FunctionCallArgument
   |  |           |  |              |  |              |     +- Expression
   |  |           |  |              |  |              |        +- PrefixExpression
   |  |           |  |              |  |              |        |  +- PostfixExpression
   |  |           |  |              |  |              |        |     +- PrimaryExpression
   |  |           |  |              |  |              |        |        +- Identifier
   |  |           |  |              |  |              |        |           +- T-Identifier
   |  |           |  |              |  |              |        +- BinaryExpression
   |  |           |  |              |  |              |        |  +- BinaryOperator
   |  |           |  |              |  |              |        |  |  +- Operator
   |  |           |  |              |  |              |        |  |     +- OperatorHead
   |  |           |  |              |  |              |        |  |        +- T-ge
   |  |           |  |              |  |              |        |  +- PrefixExpression
   |  |           |  |              |  |              |        |     +- PostfixExpression
   |  |           |  |              |  |              |        |        +- PrimaryExpression
   |  |           |  |              |  |              |        |           +- LiteralExpression
   |  |           |  |              |  |              |        |              +- Literal
   |  |           |  |              |  |              |        |                 +- NumericLiteral
   |  |           |  |              |  |              |        |                    +- IntegerLiteral
   |  |           |  |              |  |              |        |                       +- T-DecimalLiteral
   |  |           |  |              |  |              |        +- BinaryExpression
   |  |           |  |              |  |              |        |  +- BinaryOperator
   |  |           |  |              |  |              |        |  |  +- Operator
   |  |           |  |              |  |              |        |  |     +- OperatorHead
   |  |           |  |              |  |              |        |  |        +- T-double-amp
   |  |           |  |              |  |              |        |  +- PrefixExpression
   |  |           |  |              |  |              |        |     +- PostfixExpression
   |  |           |  |              |  |              |        |        +- PrimaryExpression
   |  |           |  |              |  |              |        |           +- Identifier
   |  |           |  |              |  |              |        |              +- T-Identifier
   |  |           |  |              |  |              |        +- BinaryExpression
   |  |           |  |              |  |              |           +- BinaryOperator
   |  |           |  |              |  |              |           |  +- Operator
   |  |           |  |              |  |              |           |     +- OperatorHead
   |  |           |  |              |  |              |           |        +- T-lt
   |  |           |  |              |  |              |           +- PrefixExpression
   |  |           |  |              |  |              |              +- PostfixExpression
   |  |           |  |              |  |              |                 +- PrimaryExpression
   |  |           |  |              |  |              |                    +- Identifier
   |  |           |  |              |  |              |                       +- T-Identifier
   |  |           |  |              |  |              +- T-rparen
   |  |           |  |              |  +- Statement
   |  |           |  |              |  |  +- Declaration
   |  |           |  |              |  |     +- VariableDeclaration
   |  |           |  |              |  |        +- VariableDeclarationHead
   |  |           |  |              |  |        |  +- T-var
   |  |           |  |              |  |        +- PatternInitializerList
   |  |           |  |              |  |           +- PatternInitializer
   |  |           |  |              |  |              +- Pattern
   |  |           |  |              |  |              |  +- IdentifierPattern
   |  |           |  |              |  |              |     +- Identifier
   |  |           |  |              |  |              |        +- T-Identifier
   |  |           |  |              |  |              +- Initializer
   |  |           |  |              |  |                 +- T-eq
   |  |           |  |              |  |                 +- Expression
   |  |           |  |              |  |                    +- PrefixExpression
   |  |           |  |              |  |                       +- PostfixExpression
   |  |           |  |              |  |                          +- PrimaryExpression
   |  |           |  |              |  |                             +- Identifier
   |  |           |  |              |  |                                +- T-Identifier
   |  |           |  |              |  +- Statement
   |  |           |  |              |  |  +- Declaration
   |  |           |  |              |  |     +- VariableDeclaration
   |  |           |  |              |  |        +- VariableDeclarationHead
   |  |           |  |              |  |        |  +- T-var
   |  |           |  |              |  |        +- PatternInitializerList
   |  |           |  |              |  |           +- PatternInitializer
   |  |           |  |              |  |              +- Pattern
   |  |           |  |              |  |              |  +- IdentifierPattern
   |  |           |  |              |  |              |     +- Identifier
   |  |           |  |              |  |              |        +- T-Identifier
   |  |           |  |              |  |              +- Initializer
   |  |           |  |              |  |                 +- T-eq
   |  |           |  |              |  |                 +- Expression
   |  |           |  |              |  |                    +- PrefixExpression
   |  |           |  |              |  |                       +- PostfixExpression
   |  |           |  |              |  |                          +- PrimaryExpression
   |  |           |  |              |  |                             +- Identifier
   |  |           |  |              |  |                                +- T-Identifier
   |  |           |  |              |  +- Statement
   |  |           |  |              |  |  +- LoopStatement
   |  |           |  |              |  |     +- WhileStatement
   |  |           |  |              |  |        +- T-while
   |  |           |  |              |  |        +- ConditionList
   |  |           |  |              |  |        |  +- Condition
   |  |           |  |              |  |        |     +- Expression
   |  |           |  |              |  |        |        +- PrefixExpression
   |  |           |  |              |  |        |           +- PrefixOperator
   |  |           |  |              |  |        |           |  +- Operator
   |  |           |  |              |  |        |           |     +- OperatorHead
   |  |           |  |              |  |        |           |        +- T-bang
   |  |           |  |              |  |        |           +- PostfixExpression
   |  |           |  |              |  |        |              +- PostfixExpression
   |  |           |  |              |  |        |              |  +- PrimaryExpression
   |  |           |  |              |  |        |              |     +- Identifier
   |  |           |  |              |  |        |              |        +- T-Identifier
   |  |           |  |              |  |        |              +- T-dot
   |  |           |  |              |  |        |              +- Identifier
   |  |           |  |              |  |        |                 +- T-Identifier
   |  |           |  |              |  |        +- CodeBlock
   |  |           |  |              |  |           +- T-lbrace
   |  |           |  |              |  |           +- Statements
   |  |           |  |              |  |           |  +- Statement
   |  |           |  |              |  |           |  |  +- Declaration
   |  |           |  |              |  |           |  |     +- ConstantDeclaration
   |  |           |  |              |  |           |  |        +- T-let
   |  |           |  |              |  |           |  |        +- PatternInitializerList
   |  |           |  |              |  |           |  |           +- PatternInitializer
   |  |           |  |              |  |           |  |              +- Pattern
   |  |           |  |              |  |           |  |              |  +- IdentifierPattern
   |  |           |  |              |  |           |  |              |     +- Identifier
   |  |           |  |              |  |           |  |              |        +- T-Identifier
   |  |           |  |              |  |           |  |              +- Initializer
   |  |           |  |              |  |           |  |                 +- T-eq
   |  |           |  |              |  |           |  |                 +- Expression
   |  |           |  |              |  |           |  |                    +- PrefixExpression
   |  |           |  |              |  |           |  |                       +- PostfixExpression
   |  |           |  |              |  |           |  |                          +- PostfixExpression
   |  |           |  |              |  |           |  |                          |  +- PostfixExpression
   |  |           |  |              |  |           |  |                          |  |  +- PrimaryExpression
   |  |           |  |              |  |           |  |                          |  |     +- Identifier
   |  |           |  |              |  |           |  |                          |  |        +- T-Identifier
   |  |           |  |              |  |           |  |                          |  +- T-dot
   |  |           |  |              |  |           |  |                          |  +- Identifier
   |  |           |  |              |  |           |  |                          |     +- T-Identifier
   |  |           |  |              |  |           |  |                          +- FunctionCallArgumentClause
   |  |           |  |              |  |           |  |                             +- T-lparen
   |  |           |  |              |  |           |  |                             +- FunctionCallArgumentList
   |  |           |  |              |  |           |  |                             |  +- FunctionCallArgument
   |  |           |  |              |  |           |  |                             |     +- Expression
   |  |           |  |              |  |           |  |                             |        +- PrefixExpression
   |  |           |  |              |  |           |  |                             |           +- PostfixExpression
   |  |           |  |              |  |           |  |                             |              +- PrimaryExpression
   |  |           |  |              |  |           |  |                             |                 +- Identifier
   |  |           |  |              |  |           |  |                             |                    +- T-Identifier
   |  |           |  |              |  |           |  |                             +- T-rparen
   |  |           |  |              |  |           |  +- Statement
   |  |           |  |              |  |           |  |  +- BranchStatement
   |  |           |  |              |  |           |  |     +- IfStatement
   |  |           |  |              |  |           |  |        +- T-if
   |  |           |  |              |  |           |  |        +- ConditionList
   |  |           |  |              |  |           |  |        |  +- Condition
   |  |           |  |              |  |           |  |        |     +- Expression
   |  |           |  |              |  |           |  |        |        +- PrefixExpression
   |  |           |  |              |  |           |  |        |           +- PostfixExpression
   |  |           |  |              |  |           |  |        |              +- PostfixExpression
   |  |           |  |              |  |           |  |        |              |  +- PrimaryExpression
   |  |           |  |              |  |           |  |        |              |     +- Identifier
   |  |           |  |              |  |           |  |        |              |        +- T-Identifier
   |  |           |  |              |  |           |  |        |              +- T-dot
   |  |           |  |              |  |           |  |        |              +- Identifier
   |  |           |  |              |  |           |  |        |                 +- T-Identifier
   |  |           |  |              |  |           |  |        +- CodeBlock
   |  |           |  |              |  |           |  |           +- T-lbrace
   |  |           |  |              |  |           |  |           +- Statements
   |  |           |  |              |  |           |  |           |  +- Statement
   |  |           |  |              |  |           |  |           |     +- ControlTransferStatement
   |  |           |  |              |  |           |  |           |        +- ReturnStatement
   |  |           |  |              |  |           |  |           |           +- T-return
   |  |           |  |              |  |           |  |           |           +- Expression
   |  |           |  |              |  |           |  |           |              +- PrefixExpression
   |  |           |  |              |  |           |  |           |                 +- PostfixExpression
   |  |           |  |              |  |           |  |           |                    +- PostfixExpression
   |  |           |  |              |  |           |  |           |                    |  +- PostfixExpression
   |  |           |  |              |  |           |  |           |                    |  |  +- PrimaryExpression
   |  |           |  |              |  |           |  |           |                    |  |     +- Identifier
   |  |           |  |              |  |           |  |           |                    |  |        +- T-Identifier
   |  |           |  |              |  |           |  |           |                    |  +- T-dot
   |  |           |  |              |  |           |  |           |                    |  +- Identifier
   |  |           |  |              |  |           |  |           |                    |     +- T-Identifier
   |  |           |  |              |  |           |  |           |                    +- T-lbracket
   |  |           |  |              |  |           |  |           |                    +- TupleElementList
   |  |           |  |              |  |           |  |           |                    |  +- TupleElement
   |  |           |  |              |  |           |  |           |                    |     +- Expression
   |  |           |  |              |  |           |  |           |                    |        +- PrefixExpression
   |  |           |  |              |  |           |  |           |                    |           +- PostfixExpression
   |  |           |  |              |  |           |  |           |                    |              +- PostfixExpression
   |  |           |  |              |  |           |  |           |                    |              |  +- PrimaryExpression
   |  |           |  |              |  |           |  |           |                    |              |     +- Identifier
   |  |           |  |              |  |           |  |           |                    |              |        +- T-Identifier
   |  |           |  |              |  |           |  |           |                    |              +- T-dot
   |  |           |  |              |  |           |  |           |                    |              +- Identifier
   |  |           |  |              |  |           |  |           |                    |                 +- T-Identifier
   |  |           |  |              |  |           |  |           |                    +- T-rbracket
   |  |           |  |              |  |           |  |           +- T-rbrace
   |  |           |  |              |  |           |  +- Statement
   |  |           |  |              |  |           |  |  +- Declaration
   |  |           |  |              |  |           |  |     +- ConstantDeclaration
   |  |           |  |              |  |           |  |        +- T-let
   |  |           |  |              |  |           |  |        +- PatternInitializerList
   |  |           |  |              |  |           |  |           +- PatternInitializer
   |  |           |  |              |  |           |  |              +- Pattern
   |  |           |  |              |  |           |  |              |  +- IdentifierPattern
   |  |           |  |              |  |           |  |              |     +- Identifier
   |  |           |  |              |  |           |  |              |        +- T-Identifier
   |  |           |  |              |  |           |  |              +- Initializer
   |  |           |  |              |  |           |  |                 +- T-eq
   |  |           |  |              |  |           |  |                 +- Expression
   |  |           |  |              |  |           |  |                    +- PrefixExpression
   |  |           |  |              |  |           |  |                       +- PostfixExpression
   |  |           |  |              |  |           |  |                          +- PostfixExpression
   |  |           |  |              |  |           |  |                          |  +- PostfixExpression
   |  |           |  |              |  |           |  |                          |  |  +- PrimaryExpression
   |  |           |  |              |  |           |  |                          |  |     +- Identifier
   |  |           |  |              |  |           |  |                          |  |        +- T-Identifier
   |  |           |  |              |  |           |  |                          |  +- T-dot
   |  |           |  |              |  |           |  |                          |  +- Identifier
   |  |           |  |              |  |           |  |                          |     +- T-Identifier
   |  |           |  |              |  |           |  |                          +- T-lbracket
   |  |           |  |              |  |           |  |                          +- TupleElementList
   |  |           |  |              |  |           |  |                          |  +- TupleElement
   |  |           |  |              |  |           |  |                          |     +- Expression
   |  |           |  |              |  |           |  |                          |        +- PrefixExpression
   |  |           |  |              |  |           |  |                          |           +- PostfixExpression
   |  |           |  |              |  |           |  |                          |              +- PostfixExpression
   |  |           |  |              |  |           |  |                          |              |  +- PrimaryExpression
   |  |           |  |              |  |           |  |                          |              |     +- Identifier
   |  |           |  |              |  |           |  |                          |              |        +- T-Identifier
   |  |           |  |              |  |           |  |                          |              +- T-dot
   |  |           |  |              |  |           |  |                          |              +- Identifier
   |  |           |  |              |  |           |  |                          |                 +- T-Identifier
   |  |           |  |              |  |           |  |                          +- T-rbracket
   |  |           |  |              |  |           |  +- Statement
   |  |           |  |              |  |           |  |  +- Expression
   |  |           |  |              |  |           |  |     +- PrefixExpression
   |  |           |  |              |  |           |  |        +- PostfixExpression
   |  |           |  |              |  |           |  |           +- PostfixExpression
   |  |           |  |              |  |           |  |           |  +- PrimaryExpression
   |  |           |  |              |  |           |  |           |     +- Identifier
   |  |           |  |              |  |           |  |           |        +- T-Identifier
   |  |           |  |              |  |           |  |           +- PostfixOperator
   |  |           |  |              |  |           |  |              +- Operator
   |  |           |  |              |  |           |  |                 +- OperatorHead
   |  |           |  |              |  |           |  |                 |  +- T-minus
   |  |           |  |              |  |           |  |                 +- OperatorCharacter
   |  |           |  |              |  |           |  |                    +- OperatorHead
   |  |           |  |              |  |           |  |                       +- T-eq
   |  |           |  |              |  |           |  +- Statement
   |  |           |  |              |  |           |  |  +- Expression
   |  |           |  |              |  |           |  |     +- PrefixExpression
   |  |           |  |              |  |           |  |        +- PostfixExpression
   |  |           |  |              |  |           |  |           +- PostfixExpression
   |  |           |  |              |  |           |  |           |  +- PostfixExpression
   |  |           |  |              |  |           |  |           |  |  +- PrimaryExpression
   |  |           |  |              |  |           |  |           |  |     +- Identifier
   |  |           |  |              |  |           |  |           |  |        +- T-Identifier
   |  |           |  |              |  |           |  |           |  +- T-dot
   |  |           |  |              |  |           |  |           |  +- Identifier
   |  |           |  |              |  |           |  |           |     +- T-Identifier
   |  |           |  |              |  |           |  |           +- PostfixOperator
   |  |           |  |              |  |           |  |              +- Operator
   |  |           |  |              |  |           |  |                 +- OperatorHead
   |  |           |  |              |  |           |  |                    +- T-minus
   |  |           |  |              |  |           |  +- Statement
   |  |           |  |              |  |           |  |  +- Expression
   |  |           |  |              |  |           |  |     +- PrefixExpression
   |  |           |  |              |  |           |  |        +- PostfixExpression
   |  |           |  |              |  |           |  |           +- PostfixExpression
   |  |           |  |              |  |           |  |           |  +- PrimaryExpression
   |  |           |  |              |  |           |  |           |     +- Identifier
   |  |           |  |              |  |           |  |           |        +- T-Identifier
   |  |           |  |              |  |           |  |           +- T-dot
   |  |           |  |              |  |           |  |           +- Identifier
   |  |           |  |              |  |           |  |              +- T-Identifier
   |  |           |  |              |  |           |  +- Statement
   |  |           |  |              |  |           |  |  +- Expression
   |  |           |  |              |  |           |  |     +- PrefixExpression
   |  |           |  |              |  |           |  |        +- PostfixExpression
   |  |           |  |              |  |           |  |           +- PostfixExpression
   |  |           |  |              |  |           |  |           |  +- PrimaryExpression
   |  |           |  |              |  |           |  |           |     +- Identifier
   |  |           |  |              |  |           |  |           |        +- T-Identifier
   |  |           |  |              |  |           |  |           +- PostfixOperator
   |  |           |  |              |  |           |  |              +- Operator
   |  |           |  |              |  |           |  |                 +- OperatorHead
   |  |           |  |              |  |           |  |                    +- T-eq
   |  |           |  |              |  |           |  +- Statement
   |  |           |  |              |  |           |     +- Expression
   |  |           |  |              |  |           |        +- PrefixExpression
   |  |           |  |              |  |           |           +- PostfixExpression
   |  |           |  |              |  |           |              +- PrimaryExpression
   |  |           |  |              |  |           |                 +- Identifier
   |  |           |  |              |  |           |                    +- T-Identifier
   |  |           |  |              |  |           +- T-rbrace
   |  |           |  |              |  +- Statement
   |  |           |  |              |     +- ControlTransferStatement
   |  |           |  |              |        +- ReturnStatement
   |  |           |  |              |           +- T-return
   |  |           |  |              |           +- Expression
   |  |           |  |              |              +- PrefixExpression
   |  |           |  |              |                 +- PostfixExpression
   |  |           |  |              |                    +- PostfixExpression
   |  |           |  |              |                    |  +- PostfixExpression
   |  |           |  |              |                    |  |  +- PrimaryExpression
   |  |           |  |              |                    |  |     +- Identifier
   |  |           |  |              |                    |  |        +- T-Identifier
   |  |           |  |              |                    |  +- T-dot
   |  |           |  |              |                    |  +- Identifier
   |  |           |  |              |                    |     +- T-Identifier
   |  |           |  |              |                    +- T-lbracket
   |  |           |  |              |                    +- TupleElementList
   |  |           |  |              |                    |  +- TupleElement
   |  |           |  |              |                    |     +- Expression
   |  |           |  |              |                    |        +- PrefixExpression
   |  |           |  |              |                    |           +- PostfixExpression
   |  |           |  |              |                    |              +- PrimaryExpression
   |  |           |  |              |                    |                 +- Identifier
   |  |           |  |              |                    |                    +- T-Identifier
   |  |           |  |              |                    +- T-rbracket
   |  |           |  |              +- T-rbrace
   |  |           |  +- ExtensionMember
   |  |           |  |  +- Declaration
   |  |           |  |     +- FunctionDeclaration
   |  |           |  |        +- FunctionHead
   |  |           |  |        |  +- Attributes
   |  |           |  |        |  |  +- Attribute
   |  |           |  |        |  |     +- T-at-symbol
   |  |           |  |        |  |     +- AttributeName
   |  |           |  |        |  |        +- Identifier
   |  |           |  |        |  |           +- T-Identifier
   |  |           |  |        |  +- DeclarationModifiers
   |  |           |  |        |  |  +- DeclarationModifier
   |  |           |  |        |  |     +- AccessLevelModifier
   |  |           |  |        |  |        +- T-public
   |  |           |  |        |  +- T-func
   |  |           |  |        +- FunctionName
   |  |           |  |        |  +- Identifier
   |  |           |  |        |     +- T-Identifier
   |  |           |  |        +- FunctionSignature
   |  |           |  |        |  +- ParameterClause
   |  |           |  |        |  |  +- T-lparen
   |  |           |  |        |  |  +- ParameterList
   |  |           |  |        |  |  |  +- Parameter
   |  |           |  |        |  |  |  |  +- LocalParameterName
   |  |           |  |        |  |  |  |  |  +- Identifier
   |  |           |  |        |  |  |  |  |     +- T-Identifier
   |  |           |  |        |  |  |  |  +- TypeAnnotation
   |  |           |  |        |  |  |  |     +- T-colon
   |  |           |  |        |  |  |  |     +- SType
   |  |           |  |        |  |  |  |        +- TypeIdentifier
   |  |           |  |        |  |  |  |           +- TypeName
   |  |           |  |        |  |  |  |              +- Identifier
   |  |           |  |        |  |  |  |                 +- T-Identifier
   |  |           |  |        |  |  |  +- T-comma
   |  |           |  |        |  |  |  +- Parameter
   |  |           |  |        |  |  |     +- ExternalParameterName
   |  |           |  |        |  |  |     |  +- Identifier
   |  |           |  |        |  |  |     |     +- T-Identifier
   |  |           |  |        |  |  |     +- LocalParameterName
   |  |           |  |        |  |  |     |  +- Identifier
   |  |           |  |        |  |  |     |     +- T-Identifier
   |  |           |  |        |  |  |     +- TypeAnnotation
   |  |           |  |        |  |  |     |  +- T-colon
   |  |           |  |        |  |  |     |  +- SType
   |  |           |  |        |  |  |     |     +- TypeIdentifier
   |  |           |  |        |  |  |     |        +- TypeName
   |  |           |  |        |  |  |     |           +- Identifier
   |  |           |  |        |  |  |     |              +- T-Identifier
   |  |           |  |        |  |  |     +- DefaultArgumentClause
   |  |           |  |        |  |  |        +- T-eq
   |  |           |  |        |  |  |        +- Expression
   |  |           |  |        |  |  |           +- PrefixExpression
   |  |           |  |        |  |  |              +- PostfixExpression
   |  |           |  |        |  |  |                 +- PrimaryExpression
   |  |           |  |        |  |  |                    +- Keyword
   |  |           |  |        |  |  |                       +- T-Any
   |  |           |  |        |  |  +- T-rparen
   |  |           |  |        |  +- FunctionResult
   |  |           |  |        |     +- T-rarrow
   |  |           |  |        |     +- SType
   |  |           |  |        |        +- SType
   |  |           |  |        |        |  +- TypeIdentifier
   |  |           |  |        |        |     +- TypeName
   |  |           |  |        |        |        +- Identifier
   |  |           |  |        |        |           +- T-Identifier
   |  |           |  |        |        +- T-question
   |  |           |  |        +- FunctionBody
   |  |           |  |           +- CodeBlock
   |  |           |  |              +- T-lbrace
   |  |           |  |              +- Statements
   |  |           |  |              |  +- Statement
   |  |           |  |              |     +- BranchStatement
   |  |           |  |              |        +- SwitchStatement
   |  |           |  |              |           +- T-switch
   |  |           |  |              |           +- Expression
   |  |           |  |              |           |  +- PrefixExpression
   |  |           |  |              |           |     +- PostfixExpression
   |  |           |  |              |           |        +- PrimaryExpression
   |  |           |  |              |           |           +- Identifier
   |  |           |  |              |           |              +- T-Identifier
   |  |           |  |              |           +- T-lbrace
   |  |           |  |              |           +- SwitchCases
   |  |           |  |              |           |  +- SwitchCase
   |  |           |  |              |           |  |  +- CaseLabel
   |  |           |  |              |           |  |  |  +- T-case
   |  |           |  |              |           |  |  |  +- CaseItemList
   |  |           |  |              |           |  |  |  |  +- CaseItem
   |  |           |  |              |           |  |  |  |     +- Pattern
   |  |           |  |              |           |  |  |  |        +- ExpressionPattern
   |  |           |  |              |           |  |  |  |           +- Expression
   |  |           |  |              |           |  |  |  |              +- PrefixExpression
   |  |           |  |              |           |  |  |  |                 +- PostfixExpression
   |  |           |  |              |           |  |  |  |                    +- PrimaryExpression
   |  |           |  |              |           |  |  |  |                       +- Keyword
   |  |           |  |              |           |  |  |  |                          +- T-Any
   |  |           |  |              |           |  |  |  +- T-colon
   |  |           |  |              |           |  |  +- Statements
   |  |           |  |              |           |  |     +- Statement
   |  |           |  |              |           |  |     |  +- Declaration
   |  |           |  |              |           |  |     |     +- VariableDeclaration
   |  |           |  |              |           |  |     |        +- VariableDeclarationHead
   |  |           |  |              |           |  |     |        |  +- T-var
   |  |           |  |              |           |  |     |        +- PatternInitializerList
   |  |           |  |              |           |  |     |           +- PatternInitializer
   |  |           |  |              |           |  |     |              +- Pattern
   |  |           |  |              |           |  |     |              |  +- IdentifierPattern
   |  |           |  |              |           |  |     |              |     +- Identifier
   |  |           |  |              |           |  |     |              |        +- T-Identifier
   |  |           |  |              |           |  |     |              +- Initializer
   |  |           |  |              |           |  |     |                 +- T-eq
   |  |           |  |              |           |  |     |                 +- Expression
   |  |           |  |              |           |  |     |                    +- PrefixExpression
   |  |           |  |              |           |  |     |                       +- PostfixExpression
   |  |           |  |              |           |  |     |                          +- PrimaryExpression
   |  |           |  |              |           |  |     |                             +- Identifier
   |  |           |  |              |           |  |     |                                +- T-Identifier
   |  |           |  |              |           |  |     +- Statement
   |  |           |  |              |           |  |     |  +- LoopStatement
   |  |           |  |              |           |  |     |     +- WhileStatement
   |  |           |  |              |           |  |     |        +- T-while
   |  |           |  |              |           |  |     |        +- ConditionList
   |  |           |  |              |           |  |     |        |  +- Condition
   |  |           |  |              |           |  |     |        |     +- Expression
   |  |           |  |              |           |  |     |        |        +- PrefixExpression
   |  |           |  |              |           |  |     |        |           +- PostfixExpression
   |  |           |  |              |           |  |     |        |              +- PrimaryExpression
   |  |           |  |              |           |  |     |        |                 +- Keyword
   |  |           |  |              |           |  |     |        |                    +- T-BooleanLiteral
   |  |           |  |              |           |  |     |        +- CodeBlock
   |  |           |  |              |           |  |     |           +- T-lbrace
   |  |           |  |              |           |  |     |           +- Statements
   |  |           |  |              |           |  |     |           |  +- Statement
   |  |           |  |              |           |  |     |           |  |  +- Declaration
   |  |           |  |              |           |  |     |           |  |     +- ConstantDeclaration
   |  |           |  |              |           |  |     |           |  |        +- T-let
   |  |           |  |              |           |  |     |           |  |        +- PatternInitializerList
   |  |           |  |              |           |  |     |           |  |           +- PatternInitializer
   |  |           |  |              |           |  |     |           |  |              +- Pattern
   |  |           |  |              |           |  |     |           |  |              |  +- IdentifierPattern
   |  |           |  |              |           |  |     |           |  |              |     +- Identifier
   |  |           |  |              |           |  |     |           |  |              |        +- T-Identifier
   |  |           |  |              |           |  |     |           |  |              +- Initializer
   |  |           |  |              |           |  |     |           |  |                 +- T-eq
   |  |           |  |              |           |  |     |           |  |                 +- Expression
   |  |           |  |              |           |  |     |           |  |                    +- PrefixExpression
   |  |           |  |              |           |  |     |           |  |                       +- PostfixExpression
   |  |           |  |              |           |  |     |           |  |                          +- PostfixExpression
   |  |           |  |              |           |  |     |           |  |                          |  +- PostfixExpression
   |  |           |  |              |           |  |     |           |  |                          |  |  +- PrimaryExpression
   |  |           |  |              |           |  |     |           |  |                          |  |     +- Identifier
   |  |           |  |              |           |  |     |           |  |                          |  |        +- T-Identifier
   |  |           |  |              |           |  |     |           |  |                          |  +- T-dot
   |  |           |  |              |           |  |     |           |  |                          |  +- Identifier
   |  |           |  |              |           |  |     |           |  |                          |     +- T-Identifier
   |  |           |  |              |           |  |     |           |  |                          +- FunctionCallArgumentClause
   |  |           |  |              |           |  |     |           |  |                             +- T-lparen
   |  |           |  |              |           |  |     |           |  |                             +- FunctionCallArgumentList
   |  |           |  |              |           |  |     |           |  |                             |  +- FunctionCallArgument
   |  |           |  |              |           |  |     |           |  |                             |  |  +- Expression
   |  |           |  |              |           |  |     |           |  |                             |  |     +- PrefixExpression
   |  |           |  |              |           |  |     |           |  |                             |  |        +- PostfixExpression
   |  |           |  |              |           |  |     |           |  |                             |  |           +- PrimaryExpression
   |  |           |  |              |           |  |     |           |  |                             |  |              +- Identifier
   |  |           |  |              |           |  |     |           |  |                             |  |                 +- T-Identifier
   |  |           |  |              |           |  |     |           |  |                             |  +- T-comma
   |  |           |  |              |           |  |     |           |  |                             |  +- FunctionCallArgument
   |  |           |  |              |           |  |     |           |  |                             |     +- FunctionCallIdentifier
   |  |           |  |              |           |  |     |           |  |                             |     |  +- Identifier
   |  |           |  |              |           |  |     |           |  |                             |     |     +- T-Identifier
   |  |           |  |              |           |  |     |           |  |                             |     +- T-colon
   |  |           |  |              |           |  |     |           |  |                             |     +- Expression
   |  |           |  |              |           |  |     |           |  |                             |        +- PrefixExpression
   |  |           |  |              |           |  |     |           |  |                             |           +- PostfixExpression
   |  |           |  |              |           |  |     |           |  |                             |              +- PrimaryExpression
   |  |           |  |              |           |  |     |           |  |                             |                 +- ImplicitMemberExpression
   |  |           |  |              |           |  |     |           |  |                             |                    +- T-dot
   |  |           |  |              |           |  |     |           |  |                             |                    +- Identifier
   |  |           |  |              |           |  |     |           |  |                             |                       +- T-Identifier
   |  |           |  |              |           |  |     |           |  |                             +- T-rparen
   |  |           |  |              |           |  |     |           |  +- Statement
   |  |           |  |              |           |  |     |           |  |  +- BranchStatement
   |  |           |  |              |           |  |     |           |  |     +- IfStatement
   |  |           |  |              |           |  |     |           |  |        +- T-if
   |  |           |  |              |           |  |     |           |  |        +- ConditionList
   |  |           |  |              |           |  |     |           |  |        |  +- Condition
   |  |           |  |              |           |  |     |           |  |        |     +- OptionalBindingCondition
   |  |           |  |              |           |  |     |           |  |        |        +- T-let
   |  |           |  |              |           |  |     |           |  |        |        +- Pattern
   |  |           |  |              |           |  |     |           |  |        |        |  +- IdentifierPattern
   |  |           |  |              |           |  |     |           |  |        |        |     +- Identifier
   |  |           |  |              |           |  |     |           |  |        |        |        +- T-Identifier
   |  |           |  |              |           |  |     |           |  |        |        +- Initializer
   |  |           |  |              |           |  |     |           |  |        |           +- T-eq
   |  |           |  |              |           |  |     |           |  |        |           +- Expression
   |  |           |  |              |           |  |     |           |  |        |              +- PrefixExpression
   |  |           |  |              |           |  |     |           |  |        |                 +- PostfixExpression
   |  |           |  |              |           |  |     |           |  |        |                    +- PostfixExpression
   |  |           |  |              |           |  |     |           |  |        |                    |  +- PrimaryExpression
   |  |           |  |              |           |  |     |           |  |        |                    |     +- Identifier
   |  |           |  |              |           |  |     |           |  |        |                    |        +- T-Identifier
   |  |           |  |              |           |  |     |           |  |        |                    +- T-dot
   |  |           |  |              |           |  |     |           |  |        |                    +- Identifier
   |  |           |  |              |           |  |     |           |  |        |                       +- T-Identifier
   |  |           |  |              |           |  |     |           |  |        +- CodeBlock
   |  |           |  |              |           |  |     |           |  |           +- T-lbrace
   |  |           |  |              |           |  |     |           |  |           +- Statements
   |  |           |  |              |           |  |     |           |  |           |  +- Statement
   |  |           |  |              |           |  |     |           |  |           |     +- ControlTransferStatement
   |  |           |  |              |           |  |     |           |  |           |        +- ReturnStatement
   |  |           |  |              |           |  |     |           |  |           |           +- T-return
   |  |           |  |              |           |  |     |           |  |           |           +- Expression
   |  |           |  |              |           |  |     |           |  |           |              +- PrefixExpression
   |  |           |  |              |           |  |     |           |  |           |                 +- PostfixExpression
   |  |           |  |              |           |  |     |           |  |           |                    +- PostfixExpression
   |  |           |  |              |           |  |     |           |  |           |                    |  +- PostfixExpression
   |  |           |  |              |           |  |     |           |  |           |                    |  |  +- PostfixExpression
   |  |           |  |              |           |  |     |           |  |           |                    |  |  |  +- PrimaryExpression
   |  |           |  |              |           |  |     |           |  |           |                    |  |  |     +- Identifier
   |  |           |  |              |           |  |     |           |  |           |                    |  |  |        +- T-Identifier
   |  |           |  |              |           |  |     |           |  |           |                    |  |  +- T-dot
   |  |           |  |              |           |  |     |           |  |           |                    |  |  +- Identifier
   |  |           |  |              |           |  |     |           |  |           |                    |  |     +- T-Identifier
   |  |           |  |              |           |  |     |           |  |           |                    |  +- T-lbracket
   |  |           |  |              |           |  |     |           |  |           |                    |  +- TupleElementList
   |  |           |  |              |           |  |     |           |  |           |                    |  |  +- TupleElement
   |  |           |  |              |           |  |     |           |  |           |                    |  |     +- Expression
   |  |           |  |              |           |  |     |           |  |           |                    |  |        +- PrefixExpression
   |  |           |  |              |           |  |     |           |  |           |                    |  |           +- PostfixExpression
   |  |           |  |              |           |  |     |           |  |           |                    |  |              +- PrimaryExpression
   |  |           |  |              |           |  |     |           |  |           |                    |  |                 +- Identifier
   |  |           |  |              |           |  |     |           |  |           |                    |  |                    +- T-Identifier
   |  |           |  |              |           |  |     |           |  |           |                    |  +- T-rbracket
   |  |           |  |              |           |  |     |           |  |           |                    +- T-dot
   |  |           |  |              |           |  |     |           |  |           |                    +- T-DecimalLiteral
   |  |           |  |              |           |  |     |           |  |           +- T-rbrace
   |  |           |  |              |           |  |     |           |  +- Statement
   |  |           |  |              |           |  |     |           |  |  +- BranchStatement
   |  |           |  |              |           |  |     |           |  |     +- IfStatement
   |  |           |  |              |           |  |     |           |  |        +- T-if
   |  |           |  |              |           |  |     |           |  |        +- ConditionList
   |  |           |  |              |           |  |     |           |  |        |  +- Condition
   |  |           |  |              |           |  |     |           |  |        |     +- Expression
   |  |           |  |              |           |  |     |           |  |        |        +- PrefixExpression
   |  |           |  |              |           |  |     |           |  |        |           +- PostfixExpression
   |  |           |  |              |           |  |     |           |  |        |              +- PostfixExpression
   |  |           |  |              |           |  |     |           |  |        |              |  +- PrimaryExpression
   |  |           |  |              |           |  |     |           |  |        |              |     +- Identifier
   |  |           |  |              |           |  |     |           |  |        |              |        +- T-Identifier
   |  |           |  |              |           |  |     |           |  |        |              +- T-dot
   |  |           |  |              |           |  |     |           |  |        |              +- Identifier
   |  |           |  |              |           |  |     |           |  |        |                 +- T-Identifier
   |  |           |  |              |           |  |     |           |  |        +- CodeBlock
   |  |           |  |              |           |  |     |           |  |           +- T-lbrace
   |  |           |  |              |           |  |     |           |  |           +- Statements
   |  |           |  |              |           |  |     |           |  |           |  +- Statement
   |  |           |  |              |           |  |     |           |  |           |     +- ControlTransferStatement
   |  |           |  |              |           |  |     |           |  |           |        +- BreakStatement
   |  |           |  |              |           |  |     |           |  |           |           +- T-break
   |  |           |  |              |           |  |     |           |  |           +- T-rbrace
   |  |           |  |              |           |  |     |           |  +- Statement
   |  |           |  |              |           |  |     |           |  |  +- Expression
   |  |           |  |              |           |  |     |           |  |     +- PrefixExpression
   |  |           |  |              |           |  |     |           |  |        +- PostfixExpression
   |  |           |  |              |           |  |     |           |  |           +- PostfixExpression
   |  |           |  |              |           |  |     |           |  |           |  +- PrimaryExpression
   |  |           |  |              |           |  |     |           |  |           |     +- Identifier
   |  |           |  |              |           |  |     |           |  |           |        +- T-Identifier
   |  |           |  |              |           |  |     |           |  |           +- PostfixOperator
   |  |           |  |              |           |  |     |           |  |              +- Operator
   |  |           |  |              |           |  |     |           |  |                 +- OperatorHead
   |  |           |  |              |           |  |     |           |  |                    +- T-eq
   |  |           |  |              |           |  |     |           |  +- Statement
   |  |           |  |              |           |  |     |           |     +- Expression
   |  |           |  |              |           |  |     |           |        +- PrefixExpression
   |  |           |  |              |           |  |     |           |           +- PostfixExpression
   |  |           |  |              |           |  |     |           |              +- PostfixExpression
   |  |           |  |              |           |  |     |           |              |  +- PostfixExpression
   |  |           |  |              |           |  |     |           |              |  |  +- PrimaryExpression
   |  |           |  |              |           |  |     |           |              |  |     +- Identifier
   |  |           |  |              |           |  |     |           |              |  |        +- T-Identifier
   |  |           |  |              |           |  |     |           |              |  +- T-dot
   |  |           |  |              |           |  |     |           |              |  +- Identifier
   |  |           |  |              |           |  |     |           |              |     +- T-Identifier
   |  |           |  |              |           |  |     |           |              +- T-lbracket
   |  |           |  |              |           |  |     |           |              +- TupleElementList
   |  |           |  |              |           |  |     |           |              |  +- TupleElement
   |  |           |  |              |           |  |     |           |              |     +- Expression
   |  |           |  |              |           |  |     |           |              |        +- PrefixExpression
   |  |           |  |              |           |  |     |           |              |           +- PostfixExpression
   |  |           |  |              |           |  |     |           |              |              +- PostfixExpression
   |  |           |  |              |           |  |     |           |              |              |  +- PrimaryExpression
   |  |           |  |              |           |  |     |           |              |              |     +- Identifier
   |  |           |  |              |           |  |     |           |              |              |        +- T-Identifier
   |  |           |  |              |           |  |     |           |              |              +- T-dot
   |  |           |  |              |           |  |     |           |              |              +- Identifier
   |  |           |  |              |           |  |     |           |              |                 +- T-Identifier
   |  |           |  |              |           |  |     |           |              +- T-rbracket
   |  |           |  |              |           |  |     |           +- T-rbrace
   |  |           |  |              |           |  |     +- Statement
   |  |           |  |              |           |  |        +- ControlTransferStatement
   |  |           |  |              |           |  |           +- ReturnStatement
   |  |           |  |              |           |  |              +- T-return
   |  |           |  |              |           |  |              +- Expression
   |  |           |  |              |           |  |                 +- PrefixExpression
   |  |           |  |              |           |  |                    +- PostfixExpression
   |  |           |  |              |           |  |                       +- PrimaryExpression
   |  |           |  |              |           |  |                          +- Keyword
   |  |           |  |              |           |  |                             +- T-NilLiteral
   |  |           |  |              |           |  +- SwitchCase
   |  |           |  |              |           |     +- DefaultLabel
   |  |           |  |              |           |     |  +- T-default
   |  |           |  |              |           |     |  +- T-colon
   |  |           |  |              |           |     +- Statements
   |  |           |  |              |           |        +- Statement
   |  |           |  |              |           |        |  +- Declaration
   |  |           |  |              |           |        |     +- VariableDeclaration
   |  |           |  |              |           |        |        +- VariableDeclarationHead
   |  |           |  |              |           |        |        |  +- T-var
   |  |           |  |              |           |        |        +- PatternInitializerList
   |  |           |  |              |           |        |           +- PatternInitializer
   |  |           |  |              |           |        |              +- Pattern
   |  |           |  |              |           |        |              |  +- IdentifierPattern
   |  |           |  |              |           |        |              |     +- Identifier
   |  |           |  |              |           |        |              |        +- T-Identifier
   |  |           |  |              |           |        |              +- Initializer
   |  |           |  |              |           |        |                 +- T-eq
   |  |           |  |              |           |        |                 +- Expression
   |  |           |  |              |           |        |                    +- PrefixExpression
   |  |           |  |              |           |        |                       +- PostfixExpression
   |  |           |  |              |           |        |                          +- PrimaryExpression
   |  |           |  |              |           |        |                             +- Identifier
   |  |           |  |              |           |        |                                +- T-Identifier
   |  |           |  |              |           |        +- Statement
   |  |           |  |              |           |        |  +- Declaration
   |  |           |  |              |           |        |     +- VariableDeclaration
   |  |           |  |              |           |        |        +- VariableDeclarationHead
   |  |           |  |              |           |        |        |  +- T-var
   |  |           |  |              |           |        |        +- PatternInitializerList
   |  |           |  |              |           |        |           +- PatternInitializer
   |  |           |  |              |           |        |              +- Pattern
   |  |           |  |              |           |        |              |  +- IdentifierPattern
   |  |           |  |              |           |        |              |  |  +- Identifier
   |  |           |  |              |           |        |              |  |     +- T-Identifier
   |  |           |  |              |           |        |              |  +- TypeAnnotation
   |  |           |  |              |           |        |              |     +- T-colon
   |  |           |  |              |           |        |              |     +- SType
   |  |           |  |              |           |        |              |        +- SType
   |  |           |  |              |           |        |              |        |  +- TypeIdentifier
   |  |           |  |              |           |        |              |        |     +- TypeName
   |  |           |  |              |           |        |              |        |        +- Identifier
   |  |           |  |              |           |        |              |        |           +- T-Identifier
   |  |           |  |              |           |        |              |        +- T-question
   |  |           |  |              |           |        |              +- Initializer
   |  |           |  |              |           |        |                 +- T-eq
   |  |           |  |              |           |        |                 +- Expression
   |  |           |  |              |           |        |                    +- PrefixExpression
   |  |           |  |              |           |        |                       +- PostfixExpression
   |  |           |  |              |           |        |                          +- PrimaryExpression
   |  |           |  |              |           |        |                             +- Keyword
   |  |           |  |              |           |        |                                +- T-NilLiteral
   |  |           |  |              |           |        +- Statement
   |  |           |  |              |           |        |  +- LoopStatement
   |  |           |  |              |           |        |     +- WhileStatement
   |  |           |  |              |           |        |        +- T-while
   |  |           |  |              |           |        |        +- ConditionList
   |  |           |  |              |           |        |        |  +- Condition
   |  |           |  |              |           |        |        |     +- Expression
   |  |           |  |              |           |        |        |        +- PrefixExpression
   |  |           |  |              |           |        |        |           +- PostfixExpression
   |  |           |  |              |           |        |        |              +- PrimaryExpression
   |  |           |  |              |           |        |        |                 +- Keyword
   |  |           |  |              |           |        |        |                    +- T-BooleanLiteral
   |  |           |  |              |           |        |        +- CodeBlock
   |  |           |  |              |           |        |           +- T-lbrace
   |  |           |  |              |           |        |           +- Statements
   |  |           |  |              |           |        |           |  +- Statement
   |  |           |  |              |           |        |           |  |  +- Declaration
   |  |           |  |              |           |        |           |  |     +- ConstantDeclaration
   |  |           |  |              |           |        |           |  |        +- T-let
   |  |           |  |              |           |        |           |  |        +- PatternInitializerList
   |  |           |  |              |           |        |           |  |           +- PatternInitializer
   |  |           |  |              |           |        |           |  |              +- Pattern
   |  |           |  |              |           |        |           |  |              |  +- IdentifierPattern
   |  |           |  |              |           |        |           |  |              |     +- Identifier
   |  |           |  |              |           |        |           |  |              |        +- T-Identifier
   |  |           |  |              |           |        |           |  |              +- Initializer
   |  |           |  |              |           |        |           |  |                 +- T-eq
   |  |           |  |              |           |        |           |  |                 +- Expression
   |  |           |  |              |           |        |           |  |                    +- PrefixExpression
   |  |           |  |              |           |        |           |  |                       +- PostfixExpression
   |  |           |  |              |           |        |           |  |                          +- PostfixExpression
   |  |           |  |              |           |        |           |  |                          |  +- PostfixExpression
   |  |           |  |              |           |        |           |  |                          |  |  +- PrimaryExpression
   |  |           |  |              |           |        |           |  |                          |  |     +- Identifier
   |  |           |  |              |           |        |           |  |                          |  |        +- T-Identifier
   |  |           |  |              |           |        |           |  |                          |  +- T-dot
   |  |           |  |              |           |        |           |  |                          |  +- Identifier
   |  |           |  |              |           |        |           |  |                          |     +- T-Identifier
   |  |           |  |              |           |        |           |  |                          +- FunctionCallArgumentClause
   |  |           |  |              |           |        |           |  |                             +- T-lparen
   |  |           |  |              |           |        |           |  |                             +- FunctionCallArgumentList
   |  |           |  |              |           |        |           |  |                             |  +- FunctionCallArgument
   |  |           |  |              |           |        |           |  |                             |  |  +- Expression
   |  |           |  |              |           |        |           |  |                             |  |     +- PrefixExpression
   |  |           |  |              |           |        |           |  |                             |  |        +- PostfixExpression
   |  |           |  |              |           |        |           |  |                             |  |           +- PrimaryExpression
   |  |           |  |              |           |        |           |  |                             |  |              +- Identifier
   |  |           |  |              |           |        |           |  |                             |  |                 +- T-Identifier
   |  |           |  |              |           |        |           |  |                             |  +- T-comma
   |  |           |  |              |           |        |           |  |                             |  +- FunctionCallArgument
   |  |           |  |              |           |        |           |  |                             |     +- FunctionCallIdentifier
   |  |           |  |              |           |        |           |  |                             |     |  +- Identifier
   |  |           |  |              |           |        |           |  |                             |     |     +- T-Identifier
   |  |           |  |              |           |        |           |  |                             |     +- T-colon
   |  |           |  |              |           |        |           |  |                             |     +- Expression
   |  |           |  |              |           |        |           |  |                             |        +- PrefixExpression
   |  |           |  |              |           |        |           |  |                             |           +- PostfixExpression
   |  |           |  |              |           |        |           |  |                             |              +- PrimaryExpression
   |  |           |  |              |           |        |           |  |                             |                 +- Identifier
   |  |           |  |              |           |        |           |  |                             |                    +- T-Identifier
   |  |           |  |              |           |        |           |  |                             +- T-rparen
   |  |           |  |              |           |        |           |  +- Statement
   |  |           |  |              |           |        |           |  |  +- BranchStatement
   |  |           |  |              |           |        |           |  |     +- IfStatement
   |  |           |  |              |           |        |           |  |        +- T-if
   |  |           |  |              |           |        |           |  |        +- ConditionList
   |  |           |  |              |           |        |           |  |        |  +- Condition
   |  |           |  |              |           |        |           |  |        |     +- OptionalBindingCondition
   |  |           |  |              |           |        |           |  |        |        +- T-let
   |  |           |  |              |           |        |           |  |        |        +- Pattern
   |  |           |  |              |           |        |           |  |        |        |  +- IdentifierPattern
   |  |           |  |              |           |        |           |  |        |        |     +- Identifier
   |  |           |  |              |           |        |           |  |        |        |        +- T-Identifier
   |  |           |  |              |           |        |           |  |        |        +- Initializer
   |  |           |  |              |           |        |           |  |        |           +- T-eq
   |  |           |  |              |           |        |           |  |        |           +- Expression
   |  |           |  |              |           |        |           |  |        |              +- PrefixExpression
   |  |           |  |              |           |        |           |  |        |                 +- PostfixExpression
   |  |           |  |              |           |        |           |  |        |                    +- PostfixExpression
   |  |           |  |              |           |        |           |  |        |                    |  +- PrimaryExpression
   |  |           |  |              |           |        |           |  |        |                    |     +- Identifier
   |  |           |  |              |           |        |           |  |        |                    |        +- T-Identifier
   |  |           |  |              |           |        |           |  |        |                    +- T-dot
   |  |           |  |              |           |        |           |  |        |                    +- Identifier
   |  |           |  |              |           |        |           |  |        |                       +- T-Identifier
   |  |           |  |              |           |        |           |  |        +- CodeBlock
   |  |           |  |              |           |        |           |  |           +- T-lbrace
   |  |           |  |              |           |        |           |  |           +- Statements
   |  |           |  |              |           |        |           |  |           |  +- Statement
   |  |           |  |              |           |        |           |  |           |  |  +- Expression
   |  |           |  |              |           |        |           |  |           |  |     +- PrefixExpression
   |  |           |  |              |           |        |           |  |           |  |        +- PostfixExpression
   |  |           |  |              |           |        |           |  |           |  |           +- PostfixExpression
   |  |           |  |              |           |        |           |  |           |  |           |  +- PrimaryExpression
   |  |           |  |              |           |        |           |  |           |  |           |     +- Identifier
   |  |           |  |              |           |        |           |  |           |  |           |        +- T-Identifier
   |  |           |  |              |           |        |           |  |           |  |           +- PostfixOperator
   |  |           |  |              |           |        |           |  |           |  |              +- Operator
   |  |           |  |              |           |        |           |  |           |  |                 +- OperatorHead
   |  |           |  |              |           |        |           |  |           |  |                    +- T-eq
   |  |           |  |              |           |        |           |  |           |  +- Statement
   |  |           |  |              |           |        |           |  |           |     +- Expression
   |  |           |  |              |           |        |           |  |           |        +- PrefixExpression
   |  |           |  |              |           |        |           |  |           |           +- PostfixExpression
   |  |           |  |              |           |        |           |  |           |              +- PostfixExpression
   |  |           |  |              |           |        |           |  |           |              |  +- PostfixExpression
   |  |           |  |              |           |        |           |  |           |              |  |  +- PostfixExpression
   |  |           |  |              |           |        |           |  |           |              |  |  |  +- PrimaryExpression
   |  |           |  |              |           |        |           |  |           |              |  |  |     +- Identifier
   |  |           |  |              |           |        |           |  |           |              |  |  |        +- T-Identifier
   |  |           |  |              |           |        |           |  |           |              |  |  +- T-dot
   |  |           |  |              |           |        |           |  |           |              |  |  +- Identifier
   |  |           |  |              |           |        |           |  |           |              |  |     +- T-Identifier
   |  |           |  |              |           |        |           |  |           |              |  +- T-lbracket
   |  |           |  |              |           |        |           |  |           |              |  +- TupleElementList
   |  |           |  |              |           |        |           |  |           |              |  |  +- TupleElement
   |  |           |  |              |           |        |           |  |           |              |  |     +- Expression
   |  |           |  |              |           |        |           |  |           |              |  |        +- PrefixExpression
   |  |           |  |              |           |        |           |  |           |              |  |           +- PostfixExpression
   |  |           |  |              |           |        |           |  |           |              |  |              +- PrimaryExpression
   |  |           |  |              |           |        |           |  |           |              |  |                 +- Identifier
   |  |           |  |              |           |        |           |  |           |              |  |                    +- T-Identifier
   |  |           |  |              |           |        |           |  |           |              |  +- T-rbracket
   |  |           |  |              |           |        |           |  |           |              +- T-dot
   |  |           |  |              |           |        |           |  |           |              +- T-DecimalLiteral
   |  |           |  |              |           |        |           |  |           +- T-rbrace
   |  |           |  |              |           |        |           |  +- Statement
   |  |           |  |              |           |        |           |  |  +- BranchStatement
   |  |           |  |              |           |        |           |  |     +- IfStatement
   |  |           |  |              |           |        |           |  |        +- T-if
   |  |           |  |              |           |        |           |  |        +- ConditionList
   |  |           |  |              |           |        |           |  |        |  +- Condition
   |  |           |  |              |           |        |           |  |        |     +- Expression
   |  |           |  |              |           |        |           |  |        |        +- PrefixExpression
   |  |           |  |              |           |        |           |  |        |           +- PostfixExpression
   |  |           |  |              |           |        |           |  |        |              +- PostfixExpression
   |  |           |  |              |           |        |           |  |        |              |  +- PrimaryExpression
   |  |           |  |              |           |        |           |  |        |              |     +- Identifier
   |  |           |  |              |           |        |           |  |        |              |        +- T-Identifier
   |  |           |  |              |           |        |           |  |        |              +- T-dot
   |  |           |  |              |           |        |           |  |        |              +- Identifier
   |  |           |  |              |           |        |           |  |        |                 +- T-Identifier
   |  |           |  |              |           |        |           |  |        +- CodeBlock
   |  |           |  |              |           |        |           |  |           +- T-lbrace
   |  |           |  |              |           |        |           |  |           +- Statements
   |  |           |  |              |           |        |           |  |           |  +- Statement
   |  |           |  |              |           |        |           |  |           |     +- ControlTransferStatement
   |  |           |  |              |           |        |           |  |           |        +- BreakStatement
   |  |           |  |              |           |        |           |  |           |           +- T-break
   |  |           |  |              |           |        |           |  |           +- T-rbrace
   |  |           |  |              |           |        |           |  +- Statement
   |  |           |  |              |           |        |           |  |  +- Expression
   |  |           |  |              |           |        |           |  |     +- PrefixExpression
   |  |           |  |              |           |        |           |  |        +- PostfixExpression
   |  |           |  |              |           |        |           |  |           +- PostfixExpression
   |  |           |  |              |           |        |           |  |           |  +- PrimaryExpression
   |  |           |  |              |           |        |           |  |           |     +- Identifier
   |  |           |  |              |           |        |           |  |           |        +- T-Identifier
   |  |           |  |              |           |        |           |  |           +- PostfixOperator
   |  |           |  |              |           |        |           |  |              +- Operator
   |  |           |  |              |           |        |           |  |                 +- OperatorHead
   |  |           |  |              |           |        |           |  |                    +- T-eq
   |  |           |  |              |           |        |           |  +- Statement
   |  |           |  |              |           |        |           |     +- Expression
   |  |           |  |              |           |        |           |        +- PrefixExpression
   |  |           |  |              |           |        |           |           +- PostfixExpression
   |  |           |  |              |           |        |           |              +- PostfixExpression
   |  |           |  |              |           |        |           |              |  +- PostfixExpression
   |  |           |  |              |           |        |           |              |  |  +- PrimaryExpression
   |  |           |  |              |           |        |           |              |  |     +- Identifier
   |  |           |  |              |           |        |           |              |  |        +- T-Identifier
   |  |           |  |              |           |        |           |              |  +- T-dot
   |  |           |  |              |           |        |           |              |  +- Identifier
   |  |           |  |              |           |        |           |              |     +- T-Identifier
   |  |           |  |              |           |        |           |              +- T-lbracket
   |  |           |  |              |           |        |           |              +- TupleElementList
   |  |           |  |              |           |        |           |              |  +- TupleElement
   |  |           |  |              |           |        |           |              |     +- Expression
   |  |           |  |              |           |        |           |              |        +- PrefixExpression
   |  |           |  |              |           |        |           |              |           +- PostfixExpression
   |  |           |  |              |           |        |           |              |              +- PostfixExpression
   |  |           |  |              |           |        |           |              |              |  +- PrimaryExpression
   |  |           |  |              |           |        |           |              |              |     +- Identifier
   |  |           |  |              |           |        |           |              |              |        +- T-Identifier
   |  |           |  |              |           |        |           |              |              +- T-dot
   |  |           |  |              |           |        |           |              |              +- Identifier
   |  |           |  |              |           |        |           |              |                 +- T-Identifier
   |  |           |  |              |           |        |           |              +- T-rbracket
   |  |           |  |              |           |        |           +- T-rbrace
   |  |           |  |              |           |        +- Statement
   |  |           |  |              |           |           +- ControlTransferStatement
   |  |           |  |              |           |              +- ReturnStatement
   |  |           |  |              |           |                 +- T-return
   |  |           |  |              |           |                 +- Expression
   |  |           |  |              |           |                    +- PrefixExpression
   |  |           |  |              |           |                       +- PostfixExpression
   |  |           |  |              |           |                          +- PrimaryExpression
   |  |           |  |              |           |                             +- Identifier
   |  |           |  |              |           |                                +- T-Identifier
   |  |           |  |              |           +- T-rbrace
   |  |           |  |              +- T-rbrace
   |  |           |  +- ExtensionMember
   |  |           |  |  +- Declaration
   |  |           |  |     +- FunctionDeclaration
   |  |           |  |        +- FunctionHead
   |  |           |  |        |  +- Attributes
   |  |           |  |        |  |  +- Attribute
   |  |           |  |        |  |     +- T-at-symbol
   |  |           |  |        |  |     +- AttributeName
   |  |           |  |        |  |        +- Identifier
   |  |           |  |        |  |           +- T-Identifier
   |  |           |  |        |  +- DeclarationModifiers
   |  |           |  |        |  |  +- DeclarationModifier
   |  |           |  |        |  |     +- AccessLevelModifier
   |  |           |  |        |  |        +- T-public
   |  |           |  |        |  +- T-func
   |  |           |  |        +- FunctionName
   |  |           |  |        |  +- Identifier
   |  |           |  |        |     +- T-Identifier
   |  |           |  |        +- FunctionSignature
   |  |           |  |        |  +- ParameterClause
   |  |           |  |        |  |  +- T-lparen
   |  |           |  |        |  |  +- ParameterList
   |  |           |  |        |  |  |  +- Parameter
   |  |           |  |        |  |  |  |  +- LocalParameterName
   |  |           |  |        |  |  |  |  |  +- Identifier
   |  |           |  |        |  |  |  |  |     +- T-Identifier
   |  |           |  |        |  |  |  |  +- TypeAnnotation
   |  |           |  |        |  |  |  |     +- T-colon
   |  |           |  |        |  |  |  |     +- SType
   |  |           |  |        |  |  |  |        +- TypeIdentifier
   |  |           |  |        |  |  |  |           +- TypeName
   |  |           |  |        |  |  |  |              +- Identifier
   |  |           |  |        |  |  |  |                 +- T-Identifier
   |  |           |  |        |  |  |  +- T-comma
   |  |           |  |        |  |  |  +- Parameter
   |  |           |  |        |  |  |     +- ExternalParameterName
   |  |           |  |        |  |  |     |  +- Identifier
   |  |           |  |        |  |  |     |     +- T-Identifier
   |  |           |  |        |  |  |     +- LocalParameterName
   |  |           |  |        |  |  |     |  +- Identifier
   |  |           |  |        |  |  |     |     +- T-Identifier
   |  |           |  |        |  |  |     +- TypeAnnotation
   |  |           |  |        |  |  |     |  +- T-colon
   |  |           |  |        |  |  |     |  +- SType
   |  |           |  |        |  |  |     |     +- TypeIdentifier
   |  |           |  |        |  |  |     |        +- TypeName
   |  |           |  |        |  |  |     |           +- Identifier
   |  |           |  |        |  |  |     |              +- T-Identifier
   |  |           |  |        |  |  |     +- DefaultArgumentClause
   |  |           |  |        |  |  |        +- T-eq
   |  |           |  |        |  |  |        +- Expression
   |  |           |  |        |  |  |           +- PrefixExpression
   |  |           |  |        |  |  |              +- PostfixExpression
   |  |           |  |        |  |  |                 +- PrimaryExpression
   |  |           |  |        |  |  |                    +- Keyword
   |  |           |  |        |  |  |                       +- T-Any
   |  |           |  |        |  |  +- T-rparen
   |  |           |  |        |  +- FunctionResult
   |  |           |  |        |     +- T-rarrow
   |  |           |  |        |     +- SType
   |  |           |  |        |        +- SType
   |  |           |  |        |        |  +- TypeIdentifier
   |  |           |  |        |        |     +- TypeName
   |  |           |  |        |        |        +- Identifier
   |  |           |  |        |        |           +- T-Identifier
   |  |           |  |        |        +- T-question
   |  |           |  |        +- FunctionBody
   |  |           |  |           +- CodeBlock
   |  |           |  |              +- T-lbrace
   |  |           |  |              +- Statements
   |  |           |  |              |  +- Statement
   |  |           |  |              |  |  +- Declaration
   |  |           |  |              |  |     +- ConstantDeclaration
   |  |           |  |              |  |        +- T-let
   |  |           |  |              |  |        +- PatternInitializerList
   |  |           |  |              |  |           +- PatternInitializer
   |  |           |  |              |  |              +- Pattern
   |  |           |  |              |  |              |  +- IdentifierPattern
   |  |           |  |              |  |              |     +- Identifier
   |  |           |  |              |  |              |        +- T-Identifier
   |  |           |  |              |  |              +- Initializer
   |  |           |  |              |  |                 +- T-eq
   |  |           |  |              |  |                 +- Expression
   |  |           |  |              |  |                    +- PrefixExpression
   |  |           |  |              |  |                       +- PostfixExpression
   |  |           |  |              |  |                          +- PostfixExpression
   |  |           |  |              |  |                          |  +- PrimaryExpression
   |  |           |  |              |  |                          |     +- Identifier
   |  |           |  |              |  |                          |        +- T-Identifier
   |  |           |  |              |  |                          +- FunctionCallArgumentClause
   |  |           |  |              |  |                             +- T-lparen
   |  |           |  |              |  |                             +- FunctionCallArgumentList
   |  |           |  |              |  |                             |  +- FunctionCallArgument
   |  |           |  |              |  |                             |  |  +- FunctionCallIdentifier
   |  |           |  |              |  |                             |  |  |  +- Identifier
   |  |           |  |              |  |                             |  |  |     +- T-Identifier
   |  |           |  |              |  |                             |  |  +- T-colon
   |  |           |  |              |  |                             |  |  +- Expression
   |  |           |  |              |  |                             |  |     +- PrefixExpression
   |  |           |  |              |  |                             |  |        +- PostfixExpression
   |  |           |  |              |  |                             |  |           +- PrimaryExpression
   |  |           |  |              |  |                             |  |              +- Identifier
   |  |           |  |              |  |                             |  |                 +- T-Identifier
   |  |           |  |              |  |                             |  +- T-comma
   |  |           |  |              |  |                             |  +- FunctionCallArgument
   |  |           |  |              |  |                             |  |  +- FunctionCallIdentifier
   |  |           |  |              |  |                             |  |  |  +- Identifier
   |  |           |  |              |  |                             |  |  |     +- T-Identifier
   |  |           |  |              |  |                             |  |  +- T-colon
   |  |           |  |              |  |                             |  |  +- Expression
   |  |           |  |              |  |                             |  |     +- PrefixExpression
   |  |           |  |              |  |                             |  |        +- PostfixExpression
   |  |           |  |              |  |                             |  |           +- PrimaryExpression
   |  |           |  |              |  |                             |  |              +- Identifier
   |  |           |  |              |  |                             |  |                 +- T-Identifier
   |  |           |  |              |  |                             |  +- T-comma
   |  |           |  |              |  |                             |  +- FunctionCallArgument
   |  |           |  |              |  |                             |     +- FunctionCallIdentifier
   |  |           |  |              |  |                             |     |  +- Identifier
   |  |           |  |              |  |                             |     |     +- T-Identifier
   |  |           |  |              |  |                             |     +- T-colon
   |  |           |  |              |  |                             |     +- Expression
   |  |           |  |              |  |                             |        +- PrefixExpression
   |  |           |  |              |  |                             |           +- PostfixExpression
   |  |           |  |              |  |                             |              +- PrimaryExpression
   |  |           |  |              |  |                             |                 +- Identifier
   |  |           |  |              |  |                             |                    +- T-Identifier
   |  |           |  |              |  |                             +- T-rparen
   |  |           |  |              |  +- Statement
   |  |           |  |              |  |  +- BranchStatement
   |  |           |  |              |  |     +- GuardStatement
   |  |           |  |              |  |        +- T-guard
   |  |           |  |              |  |        +- ConditionList
   |  |           |  |              |  |        |  +- Condition
   |  |           |  |              |  |        |     +- Expression
   |  |           |  |              |  |        |        +- PrefixExpression
   |  |           |  |              |  |        |           +- PrefixOperator
   |  |           |  |              |  |        |           |  +- Operator
   |  |           |  |              |  |        |           |     +- OperatorHead
   |  |           |  |              |  |        |           |        +- T-bang
   |  |           |  |              |  |        |           +- PostfixExpression
   |  |           |  |              |  |        |              +- PostfixExpression
   |  |           |  |              |  |        |              |  +- PostfixExpression
   |  |           |  |              |  |        |              |  |  +- PostfixExpression
   |  |           |  |              |  |        |              |  |  |  +- PrimaryExpression
   |  |           |  |              |  |        |              |  |  |     +- Identifier
   |  |           |  |              |  |        |              |  |  |        +- T-Identifier
   |  |           |  |              |  |        |              |  |  +- T-dot
   |  |           |  |              |  |        |              |  |  +- Identifier
   |  |           |  |              |  |        |              |  |     +- T-Identifier
   |  |           |  |              |  |        |              |  +- PostfixOperator
   |  |           |  |              |  |        |              |     +- Operator
   |  |           |  |              |  |        |              |        +- OperatorHead
   |  |           |  |              |  |        |              |           +- T-double-amp
   |  |           |  |              |  |        |              +- FunctionCallArgumentClause
   |  |           |  |              |  |        |                 +- T-lparen
   |  |           |  |              |  |        |                 +- FunctionCallArgumentList
   |  |           |  |              |  |        |                 |  +- FunctionCallArgument
   |  |           |  |              |  |        |                 |     +- Expression
   |  |           |  |              |  |        |                 |        +- PrefixExpression
   |  |           |  |              |  |        |                 |        |  +- PostfixExpression
   |  |           |  |              |  |        |                 |        |     +- PostfixExpression
   |  |           |  |              |  |        |                 |        |     |  +- PostfixExpression
   |  |           |  |              |  |        |                 |        |     |  |  +- PrimaryExpression
   |  |           |  |              |  |        |                 |        |     |  |     +- Identifier
   |  |           |  |              |  |        |                 |        |     |  |        +- T-Identifier
   |  |           |  |              |  |        |                 |        |     |  +- PostfixOperator
   |  |           |  |              |  |        |                 |        |     |     +- Operator
   |  |           |  |              |  |        |                 |        |     |        +- OperatorHead
   |  |           |  |              |  |        |                 |        |     |           +- T-double-eq
   |  |           |  |              |  |        |                 |        |     +- T-dot
   |  |           |  |              |  |        |                 |        |     +- Identifier
   |  |           |  |              |  |        |                 |        |        +- T-Identifier
   |  |           |  |              |  |        |                 |        +- BinaryExpression
   |  |           |  |              |  |        |                 |        |  +- BinaryOperator
   |  |           |  |              |  |        |                 |        |  |  +- Operator
   |  |           |  |              |  |        |                 |        |  |     +- OperatorHead
   |  |           |  |              |  |        |                 |        |  |        +- T-double-pipe
   |  |           |  |              |  |        |                 |        |  +- PrefixExpression
   |  |           |  |              |  |        |                 |        |     +- PostfixExpression
   |  |           |  |              |  |        |                 |        |        +- PostfixExpression
   |  |           |  |              |  |        |                 |        |        |  +- PrimaryExpression
   |  |           |  |              |  |        |                 |        |        |     +- Identifier
   |  |           |  |              |  |        |                 |        |        |        +- T-Identifier
   |  |           |  |              |  |        |                 |        |        +- T-dot
   |  |           |  |              |  |        |                 |        |        +- Identifier
   |  |           |  |              |  |        |                 |        |           +- T-Identifier
   |  |           |  |              |  |        |                 |        +- BinaryExpression
   |  |           |  |              |  |        |                 |           +- BinaryOperator
   |  |           |  |              |  |        |                 |           |  +- Operator
   |  |           |  |              |  |        |                 |           |     +- OperatorHead
   |  |           |  |              |  |        |                 |           |        +- T-double-eq
   |  |           |  |              |  |        |                 |           +- PrefixExpression
   |  |           |  |              |  |        |                 |              +- PostfixExpression
   |  |           |  |              |  |        |                 |                 +- PrimaryExpression
   |  |           |  |              |  |        |                 |                    +- Identifier
   |  |           |  |              |  |        |                 |                       +- T-Identifier
   |  |           |  |              |  |        |                 +- T-rparen
   |  |           |  |              |  |        +- T-else
   |  |           |  |              |  |        +- CodeBlock
   |  |           |  |              |  |           +- T-lbrace
   |  |           |  |              |  |           +- Statements
   |  |           |  |              |  |           |  +- Statement
   |  |           |  |              |  |           |     +- ControlTransferStatement
   |  |           |  |              |  |           |        +- ReturnStatement
   |  |           |  |              |  |           |           +- T-return
   |  |           |  |              |  |           |           +- Expression
   |  |           |  |              |  |           |              +- PrefixExpression
   |  |           |  |              |  |           |                 +- PostfixExpression
   |  |           |  |              |  |           |                    +- PrimaryExpression
   |  |           |  |              |  |           |                       +- Keyword
   |  |           |  |              |  |           |                          +- T-NilLiteral
   |  |           |  |              |  |           +- T-rbrace
   |  |           |  |              |  +- Statement
   |  |           |  |              |     +- ControlTransferStatement
   |  |           |  |              |        +- ReturnStatement
   |  |           |  |              |           +- T-return
   |  |           |  |              |           +- Expression
   |  |           |  |              |              +- PrefixExpression
   |  |           |  |              |                 +- PostfixExpression
   |  |           |  |              |                    +- PostfixExpression
   |  |           |  |              |                    |  +- PrimaryExpression
   |  |           |  |              |                    |     +- Identifier
   |  |           |  |              |                    |        +- T-Identifier
   |  |           |  |              |                    +- FunctionCallArgumentClause
   |  |           |  |              |                       +- T-lparen
   |  |           |  |              |                       +- FunctionCallArgumentList
   |  |           |  |              |                       |  +- FunctionCallArgument
   |  |           |  |              |                       |     +- Expression
   |  |           |  |              |                       |        +- PrefixExpression
   |  |           |  |              |                       |           +- PostfixExpression
   |  |           |  |              |                       |              +- PrimaryExpression
   |  |           |  |              |                       |                 +- Identifier
   |  |           |  |              |                       |                    +- T-Identifier
   |  |           |  |              |                       +- T-rparen
   |  |           |  |              +- T-rbrace
   |  |           |  +- ExtensionMember
   |  |           |  |  +- Declaration
   |  |           |  |     +- FunctionDeclaration
   |  |           |  |        +- FunctionHead
   |  |           |  |        |  +- Attributes
   |  |           |  |        |  |  +- Attribute
   |  |           |  |        |  |     +- T-at-symbol
   |  |           |  |        |  |     +- AttributeName
   |  |           |  |        |  |        +- Identifier
   |  |           |  |        |  |           +- T-Identifier
   |  |           |  |        |  +- DeclarationModifiers
   |  |           |  |        |  |  +- DeclarationModifier
   |  |           |  |        |  |     +- AccessLevelModifier
   |  |           |  |        |  |        +- T-public
   |  |           |  |        |  +- T-func
   |  |           |  |        +- FunctionName
   |  |           |  |        |  +- Identifier
   |  |           |  |        |     +- T-Identifier
   |  |           |  |        +- FunctionSignature
   |  |           |  |        |  +- ParameterClause
   |  |           |  |        |  |  +- T-lparen
   |  |           |  |        |  |  +- ParameterList
   |  |           |  |        |  |  |  +- Parameter
   |  |           |  |        |  |  |  |  +- LocalParameterName
   |  |           |  |        |  |  |  |  |  +- Identifier
   |  |           |  |        |  |  |  |  |     +- T-Identifier
   |  |           |  |        |  |  |  |  +- TypeAnnotation
   |  |           |  |        |  |  |  |     +- T-colon
   |  |           |  |        |  |  |  |     +- SType
   |  |           |  |        |  |  |  |        +- TypeIdentifier
   |  |           |  |        |  |  |  |           +- TypeName
   |  |           |  |        |  |  |  |              +- Identifier
   |  |           |  |        |  |  |  |                 +- T-Identifier
   |  |           |  |        |  |  |  +- T-comma
   |  |           |  |        |  |  |  +- Parameter
   |  |           |  |        |  |  |     +- ExternalParameterName
   |  |           |  |        |  |  |     |  +- Identifier
   |  |           |  |        |  |  |     |     +- T-Identifier
   |  |           |  |        |  |  |     +- LocalParameterName
   |  |           |  |        |  |  |     |  +- Identifier
   |  |           |  |        |  |  |     |     +- T-Identifier
   |  |           |  |        |  |  |     +- TypeAnnotation
   |  |           |  |        |  |  |     |  +- T-colon
   |  |           |  |        |  |  |     |  +- SType
   |  |           |  |        |  |  |     |     +- TypeIdentifier
   |  |           |  |        |  |  |     |        +- TypeName
   |  |           |  |        |  |  |     |           +- Identifier
   |  |           |  |        |  |  |     |              +- T-Identifier
   |  |           |  |        |  |  |     +- DefaultArgumentClause
   |  |           |  |        |  |  |        +- T-eq
   |  |           |  |        |  |  |        +- Expression
   |  |           |  |        |  |  |           +- PrefixExpression
   |  |           |  |        |  |  |              +- PostfixExpression
   |  |           |  |        |  |  |                 +- PrimaryExpression
   |  |           |  |        |  |  |                    +- Keyword
   |  |           |  |        |  |  |                       +- T-Any
   |  |           |  |        |  |  +- T-rparen
   |  |           |  |        |  +- FunctionResult
   |  |           |  |        |     +- T-rarrow
   |  |           |  |        |     +- SType
   |  |           |  |        |        +- SType
   |  |           |  |        |        |  +- TypeIdentifier
   |  |           |  |        |        |     +- TypeName
   |  |           |  |        |        |        +- Identifier
   |  |           |  |        |        |           +- T-Identifier
   |  |           |  |        |        +- T-question
   |  |           |  |        +- FunctionBody
   |  |           |  |           +- CodeBlock
   |  |           |  |              +- T-lbrace
   |  |           |  |              +- Statements
   |  |           |  |              |  +- Statement
   |  |           |  |              |  |  +- Declaration
   |  |           |  |              |  |     +- VariableDeclaration
   |  |           |  |              |  |        +- VariableDeclarationHead
   |  |           |  |              |  |        |  +- T-var
   |  |           |  |              |  |        +- PatternInitializerList
   |  |           |  |              |  |           +- PatternInitializer
   |  |           |  |              |  |              +- Pattern
   |  |           |  |              |  |              |  +- IdentifierPattern
   |  |           |  |              |  |              |     +- Identifier
   |  |           |  |              |  |              |        +- T-Identifier
   |  |           |  |              |  |              +- Initializer
   |  |           |  |              |  |                 +- T-eq
   |  |           |  |              |  |                 +- Expression
   |  |           |  |              |  |                    +- PrefixExpression
   |  |           |  |              |  |                       +- PostfixExpression
   |  |           |  |              |  |                          +- PrimaryExpression
   |  |           |  |              |  |                             +- Identifier
   |  |           |  |              |  |                                +- T-Identifier
   |  |           |  |              |  +- Statement
   |  |           |  |              |  |  +- Declaration
   |  |           |  |              |  |     +- VariableDeclaration
   |  |           |  |              |  |        +- VariableDeclarationHead
   |  |           |  |              |  |        |  +- T-var
   |  |           |  |              |  |        +- PatternInitializerList
   |  |           |  |              |  |           +- PatternInitializer
   |  |           |  |              |  |              +- Pattern
   |  |           |  |              |  |              |  +- IdentifierPattern
   |  |           |  |              |  |              |     +- Identifier
   |  |           |  |              |  |              |        +- T-Identifier
   |  |           |  |              |  |              +- Initializer
   |  |           |  |              |  |                 +- T-eq
   |  |           |  |              |  |                 +- Expression
   |  |           |  |              |  |                    +- PrefixExpression
   |  |           |  |              |  |                       +- PostfixExpression
   |  |           |  |              |  |                          +- PrimaryExpression
   |  |           |  |              |  |                             +- LiteralExpression
   |  |           |  |              |  |                                +- Literal
   |  |           |  |              |  |                                   +- NumericLiteral
   |  |           |  |              |  |                                      +- IntegerLiteral
   |  |           |  |              |  |                                         +- T-DecimalLiteral
   |  |           |  |              |  +- Statement
   |  |           |  |              |  |  +- Declaration
   |  |           |  |              |  |     +- VariableDeclaration
   |  |           |  |              |  |        +- VariableDeclarationHead
   |  |           |  |              |  |        |  +- T-var
   |  |           |  |              |  |        +- PatternInitializerList
   |  |           |  |              |  |           +- PatternInitializer
   |  |           |  |              |  |              +- Pattern
   |  |           |  |              |  |              |  +- IdentifierPattern
   |  |           |  |              |  |              |  |  +- Identifier
   |  |           |  |              |  |              |  |     +- T-Identifier
   |  |           |  |              |  |              |  +- TypeAnnotation
   |  |           |  |              |  |              |     +- T-colon
   |  |           |  |              |  |              |     +- SType
   |  |           |  |              |  |              |        +- SType
   |  |           |  |              |  |              |        |  +- TypeIdentifier
   |  |           |  |              |  |              |        |     +- TypeName
   |  |           |  |              |  |              |        |        +- Identifier
   |  |           |  |              |  |              |        |           +- T-Identifier
   |  |           |  |              |  |              |        +- T-question
   |  |           |  |              |  |              +- Initializer
   |  |           |  |              |  |                 +- T-eq
   |  |           |  |              |  |                 +- Expression
   |  |           |  |              |  |                    +- PrefixExpression
   |  |           |  |              |  |                       +- PostfixExpression
   |  |           |  |              |  |                          +- PrimaryExpression
   |  |           |  |              |  |                             +- Keyword
   |  |           |  |              |  |                                +- T-NilLiteral
   |  |           |  |              |  +- Statement
   |  |           |  |              |  |  +- LoopStatement
   |  |           |  |              |  |     +- WhileStatement
   |  |           |  |              |  |        +- T-while
   |  |           |  |              |  |        +- ConditionList
   |  |           |  |              |  |        |  +- Condition
   |  |           |  |              |  |        |     +- Expression
   |  |           |  |              |  |        |        +- PrefixExpression
   |  |           |  |              |  |        |           +- PrefixOperator
   |  |           |  |              |  |        |           |  +- Operator
   |  |           |  |              |  |        |           |     +- OperatorHead
   |  |           |  |              |  |        |           |        +- T-bang
   |  |           |  |              |  |        |           +- PostfixExpression
   |  |           |  |              |  |        |              +- PostfixExpression
   |  |           |  |              |  |        |              |  +- PrimaryExpression
   |  |           |  |              |  |        |              |     +- Identifier
   |  |           |  |              |  |        |              |        +- T-Identifier
   |  |           |  |              |  |        |              +- T-dot
   |  |           |  |              |  |        |              +- Identifier
   |  |           |  |              |  |        |                 +- T-Identifier
   |  |           |  |              |  |        +- CodeBlock
   |  |           |  |              |  |           +- T-lbrace
   |  |           |  |              |  |           +- Statements
   |  |           |  |              |  |           |  +- Statement
   |  |           |  |              |  |           |  |  +- Declaration
   |  |           |  |              |  |           |  |     +- ConstantDeclaration
   |  |           |  |              |  |           |  |        +- T-let
   |  |           |  |              |  |           |  |        +- PatternInitializerList
   |  |           |  |              |  |           |  |           +- PatternInitializer
   |  |           |  |              |  |           |  |              +- Pattern
   |  |           |  |              |  |           |  |              |  +- IdentifierPattern
   |  |           |  |              |  |           |  |              |     +- Identifier
   |  |           |  |              |  |           |  |              |        +- T-Identifier
   |  |           |  |              |  |           |  |              +- Initializer
   |  |           |  |              |  |           |  |                 +- T-eq
   |  |           |  |              |  |           |  |                 +- Expression
   |  |           |  |              |  |           |  |                    +- PrefixExpression
   |  |           |  |              |  |           |  |                       +- PostfixExpression
   |  |           |  |              |  |           |  |                          +- PostfixExpression
   |  |           |  |              |  |           |  |                          |  +- PostfixExpression
   |  |           |  |              |  |           |  |                          |  |  +- PrimaryExpression
   |  |           |  |              |  |           |  |                          |  |     +- Identifier
   |  |           |  |              |  |           |  |                          |  |        +- T-Identifier
   |  |           |  |              |  |           |  |                          |  +- T-dot
   |  |           |  |              |  |           |  |                          |  +- Identifier
   |  |           |  |              |  |           |  |                          |     +- T-Identifier
   |  |           |  |              |  |           |  |                          +- FunctionCallArgumentClause
   |  |           |  |              |  |           |  |                             +- T-lparen
   |  |           |  |              |  |           |  |                             +- FunctionCallArgumentList
   |  |           |  |              |  |           |  |                             |  +- FunctionCallArgument
   |  |           |  |              |  |           |  |                             |  |  +- Expression
   |  |           |  |              |  |           |  |                             |  |     +- PrefixExpression
   |  |           |  |              |  |           |  |                             |  |        +- PostfixExpression
   |  |           |  |              |  |           |  |                             |  |           +- PrimaryExpression
   |  |           |  |              |  |           |  |                             |  |              +- Identifier
   |  |           |  |              |  |           |  |                             |  |                 +- T-Identifier
   |  |           |  |              |  |           |  |                             |  +- T-comma
   |  |           |  |              |  |           |  |                             |  +- FunctionCallArgument
   |  |           |  |              |  |           |  |                             |     +- FunctionCallIdentifier
   |  |           |  |              |  |           |  |                             |     |  +- Identifier
   |  |           |  |              |  |           |  |                             |     |     +- T-Identifier
   |  |           |  |              |  |           |  |                             |     +- T-colon
   |  |           |  |              |  |           |  |                             |     +- Expression
   |  |           |  |              |  |           |  |                             |        +- PrefixExpression
   |  |           |  |              |  |           |  |                             |           +- PostfixExpression
   |  |           |  |              |  |           |  |                             |              +- PrimaryExpression
   |  |           |  |              |  |           |  |                             |                 +- Identifier
   |  |           |  |              |  |           |  |                             |                    +- T-Identifier
   |  |           |  |              |  |           |  |                             +- T-rparen
   |  |           |  |              |  |           |  +- Statement
   |  |           |  |              |  |           |  |  +- Declaration
   |  |           |  |              |  |           |  |     +- ConstantDeclaration
   |  |           |  |              |  |           |  |        +- T-let
   |  |           |  |              |  |           |  |        +- PatternInitializerList
   |  |           |  |              |  |           |  |           +- PatternInitializer
   |  |           |  |              |  |           |  |              +- Pattern
   |  |           |  |              |  |           |  |              |  +- IdentifierPattern
   |  |           |  |              |  |           |  |              |     +- Identifier
   |  |           |  |              |  |           |  |              |        +- T-Identifier
   |  |           |  |              |  |           |  |              +- Initializer
   |  |           |  |              |  |           |  |                 +- T-eq
   |  |           |  |              |  |           |  |                 +- Expression
   |  |           |  |              |  |           |  |                    +- PrefixExpression
   |  |           |  |              |  |           |  |                       +- PostfixExpression
   |  |           |  |              |  |           |  |                          +- PostfixExpression
   |  |           |  |              |  |           |  |                          |  +- PostfixExpression
   |  |           |  |              |  |           |  |                          |  |  +- PrimaryExpression
   |  |           |  |              |  |           |  |                          |  |     +- Identifier
   |  |           |  |              |  |           |  |                          |  |        +- T-Identifier
   |  |           |  |              |  |           |  |                          |  +- T-dot
   |  |           |  |              |  |           |  |                          |  +- Identifier
   |  |           |  |              |  |           |  |                          |     +- T-Identifier
   |  |           |  |              |  |           |  |                          +- T-lbracket
   |  |           |  |              |  |           |  |                          +- TupleElementList
   |  |           |  |              |  |           |  |                          |  +- TupleElement
   |  |           |  |              |  |           |  |                          |     +- Expression
   |  |           |  |              |  |           |  |                          |        +- PrefixExpression
   |  |           |  |              |  |           |  |                          |           +- PostfixExpression
   |  |           |  |              |  |           |  |                          |              +- PostfixExpression
   |  |           |  |              |  |           |  |                          |              |  +- PrimaryExpression
   |  |           |  |              |  |           |  |                          |              |     +- Identifier
   |  |           |  |              |  |           |  |                          |              |        +- T-Identifier
   |  |           |  |              |  |           |  |                          |              +- T-dot
   |  |           |  |              |  |           |  |                          |              +- Identifier
   |  |           |  |              |  |           |  |                          |                 +- T-Identifier
   |  |           |  |              |  |           |  |                          +- T-rbracket
   |  |           |  |              |  |           |  +- Statement
   |  |           |  |              |  |           |  |  +- BranchStatement
   |  |           |  |              |  |           |  |     +- IfStatement
   |  |           |  |              |  |           |  |        +- T-if
   |  |           |  |              |  |           |  |        +- ConditionList
   |  |           |  |              |  |           |  |        |  +- Condition
   |  |           |  |              |  |           |  |        |     +- OptionalBindingCondition
   |  |           |  |              |  |           |  |        |        +- T-let
   |  |           |  |              |  |           |  |        |        +- Pattern
   |  |           |  |              |  |           |  |        |        |  +- IdentifierPattern
   |  |           |  |              |  |           |  |        |        |     +- Identifier
   |  |           |  |              |  |           |  |        |        |        +- T-Identifier
   |  |           |  |              |  |           |  |        |        +- Initializer
   |  |           |  |              |  |           |  |        |           +- T-eq
   |  |           |  |              |  |           |  |        |           +- Expression
   |  |           |  |              |  |           |  |        |              +- PrefixExpression
   |  |           |  |              |  |           |  |        |                 +- PostfixExpression
   |  |           |  |              |  |           |  |        |                    +- PostfixExpression
   |  |           |  |              |  |           |  |        |                    |  +- PrimaryExpression
   |  |           |  |              |  |           |  |        |                    |     +- Identifier
   |  |           |  |              |  |           |  |        |                    |        +- T-Identifier
   |  |           |  |              |  |           |  |        |                    +- T-dot
   |  |           |  |              |  |           |  |        |                    +- Identifier
   |  |           |  |              |  |           |  |        |                       +- T-Identifier
   |  |           |  |              |  |           |  |        +- CodeBlock
   |  |           |  |              |  |           |  |        |  +- T-lbrace
   |  |           |  |              |  |           |  |        |  +- Statements
   |  |           |  |              |  |           |  |        |  |  +- Statement
   |  |           |  |              |  |           |  |        |  |  |  +- Declaration
   |  |           |  |              |  |           |  |        |  |  |     +- ConstantDeclaration
   |  |           |  |              |  |           |  |        |  |  |        +- T-let
   |  |           |  |              |  |           |  |        |  |  |        +- PatternInitializerList
   |  |           |  |              |  |           |  |        |  |  |           +- PatternInitializer
   |  |           |  |              |  |           |  |        |  |  |              +- Pattern
   |  |           |  |              |  |           |  |        |  |  |              |  +- IdentifierPattern
   |  |           |  |              |  |           |  |        |  |  |              |     +- Identifier
   |  |           |  |              |  |           |  |        |  |  |              |        +- T-Identifier
   |  |           |  |              |  |           |  |        |  |  |              +- Initializer
   |  |           |  |              |  |           |  |        |  |  |                 +- T-eq
   |  |           |  |              |  |           |  |        |  |  |                 +- Expression
   |  |           |  |              |  |           |  |        |  |  |                    +- PrefixExpression
   |  |           |  |              |  |           |  |        |  |  |                       +- PostfixExpression
   |  |           |  |              |  |           |  |        |  |  |                          +- PostfixExpression
   |  |           |  |              |  |           |  |        |  |  |                          |  +- PostfixExpression
   |  |           |  |              |  |           |  |        |  |  |                          |  |  +- PrimaryExpression
   |  |           |  |              |  |           |  |        |  |  |                          |  |     +- Identifier
   |  |           |  |              |  |           |  |        |  |  |                          |  |        +- T-Identifier
   |  |           |  |              |  |           |  |        |  |  |                          |  +- T-dot
   |  |           |  |              |  |           |  |        |  |  |                          |  +- Identifier
   |  |           |  |              |  |           |  |        |  |  |                          |     +- T-Identifier
   |  |           |  |              |  |           |  |        |  |  |                          +- FunctionCallArgumentClause
   |  |           |  |              |  |           |  |        |  |  |                             +- T-lparen
   |  |           |  |              |  |           |  |        |  |  |                             +- FunctionCallArgumentList
   |  |           |  |              |  |           |  |        |  |  |                             |  +- FunctionCallArgument
   |  |           |  |              |  |           |  |        |  |  |                             |     +- Expression
   |  |           |  |              |  |           |  |        |  |  |                             |        +- PrefixExpression
   |  |           |  |              |  |           |  |        |  |  |                             |           +- PostfixExpression
   |  |           |  |              |  |           |  |        |  |  |                             |              +- PrimaryExpression
   |  |           |  |              |  |           |  |        |  |  |                             |                 +- Identifier
   |  |           |  |              |  |           |  |        |  |  |                             |                    +- T-Identifier
   |  |           |  |              |  |           |  |        |  |  |                             +- T-rparen
   |  |           |  |              |  |           |  |        |  |  +- Statement
   |  |           |  |              |  |           |  |        |  |  |  +- Expression
   |  |           |  |              |  |           |  |        |  |  |     +- PrefixExpression
   |  |           |  |              |  |           |  |        |  |  |        +- PostfixExpression
   |  |           |  |              |  |           |  |        |  |  |           +- PostfixExpression
   |  |           |  |              |  |           |  |        |  |  |           |  +- PrimaryExpression
   |  |           |  |              |  |           |  |        |  |  |           |     +- Identifier
   |  |           |  |              |  |           |  |        |  |  |           |        +- T-Identifier
   |  |           |  |              |  |           |  |        |  |  |           +- PostfixOperator
   |  |           |  |              |  |           |  |        |  |  |              +- Operator
   |  |           |  |              |  |           |  |        |  |  |                 +- OperatorHead
   |  |           |  |              |  |           |  |        |  |  |                    +- T-eq
   |  |           |  |              |  |           |  |        |  |  +- Statement
   |  |           |  |              |  |           |  |        |  |  |  +- Expression
   |  |           |  |              |  |           |  |        |  |  |     +- PrefixExpression
   |  |           |  |              |  |           |  |        |  |  |        +- PostfixExpression
   |  |           |  |              |  |           |  |        |  |  |           +- PostfixExpression
   |  |           |  |              |  |           |  |        |  |  |           |  +- PrimaryExpression
   |  |           |  |              |  |           |  |        |  |  |           |     +- Identifier
   |  |           |  |              |  |           |  |        |  |  |           |        +- T-Identifier
   |  |           |  |              |  |           |  |        |  |  |           +- PostfixOperator
   |  |           |  |              |  |           |  |        |  |  |              +- Operator
   |  |           |  |              |  |           |  |        |  |  |                 +- OperatorHead
   |  |           |  |              |  |           |  |        |  |  |                    +- T-OperatorHead
   |  |           |  |              |  |           |  |        |  |  +- Statement
   |  |           |  |              |  |           |  |        |  |  |  +- Expression
   |  |           |  |              |  |           |  |        |  |  |     +- PrefixExpression
   |  |           |  |              |  |           |  |        |  |  |        +- PostfixExpression
   |  |           |  |              |  |           |  |        |  |  |           +- PrimaryExpression
   |  |           |  |              |  |           |  |        |  |  |              +- Identifier
   |  |           |  |              |  |           |  |        |  |  |                 +- T-Identifier
   |  |           |  |              |  |           |  |        |  |  +- Statement
   |  |           |  |              |  |           |  |        |  |  |  +- Expression
   |  |           |  |              |  |           |  |        |  |  |     +- PrefixExpression
   |  |           |  |              |  |           |  |        |  |  |        +- PostfixExpression
   |  |           |  |              |  |           |  |        |  |  |           +- PostfixExpression
   |  |           |  |              |  |           |  |        |  |  |           |  +- PrimaryExpression
   |  |           |  |              |  |           |  |        |  |  |           |     +- Identifier
   |  |           |  |              |  |           |  |        |  |  |           |        +- T-Identifier
   |  |           |  |              |  |           |  |        |  |  |           +- PostfixOperator
   |  |           |  |              |  |           |  |        |  |  |              +- Operator
   |  |           |  |              |  |           |  |        |  |  |                 +- OperatorHead
   |  |           |  |              |  |           |  |        |  |  |                 |  +- T-OperatorHead
   |  |           |  |              |  |           |  |        |  |  |                 +- OperatorCharacter
   |  |           |  |              |  |           |  |        |  |  |                    +- OperatorHead
   |  |           |  |              |  |           |  |        |  |  |                       +- T-eq
   |  |           |  |              |  |           |  |        |  |  +- Statement
   |  |           |  |              |  |           |  |        |  |     +- Expression
   |  |           |  |              |  |           |  |        |  |        +- PrefixExpression
   |  |           |  |              |  |           |  |        |  |           +- PostfixExpression
   |  |           |  |              |  |           |  |        |  |              +- PostfixExpression
   |  |           |  |              |  |           |  |        |  |              |  +- PostfixExpression
   |  |           |  |              |  |           |  |        |  |              |  |  +- PrimaryExpression
   |  |           |  |              |  |           |  |        |  |              |  |     +- Identifier
   |  |           |  |              |  |           |  |        |  |              |  |        +- T-Identifier
   |  |           |  |              |  |           |  |        |  |              |  +- PostfixOperator
   |  |           |  |              |  |           |  |        |  |              |     +- Operator
   |  |           |  |              |  |           |  |        |  |              |        +- OperatorHead
   |  |           |  |              |  |           |  |        |  |              |           +- T-minus
   |  |           |  |              |  |           |  |        |  |              +- FunctionCallArgumentClause
   |  |           |  |              |  |           |  |        |  |                 +- T-lparen
   |  |           |  |              |  |           |  |        |  |                 +- FunctionCallArgumentList
   |  |           |  |              |  |           |  |        |  |                 |  +- FunctionCallArgument
   |  |           |  |              |  |           |  |        |  |                 |     +- Expression
   |  |           |  |              |  |           |  |        |  |                 |        +- PrefixExpression
   |  |           |  |              |  |           |  |        |  |                 |        |  +- PostfixExpression
   |  |           |  |              |  |           |  |        |  |                 |        |     +- PrimaryExpression
   |  |           |  |              |  |           |  |        |  |                 |        |        +- Identifier
   |  |           |  |              |  |           |  |        |  |                 |        |           +- T-Identifier
   |  |           |  |              |  |           |  |        |  |                 |        +- BinaryExpression
   |  |           |  |              |  |           |  |        |  |                 |        |  +- BinaryOperator
   |  |           |  |              |  |           |  |        |  |                 |        |  |  +- Operator
   |  |           |  |              |  |           |  |        |  |                 |        |  |     +- OperatorHead
   |  |           |  |              |  |           |  |        |  |                 |        |  |        +- T-double-eq
   |  |           |  |              |  |           |  |        |  |                 |        |  +- PrefixExpression
   |  |           |  |              |  |           |  |        |  |                 |        |     +- PostfixExpression
   |  |           |  |              |  |           |  |        |  |                 |        |        +- PostfixExpression
   |  |           |  |              |  |           |  |        |  |                 |        |        |  +- PrimaryExpression
   |  |           |  |              |  |           |  |        |  |                 |        |        |     +- Identifier
   |  |           |  |              |  |           |  |        |  |                 |        |        |        +- T-Identifier
   |  |           |  |              |  |           |  |        |  |                 |        |        +- T-dot
   |  |           |  |              |  |           |  |        |  |                 |        |        +- Identifier
   |  |           |  |              |  |           |  |        |  |                 |        |           +- T-Identifier
   |  |           |  |              |  |           |  |        |  |                 |        +- BinaryExpression
   |  |           |  |              |  |           |  |        |  |                 |           +- ConditionalOperator
   |  |           |  |              |  |           |  |        |  |                 |           |  +- T-question
   |  |           |  |              |  |           |  |        |  |                 |           |  +- Expression
   |  |           |  |              |  |           |  |        |  |                 |           |  |  +- PrefixExpression
   |  |           |  |              |  |           |  |        |  |                 |           |  |     +- PostfixExpression
   |  |           |  |              |  |           |  |        |  |                 |           |  |        +- PostfixExpression
   |  |           |  |              |  |           |  |        |  |                 |           |  |        |  +- PostfixExpression
   |  |           |  |              |  |           |  |        |  |                 |           |  |        |  |  +- PostfixExpression
   |  |           |  |              |  |           |  |        |  |                 |           |  |        |  |  |  +- PrimaryExpression
   |  |           |  |              |  |           |  |        |  |                 |           |  |        |  |  |     +- Identifier
   |  |           |  |              |  |           |  |        |  |                 |           |  |        |  |  |        +- T-Identifier
   |  |           |  |              |  |           |  |        |  |                 |           |  |        |  |  +- T-dot
   |  |           |  |              |  |           |  |        |  |                 |           |  |        |  |  +- Identifier
   |  |           |  |              |  |           |  |        |  |                 |           |  |        |  |     +- T-Identifier
   |  |           |  |              |  |           |  |        |  |                 |           |  |        |  +- T-lbracket
   |  |           |  |              |  |           |  |        |  |                 |           |  |        |  +- TupleElementList
   |  |           |  |              |  |           |  |        |  |                 |           |  |        |  |  +- TupleElement
   |  |           |  |              |  |           |  |        |  |                 |           |  |        |  |     +- Expression
   |  |           |  |              |  |           |  |        |  |                 |           |  |        |  |        +- PrefixExpression
   |  |           |  |              |  |           |  |        |  |                 |           |  |        |  |           +- PostfixExpression
   |  |           |  |              |  |           |  |        |  |                 |           |  |        |  |              +- PrimaryExpression
   |  |           |  |              |  |           |  |        |  |                 |           |  |        |  |                 +- Identifier
   |  |           |  |              |  |           |  |        |  |                 |           |  |        |  |                    +- T-Identifier
   |  |           |  |              |  |           |  |        |  |                 |           |  |        |  +- T-rbracket
   |  |           |  |              |  |           |  |        |  |                 |           |  |        +- T-dot
   |  |           |  |              |  |           |  |        |  |                 |           |  |        +- Identifier
   |  |           |  |              |  |           |  |        |  |                 |           |  |           +- T-Identifier
   |  |           |  |              |  |           |  |        |  |                 |           |  +- T-colon
   |  |           |  |              |  |           |  |        |  |                 |           +- PrefixExpression
   |  |           |  |              |  |           |  |        |  |                 |              +- PostfixExpression
   |  |           |  |              |  |           |  |        |  |                 |                 +- PrimaryExpression
   |  |           |  |              |  |           |  |        |  |                 |                    +- LiteralExpression
   |  |           |  |              |  |           |  |        |  |                 |                       +- Literal
   |  |           |  |              |  |           |  |        |  |                 |                          +- NumericLiteral
   |  |           |  |              |  |           |  |        |  |                 |                             +- IntegerLiteral
   |  |           |  |              |  |           |  |        |  |                 |                                +- T-DecimalLiteral
   |  |           |  |              |  |           |  |        |  |                 +- T-rparen
   |  |           |  |              |  |           |  |        |  +- T-rbrace
   |  |           |  |              |  |           |  |        +- ElseClause
   |  |           |  |              |  |           |  |           +- T-else
   |  |           |  |              |  |           |  |           +- CodeBlock
   |  |           |  |              |  |           |  |              +- T-lbrace
   |  |           |  |              |  |           |  |              +- Statements
   |  |           |  |              |  |           |  |              |  +- Statement
   |  |           |  |              |  |           |  |              |  |  +- Expression
   |  |           |  |              |  |           |  |              |  |     +- PrefixExpression
   |  |           |  |              |  |           |  |              |  |        +- PostfixExpression
   |  |           |  |              |  |           |  |              |  |           +- PostfixExpression
   |  |           |  |              |  |           |  |              |  |           |  +- PrimaryExpression
   |  |           |  |              |  |           |  |              |  |           |     +- Identifier
   |  |           |  |              |  |           |  |              |  |           |        +- T-Identifier
   |  |           |  |              |  |           |  |              |  |           +- PostfixOperator
   |  |           |  |              |  |           |  |              |  |              +- Operator
   |  |           |  |              |  |           |  |              |  |                 +- OperatorHead
   |  |           |  |              |  |           |  |              |  |                 |  +- T-OperatorHead
   |  |           |  |              |  |           |  |              |  |                 +- OperatorCharacter
   |  |           |  |              |  |           |  |              |  |                    +- OperatorHead
   |  |           |  |              |  |           |  |              |  |                       +- T-eq
   |  |           |  |              |  |           |  |              |  +- Statement
   |  |           |  |              |  |           |  |              |  |  +- Expression
   |  |           |  |              |  |           |  |              |  |     +- PrefixExpression
   |  |           |  |              |  |           |  |              |  |        +- PostfixExpression
   |  |           |  |              |  |           |  |              |  |           +- PostfixExpression
   |  |           |  |              |  |           |  |              |  |           |  +- PostfixExpression
   |  |           |  |              |  |           |  |              |  |           |  |  +- PostfixExpression
   |  |           |  |              |  |           |  |              |  |           |  |  |  +- PrimaryExpression
   |  |           |  |              |  |           |  |              |  |           |  |  |     +- Identifier
   |  |           |  |              |  |           |  |              |  |           |  |  |        +- T-Identifier
   |  |           |  |              |  |           |  |              |  |           |  |  +- T-dot
   |  |           |  |              |  |           |  |              |  |           |  |  +- Identifier
   |  |           |  |              |  |           |  |              |  |           |  |     +- T-Identifier
   |  |           |  |              |  |           |  |              |  |           |  +- FunctionCallArgumentClause
   |  |           |  |              |  |           |  |              |  |           |     +- T-lparen
   |  |           |  |              |  |           |  |              |  |           |     +- FunctionCallArgumentList
   |  |           |  |              |  |           |  |              |  |           |     |  +- FunctionCallArgument
   |  |           |  |              |  |           |  |              |  |           |     |     +- Expression
   |  |           |  |              |  |           |  |              |  |           |     |        +- PrefixExpression
   |  |           |  |              |  |           |  |              |  |           |     |           +- PostfixExpression
   |  |           |  |              |  |           |  |              |  |           |     |              +- PostfixExpression
   |  |           |  |              |  |           |  |              |  |           |     |              |  +- PrimaryExpression
   |  |           |  |              |  |           |  |              |  |           |     |              |     +- Identifier
   |  |           |  |              |  |           |  |              |  |           |     |              |        +- T-Identifier
   |  |           |  |              |  |           |  |              |  |           |     |              +- T-dot
   |  |           |  |              |  |           |  |              |  |           |     |              +- Identifier
   |  |           |  |              |  |           |  |              |  |           |     |                 +- T-Identifier
   |  |           |  |              |  |           |  |              |  |           |     +- T-rparen
   |  |           |  |              |  |           |  |              |  |           +- PostfixOperator
   |  |           |  |              |  |           |  |              |  |              +- Operator
   |  |           |  |              |  |           |  |              |  |                 +- OperatorHead
   |  |           |  |              |  |           |  |              |  |                    +- T-minus
   |  |           |  |              |  |           |  |              |  +- Statement
   |  |           |  |              |  |           |  |              |     +- Expression
   |  |           |  |              |  |           |  |              |        +- PrefixExpression
   |  |           |  |              |  |           |  |              |           +- PostfixExpression
   |  |           |  |              |  |           |  |              |              +- PostfixExpression
   |  |           |  |              |  |           |  |              |              |  +- PrimaryExpression
   |  |           |  |              |  |           |  |              |              |     +- Identifier
   |  |           |  |              |  |           |  |              |              |        +- T-Identifier
   |  |           |  |              |  |           |  |              |              +- T-dot
   |  |           |  |              |  |           |  |              |              +- Identifier
   |  |           |  |              |  |           |  |              |                 +- T-Identifier
   |  |           |  |              |  |           |  |              +- T-rbrace
   |  |           |  |              |  |           |  +- Statement
   |  |           |  |              |  |           |  |  +- Expression
   |  |           |  |              |  |           |  |     +- PrefixExpression
   |  |           |  |              |  |           |  |        +- PostfixExpression
   |  |           |  |              |  |           |  |           +- PostfixExpression
   |  |           |  |              |  |           |  |           |  +- PrimaryExpression
   |  |           |  |              |  |           |  |           |     +- Identifier
   |  |           |  |              |  |           |  |           |        +- T-Identifier
   |  |           |  |              |  |           |  |           +- PostfixOperator
   |  |           |  |              |  |           |  |              +- Operator
   |  |           |  |              |  |           |  |                 +- OperatorHead
   |  |           |  |              |  |           |  |                    +- T-eq
   |  |           |  |              |  |           |  +- Statement
   |  |           |  |              |  |           |     +- Expression
   |  |           |  |              |  |           |        +- PrefixExpression
   |  |           |  |              |  |           |           +- PostfixExpression
   |  |           |  |              |  |           |              +- PrimaryExpression
   |  |           |  |              |  |           |                 +- Identifier
   |  |           |  |              |  |           |                    +- T-Identifier
   |  |           |  |              |  |           +- T-rbrace
   |  |           |  |              |  +- Statement
   |  |           |  |              |  |  +- Declaration
   |  |           |  |              |  |     +- ConstantDeclaration
   |  |           |  |              |  |        +- T-let
   |  |           |  |              |  |        +- PatternInitializerList
   |  |           |  |              |  |           +- PatternInitializer
   |  |           |  |              |  |              +- Pattern
   |  |           |  |              |  |              |  +- IdentifierPattern
   |  |           |  |              |  |              |     +- Identifier
   |  |           |  |              |  |              |        +- T-Identifier
   |  |           |  |              |  |              +- Initializer
   |  |           |  |              |  |                 +- T-eq
   |  |           |  |              |  |                 +- Expression
   |  |           |  |              |  |                    +- PrefixExpression
   |  |           |  |              |  |                       +- PostfixExpression
   |  |           |  |              |  |                          +- PostfixExpression
   |  |           |  |              |  |                          |  +- PostfixExpression
   |  |           |  |              |  |                          |  |  +- PrimaryExpression
   |  |           |  |              |  |                          |  |     +- Identifier
   |  |           |  |              |  |                          |  |        +- T-Identifier
   |  |           |  |              |  |                          |  +- T-dot
   |  |           |  |              |  |                          |  +- Identifier
   |  |           |  |              |  |                          |     +- T-Identifier
   |  |           |  |              |  |                          +- FunctionCallArgumentClause
   |  |           |  |              |  |                             +- T-lparen
   |  |           |  |              |  |                             +- FunctionCallArgumentList
   |  |           |  |              |  |                             |  +- FunctionCallArgument
   |  |           |  |              |  |                             |  |  +- Expression
   |  |           |  |              |  |                             |  |     +- PrefixExpression
   |  |           |  |              |  |                             |  |        +- PostfixExpression
   |  |           |  |              |  |                             |  |           +- PrimaryExpression
   |  |           |  |              |  |                             |  |              +- Identifier
   |  |           |  |              |  |                             |  |                 +- T-Identifier
   |  |           |  |              |  |                             |  +- T-comma
   |  |           |  |              |  |                             |  +- FunctionCallArgument
   |  |           |  |              |  |                             |     +- FunctionCallIdentifier
   |  |           |  |              |  |                             |     |  +- Identifier
   |  |           |  |              |  |                             |     |     +- T-Identifier
   |  |           |  |              |  |                             |     +- T-colon
   |  |           |  |              |  |                             |     +- Expression
   |  |           |  |              |  |                             |        +- PrefixExpression
   |  |           |  |              |  |                             |           +- PostfixExpression
   |  |           |  |              |  |                             |              +- PrimaryExpression
   |  |           |  |              |  |                             |                 +- Identifier
   |  |           |  |              |  |                             |                    +- T-Identifier
   |  |           |  |              |  |                             +- T-rparen
   |  |           |  |              |  +- Statement
   |  |           |  |              |  |  +- BranchStatement
   |  |           |  |              |  |     +- IfStatement
   |  |           |  |              |  |        +- T-if
   |  |           |  |              |  |        +- ConditionList
   |  |           |  |              |  |        |  +- Condition
   |  |           |  |              |  |        |     +- OptionalBindingCondition
   |  |           |  |              |  |        |        +- T-let
   |  |           |  |              |  |        |        +- Pattern
   |  |           |  |              |  |        |        |  +- IdentifierPattern
   |  |           |  |              |  |        |        |     +- Identifier
   |  |           |  |              |  |        |        |        +- T-Identifier
   |  |           |  |              |  |        |        +- Initializer
   |  |           |  |              |  |        |           +- T-eq
   |  |           |  |              |  |        |           +- Expression
   |  |           |  |              |  |        |              +- PrefixExpression
   |  |           |  |              |  |        |                 +- PostfixExpression
   |  |           |  |              |  |        |                    +- PostfixExpression
   |  |           |  |              |  |        |                    |  +- PrimaryExpression
   |  |           |  |              |  |        |                    |     +- Identifier
   |  |           |  |              |  |        |                    |        +- T-Identifier
   |  |           |  |              |  |        |                    +- T-dot
   |  |           |  |              |  |        |                    +- Identifier
   |  |           |  |              |  |        |                       +- T-Identifier
   |  |           |  |              |  |        +- CodeBlock
   |  |           |  |              |  |           +- T-lbrace
   |  |           |  |              |  |           +- Statements
   |  |           |  |              |  |           |  +- Statement
   |  |           |  |              |  |           |  |  +- ControlTransferStatement
   |  |           |  |              |  |           |  |     +- ReturnStatement
   |  |           |  |              |  |           |  |        +- T-return
   |  |           |  |              |  |           |  |        +- Expression
   |  |           |  |              |  |           |  |           +- PrefixExpression
   |  |           |  |              |  |           |  |              +- PostfixExpression
   |  |           |  |              |  |           |  |                 +- PostfixExpression
   |  |           |  |              |  |           |  |                 |  +- PrimaryExpression
   |  |           |  |              |  |           |  |                 |     +- Identifier
   |  |           |  |              |  |           |  |                 |        +- T-Identifier
   |  |           |  |              |  |           |  |                 +- PostfixOperator
   |  |           |  |              |  |           |  |                    +- Operator
   |  |           |  |              |  |           |  |                       +- OperatorHead
   |  |           |  |              |  |           |  |                          +- T-OperatorHead
   |  |           |  |              |  |           |  +- Statement
   |  |           |  |              |  |           |     +- Expression
   |  |           |  |              |  |           |        +- PrefixExpression
   |  |           |  |              |  |           |           +- PostfixExpression
   |  |           |  |              |  |           |              +- PrimaryExpression
   |  |           |  |              |  |           |                 +- Identifier
   |  |           |  |              |  |           |                    +- T-Identifier
   |  |           |  |              |  |           +- T-rbrace
   |  |           |  |              |  +- Statement
   |  |           |  |              |     +- ControlTransferStatement
   |  |           |  |              |        +- ReturnStatement
   |  |           |  |              |           +- T-return
   |  |           |  |              |           +- Expression
   |  |           |  |              |              +- PrefixExpression
   |  |           |  |              |                 +- PostfixExpression
   |  |           |  |              |                    +- PrimaryExpression
   |  |           |  |              |                       +- Identifier
   |  |           |  |              |                          +- T-Identifier
   |  |           |  |              +- T-rbrace
   |  |           |  +- ExtensionMember
   |  |           |  |  +- Declaration
   |  |           |  |     +- FunctionDeclaration
   |  |           |  |        +- FunctionHead
   |  |           |  |        |  +- Attributes
   |  |           |  |        |  |  +- Attribute
   |  |           |  |        |  |     +- T-at-symbol
   |  |           |  |        |  |     +- AttributeName
   |  |           |  |        |  |        +- Identifier
   |  |           |  |        |  |           +- T-Identifier
   |  |           |  |        |  +- DeclarationModifiers
   |  |           |  |        |  |  +- DeclarationModifier
   |  |           |  |        |  |     +- AccessLevelModifier
   |  |           |  |        |  |        +- T-public
   |  |           |  |        |  +- T-func
   |  |           |  |        +- FunctionName
   |  |           |  |        |  +- Identifier
   |  |           |  |        |     +- T-Identifier
   |  |           |  |        +- FunctionSignature
   |  |           |  |        |  +- ParameterClause
   |  |           |  |        |  |  +- T-lparen
   |  |           |  |        |  |  +- ParameterList
   |  |           |  |        |  |  |  +- Parameter
   |  |           |  |        |  |  |     +- LocalParameterName
   |  |           |  |        |  |  |     |  +- Identifier
   |  |           |  |        |  |  |     |     +- T-Identifier
   |  |           |  |        |  |  |     +- TypeAnnotation
   |  |           |  |        |  |  |        +- T-colon
   |  |           |  |        |  |  |        +- SType
   |  |           |  |        |  |  |           +- TypeIdentifier
   |  |           |  |        |  |  |              +- TypeName
   |  |           |  |        |  |  |                 +- Identifier
   |  |           |  |        |  |  |                    +- T-Identifier
   |  |           |  |        |  |  +- T-rparen
   |  |           |  |        |  +- FunctionResult
   |  |           |  |        |     +- T-rarrow
   |  |           |  |        |     +- SType
   |  |           |  |        |        +- TypeIdentifier
   |  |           |  |        |           +- TypeName
   |  |           |  |        |              +- Identifier
   |  |           |  |        |                 +- T-Identifier
   |  |           |  |        +- FunctionBody
   |  |           |  |           +- CodeBlock
   |  |           |  |              +- T-lbrace
   |  |           |  |              +- Statements
   |  |           |  |              |  +- Statement
   |  |           |  |              |  |  +- Expression
   |  |           |  |              |  |     +- PrefixExpression
   |  |           |  |              |  |        +- PostfixExpression
   |  |           |  |              |  |           +- PostfixExpression
   |  |           |  |              |  |           |  +- PostfixExpression
   |  |           |  |              |  |           |  |  +- PostfixExpression
   |  |           |  |              |  |           |  |  |  +- PrimaryExpression
   |  |           |  |              |  |           |  |  |     +- Identifier
   |  |           |  |              |  |           |  |  |        +- T-Identifier
   |  |           |  |              |  |           |  |  +- T-dot
   |  |           |  |              |  |           |  |  +- Identifier
   |  |           |  |              |  |           |  |     +- T-Identifier
   |  |           |  |              |  |           |  +- T-dot
   |  |           |  |              |  |           |  +- Identifier
   |  |           |  |              |  |           |     +- T-Identifier
   |  |           |  |              |  |           +- FunctionCallArgumentClause
   |  |           |  |              |  |              +- T-lparen
   |  |           |  |              |  |              +- FunctionCallArgumentList
   |  |           |  |              |  |              |  +- FunctionCallArgument
   |  |           |  |              |  |              |     +- Expression
   |  |           |  |              |  |              |        +- PrefixExpression
   |  |           |  |              |  |              |           +- PostfixExpression
   |  |           |  |              |  |              |              +- PrimaryExpression
   |  |           |  |              |  |              |                 +- Identifier
   |  |           |  |              |  |              |                    +- T-Identifier
   |  |           |  |              |  |              +- T-rparen
   |  |           |  |              |  +- Statement
   |  |           |  |              |     +- ControlTransferStatement
   |  |           |  |              |        +- ReturnStatement
   |  |           |  |              |           +- T-return
   |  |           |  |              |           +- Expression
   |  |           |  |              |              +- PrefixExpression
   |  |           |  |              |                 +- PostfixExpression
   |  |           |  |              |                    +- PostfixExpression
   |  |           |  |              |                    |  +- PostfixExpression
   |  |           |  |              |                    |  |  +- PrimaryExpression
   |  |           |  |              |                    |  |     +- Identifier
   |  |           |  |              |                    |  |        +- T-Identifier
   |  |           |  |              |                    |  +- T-dot
   |  |           |  |              |                    |  +- Identifier
   |  |           |  |              |                    |     +- T-Identifier
   |  |           |  |              |                    +- T-dot
   |  |           |  |              |                    +- Identifier
   |  |           |  |              |                       +- T-Identifier
   |  |           |  |              +- T-rbrace
   |  |           |  +- ExtensionMember
   |  |           |     +- Declaration
   |  |           |        +- FunctionDeclaration
   |  |           |           +- FunctionHead
   |  |           |           |  +- Attributes
   |  |           |           |  |  +- Attribute
   |  |           |           |  |     +- T-at-symbol
   |  |           |           |  |     +- AttributeName
   |  |           |           |  |        +- Identifier
   |  |           |           |  |           +- T-Identifier
   |  |           |           |  +- DeclarationModifiers
   |  |           |           |  |  +- DeclarationModifier
   |  |           |           |  |     +- AccessLevelModifier
   |  |           |           |  |        +- T-public
   |  |           |           |  +- T-func
   |  |           |           +- FunctionName
   |  |           |           |  +- Identifier
   |  |           |           |     +- T-Identifier
   |  |           |           +- FunctionSignature
   |  |           |           |  +- ParameterClause
   |  |           |           |  |  +- T-lparen
   |  |           |           |  |  +- ParameterList
   |  |           |           |  |  |  +- Parameter
   |  |           |           |  |  |     +- LocalParameterName
   |  |           |           |  |  |     |  +- Identifier
   |  |           |           |  |  |     |     +- T-Identifier
   |  |           |           |  |  |     +- TypeAnnotation
   |  |           |           |  |  |        +- T-colon
   |  |           |           |  |  |        +- SType
   |  |           |           |  |  |           +- TypeIdentifier
   |  |           |           |  |  |              +- TypeName
   |  |           |           |  |  |                 +- Identifier
   |  |           |           |  |  |                    +- T-Identifier
   |  |           |           |  |  +- T-rparen
   |  |           |           |  +- FunctionResult
   |  |           |           |     +- T-rarrow
   |  |           |           |     +- SType
   |  |           |           |        +- TypeIdentifier
   |  |           |           |           +- TypeName
   |  |           |           |              +- Identifier
   |  |           |           |                 +- T-Identifier
   |  |           |           +- FunctionBody
   |  |           |              +- CodeBlock
   |  |           |                 +- T-lbrace
   |  |           |                 +- Statements
   |  |           |                 |  +- Statement
   |  |           |                 |     +- ControlTransferStatement
   |  |           |                 |        +- ReturnStatement
   |  |           |                 |           +- T-return
   |  |           |                 |           +- Expression
   |  |           |                 |              +- PrefixExpression
   |  |           |                 |                 +- PostfixExpression
   |  |           |                 |                    +- PostfixExpression
   |  |           |                 |                    |  +- PrimaryExpression
   |  |           |                 |                    |     +- Identifier
   |  |           |                 |                    |        +- T-Identifier
   |  |           |                 |                    +- FunctionCallArgumentClause
   |  |           |                 |                       +- T-lparen
   |  |           |                 |                       +- FunctionCallArgumentList
   |  |           |                 |                       |  +- FunctionCallArgument
   |  |           |                 |                       |     +- Expression
   |  |           |                 |                       |        +- PrefixExpression
   |  |           |                 |                       |           +- PostfixExpression
   |  |           |                 |                       |              +- PostfixExpression
   |  |           |                 |                       |              |  +- PrimaryExpression
   |  |           |                 |                       |              |     +- Identifier
   |  |           |                 |                       |              |        +- T-Identifier
   |  |           |                 |                       |              +- FunctionCallArgumentClause
   |  |           |                 |                       |                 +- T-lparen
   |  |           |                 |                       |                 +- FunctionCallArgumentList
   |  |           |                 |                       |                 |  +- FunctionCallArgument
   |  |           |                 |                       |                 |  |  +- FunctionCallIdentifier
   |  |           |                 |                       |                 |  |  |  +- Identifier
   |  |           |                 |                       |                 |  |  |     +- T-Identifier
   |  |           |                 |                       |                 |  |  +- T-colon
   |  |           |                 |                       |                 |  |  +- Expression
   |  |           |                 |                       |                 |  |     +- PrefixExpression
   |  |           |                 |                       |                 |  |        +- PostfixExpression
   |  |           |                 |                       |                 |  |           +- PrimaryExpression
   |  |           |                 |                       |                 |  |              +- Identifier
   |  |           |                 |                       |                 |  |                 +- T-Identifier
   |  |           |                 |                       |                 |  +- T-comma
   |  |           |                 |                       |                 |  +- FunctionCallArgument
   |  |           |                 |                       |                 |     +- FunctionCallIdentifier
   |  |           |                 |                       |                 |     |  +- Identifier
   |  |           |                 |                       |                 |     |     +- T-Identifier
   |  |           |                 |                       |                 |     +- T-colon
   |  |           |                 |                       |                 |     +- Expression
   |  |           |                 |                       |                 |        +- PrefixExpression
   |  |           |                 |                       |                 |           +- PostfixExpression
   |  |           |                 |                       |                 |              +- PrimaryExpression
   |  |           |                 |                       |                 |                 +- Identifier
   |  |           |                 |                       |                 |                    +- T-Identifier
   |  |           |                 |                       |                 +- T-rparen
   |  |           |                 |                       +- T-rparen
   |  |           |                 +- T-rbrace
   |  |           +- T-rbrace
   |  +- Statement
   |  |  +- Expression
   |  |     +- PrefixExpression
   |  |        +- PostfixExpression
   |  |           +- PrimaryExpression
   |  |              +- Keyword
   |  |                 +- T-extension
   |  +- Statement
   |  |  +- Expression
   |  |     +- PrefixExpression
   |  |        +- PostfixExpression
   |  |           +- PrimaryExpression
   |  |              +- Identifier
   |  |                 +- T-Identifier
   |  +- Statement
   |  |  +- Expression
   |  |     +- PrefixExpression
   |  |        +- PostfixExpression
   |  |           +- PrimaryExpression
   |  |              +- ClosureExpression
   |  |                 +- T-lbrace
   |  |                 +- Statements
   |  |                 |  +- Statement
   |  |                 |  |  +- Expression
   |  |                 |  |     +- PrefixExpression
   |  |                 |  |        +- PostfixExpression
   |  |                 |  |           +- PrimaryExpression
   |  |                 |  |              +- Keyword
   |  |                 |  |                 +- T-internal
   |  |                 |  +- Statement
   |  |                 |  |  +- Expression
   |  |                 |  |     +- PrefixExpression
   |  |                 |  |        +- PostfixExpression
   |  |                 |  |           +- PrimaryExpression
   |  |                 |  |              +- Identifier
   |  |                 |  |                 +- ContextSensitiveKeyword
   |  |                 |  |                    +- T-mutating
   |  |                 |  +- Statement
   |  |                 |  |  +- Declaration
   |  |                 |  |     +- FunctionDeclaration
   |  |                 |  +- Statement
   |  |                 |  |  +- Declaration
   |  |                 |  |     +- FunctionDeclaration
   |  |                 |  |        +- Error
   |  |                 |  +- Statement
   |  |                 |  |  +- Expression
   |  |                 |  |     +- PrefixExpression
   |  |                 |  |        +- PostfixExpression
   |  |                 |  |           +- PrimaryExpression
   |  |                 |  |              +- Identifier
   |  |                 |  |                 +- T-Identifier
   |  |                 |  +- Statement
   |  |                 |  |  +- Expression
   |  |                 |  |     +- PrefixExpression
   |  |                 |  |        +- PostfixExpression
   |  |                 |  |           +- PrimaryExpression
   |  |                 |  +- Statement
   |  |                 |  |  +- Expression
   |  |                 |  |     +- PrefixExpression
   |  |                 |  |        +- PostfixExpression
   |  |                 |  |           +- PrimaryExpression
   |  |                 |  |              +- Error
   |  |                 |  +- Statement
   |  |                 |  |  +- Declaration
   |  |                 |  +- Statement
   |  |                 |  |  +- Declaration
   |  |                 |  |     +- Error
   |  |                 |  +- Statement
   |  |                 |  |  +- Expression
   |  |                 |  |     +- PrefixExpression
   |  |                 |  |        +- PostfixExpression
   |  |                 |  |           +- PrimaryExpression
   |  |                 |  |              +- Identifier
   |  |                 |  |                 +- T-Identifier
   |  |                 |  +- Statement
   |  |                 |  |  +- Expression
   |  |                 |  |     +- PrefixExpression
   |  |                 |  |        +- PostfixExpression
   |  |                 |  |           +- PrimaryExpression
   |  |                 |  |              +- Identifier
   |  |                 |  |                 +- T-Identifier
   |  |                 |  +- Statement
   |  |                 |  |  +- LabeledStatement
   |  |                 |  |     +- StatementLabel
   |  |                 |  |        +- LabelName
   |  |                 |  |        |  +- Identifier
   |  |                 |  |        |     +- T-Identifier
   |  |                 |  |        +- T-colon
   |  |                 |  +- Statement
   |  |                 |  |  +- Expression
   |  |                 |  |     +- PrefixExpression
   |  |                 |  |        +- PostfixExpression
   |  |                 |  |           +- PrimaryExpression
   |  |                 |  |              +- Identifier
   |  |                 |  |                 +- T-Identifier
   |  |                 |  +- Statement
   |  |                 |  |  +- Expression
   |  |                 |  |     +- PrefixExpression
   |  |                 |  |        +- PrefixOperator
   |  |                 |  |        |  +- Operator
   |  |                 |  |        |     +- OperatorHead
   |  |                 |  |        |        +- T-rarrow
   |  |                 |  |        +- PostfixExpression
   |  |                 |  |           +- PrimaryExpression
   |  |                 |  |              +- Identifier
   |  |                 |  |                 +- T-Identifier
   |  |                 |  +- Statement
   |  |                 |     +- Expression
   |  |                 |        +- PrefixExpression
   |  |                 |           +- PostfixExpression
   |  |                 |              +- PrimaryExpression
   |  |                 |                 +- Operator
   |  |                 |                    +- OperatorHead
   |  |                 |                       +- T-question
   |  |                 +- Error
   |  +- Statement
   |  |  +- Declaration
   |  +- Statement
   |  |  +- Declaration
   |  |     +- Error
   |  +- Statement
   |  |  +- Expression
   |  |     +- PrefixExpression
   |  |        +- PostfixExpression
   |  |           +- PrimaryExpression
   |  |              +- Identifier
   |  |                 +- T-Identifier
   |  +- Statement
   |  |  +- LabeledStatement
   |  |     +- StatementLabel
   |  |        +- LabelName
   |  |        |  +- Identifier
   |  |        |     +- T-Identifier
   |  |        +- T-colon
   |  +- Statement
   |  |  +- Expression
   |  |     +- PrefixExpression
   |  |        +- PostfixExpression
   |  |           +- PrimaryExpression
   |  |              +- TupleExpression
   |  |                 +- T-lparen
   |  |                 +- TupleElementList
   |  |                 |  +- TupleElement
   |  |                 |  |  +- Expression
   |  |                 |  |     +- PrefixExpression
   |  |                 |  |        +- PostfixExpression
   |  |                 |  |           +- PrimaryExpression
   |  |                 |  |              +- Identifier
   |  |                 |  |                 +- T-Identifier
   |  |                 |  +- T-comma
   |  |                 |  +- TupleElement
   |  |                 |     +- Expression
   |  |                 |        +- PrefixExpression
   |  |                 |           +- PostfixExpression
   |  |                 |              +- PrimaryExpression
   |  |                 |                 +- Identifier
   |  |                 |                    +- T-Identifier
   |  |                 +- T-rparen
   |  +- Statement
   |  |  +- Expression
   |  |     +- PrefixExpression
   |  |     +- Error
   |  +- Statement
   |     +- Expression
   |        +- PrefixExpression
   |           +- PostfixExpression
   |              +- PrimaryExpression
   |                 +- Identifier
   |                    +- T-Identifier
   +- Error
   +- Error
   +- Error
   +- Error
   +- Error
   +- Error
   +- Error
   +- Error
   +- Error
   +- Error
   +- Error
   +- Error
   +- Error
   +- Error
   +- Error
   +- Error
   +- Error
   +- Error
   +- Error
   +- Error
   +- Error
   +- Error
   +- Error
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