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rulego-team
31 lines
553 B
Go
31 lines
553 B
Go
package parser
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import (
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"github.com/expr-lang/expr"
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"github.com/expr-lang/expr/vm"
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)
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type Condition interface {
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Evaluate(env interface{}) bool
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}
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type ExprCondition struct {
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program *vm.Program
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}
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func NewExprCondition(expression string) (Condition, error) {
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program, err := expr.Compile(expression)
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if err != nil {
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return nil, err
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}
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return &ExprCondition{program: program}, nil
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}
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func (ec *ExprCondition) Evaluate(env interface{}) bool {
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result, err := expr.Run(ec.program, env)
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if err != nil {
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return false
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}
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return result.(bool)
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}
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