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» Creating XML dump of the AST
< a
target="_blank"
href="https://github.com/pmd/pmd/blob/master/docs/pages/pmd/devdocs/experimental/ast_dump.md"
class="pull-right"
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>
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< h1 class = "post-title-main" > Creating XML dump of the AST< / h1 >
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< div class = "post-content" data-github-edit-url = "https://github.com/pmd/pmd/blob/master/docs/pages/pmd/devdocs/experimental/ast_dump.md" >
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< div class = "summary" > Creating a XML representation of the AST allows to analyze the AST with other tools.< / div >
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< div id = "inline-toc" > <!-- empty, move TOC here when screen size too small --> < / div >
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< h2 id = "command-line-usage" > Command line usage< / h2 >
< div class = "language-shell highlighter-rouge" > < div class = "highlight" > < pre class = "highlight" > < code > < span class = "nv" > $ < / span > run.sh ast-dump < span class = "nt" > --help< / span >
Usage: ast-dump < span class = "o" > [< / span > options]
Options:
< span class = "nt" > --encoding< / span > , < span class = "nt" > -e< / span >
Encoding of the < span class = "nb" > source < / span > file.
Default: UTF-8
< span class = "nt" > --file< / span >
The file to dump
< span class = "nt" > --format< / span > , < span class = "nt" > -f< / span >
The output format.
Default: xml
< span class = "nt" > --help< / span > , < span class = "nt" > -h< / span >
Display usage.
< span class = "nt" > --language< / span > , < span class = "nt" > -l< / span >
Specify the language to use.
Default: java
< span class = "nt" > --read-stdin< / span > , < span class = "nt" > -i< / span >
Read < span class = "nb" > source < / span > from standard input
Default: < span class = "nb" > false< / span >
< span class = "nt" > -P< / span >
Properties < span class = "k" > for < / span > the renderer.
Syntax: < span class = "nt" > -Pkey< / span > < span class = "o" > =< / span > value
Default: < span class = "o" > {}< / span >
Available languages: apex ecmascript java jsp modelica plsql pom scala text vf vm wsdl xml xsl
Available formats: xml XML format with the same structure as the one used < span class = "k" > in < / span > XPath
+ Properties
+ singleQuoteAttributes Use single quotes to delimit attribute values < span class = "o" > (< / span > default < span class = "nb" > true< / span > < span class = "o" > )< / span >
+ lineSeparator Line separator to use. The default is platform-specific. < span class = "o" > (< / span > default < span class = "se" > \n< / span > < span class = "o" > )< / span >
+ renderProlog True to output a prolog < span class = "o" > (< / span > default < span class = "nb" > true< / span > < span class = "o" > )< / span >
+ renderCommonAttributes True to render attributes like BeginLine, EndLine, etc. < span class = "o" > (< / span > default < span class = "nb" > false< / span > < span class = "o" > )< / span >
< / code > < / pre > < / div > < / div >
< h2 id = "example" > Example< / h2 >
< div class = "language-shell highlighter-rouge" > < div class = "highlight" > < pre class = "highlight" > < code > < span class = "nv" > $ < / span > < span class = "nb" > cat < / span > Foo.java
public class Foo < span class = "o" > {< / span >
int a< span class = "p" > ;< / span >
< span class = "o" > }< / span >
< span class = "nv" > $ < / span > run.sh ast-dump < span class = "nt" > --format< / span > xml < span class = "nt" > --language< / span > java < span class = "nt" > --file< / span > Foo.java < span class = "o" > > < / span > Foo.xml
< span class = "nt" > -------------------------------------------------------------------------------< / span >
This < span class = "nb" > command < / span > line utility is experimental. It might change at any < span class = "nb" > time < / span > without
prior notice.
< span class = "nt" > -------------------------------------------------------------------------------< / span >
< span class = "nv" > $ < / span > < span class = "nb" > cat < / span > Foo.xml
< ?xml < span class = "nv" > version< / span > < span class = "o" > =< / span > < span class = "s1" > '1.0'< / span > < span class = "nv" > encoding< / span > < span class = "o" > =< / span > < span class = "s1" > 'UTF-8'< / span > ?>
< CompilationUnit < span class = "nv" > Image< / span > < span class = "o" > =< / span > < span class = "s1" > ''< / span > < span class = "nv" > PackageName< / span > < span class = "o" > =< / span > < span class = "s1" > ''< / span > < span class = "nv" > declarationsAreInDefaultPackage< / span > < span class = "o" > =< / span > < span class = "s1" > 'true'< / span > < span class = "o" > > < / span >
< TypeDeclaration < span class = "nv" > Image< / span > < span class = "o" > =< / span > < span class = "s1" > ''< / span > < span class = "o" > > < / span >
< ClassOrInterfaceDeclaration < span class = "nv" > Abstract< / span > < span class = "o" > =< / span > < span class = "s1" > 'false'< / span > < span class = "nv" > BinaryName< / span > < span class = "o" > =< / span > < span class = "s1" > 'Foo'< / span > < span class = "nv" > Default< / span > < span class = "o" > =< / span > < span class = "s1" > 'false'< / span > < span class = "nv" > Final< / span > < span class = "o" > =< / span > < span class = "s1" > 'false'< / span > < span class = "nv" > Image< / span > < span class = "o" > =< / span > < span class = "s1" > 'Foo'< / span > < span class = "nv" > Interface< / span > < span class = "o" > =< / span > < span class = "s1" > 'false'< / span > < span class = "nv" > Local< / span > < span class = "o" > =< / span > < span class = "s1" > 'false'< / span > < span class = "nv" > Modifiers< / span > < span class = "o" > =< / span > < span class = "s1" > '1'< / span > < span class = "nv" > Native< / span > < span class = "o" > =< / span > < span class = "s1" > 'false'< / span > < span class = "nv" > Nested< / span > < span class = "o" > =< / span > < span class = "s1" > 'false'< / span > < span class = "nv" > PackagePrivate< / span > < span class = "o" > =< / span > < span class = "s1" > 'false'< / span > < span class = "nv" > Private< / span > < span class = "o" > =< / span > < span class = "s1" > 'false'< / span > < span class = "nv" > Protected< / span > < span class = "o" > =< / span > < span class = "s1" > 'false'< / span > < span class = "nv" > Public< / span > < span class = "o" > =< / span > < span class = "s1" > 'true'< / span > < span class = "nv" > SimpleName< / span > < span class = "o" > =< / span > < span class = "s1" > 'Foo'< / span > < span class = "nv" > Static< / span > < span class = "o" > =< / span > < span class = "s1" > 'false'< / span > < span class = "nv" > Strictfp< / span > < span class = "o" > =< / span > < span class = "s1" > 'false'< / span > < span class = "nv" > Synchronized< / span > < span class = "o" > =< / span > < span class = "s1" > 'false'< / span > < span class = "nv" > Transient< / span > < span class = "o" > =< / span > < span class = "s1" > 'false'< / span > < span class = "nv" > TypeKind< / span > < span class = "o" > =< / span > < span class = "s1" > 'CLASS'< / span > < span class = "nv" > Volatile< / span > < span class = "o" > =< / span > < span class = "s1" > 'false'< / span > < span class = "o" > > < / span >
< ClassOrInterfaceBody < span class = "nv" > AnonymousInnerClass< / span > < span class = "o" > =< / span > < span class = "s1" > 'false'< / span > < span class = "nv" > EnumChild< / span > < span class = "o" > =< / span > < span class = "s1" > 'false'< / span > < span class = "nv" > Image< / span > < span class = "o" > =< / span > < span class = "s1" > ''< / span > < span class = "o" > > < / span >
< ClassOrInterfaceBodyDeclaration < span class = "nv" > AnonymousInnerClass< / span > < span class = "o" > =< / span > < span class = "s1" > 'false'< / span > < span class = "nv" > EnumChild< / span > < span class = "o" > =< / span > < span class = "s1" > 'false'< / span > < span class = "nv" > Image< / span > < span class = "o" > =< / span > < span class = "s1" > ''< / span > < span class = "nv" > Kind< / span > < span class = "o" > =< / span > < span class = "s1" > 'FIELD'< / span > < span class = "o" > > < / span >
< FieldDeclaration < span class = "nv" > Abstract< / span > < span class = "o" > =< / span > < span class = "s1" > 'false'< / span > < span class = "nv" > AnnotationMember< / span > < span class = "o" > =< / span > < span class = "s1" > 'false'< / span > < span class = "nv" > Array< / span > < span class = "o" > =< / span > < span class = "s1" > 'false'< / span > < span class = "nv" > ArrayDepth< / span > < span class = "o" > =< / span > < span class = "s1" > '0'< / span > < span class = "nv" > Default< / span > < span class = "o" > =< / span > < span class = "s1" > 'false'< / span > < span class = "nv" > Final< / span > < span class = "o" > =< / span > < span class = "s1" > 'false'< / span > < span class = "nv" > Image< / span > < span class = "o" > =< / span > < span class = "s1" > ''< / span > < span class = "nv" > InterfaceMember< / span > < span class = "o" > =< / span > < span class = "s1" > 'false'< / span > < span class = "nv" > Modifiers< / span > < span class = "o" > =< / span > < span class = "s1" > '0'< / span > < span class = "nv" > Native< / span > < span class = "o" > =< / span > < span class = "s1" > 'false'< / span > < span class = "nv" > PackagePrivate< / span > < span class = "o" > =< / span > < span class = "s1" > 'true'< / span > < span class = "nv" > Private< / span > < span class = "o" > =< / span > < span class = "s1" > 'false'< / span > < span class = "nv" > Protected< / span > < span class = "o" > =< / span > < span class = "s1" > 'false'< / span > < span class = "nv" > Public< / span > < span class = "o" > =< / span > < span class = "s1" > 'false'< / span > < span class = "nv" > Static< / span > < span class = "o" > =< / span > < span class = "s1" > 'false'< / span > < span class = "nv" > Strictfp< / span > < span class = "o" > =< / span > < span class = "s1" > 'false'< / span > < span class = "nv" > Synchronized< / span > < span class = "o" > =< / span > < span class = "s1" > 'false'< / span > < span class = "nv" > SyntacticallyFinal< / span > < span class = "o" > =< / span > < span class = "s1" > 'false'< / span > < span class = "nv" > SyntacticallyPublic< / span > < span class = "o" > =< / span > < span class = "s1" > 'false'< / span > < span class = "nv" > SyntacticallyStatic< / span > < span class = "o" > =< / span > < span class = "s1" > 'false'< / span > < span class = "nv" > Transient< / span > < span class = "o" > =< / span > < span class = "s1" > 'false'< / span > < span class = "nv" > VariableName< / span > < span class = "o" > =< / span > < span class = "s1" > 'a'< / span > < span class = "nv" > Volatile< / span > < span class = "o" > =< / span > < span class = "s1" > 'false'< / span > < span class = "o" > > < / span >
< Type < span class = "nv" > Array< / span > < span class = "o" > =< / span > < span class = "s1" > 'false'< / span > < span class = "nv" > ArrayDepth< / span > < span class = "o" > =< / span > < span class = "s1" > '0'< / span > < span class = "nv" > ArrayType< / span > < span class = "o" > =< / span > < span class = "s1" > 'false'< / span > < span class = "nv" > Image< / span > < span class = "o" > =< / span > < span class = "s1" > ''< / span > < span class = "nv" > TypeImage< / span > < span class = "o" > =< / span > < span class = "s1" > 'int'< / span > < span class = "o" > > < / span >
< PrimitiveType < span class = "nv" > Array< / span > < span class = "o" > =< / span > < span class = "s1" > 'false'< / span > < span class = "nv" > ArrayDepth< / span > < span class = "o" > =< / span > < span class = "s1" > '0'< / span > < span class = "nv" > Boolean< / span > < span class = "o" > =< / span > < span class = "s1" > 'false'< / span > < span class = "nv" > Image< / span > < span class = "o" > =< / span > < span class = "s1" > 'int'< / span > />
< /Type>
< VariableDeclarator < span class = "nv" > Image< / span > < span class = "o" > =< / span > < span class = "s1" > ''< / span > < span class = "nv" > Initializer< / span > < span class = "o" > =< / span > < span class = "s1" > 'false'< / span > < span class = "nv" > Name< / span > < span class = "o" > =< / span > < span class = "s1" > 'a'< / span > < span class = "o" > > < / span >
< VariableDeclaratorId < span class = "nv" > Array< / span > < span class = "o" > =< / span > < span class = "s1" > 'false'< / span > < span class = "nv" > ArrayDepth< / span > < span class = "o" > =< / span > < span class = "s1" > '0'< / span > < span class = "nv" > ArrayType< / span > < span class = "o" > =< / span > < span class = "s1" > 'false'< / span > < span class = "nv" > ExceptionBlockParameter< / span > < span class = "o" > =< / span > < span class = "s1" > 'false'< / span > < span class = "nv" > ExplicitReceiverParameter< / span > < span class = "o" > =< / span > < span class = "s1" > 'false'< / span > < span class = "nv" > Field< / span > < span class = "o" > =< / span > < span class = "s1" > 'true'< / span > < span class = "nv" > Final< / span > < span class = "o" > =< / span > < span class = "s1" > 'false'< / span > < span class = "nv" > FormalParameter< / span > < span class = "o" > =< / span > < span class = "s1" > 'false'< / span > < span class = "nv" > Image< / span > < span class = "o" > =< / span > < span class = "s1" > 'a'< / span > < span class = "nv" > LambdaParameter< / span > < span class = "o" > =< / span > < span class = "s1" > 'false'< / span > < span class = "nv" > LocalVariable< / span > < span class = "o" > =< / span > < span class = "s1" > 'false'< / span > < span class = "nv" > ResourceDeclaration< / span > < span class = "o" > =< / span > < span class = "s1" > 'false'< / span > < span class = "nv" > TypeInferred< / span > < span class = "o" > =< / span > < span class = "s1" > 'false'< / span > < span class = "nv" > VariableName< / span > < span class = "o" > =< / span > < span class = "s1" > 'a'< / span > />
< /VariableDeclarator>
< /FieldDeclaration>
< /ClassOrInterfaceBodyDeclaration>
< /ClassOrInterfaceBody>
< /ClassOrInterfaceDeclaration>
< /TypeDeclaration>
< /CompilationUnit>
< span class = "nv" > $ < / span > xmlstarlet < span class = "k" > select< / span > < span class = "nt" > -t< / span > < span class = "nt" > -c< / span > < span class = "s2" > "//VariableDeclaratorId[@VariableName='a']"< / span > Foo.xml
< VariableDeclaratorId < span class = "nv" > Array< / span > < span class = "o" > =< / span > < span class = "s2" > "false"< / span > < span class = "nv" > ArrayDepth< / span > < span class = "o" > =< / span > < span class = "s2" > "0"< / span > < span class = "nv" > ArrayType< / span > < span class = "o" > =< / span > < span class = "s2" > "false"< / span > < span class = "nv" > ExceptionBlockParameter< / span > < span class = "o" > =< / span > < span class = "s2" > "false"< / span > < span class = "nv" > ExplicitReceiverParameter< / span > < span class = "o" > =< / span > < span class = "s2" > "false"< / span > < span class = "nv" > Field< / span > < span class = "o" > =< / span > < span class = "s2" > "true"< / span > < span class = "nv" > Final< / span > < span class = "o" > =< / span > < span class = "s2" > "false"< / span > < span class = "nv" > FormalParameter< / span > < span class = "o" > =< / span > < span class = "s2" > "false"< / span > < span class = "nv" > Image< / span > < span class = "o" > =< / span > < span class = "s2" > "a"< / span > < span class = "nv" > LambdaParameter< / span > < span class = "o" > =< / span > < span class = "s2" > "false"< / span > < span class = "nv" > LocalVariable< / span > < span class = "o" > =< / span > < span class = "s2" > "false"< / span > < span class = "nv" > ResourceDeclaration< / span > < span class = "o" > =< / span > < span class = "s2" > "false"< / span > < span class = "nv" > TypeInferred< / span > < span class = "o" > =< / span > < span class = "s2" > "false"< / span > < span class = "nv" > VariableName< / span > < span class = "o" > =< / span > < span class = "s2" > "a"< / span > />
< / code > < / pre > < / div > < / div >
< p > This example uses < a href = "http://xmlstar.sourceforge.net/" > xmlstarlet< / a > to query the xml document for any variables/fields
with the name “a”.< / p >
< h2 id = "programmatic-usage" > Programmatic usage< / h2 >
< p > Just parse your source code to get the AST and pass it on to the < code class = "language-plaintext highlighter-rouge" > XmlTreeRenderer< / code > :< / p >
< div class = "language-java highlighter-rouge" > < div class = "highlight" > < pre class = "highlight" > < code > < span class = "kn" > import< / span > < span class = "nn" > java.io.IOException< / span > < span class = "o" > ;< / span >
< span class = "kn" > import< / span > < span class = "nn" > java.io.StringReader< / span > < span class = "o" > ;< / span >
< span class = "kn" > import< / span > < span class = "nn" > net.sourceforge.pmd.lang.LanguageRegistry< / span > < span class = "o" > ;< / span >
< span class = "kn" > import< / span > < span class = "nn" > net.sourceforge.pmd.lang.LanguageVersionHandler< / span > < span class = "o" > ;< / span >
< span class = "kn" > import< / span > < span class = "nn" > net.sourceforge.pmd.lang.Parser< / span > < span class = "o" > ;< / span >
< span class = "kn" > import< / span > < span class = "nn" > net.sourceforge.pmd.lang.ast.Node< / span > < span class = "o" > ;< / span >
< span class = "kn" > import< / span > < span class = "nn" > net.sourceforge.pmd.util.treeexport.XmlTreeRenderer< / span > < span class = "o" > ;< / span >
< span class = "kd" > public< / span > < span class = "kd" > class< / span > < span class = "nc" > TreeExport< / span > < span class = "o" > {< / span >
< span class = "kd" > public< / span > < span class = "kd" > static< / span > < span class = "kt" > void< / span > < span class = "nf" > main< / span > < span class = "o" > (< / span > < span class = "nc" > String< / span > < span class = "o" > []< / span > < span class = "n" > args< / span > < span class = "o" > )< / span > < span class = "kd" > throws< / span > < span class = "nc" > IOException< / span > < span class = "o" > {< / span >
< span class = "nc" > LanguageVersionHandler< / span > < span class = "n" > java< / span > < span class = "o" > =< / span > < span class = "nc" > LanguageRegistry< / span > < span class = "o" > .< / span > < span class = "na" > getLanguage< / span > < span class = "o" > (< / span > < span class = "s" > "Java"< / span > < span class = "o" > ).< / span > < span class = "na" > getDefaultVersion< / span > < span class = "o" > ().< / span > < span class = "na" > getLanguageVersionHandler< / span > < span class = "o" > ();< / span >
< span class = "nc" > Parser< / span > < span class = "n" > parser< / span > < span class = "o" > =< / span > < span class = "n" > java< / span > < span class = "o" > .< / span > < span class = "na" > getParser< / span > < span class = "o" > (< / span > < span class = "n" > java< / span > < span class = "o" > .< / span > < span class = "na" > getDefaultParserOptions< / span > < span class = "o" > ());< / span >
< span class = "nc" > Node< / span > < span class = "n" > root< / span > < span class = "o" > =< / span > < span class = "n" > parser< / span > < span class = "o" > .< / span > < span class = "na" > parse< / span > < span class = "o" > (< / span > < span class = "s" > "foo"< / span > < span class = "o" > ,< / span > < span class = "k" > new< / span > < span class = "nc" > StringReader< / span > < span class = "o" > (< / span > < span class = "s" > "class Foo {}"< / span > < span class = "o" > ));< / span >
< span class = "k" > new< / span > < span class = "nf" > XmlTreeRenderer< / span > < span class = "o" > ().< / span > < span class = "na" > renderSubtree< / span > < span class = "o" > (< / span > < span class = "n" > root< / span > < span class = "o" > ,< / span > < span class = "nc" > System< / span > < span class = "o" > .< / span > < span class = "na" > out< / span > < span class = "o" > );< / span >
< span class = "o" > }< / span >
< span class = "o" > }< / span >
< / code > < / pre > < / div > < / div >
< div class = "tags" >
< b > Tags: < / b >
< a href = "tag_devdocs.html" class = "btn btn-default navbar-btn cursorNorm" role = "button" > devdocs< / a >
< / div >
< / div >
< footer >
2022-03-24 11:42:13 +00:00
< hr / >
< div >
This documentation is written in markdown. < br / >
If there is something missing or can be improved, edit this page on
github and create a PR:
< a
target="_blank"
href="https://github.com/pmd/pmd/blob/master/docs/pages/pmd/devdocs/experimental/ast_dump.md"
role="button"
>< i class = "fa fa-github fa-lg" > < / i > Edit on GitHub< /a
>
< / div >
< hr / >
< div class = "row" >
< div class = "col-lg-12 footer" >
© 2022 PMD Open Source Project. All rights
reserved. < br / >
< span > Page last updated:< / span >
2022-09-24 16:11:17 +00:00
January 17, 2020 (6.21.0)< br / > Site last generated: Sep 24, 2022 < br / >
2022-03-24 11:42:13 +00:00
< p >
< img src = "images/pmd-logo-small.png" alt = "Company
logo"/>
< / p >
< / div >
< / div >
2020-11-14 09:20:07 +00:00
< / footer >
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< / div >
<!-- /.row -->
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< / div >
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<!-- /.container -->
< / div >
<!-- Sticky TOC column -->
< div class = "toc-col" >
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< div id = "toc" > < / div >
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< / div >
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<!-- /.toc - container - wrapper -->
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< / div >
< / div >
< / body >
< / html >
