Examples of org.eclipse.jdt.core.dom.ASTParser

org.eclipse.jdt.core.dom.ASTParser
les JDK 1.0, 1.1, 1.2, 1.3, 1.4, 1.5, 1.6 parser.setSource(source); // In order to parse 1.5 code, some compiler options need to be set to 1.5 Map options = JavaCore.getOptions(); JavaCore.setComplianceOptions(JavaCore.VERSION_1_5, options); parser.setCompilerOptions(options); CompilationUnit result = (CompilationUnit) parser.createAST(null); Once a configured parser instance has been used to create an AST, the settings are automatically reset to their defaults, ready for the parser instance to be reused.

There are a number of configurable features:
- Source string from {@link #setSource(char[]) char[]}, {@link #setSource(ICompilationUnit) ICompilationUnit}, or {@link #setSource(IClassFile) IClassFile}, and limited to a specified {@linkplain #setSourceRange(int,int) subrange}.
- Whether {@linkplain #setResolveBindings(boolean) bindings} will be created.
- Which {@linkplain #setWorkingCopyOwner(WorkingCopyOwner) working copy owner} to use when resolving bindings.
- A hypothetical {@linkplain #setUnitName(String) compilation unit file name}and {@linkplain #setProject(IJavaProject) Java project}for locating a raw source string in the Java model (when resolving bindings)
- Which {@linkplain #setCompilerOptions(Map) compiler options}to use. This is especially important to use if the parsing/scanning of the source code requires a different version than the default of the workspace. For example, the workspace defaults are 1.4 and you want to create an AST for a source code that is using 1.5 constructs.
- Whether to parse just {@linkplain #setKind(int) an expression, statements,or body declarations} rather than an entire compilation unit.
- Whether to return a {@linkplain #setFocalPosition(int) abridged AST}focused on the declaration containing a given source position.
@since 3.0 @noinstantiate This class is not intended to be instantiated by clients.

            }
            monitor.worked(3);
            // If we have found the processed project, 
            if (javaProject != null) {
              // Then we parse the processed code section
              ASTParser parser = ASTParser.newParser(AST.JLS3);
              parser.setProject(javaProject);
              parser.setResolveBindings(true);
              char[] charArray = new char[buffer.length()];
              buffer.getChars(0, buffer.length(), charArray, 0);
              parser.setUnitName(javaProject.getElementName());
              parser.setSource(charArray);
              monitor.worked(4);
              CompilationUnit result = 
                (CompilationUnit)parser.createAST(null);
              monitor.worked(5);
              List<?> types = result.types();
              for(int i=0 ; i<types.size() ; i++) {
                ASTNode node = (ASTNode)types.get(i);
                if(node instanceof TypeDeclaration) {

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   * @param lwUnit
   *            the Java Model handle for the compilation unit
   * @return the root AST node of the parsed source
   */
  protected CompilationUnit parse(ICompilationUnit lwUnit) {
    ASTParser parser = ASTParser.newParser(AST.JLS3);
    parser.setKind(ASTParser.K_COMPILATION_UNIT);
    parser.setSource(lwUnit); // set source
    parser.setResolveBindings(true); // we need bindings later on
    return (CompilationUnit) parser.createAST(null /* IProgressMonitor */); // parse
  }

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        MessageDialog.openError(FindbugsPlugin.getShell(), "BugResolution failed.", e.getLocalizedMessage());
    }


    private CompilationUnit createWorkingCopy(ICompilationUnit unit) throws JavaModelException {
        unit.becomeWorkingCopy(monitor);
        ASTParser parser = ASTParser.newParser(AST.JLS3);
        parser.setSource(unit);
        parser.setResolveBindings(resolveBindings());
        return (CompilationUnit) parser.createAST(monitor);
    }

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   * @param lwUnit
   *            the Java Model handle for the compilation unit
   * @return the root AST node of the parsed source
   */
  protected CompilationUnit parse(ICompilationUnit lwUnit) {
    ASTParser parser = ASTParser.newParser(AST.JLS3);
    parser.setKind(ASTParser.K_COMPILATION_UNIT);
    parser.setSource(lwUnit); // set source
    parser.setResolveBindings(true); // we need bindings later on
    return (CompilationUnit) parser.createAST(null /* IProgressMonitor */); // parse
  }

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     * @return Abstract syntax tree representation.
     */
    public static ASTNode runJLS3Conversion( char[] source,
                                             boolean resolveBindings ) {
        // Create parser
        ASTParser parser;
        parser = ASTParser.newParser(AST.JLS3);
        parser.setSource(source);
        parser.setKind(ASTParser.K_COMPILATION_UNIT);
        parser.setResolveBindings(resolveBindings);
        // Parse compilation unit
        return parser.createAST(null);
    }

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     * @return Abstract syntax tree representation.
     */
    public static ASTNode runJLS3Conversion( char[] source,
                                             boolean resolveBindings ) {
        // Create parser
        ASTParser parser;
        parser = ASTParser.newParser(AST.JLS3);
        parser.setSource(source);
        parser.setKind(ASTParser.K_COMPILATION_UNIT);
        parser.setResolveBindings(resolveBindings);
        // Parse compilation unit
        return parser.createAST(null);
    }

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   @Override
   @SuppressWarnings({ "rawtypes", "unchecked" })
   public JavaSource<?> parse(final String data)
   {
      Document document = new Document(data);
      ASTParser parser = ASTParser.newParser(AST.JLS3);


      parser.setSource(document.get().toCharArray());
      Map options = JavaCore.getOptions();
      options.put(CompilerOptions.OPTION_Source, CompilerOptions.VERSION_1_5);
      parser.setCompilerOptions(options);


      parser.setResolveBindings(true);
      parser.setKind(ASTParser.K_COMPILATION_UNIT);
      CompilationUnit unit = (CompilationUnit) parser.createAST(null);
      unit.recordModifications();


      TypeDeclarationFinderVisitor visitor = new TypeDeclarationFinderVisitor();
      unit.accept(visitor);

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  private ASTNode parse(ICompilationUnit cu) throws JavaModelException {
    if (!cu.isConsistent()) {
      return cu.reconcile(AST.JLS4, true, null, monitor);
    } else {
      ASTParser parser = ASTParser.newParser(AST.JLS4);


      // TODO: it may be possible to convert SimpleNames and QualifiedNames to
      // fully qualified names, thereby avoiding full binding resolution.


      parser.setResolveBindings(true);
      parser.setSource(cu);


      monitor.subTask("Metagen: parsing AST of " + cu.getElementName());


      return parser.createAST(monitor);
    }


  }

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 * with JLS4 level.
 */
public org.eclipse.jdt.core.dom.CompilationUnit getAST3() throws JavaModelException {
  if (this.operation.astLevel != AST.JLS3 || !this.operation.resolveBindings) {
    // create AST (optionally resolving bindings)
    ASTParser parser = ASTParser.newParser(AST.JLS3);
    parser.setCompilerOptions(this.workingCopy.getJavaProject().getOptions(true));
    if (JavaProject.hasJavaNature(this.workingCopy.getJavaProject().getProject()))
      parser.setResolveBindings(true);
    parser.setStatementsRecovery((this.operation.reconcileFlags & ICompilationUnit.ENABLE_STATEMENTS_RECOVERY) != 0);
    parser.setBindingsRecovery((this.operation.reconcileFlags & ICompilationUnit.ENABLE_BINDINGS_RECOVERY) != 0);
    parser.setSource(this.workingCopy);
    parser.setIgnoreMethodBodies((this.operation.reconcileFlags & ICompilationUnit.IGNORE_METHOD_BODIES) != 0);
    return (org.eclipse.jdt.core.dom.CompilationUnit) parser.createAST(this.operation.progressMonitor);
  }
  return this.operation.makeConsistent(this.workingCopy);
}

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 * @since 3.7.1
 */
public org.eclipse.jdt.core.dom.CompilationUnit getAST4() throws JavaModelException {
  if (this.operation.astLevel != AST.JLS4 || !this.operation.resolveBindings) {
    // create AST (optionally resolving bindings)
    ASTParser parser = ASTParser.newParser(AST.JLS4);
    parser.setCompilerOptions(this.workingCopy.getJavaProject().getOptions(true));
    if (JavaProject.hasJavaNature(this.workingCopy.getJavaProject().getProject()))
      parser.setResolveBindings(true);
    parser.setStatementsRecovery((this.operation.reconcileFlags & ICompilationUnit.ENABLE_STATEMENTS_RECOVERY) != 0);
    parser.setBindingsRecovery((this.operation.reconcileFlags & ICompilationUnit.ENABLE_BINDINGS_RECOVERY) != 0);
    parser.setSource(this.workingCopy);
    parser.setIgnoreMethodBodies((this.operation.reconcileFlags & ICompilationUnit.IGNORE_METHOD_BODIES) != 0);
    return (org.eclipse.jdt.core.dom.CompilationUnit) parser.createAST(this.operation.progressMonitor);
  }
  return this.operation.makeConsistent(this.workingCopy);
}

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