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.

        this.javaFile = javaFile;
    }


    // use ASTParse to parse string
    public void parse() throws IOException {
        final ASTParser parser = ASTParser.newParser(AST.JLS3);
        parser.setSource(readFileToString().toCharArray());
        parser.setKind(ASTParser.K_COMPILATION_UNIT);


        // For now we only care about the package, parse more data as need
        // arises
        final CompilationUnit cu = (CompilationUnit) parser.createAST(null);
        javaPackage = cu.getPackage();
    }

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    public char[] getContents() {
      StringBuilder bs = new StringBuilder();
      
      bs
          .append("package snippet;import java.io.PrintWriter;");
      ASTParser newParser = ASTParser.newParser(AST.JLS3);
      newParser.setSource(str.toCharArray());
      StringBuilder bls=new StringBuilder(str);
      CompilationUnit createAST = (CompilationUnit) newParser.createAST(null);
      //ArrayList<String> results = new ArrayList<String>();
      for (Object n : createAST.imports()) {
        ImportDeclaration decl = (ImportDeclaration) n;
        String name = decl.getName().getFullyQualifiedName();
        if (decl.isOnDemand()) {

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  }


  protected String[] getImports() {
    String snippet = getSourceViewer().getDocument().get();
    ASTParser newParser = ASTParser.newParser(AST.JLS3);
    newParser.setSource(snippet.toCharArray());
    CompilationUnit createAST = (CompilationUnit) newParser.createAST(null);
    ArrayList<String> results = new ArrayList<String>();
    for (Object n : createAST.imports()) {
      ImportDeclaration decl = (ImportDeclaration) n;
      String name = decl.getName().getFullyQualifiedName();
      if (decl.isOnDemand()) {

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    return null;
  }
  
  private void goThroughClass(ICompilationUnit ClassContent, final String contextTypeId) {
    ASTParser parser = ASTParser.newParser(AST.JLS3);
    parser.setSource(ClassContent);
    parser.setKind(ASTParser.K_COMPILATION_UNIT);
    final CompilationUnit cu = (CompilationUnit) parser.createAST(null);
    cu.accept(new ASTVisitor() {
      private boolean parameter = false;
      private String paramName = "";
      public void endVisit(FieldDeclaration node) {
        paramName = "";

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      // create AST
      try
      {
        // use the parser directly, the use of static shared classes don't work with multipage editor
        ASTParser parser = ASTParser.newParser(AST.JLS3);
        parser.setResolveBindings(true);
        parser.setStatementsRecovery(true);
        parser.setBindingsRecovery(true);
        parser.setSource(input);
        
        CompilationUnit astRoot = (CompilationUnit)parser.createAST(monitor);
        
        if (astRoot != null && !monitor.isCanceled()) {
          Object[] listeners;
          synchronized (PartListenerGroup.this) {
            listeners= fAstListeners.getListeners();

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    }
    return completionList;
  }


  private void goThroughClass(String ClassContent) {
    ASTParser parser = ASTParser.newParser(AST.JLS3);
    parser.setSource(ClassContent.toCharArray());
    parser.setKind(ASTParser.K_COMPILATION_UNIT);
    final CompilationUnit cu = (CompilationUnit) parser.createAST(null);
    cu.accept(new ASTVisitor() {


      private String elNodeName;
      private boolean intoEL;

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    }
    return completionList;
  }


  private void goThroughClass(String ClassContent) {
    ASTParser parser = ASTParser.newParser(AST.JLS3);
    parser.setSource(ClassContent.toCharArray());
    parser.setKind(ASTParser.K_COMPILATION_UNIT);
    final CompilationUnit cu = (CompilationUnit) parser.createAST(null);
    cu.accept(new ASTVisitor() {


      private String elNodeName;
      private boolean intoEL;
      private boolean definedId;

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      for (IPackageFragment packageFragment : project
          .getPackageFragments()) {
        if (packageFragment.getKind() == IPackageFragmentRoot.K_SOURCE) {
          for (ICompilationUnit compilationUnit : packageFragment
              .getCompilationUnits()) {
            ASTParser parser = ASTParser.newParser(AST.JLS4);
            parser.setKind(ASTParser.K_COMPILATION_UNIT);
            parser.setSource(compilationUnit);
            // a switch for turning on/off resolve bindings
            parser.setResolveBindings(ifBindings);
            parser.createAST(null).accept(this);
          }
        }
      }
    }
    return all;

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      for (IPackageFragment packageFragment : project
          .getPackageFragments()) {
        if (packageFragment.getKind() == IPackageFragmentRoot.K_SOURCE) {
          for (ICompilationUnit compilationUnit : packageFragment
              .getCompilationUnits()) {
            ASTParser parser = ASTParser.newParser(AST.JLS4);
            parser.setKind(ASTParser.K_COMPILATION_UNIT);
            parser.setSource(compilationUnit);
            // a switch for turning on/off resolve bindings
            parser.setResolveBindings(ifBindings);
            parser.createAST(null).accept(this);
          }
        }
      }
    }
  }

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   * 
   * @param unit
   * @return
   */
  public static CompilationUnit parse(ICompilationUnit iUnit) {
    ASTParser parser = ASTParser.newParser(AST.JLS4);
    parser.setKind(ASTParser.K_COMPILATION_UNIT);
    parser.setSource(iUnit);
    parser.setResolveBindings(true);
    Visitor visitor = new Visitor();
    CompilationUnit unit = (CompilationUnit) parser.createAST(null);
    unit.accept(visitor);
    return unit; // parse
  }

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