Example usage for org.eclipse.jdt.core.dom ASTNode PROTECT

Introduction

In this page you can find the example usage for org.eclipse.jdt.core.dom ASTNode PROTECT.

Prototype

int PROTECT

To view the source code for org.eclipse.jdt.core.dom ASTNode PROTECT.

Click Source Link

Document

Flag constant (bit mask, value 4) indicating that this node is unmodifiable.

Usage

From source file:org.eclipse.che.jdt.javadoc.ASTProvider.java

License:Open Source License

/**
 * Creates a new compilation unit AST.//  ww  w.  jav  a 2s  .  c  o  m
 *
 * @param input the Java element for which to create the AST
 * @param progressMonitor the progress monitor
 * @return AST
 */
public static CompilationUnit createAST(final ITypeRoot input, final IProgressMonitor progressMonitor) {
    if (!hasSource(input))
        return null;

    if (progressMonitor != null && progressMonitor.isCanceled())
        return null;

    final ASTParser parser = ASTParser.newParser(SHARED_AST_LEVEL);
    parser.setResolveBindings(true);
    parser.setStatementsRecovery(SHARED_AST_STATEMENT_RECOVERY);
    parser.setBindingsRecovery(SHARED_BINDING_RECOVERY);
    parser.setSource(input);

    if (progressMonitor != null && progressMonitor.isCanceled())
        return null;

    final CompilationUnit root[] = new CompilationUnit[1];

    SafeRunner.run(new ISafeRunnable() {
        public void run() {
            try {
                if (progressMonitor != null && progressMonitor.isCanceled())
                    return;
                if (DEBUG)
                    System.err.println(getThreadName() + " - " + DEBUG_PREFIX + "creating AST for: "
                            + input.getElementName()); //$NON-NLS-1$ //$NON-NLS-2$
                root[0] = (CompilationUnit) parser.createAST(progressMonitor);

                //mark as unmodifiable
                ASTNodes.setFlagsToAST(root[0], ASTNode.PROTECT);
            } catch (OperationCanceledException ex) {
                return;
            }
        }

        public void handleException(Throwable ex) {
            LOG.error(ex.getMessage(), ex);
        }
    });
    return root[0];
}

---