content: /*******************************************************************************
   * Copyright (c) 2000, 2009 IBM Corporation and others.
   * All rights reserved. This program and the accompanying materials
   * are made available under the terms of the Eclipse Public License v1.0
   * which accompanies this distribution, and is available at
   * http://www.eclipse.org/legal/epl-v10.html
   *
   * Contributors:
   *     IBM Corporation - initial API and implementation
   *******************************************************************************/
  package org.eclipse.wst.jsdt.internal.corext.refactoring.code;
  
  import java.util.List;
  
  import org.eclipse.wst.jsdt.core.dom.ASTNode;
  import org.eclipse.wst.jsdt.core.dom.ClassInstanceCreation;
  import org.eclipse.wst.jsdt.core.dom.IFunctionBinding;
  import org.eclipse.wst.jsdt.core.dom.ITypeBinding;
  import org.eclipse.wst.jsdt.core.dom.FunctionInvocation;
  import org.eclipse.wst.jsdt.core.dom.SimpleName;
  import org.eclipse.wst.jsdt.core.dom.SuperMethodInvocation;
  import org.eclipse.wst.jsdt.core.dom.ThrowStatement;
  import org.eclipse.wst.jsdt.internal.corext.refactoring.util.AbstractExceptionAnalyzer;
  
  /* package */ class ExceptionAnalyzer extends AbstractExceptionAnalyzer {
  
  	public static ITypeBinding[] perform(ASTNode[] statements) {
  		ExceptionAnalyzer analyzer= new ExceptionAnalyzer();
  		for (int i= 0; i < statements.length; i++) {
  			statements[i].accept(analyzer);
  		}
  		List exceptions= analyzer.getCurrentExceptions();
  		return (ITypeBinding[]) exceptions.toArray(new ITypeBinding[exceptions.size()]);
  	}
  
  	public boolean visit(ThrowStatement node) {
  		ITypeBinding exception= node.getExpression().resolveTypeBinding();
  		if (exception == null)		// Safety net for null bindings when compiling fails.
  			return true;
  		
  		addException(exception);
  		return true;
  	}
  	
  	public boolean visit(FunctionInvocation node) {
  		SimpleName name = node.getName();
  		if (name!=null)
  			return handleExceptions((IFunctionBinding)name.resolveBinding());
  		else
  			return true;
  	}
  	
  	public boolean visit(SuperMethodInvocation node) {
  		return handleExceptions((IFunctionBinding)node.getName().resolveBinding());
  	}
  	
  	public boolean visit(ClassInstanceCreation node) {
  		return handleExceptions(node.resolveConstructorBinding());
  	}
  	
  	private boolean handleExceptions(IFunctionBinding binding) {
  		if (binding == null)
  			return true;
  		addExceptions(null);
  		return true;
  	}	
  }
  