| /* |
| * Copyright 2007 Google Inc. |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); you may not |
| * use this file except in compliance with the License. You may obtain a copy of |
| * the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT |
| * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the |
| * License for the specific language governing permissions and limitations under |
| * the License. |
| */ |
| package com.google.gwt.dev.jjs.ast; |
| |
| import com.google.gwt.dev.jjs.SourceInfo; |
| |
| import java.io.Serializable; |
| import java.util.List; |
| |
| /** |
| * Java try statement. |
| */ |
| public class JTryStatement extends JStatement { |
| |
| /** |
| * Represents the catch clause parts of the try statement. |
| */ |
| public static class CatchClause implements Serializable { |
| private final List<JType> catchTypes; |
| private final JLocalRef arg; |
| private final JBlock block; |
| |
| public CatchClause(List<JType> catchTypes, JLocalRef arg, JBlock block) { |
| this.catchTypes = catchTypes; |
| this.arg = arg; |
| this.block = block; |
| } |
| |
| public List<JType> getTypes() { |
| return catchTypes; |
| } |
| |
| public JLocalRef getArg() { |
| return arg; |
| } |
| |
| public JBlock getBlock() { |
| return block; |
| } |
| } |
| |
| private final List<CatchClause> catchClauses; |
| private final JBlock finallyBlock; |
| private final JBlock tryBlock; |
| |
| /** |
| * Construct a Java try statement. |
| * |
| * Parameters catchTypes, catchArgs and catchBlocks must agree on size. Each element of each |
| * of these lists corresponds to a catch statement. |
| * |
| * @param info the source information. |
| * @param tryBlock the statement block inside the try construct. |
| * @param catchClauses each element of this list contains a catch clause. |
| * @param finallyBlock the statement block corresponding to the finally construct. |
| */ |
| public JTryStatement(SourceInfo info, JBlock tryBlock, List<CatchClause> catchClauses, |
| JBlock finallyBlock) { |
| super(info); |
| this.tryBlock = tryBlock; |
| this.catchClauses = catchClauses; |
| this.finallyBlock = finallyBlock; |
| } |
| |
| public List<CatchClause> getCatchClauses() { |
| return catchClauses; |
| } |
| |
| public JBlock getFinallyBlock() { |
| return finallyBlock; |
| } |
| |
| public JBlock getTryBlock() { |
| return tryBlock; |
| } |
| |
| @Override |
| public void traverse(JVisitor visitor, Context ctx) { |
| if (visitor.visit(this, ctx)) { |
| visitor.accept(tryBlock); |
| |
| for (CatchClause clause : catchClauses) { |
| visitor.accept(clause.getArg()); |
| visitor.accept(clause.getBlock()); |
| } |
| // TODO: normalize this so it's never null? |
| if (finallyBlock != null) { |
| visitor.accept(finallyBlock); |
| } |
| } |
| visitor.endVisit(this, ctx); |
| } |
| } |