| /* |
| * 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.js; |
| |
| import com.google.gwt.dev.jjs.SourceInfo; |
| import com.google.gwt.dev.jjs.ast.Context; |
| import com.google.gwt.dev.jjs.ast.JExpression; |
| import com.google.gwt.dev.jjs.ast.JPrimitiveType; |
| import com.google.gwt.dev.jjs.ast.JType; |
| import com.google.gwt.dev.jjs.ast.JVisitor; |
| |
| import java.util.ArrayList; |
| |
| /** |
| * Represents multiple ordered expressions as a single compound expression. |
| */ |
| public class JMultiExpression extends JExpression { |
| |
| public ArrayList<JExpression> exprs = new ArrayList<JExpression>(); |
| |
| public JMultiExpression(SourceInfo info) { |
| super(info); |
| } |
| |
| public JType getType() { |
| int c = exprs.size(); |
| if (c == 0) { |
| return JPrimitiveType.VOID; |
| } else { |
| return exprs.get(c - 1).getType(); |
| } |
| } |
| |
| @Override |
| public boolean hasSideEffects() { |
| for (int i = 0; i < exprs.size(); ++i) { |
| JExpression expr = exprs.get(i); |
| if (expr.hasSideEffects()) { |
| return true; |
| } |
| } |
| return false; |
| } |
| |
| public void traverse(JVisitor visitor, Context ctx) { |
| if (visitor.visit(this, ctx)) { |
| visitor.acceptWithInsertRemove(exprs); |
| } |
| visitor.endVisit(this, ctx); |
| } |
| |
| } |