| /* |
| * Copyright 2008 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.js.ast; |
| |
| import com.google.gwt.dev.jjs.SourceInfo; |
| |
| import java.util.ArrayList; |
| import java.util.Iterator; |
| import java.util.List; |
| |
| /** |
| * A JavaScript <code>var</code> statement. |
| */ |
| public class JsVars extends JsStatement implements Iterable<JsVars.JsVar> { |
| |
| /** |
| * A var declared using the JavaScript <code>var</code> statement. |
| */ |
| public static class JsVar extends JsNode implements HasName { |
| |
| private JsExpression initExpr; |
| |
| private final JsName name; |
| |
| public JsVar(SourceInfo sourceInfo, JsName name) { |
| super(sourceInfo); |
| this.name = name; |
| } |
| |
| public JsExpression getInitExpr() { |
| return initExpr; |
| } |
| |
| public JsName getName() { |
| return name; |
| } |
| |
| public void setInitExpr(JsExpression initExpr) { |
| this.initExpr = initExpr; |
| } |
| |
| public void traverse(JsVisitor v, JsContext ctx) { |
| if (v.visit(this, ctx)) { |
| if (initExpr != null) { |
| initExpr = v.accept(initExpr); |
| } |
| } |
| v.endVisit(this, ctx); |
| } |
| } |
| |
| private final List<JsVar> vars = new ArrayList<JsVar>(); |
| |
| public JsVars(SourceInfo sourceInfo) { |
| super(sourceInfo); |
| } |
| |
| public void add(JsVar var) { |
| vars.add(var); |
| } |
| |
| public int getNumVars() { |
| return vars.size(); |
| } |
| |
| public boolean isEmpty() { |
| return vars.isEmpty(); |
| } |
| |
| // Iterator returns JsVar objects |
| public Iterator<JsVar> iterator() { |
| return vars.iterator(); |
| } |
| |
| public void traverse(JsVisitor v, JsContext ctx) { |
| if (v.visit(this, ctx)) { |
| v.acceptWithInsertRemove(vars); |
| } |
| v.endVisit(this, ctx); |
| } |
| } |