| /* |
| * 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.List; |
| |
| /** |
| * Represents the JavaScript new expression. |
| */ |
| public final class JsNew extends JsExpression implements HasArguments { |
| |
| private final List<JsExpression> args = new ArrayList<JsExpression>(); |
| |
| private JsExpression ctorExpr; |
| |
| public JsNew(SourceInfo sourceInfo, JsExpression ctorExpr) { |
| super(sourceInfo); |
| this.ctorExpr = ctorExpr; |
| } |
| |
| public List<JsExpression> getArguments() { |
| return args; |
| } |
| |
| public JsExpression getConstructorExpression() { |
| return ctorExpr; |
| } |
| |
| @Override |
| public boolean hasSideEffects() { |
| return true; |
| } |
| |
| @Override |
| public boolean isDefinitelyNotNull() { |
| // Sadly, in JS it can be! |
| // TODO: analysis could probably determine most instances cannot be null. |
| return false; |
| } |
| |
| @Override |
| public boolean isDefinitelyNull() { |
| return false; |
| } |
| |
| public void traverse(JsVisitor v, JsContext ctx) { |
| if (v.visit(this, ctx)) { |
| ctorExpr = v.accept(ctorExpr); |
| v.acceptList(args); |
| } |
| v.endVisit(this, ctx); |
| } |
| } |