| /* |
| * 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; |
| |
| /** |
| * A <code>for</code> statement. If specified at all, the initializer part is either a declaration |
| * of one or more variables, in which case {@link #getInitVars()} is used, or an expression, in |
| * which case {@link #getInitExpr()} is used. In the latter case, the comma operator is often used |
| * to create a compound expression. |
| * |
| * <p> |
| * Note that any of the parts of the <code>for</code> loop header can be <code>null</code>, although |
| * the body will never be null. |
| */ |
| public class JsFor extends JsStatement { |
| |
| private JsStatement body; |
| |
| private JsExpression condition; |
| |
| private JsExpression incrExpr; |
| |
| private JsExpression initExpr; |
| |
| private JsVars initVars; |
| |
| public JsFor(SourceInfo sourceInfo) { |
| super(sourceInfo); |
| } |
| |
| public JsStatement getBody() { |
| return body; |
| } |
| |
| public JsExpression getCondition() { |
| return condition; |
| } |
| |
| public JsExpression getIncrExpr() { |
| return incrExpr; |
| } |
| |
| public JsExpression getInitExpr() { |
| return initExpr; |
| } |
| |
| public JsVars getInitVars() { |
| return initVars; |
| } |
| |
| @Override |
| public NodeKind getKind() { |
| return NodeKind.FOR; |
| } |
| |
| public void setBody(JsStatement body) { |
| this.body = body; |
| } |
| |
| public void setCondition(JsExpression condition) { |
| this.condition = condition; |
| } |
| |
| public void setIncrExpr(JsExpression incrExpr) { |
| this.incrExpr = incrExpr; |
| } |
| |
| public void setInitExpr(JsExpression initExpr) { |
| this.initExpr = initExpr; |
| } |
| |
| public void setInitVars(JsVars initVars) { |
| this.initVars = initVars; |
| } |
| |
| @Override |
| public void traverse(JsVisitor v, JsContext ctx) { |
| if (v.visit(this, ctx)) { |
| assert (!(initExpr != null && initVars != null)); |
| |
| if (initExpr != null) { |
| initExpr = v.accept(initExpr); |
| } else if (initVars != null) { |
| initVars = v.accept(initVars); |
| } |
| |
| if (condition != null) { |
| condition = v.accept(condition); |
| } |
| |
| if (incrExpr != null) { |
| incrExpr = v.accept(incrExpr); |
| } |
| body = v.accept(body); |
| } |
| v.endVisit(this, ctx); |
| } |
| } |