com.google.gwt.dev.jjs.ast.JInstanceOf Maven / Gradle / Ivy
/*
* 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;
/**
* Java instance of expression.
*/
public class JInstanceOf extends JExpression {
private JExpression expr;
private JReferenceType testType;
public JInstanceOf(SourceInfo info, JReferenceType testType, JExpression expression) {
super(info);
this.testType = testType;
this.expr = expression;
}
public JExpression getExpr() {
return expr;
}
public JReferenceType getTestType() {
return testType;
}
@Override
public JType getType() {
return JPrimitiveType.BOOLEAN;
}
@Override
public boolean hasSideEffects() {
return expr.hasSideEffects();
}
/**
* Resolve an external reference during AST stitching.
*/
public void resolve(JReferenceType newType) {
assert newType.replaces(testType);
testType = newType;
}
@Override
public void traverse(JVisitor visitor, Context ctx) {
if (visitor.visit(this, ctx)) {
expr = visitor.accept(expr);
}
visitor.endVisit(this, ctx);
}
}