| /* |
| * Copyright 2011 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; |
| |
| /** |
| * An AST node whose evaluation results in a runtime type reference of its node. |
| */ |
| public class JRuntimeTypeReference extends JExpression { |
| |
| private JReferenceType typeReference; |
| private JType expressionType; |
| |
| public JRuntimeTypeReference(SourceInfo info, JType expressionType, JReferenceType typeReference) { |
| super(info); |
| this.typeReference = typeReference; |
| this.expressionType = expressionType; |
| } |
| |
| @Override |
| public void traverse(JVisitor visitor, Context ctx) { |
| if (visitor.visit(this, ctx)) { |
| // Intentionally not visiting referenced node |
| } |
| visitor.endVisit(this, ctx); |
| } |
| |
| @Override |
| public boolean hasSideEffects() { |
| return false; |
| } |
| |
| @Override |
| public JType getType() { |
| // TODO(rluble): Here we should return Unknown type. JRuntimeTypeReference is an expression that |
| // will be replaces by the appropriate JLiteral (a handle to a type at runtime) during |
| // translation. At this point it is not known what is the actual type of literal as depending |
| // on compiler options it could be a integer or a string. |
| return expressionType; |
| } |
| |
| /** |
| * Returns the type this node is proxy for. |
| */ |
| public JReferenceType getReferredType() { |
| return typeReference; |
| } |
| } |