| /* |
| * Copyright 2000-2009 JetBrains s.r.o. |
| * |
| * 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.intellij.psi.impl; |
| |
| import com.intellij.psi.*; |
| import com.intellij.psi.util.ConstantExpressionUtil; |
| |
| import java.util.Set; |
| |
| /** |
| * @author ven |
| */ |
| public class PsiConstantEvaluationHelperImpl extends PsiConstantEvaluationHelper { |
| |
| @Override |
| public Object computeConstantExpression(PsiElement expression) { |
| return computeConstantExpression(expression, false); |
| } |
| |
| @Override |
| public Object computeConstantExpression(PsiElement expression, boolean throwExceptionOnOverflow) { |
| if (expression == null) return null; |
| ConstantExpressionEvaluator expressionEvaluator = LanguageConstantExpressionEvaluator.INSTANCE.forLanguage(expression.getLanguage()); |
| assert expressionEvaluator != null; |
| |
| return expressionEvaluator.computeConstantExpression(expression, throwExceptionOnOverflow); |
| } |
| |
| @Override |
| public Object computeExpression(final PsiExpression expression, final boolean throwExceptionOnOverflow, final AuxEvaluator auxEvaluator) { |
| if (expression == null) return null; |
| ConstantExpressionEvaluator expressionEvaluator = LanguageConstantExpressionEvaluator.INSTANCE.forLanguage(expression.getLanguage()); |
| assert expressionEvaluator != null; |
| return expressionEvaluator.computeExpression(expression, throwExceptionOnOverflow, auxEvaluator); |
| } |
| |
| public static Object computeCastTo(PsiExpression expression, PsiType castTo, Set<PsiVariable> visitedVars) { |
| Object value = JavaConstantExpressionEvaluator.computeConstantExpression(expression, visitedVars, false); |
| if (value == null) return null; |
| return ConstantExpressionUtil.computeCastTo(value, castTo); |
| } |
| } |