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/*
* 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);
}
}
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