| /* |
| * Copyright 2003-2013 Dave Griffith, Bas Leijdekkers |
| * |
| * 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.siyeh.ipp.constant; |
| |
| import com.intellij.openapi.util.text.StringUtil; |
| import com.intellij.psi.PsiElement; |
| import com.intellij.psi.PsiExpression; |
| import com.intellij.util.IncorrectOperationException; |
| import com.siyeh.IntentionPowerPackBundle; |
| import com.siyeh.ig.PsiReplacementUtil; |
| import com.siyeh.ig.psiutils.ExpressionUtils; |
| import com.siyeh.ipp.base.MutablyNamedIntention; |
| import com.siyeh.ipp.base.PsiElementPredicate; |
| import com.siyeh.ipp.psiutils.HighlightUtil; |
| import org.jetbrains.annotations.NonNls; |
| import org.jetbrains.annotations.NotNull; |
| |
| public class ConstantExpressionIntention extends MutablyNamedIntention { |
| |
| @Override |
| protected String getTextForElement(PsiElement element) { |
| final String text = HighlightUtil.getPresentableText(element); |
| return IntentionPowerPackBundle.message("constant.expression.intention.name", text); |
| } |
| |
| @Override |
| @NotNull |
| protected PsiElementPredicate getElementPredicate() { |
| return new ConstantExpressionPredicate(); |
| } |
| |
| @Override |
| public void processIntention(PsiElement element) throws IncorrectOperationException { |
| final PsiExpression expression = (PsiExpression)element; |
| final Object value = ExpressionUtils.computeConstantExpression(expression); |
| @NonNls final String newExpression; |
| if (value instanceof String) { |
| final String string = (String)value; |
| newExpression = '"' + StringUtil.escapeStringCharacters(string) + '"'; |
| } |
| else if (value instanceof Character) { |
| newExpression = '\'' + StringUtil.escapeStringCharacters(value.toString()) + '\''; |
| } |
| else if (value instanceof Long) { |
| newExpression = value.toString() + 'L'; |
| } |
| else if (value instanceof Double) { |
| final double v = ((Double)value).doubleValue(); |
| if (Double.isNaN(v)) { |
| newExpression = "java.lang.Double.NaN"; |
| } |
| else if (Double.isInfinite(v)) { |
| if (v > 0.0) { |
| newExpression = "java.lang.Double.POSITIVE_INFINITY"; |
| } |
| else { |
| newExpression = "java.lang.Double.NEGATIVE_INFINITY"; |
| } |
| } |
| else { |
| newExpression = Double.toString(v); |
| } |
| } |
| else if (value instanceof Float) { |
| final float v = ((Float)value).floatValue(); |
| if (Float.isNaN(v)) { |
| newExpression = "java.lang.Float.NaN"; |
| } |
| else if (Float.isInfinite(v)) { |
| if (v > 0.0F) { |
| newExpression = "java.lang.Float.POSITIVE_INFINITY"; |
| } |
| else { |
| newExpression = "java.lang.Float.NEGATIVE_INFINITY"; |
| } |
| } |
| else { |
| newExpression = Float.toString(v) + 'f'; |
| } |
| } |
| else if (value == null) { |
| newExpression = "null"; |
| } |
| else { |
| newExpression = String.valueOf(value); |
| } |
| PsiReplacementUtil.replaceExpression(expression, newExpression); |
| } |
| } |