| /* |
| * 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. |
| */ |
| |
| /* |
| * @author ven |
| */ |
| package com.intellij.codeInsight.template.macro; |
| |
| import com.intellij.codeInsight.CodeInsightBundle; |
| import com.intellij.codeInsight.template.*; |
| import com.intellij.openapi.project.Project; |
| import com.intellij.psi.*; |
| import com.intellij.psi.util.PsiTreeUtil; |
| import org.jetbrains.annotations.NotNull; |
| |
| public class CastToLeftSideTypeMacro extends Macro { |
| @Override |
| public String getName() { |
| return "castToLeftSideType"; |
| } |
| |
| @Override |
| public String getPresentableName() { |
| return CodeInsightBundle.message("macro.cast.to.left.side.type"); |
| } |
| |
| @Override |
| @NotNull |
| public String getDefaultValue() { |
| return "(A)"; |
| } |
| |
| @Override |
| public Result calculateResult(@NotNull Expression[] params, ExpressionContext context) { |
| int offset = context.getStartOffset(); |
| Project project = context.getProject(); |
| PsiFile file = PsiDocumentManager.getInstance(project).getPsiFile(context.getEditor().getDocument()); |
| PsiElement element = file.findElementAt(offset); |
| element = PsiTreeUtil.getParentOfType(element, PsiAssignmentExpression.class, PsiVariable.class); |
| PsiType leftType = null; |
| PsiExpression rightSide = null; |
| if (element instanceof PsiAssignmentExpression) { |
| PsiAssignmentExpression assignment = (PsiAssignmentExpression) element; |
| leftType = assignment.getLExpression().getType(); |
| rightSide = assignment.getRExpression(); |
| } else if (element instanceof PsiVariable) { |
| PsiVariable var = (PsiVariable) element; |
| leftType = var.getType(); |
| rightSide = var.getInitializer(); |
| } |
| |
| while (rightSide instanceof PsiTypeCastExpression) rightSide = ((PsiTypeCastExpression) rightSide).getOperand(); |
| |
| if (leftType != null && rightSide != null && rightSide.getType() != null && !leftType.isAssignableFrom(rightSide.getType())) { |
| return new TextResult("("+ leftType.getCanonicalText() + ")"); |
| } |
| |
| return new TextResult(""); |
| } |
| |
| @Override |
| public boolean isAcceptableInContext(TemplateContextType context) { |
| return context instanceof JavaCodeContextType; |
| } |
| |
| } |