| /* |
| * Copyright 2000-2012 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.codeInsight.template.macro; |
| |
| import com.intellij.codeInsight.CodeInsightBundle; |
| import com.intellij.codeInsight.lookup.LookupElement; |
| import com.intellij.codeInsight.lookup.PsiTypeLookupItem; |
| import com.intellij.codeInsight.template.*; |
| import com.intellij.psi.PsiArrayType; |
| import com.intellij.psi.PsiDocumentManager; |
| import com.intellij.psi.PsiExpression; |
| import com.intellij.psi.PsiType; |
| import com.intellij.util.containers.ContainerUtil; |
| import org.jetbrains.annotations.NotNull; |
| |
| import java.util.List; |
| |
| public class ComponentTypeOfMacro extends Macro { |
| @Override |
| public String getName() { |
| return "componentTypeOf"; |
| } |
| |
| @Override |
| public String getPresentableName() { |
| return CodeInsightBundle.message("macro.component.type.of.array"); |
| } |
| |
| @Override |
| public LookupElement[] calculateLookupItems(@NotNull Expression[] params, ExpressionContext context) { |
| if (params.length != 1) return null; |
| LookupElement[] lookupItems = params[0].calculateLookupItems(context); |
| if (lookupItems == null) return null; |
| |
| List<LookupElement> result = ContainerUtil.newArrayList(); |
| for (LookupElement element : lookupItems) { |
| PsiTypeLookupItem lookupItem = element.as(PsiTypeLookupItem.CLASS_CONDITION_KEY); |
| if (lookupItem != null) { |
| PsiType psiType = lookupItem.getPsiType(); |
| if (psiType instanceof PsiArrayType) { |
| result.add(PsiTypeLookupItem.createLookupItem(((PsiArrayType)psiType).getComponentType(), null)); |
| } |
| } |
| } |
| |
| return lookupItems; |
| } |
| |
| @Override |
| public Result calculateResult(@NotNull Expression[] params, final ExpressionContext context) { |
| if (params.length != 1) return null; |
| final Result result = params[0].calculateResult(context); |
| if (result == null) return null; |
| |
| if (result instanceof PsiTypeResult) { |
| PsiType type = ((PsiTypeResult) result).getType(); |
| if (type instanceof PsiArrayType) { |
| return new PsiTypeResult(((PsiArrayType) type).getComponentType(), context.getProject()); |
| } |
| } |
| |
| PsiExpression expr = MacroUtil.resultToPsiExpression(result, context); |
| PsiType type = expr == null ? MacroUtil.resultToPsiType(result, context) : expr.getType(); |
| if (type instanceof PsiArrayType) { |
| return new PsiTypeResult(((PsiArrayType) type).getComponentType(), context.getProject()); |
| } |
| |
| LookupElement[] elements = params[0].calculateLookupItems(context); |
| if (elements != null) { |
| for (LookupElement element : elements) { |
| PsiTypeLookupItem typeLookupItem = element.as(PsiTypeLookupItem.CLASS_CONDITION_KEY); |
| if (typeLookupItem != null) { |
| PsiType psiType = typeLookupItem.getPsiType(); |
| if (psiType instanceof PsiArrayType) { |
| return new PsiTypeResult(((PsiArrayType)psiType).getComponentType(), context.getProject()); |
| } |
| } |
| } |
| } |
| |
| return new PsiElementResult(null); |
| } |
| |
| @Override |
| public boolean isAcceptableInContext(TemplateContextType context) { |
| return context instanceof JavaCodeContextType; |
| } |
| |
| } |
| |