| /* |
| * 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.codeInsight.template.macro; |
| |
| import com.intellij.codeInsight.CodeInsightBundle; |
| import com.intellij.codeInsight.lookup.LookupElement; |
| import com.intellij.codeInsight.template.*; |
| import com.intellij.codeInsight.template.impl.JavaTemplateUtil; |
| import com.intellij.openapi.project.Project; |
| import com.intellij.openapi.util.TextRange; |
| import com.intellij.psi.*; |
| import com.intellij.psi.util.PsiTreeUtil; |
| import com.intellij.psi.util.PsiUtilBase; |
| import com.intellij.psi.util.PsiUtilCore; |
| import com.intellij.util.containers.ContainerUtil; |
| import org.jetbrains.annotations.NotNull; |
| import org.jetbrains.annotations.Nullable; |
| |
| import java.util.ArrayList; |
| import java.util.LinkedHashSet; |
| import java.util.Set; |
| |
| public class VariableOfTypeMacro extends Macro { |
| |
| @Override |
| public String getName() { |
| return "variableOfType"; |
| } |
| |
| @Override |
| public String getPresentableName() { |
| return CodeInsightBundle.message("macro.variable.of.type"); |
| } |
| |
| @Override |
| @NotNull |
| public String getDefaultValue() { |
| return "a"; |
| } |
| |
| @Override |
| public Result calculateResult(@NotNull Expression[] params, ExpressionContext context) { |
| final PsiElement[] vars = getVariables(params, context); |
| if (vars == null || vars.length == 0) return null; |
| return new JavaPsiElementResult(vars[0]); |
| } |
| |
| @Override |
| public LookupElement[] calculateLookupItems(@NotNull Expression[] params, final ExpressionContext context) { |
| final PsiElement[] vars = getVariables(params, context); |
| if (vars == null || vars.length < 2) return null; |
| final Set<LookupElement> set = new LinkedHashSet<LookupElement>(); |
| for (PsiElement var : vars) { |
| JavaTemplateUtil.addElementLookupItem(set, var); |
| } |
| return set.toArray(new LookupElement[set.size()]); |
| } |
| |
| @Nullable |
| protected PsiElement[] getVariables(Expression[] params, final ExpressionContext context) { |
| if (params.length != 1) return null; |
| final Result result = params[0].calculateResult(context); |
| if (result == null) return null; |
| |
| Project project = context.getProject(); |
| final int offset = context.getStartOffset(); |
| |
| final ArrayList<PsiElement> array = new ArrayList<PsiElement>(); |
| PsiType type = MacroUtil.resultToPsiType(result, context); |
| PsiFile file = PsiDocumentManager.getInstance(project).getPsiFile(context.getEditor().getDocument()); |
| PsiElement place = file.findElementAt(offset); |
| |
| PsiVariable[] variables = MacroUtil.getVariablesVisibleAt(place, ""); |
| PsiManager manager = PsiManager.getInstance(project); |
| for (PsiVariable var : variables) { |
| if (var instanceof PsiField && var.hasModifierProperty(PsiModifier.STATIC)) { |
| PsiClass varClass = ((PsiField)var).getContainingClass(); |
| PsiClass placeClass = PsiTreeUtil.getParentOfType(place, PsiClass.class); |
| if (!manager.areElementsEquivalent(varClass, placeClass)) continue; |
| } |
| else if (var instanceof PsiLocalVariable) { |
| final TextRange range = var.getNameIdentifier().getTextRange(); |
| if (range != null && range.contains(offset)) { |
| continue; |
| } |
| } |
| |
| PsiType type1 = VariableTypeCalculator.getVarTypeAt(var, place); |
| if (type == null || type.isAssignableFrom(type1)) { |
| array.add(var); |
| } |
| } |
| |
| PsiExpression[] expressions = MacroUtil.getStandardExpressionsOfType(place, type); |
| ContainerUtil.addAll(array, expressions); |
| return PsiUtilCore.toPsiElementArray(array); |
| } |
| |
| @Override |
| public boolean isAcceptableInContext(TemplateContextType context) { |
| return context instanceof JavaCodeContextType; |
| } |
| } |
| |