| /* |
| * 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.template.*; |
| import com.intellij.openapi.project.Project; |
| import com.intellij.psi.*; |
| import com.intellij.psi.util.PsiTreeUtil; |
| import org.jetbrains.annotations.NotNull; |
| |
| public class SuggestIndexNameMacro extends Macro { |
| @Override |
| public String getName() { |
| return "suggestIndexName"; |
| } |
| |
| @Override |
| public String getPresentableName() { |
| return CodeInsightBundle.message("macro.suggest.index.name"); |
| } |
| |
| @Override |
| @NotNull |
| public String getDefaultValue() { |
| return "a"; |
| } |
| |
| @Override |
| public Result calculateResult(@NotNull Expression[] params, final ExpressionContext context) { |
| if (params.length != 0) return null; |
| |
| final Project project = context.getProject(); |
| final int offset = context.getStartOffset(); |
| |
| PsiFile file = PsiDocumentManager.getInstance(project).getPsiFile(context.getEditor().getDocument()); |
| PsiElement place = file.findElementAt(offset); |
| PsiVariable[] vars = MacroUtil.getVariablesVisibleAt(place, ""); |
| ChooseLetterLoop: |
| for(char letter = 'i'; letter <= 'z'; letter++){ |
| for (PsiVariable var : vars) { |
| PsiIdentifier identifier = var.getNameIdentifier(); |
| if (identifier == null || place.equals(identifier)) continue; |
| if (var instanceof PsiLocalVariable) { |
| PsiElement parent = var.getParent(); |
| if (parent instanceof PsiDeclarationStatement) { |
| if (PsiTreeUtil.isAncestor(parent, place, false) && |
| var.getTextRange().getStartOffset() > place.getTextRange().getStartOffset()) { |
| continue; |
| } |
| } |
| } |
| String name = identifier.getText(); |
| if (name.length() == 1 && name.charAt(0) == letter) { |
| continue ChooseLetterLoop; |
| } |
| } |
| return new TextResult("" + letter); |
| } |
| |
| return null; |
| } |
| |
| @Override |
| public boolean isAcceptableInContext(TemplateContextType context) { |
| return context instanceof JavaCodeContextType; |
| } |
| |
| } |