| /* |
| * Copyright 2016 The Bazel Authors. All rights reserved. |
| * |
| * 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.google.idea.blaze.base.lang.buildfile.findusages; |
| |
| import com.google.idea.blaze.base.lang.buildfile.lexer.BuildLexer; |
| import com.google.idea.blaze.base.lang.buildfile.lexer.BuildLexerBase.LexerMode; |
| import com.google.idea.blaze.base.lang.buildfile.lexer.BuildToken; |
| import com.google.idea.blaze.base.lang.buildfile.lexer.TokenKind; |
| import com.google.idea.blaze.base.lang.buildfile.psi.Argument; |
| import com.google.idea.blaze.base.lang.buildfile.psi.BuildElement; |
| import com.google.idea.blaze.base.lang.buildfile.psi.FuncallExpression; |
| import com.google.idea.blaze.base.lang.buildfile.psi.FunctionStatement; |
| import com.google.idea.blaze.base.lang.buildfile.psi.Parameter; |
| import com.google.idea.blaze.base.lang.buildfile.psi.ReferenceExpression; |
| import com.google.idea.blaze.base.lang.buildfile.psi.TargetExpression; |
| import com.intellij.lang.HelpID; |
| import com.intellij.lang.cacheBuilder.DefaultWordsScanner; |
| import com.intellij.lang.cacheBuilder.WordsScanner; |
| import com.intellij.lang.findUsages.FindUsagesProvider; |
| import com.intellij.psi.PsiElement; |
| import com.intellij.psi.PsiNamedElement; |
| import com.intellij.psi.tree.TokenSet; |
| |
| /** |
| * Required for highlighting references (among other things we don't currently support). Currently |
| * only used by the fallback 'DefaultFindUsagesHandlerFactory'. |
| */ |
| public class BuildFindUsagesProvider implements FindUsagesProvider { |
| |
| @Override |
| public boolean canFindUsagesFor(PsiElement psiElement) { |
| return psiElement instanceof FuncallExpression |
| || psiElement instanceof PsiNamedElement |
| || psiElement instanceof ReferenceExpression; |
| } |
| |
| @Override |
| public String getHelpId(PsiElement psiElement) { |
| if (psiElement instanceof FunctionStatement) { |
| return "reference.dialogs.findUsages.method"; |
| } |
| if (psiElement instanceof TargetExpression |
| || psiElement instanceof Parameter |
| || psiElement instanceof ReferenceExpression) { |
| return "reference.dialogs.findUsages.variable"; |
| } |
| // typically build rules and imported Skylark functions, but also all other function calls |
| return HelpID.FIND_OTHER_USAGES; |
| } |
| |
| @Override |
| public String getType(PsiElement element) { |
| if (element instanceof FunctionStatement) { |
| return "function"; |
| } |
| if (element instanceof Parameter) { |
| return "parameter"; |
| } |
| if (element instanceof ReferenceExpression || element instanceof TargetExpression) { |
| return "variable"; |
| } |
| if (element instanceof Argument.Keyword) { |
| return "keyword argument"; |
| } |
| if (element instanceof FuncallExpression) { |
| return "rule"; |
| } |
| return ""; |
| } |
| |
| /** Controls text shown for target element in the 'find usages' dialog */ |
| @Override |
| public String getDescriptiveName(PsiElement element) { |
| if (element instanceof BuildElement) { |
| return ((BuildElement) element).getPresentableText(); |
| } |
| return element.toString(); |
| } |
| |
| @Override |
| public String getNodeText(PsiElement element, boolean useFullName) { |
| return getDescriptiveName(element); |
| } |
| |
| @Override |
| public WordsScanner getWordsScanner() { |
| return new DefaultWordsScanner( |
| new BuildLexer(LexerMode.SyntaxHighlighting), |
| tokenSet(TokenKind.IDENTIFIER), |
| tokenSet(TokenKind.COMMENT), |
| tokenSet(TokenKind.STRING)); |
| } |
| |
| private static TokenSet tokenSet(TokenKind token) { |
| return TokenSet.create(BuildToken.fromKind(token)); |
| } |
| } |