| /* |
| * Copyright 2000-2014 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.codeInspection; |
| |
| import com.intellij.codeInspection.lang.InspectionExtensionsFactory; |
| import com.intellij.lang.Commenter; |
| import com.intellij.lang.Language; |
| import com.intellij.lang.LanguageCommenters; |
| import com.intellij.openapi.application.ApplicationManager; |
| import com.intellij.openapi.extensions.Extensions; |
| import com.intellij.openapi.project.Project; |
| import com.intellij.openapi.util.Couple; |
| import com.intellij.openapi.util.NullableComputable; |
| import com.intellij.openapi.util.text.StringUtil; |
| import com.intellij.psi.PsiComment; |
| import com.intellij.psi.PsiElement; |
| import com.intellij.psi.PsiParserFacade; |
| import com.intellij.psi.PsiWhiteSpace; |
| import com.intellij.psi.util.PsiTreeUtil; |
| import org.jetbrains.annotations.NonNls; |
| import org.jetbrains.annotations.NotNull; |
| import org.jetbrains.annotations.Nullable; |
| |
| import java.util.regex.Matcher; |
| import java.util.regex.Pattern; |
| |
| /** |
| * @author yole |
| */ |
| public class SuppressionUtil extends SuppressionUtilCore { |
| /** |
| * Common part of regexp for suppressing in line comments for different languages. |
| * Comment start prefix isn't included, e.g. add '//' for Java/C/JS or '#' for Ruby |
| */ |
| @NonNls |
| public static final String COMMON_SUPPRESS_REGEXP = "\\s*" + SUPPRESS_INSPECTIONS_TAG_NAME + |
| "\\s+(" + LocalInspectionTool.VALID_ID_PATTERN + |
| "(\\s*,\\s*" + LocalInspectionTool.VALID_ID_PATTERN + ")*)\\s*\\w*"; |
| |
| @NonNls |
| public static final Pattern SUPPRESS_IN_LINE_COMMENT_PATTERN = Pattern.compile("//" + COMMON_SUPPRESS_REGEXP); // for Java, C, JS line comments |
| |
| @NonNls |
| public static final String ALL = "ALL"; |
| |
| private SuppressionUtil() { |
| } |
| |
| public static boolean isInspectionToolIdMentioned(@NotNull String inspectionsList, String inspectionToolID) { |
| Iterable<String> ids = StringUtil.tokenize(inspectionsList, "[, ]"); |
| |
| for (@NonNls String id : ids) { |
| @NonNls String trim = id.trim(); |
| if (trim.equals(inspectionToolID) || trim.equalsIgnoreCase(ALL)) return true; |
| } |
| return false; |
| } |
| |
| @Nullable |
| public static PsiElement getStatementToolSuppressedIn(final PsiElement place, |
| final String toolId, |
| final Class<? extends PsiElement> statementClass) { |
| return getStatementToolSuppressedIn(place, toolId, statementClass, SUPPRESS_IN_LINE_COMMENT_PATTERN); |
| } |
| |
| @Nullable |
| public static PsiElement getStatementToolSuppressedIn(final PsiElement place, |
| final String toolId, |
| final Class<? extends PsiElement> statementClass, |
| final Pattern suppressInLineCommentPattern) { |
| PsiElement statement = PsiTreeUtil.getNonStrictParentOfType(place, statementClass); |
| if (statement != null) { |
| PsiElement prev = PsiTreeUtil.skipSiblingsBackward(statement, PsiWhiteSpace.class); |
| if (prev instanceof PsiComment) { |
| String text = prev.getText(); |
| Matcher matcher = suppressInLineCommentPattern.matcher(text); |
| if (matcher.matches() && isInspectionToolIdMentioned(matcher.group(1), toolId)) { |
| return prev; |
| } |
| } |
| } |
| return null; |
| } |
| |
| public static boolean isSuppressedInStatement(final PsiElement place, |
| final String toolId, |
| final Class<? extends PsiElement> statementClass) { |
| return ApplicationManager.getApplication().runReadAction(new NullableComputable<PsiElement>() { |
| @Override |
| public PsiElement compute() { |
| return getStatementToolSuppressedIn(place, toolId, statementClass); |
| } |
| }) != null; |
| } |
| |
| @NotNull |
| public static PsiComment createComment(@NotNull Project project, |
| @NotNull String commentText, |
| @NotNull Language language) { |
| final PsiParserFacade parserFacade = PsiParserFacade.SERVICE.getInstance(project); |
| return parserFacade.createLineOrBlockCommentFromText(language, commentText); |
| } |
| |
| @Nullable |
| public static Couple<String> getBlockPrefixSuffixPair(PsiElement comment) { |
| final Commenter commenter = LanguageCommenters.INSTANCE.forLanguage(comment.getLanguage()); |
| if (commenter != null) { |
| final String prefix = commenter.getBlockCommentPrefix(); |
| final String suffix = commenter.getBlockCommentSuffix(); |
| if (prefix != null || suffix != null) { |
| return Couple.of(StringUtil.notNullize(prefix), StringUtil.notNullize(suffix)); |
| } |
| } |
| return null; |
| } |
| |
| @Nullable |
| public static String getLineCommentPrefix(@NotNull final PsiElement comment) { |
| final Commenter commenter = LanguageCommenters.INSTANCE.forLanguage(comment.getLanguage()); |
| return commenter == null ? null : commenter.getLineCommentPrefix(); |
| } |
| |
| public static boolean isSuppressionComment(@NotNull PsiElement comment) { |
| final String prefix = getLineCommentPrefix(comment); |
| final String commentText = comment.getText(); |
| if (prefix != null) { |
| return commentText.startsWith(prefix + SUPPRESS_INSPECTIONS_TAG_NAME); |
| } |
| final Couple<String> prefixSuffixPair = getBlockPrefixSuffixPair(comment); |
| return prefixSuffixPair != null |
| && commentText.startsWith(prefixSuffixPair.first + SUPPRESS_INSPECTIONS_TAG_NAME) |
| && commentText.endsWith(prefixSuffixPair.second); |
| } |
| |
| public static void replaceSuppressionComment(@NotNull PsiElement comment, @NotNull String id, |
| boolean replaceOtherSuppressionIds, @NotNull Language commentLanguage) { |
| final String oldSuppressionCommentText = comment.getText(); |
| final String lineCommentPrefix = getLineCommentPrefix(comment); |
| Couple<String> blockPrefixSuffix = null; |
| if (lineCommentPrefix == null) { |
| blockPrefixSuffix = getBlockPrefixSuffixPair(comment); |
| } |
| assert blockPrefixSuffix != null |
| && oldSuppressionCommentText.startsWith(blockPrefixSuffix.first) |
| && oldSuppressionCommentText.endsWith(blockPrefixSuffix.second) |
| || lineCommentPrefix != null && oldSuppressionCommentText.startsWith(lineCommentPrefix) |
| : "Unexpected suppression comment " + oldSuppressionCommentText; |
| |
| // append new suppression tool id or replace |
| final String newText; |
| if(replaceOtherSuppressionIds) { |
| newText = SUPPRESS_INSPECTIONS_TAG_NAME + " " + id; |
| } |
| else if (lineCommentPrefix == null) { |
| newText = oldSuppressionCommentText.substring(blockPrefixSuffix.first.length(), |
| oldSuppressionCommentText.length() - blockPrefixSuffix.second.length()) + "," + id; |
| } |
| else { |
| newText = oldSuppressionCommentText.substring(lineCommentPrefix.length()) + "," + id; |
| } |
| comment.replace(createComment(comment.getProject(), newText, commentLanguage)); |
| } |
| |
| public static void createSuppression(@NotNull Project project, |
| @NotNull PsiElement container, |
| @NotNull String id, @NotNull Language commentLanguage) { |
| final String text = SUPPRESS_INSPECTIONS_TAG_NAME + " " + id; |
| PsiComment comment = createComment(project, text, commentLanguage); |
| container.getParent().addBefore(comment, container); |
| } |
| |
| public static boolean isSuppressed(@NotNull PsiElement psiElement, String id) { |
| if (id == null) return false; |
| for (InspectionExtensionsFactory factory : Extensions.getExtensions(InspectionExtensionsFactory.EP_NAME)) { |
| if (!factory.isToCheckMember(psiElement, id)) { |
| return true; |
| } |
| } |
| return false; |
| } |
| |
| public static boolean inspectionResultSuppressed(@NotNull PsiElement place, @NotNull LocalInspectionTool tool) { |
| return tool.isSuppressedFor(place); |
| } |
| } |