IDEA-117724: source files under "generated source root" should not be inspected

platform/lang-impl/src/com/intellij/codeInsight/daemon/impl/analysis/GeneratedSourcesHighlightingSettingProvider.java

@@ -0,0 +1,38 @@
+/*
+ * Copyright 2000-2013 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.daemon.impl.analysis;
+
+import com.intellij.openapi.project.Project;
+import com.intellij.openapi.roots.GeneratedSourcesFilter;
+import com.intellij.openapi.vfs.VirtualFile;
+import org.jetbrains.annotations.NotNull;
+import org.jetbrains.annotations.Nullable;
+
+/**
+ * @author nik
+ */
+public class GeneratedSourcesHighlightingSettingProvider extends DefaultHighlightingSettingProvider {
+  @Nullable
+  @Override
+  public FileHighlightingSetting getDefaultSetting(@NotNull Project project, @NotNull VirtualFile file) {
+    for (GeneratedSourcesFilter filter : GeneratedSourcesFilter.EP_NAME.getExtensions()) {
+      if (filter.isGeneratedSource(file, project)) {
+        return FileHighlightingSetting.SKIP_HIGHLIGHTING;
+      }
+    }
+    return null;
+  }
+}

platform/platform-resources/src/META-INF/LangExtensions.xml

@@ -817,6 +817,8 @@
     <checkinHandlerFactory implementation="com.intellij.openapi.vcs.checkin.CodeAnalysisCheckinHandlerFactory"/>
     <checkinHandlerFactory implementation="com.intellij.openapi.vcs.checkin.TodoCheckinHandlerFactory"/>
 
+    <defaultHighlightingSettingProvider implementation="com.intellij.codeInsight.daemon.impl.analysis.GeneratedSourcesHighlightingSettingProvider"/>
+
     <projectService serviceInterface="com.intellij.openapi.vcs.CodeSmellDetector"
                     serviceImplementation="com.intellij.openapi.vcs.impl.CodeSmellDetectorImpl"/>