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Enumerate module roots directly in ModuleHighlightUtil2.getModuleDescriptor

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This is faster than going through FilenameIndex which would call
GlobalSearchScope.accept for all "module-info.java" files in the
project, and there can be many of those.

Also see https://github.com/JetBrains/intellij-community/pull/670
This commit is contained in:
Alexander Udalov
2017-11-21 11:08:40 +01:00
parent 38d3362bcb
commit dc23a53116
1 changed files with 8 additions and 8 deletions
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idea/idea-analysis/src/org/jetbrains/kotlin/idea/modules/ModuleHighlightUtil2.java
+8 -8
View File
@@ -18,6 +18,7 @@ package org.jetbrains.kotlin.idea.modules;
import com.intellij.openapi.module.Module;
import com.intellij.openapi.project.Project;
import com.intellij.openapi.roots.ModuleRootManager;
import com.intellij.openapi.roots.ProjectFileIndex;
import com.intellij.openapi.vfs.JarFileSystem;
import com.intellij.openapi.vfs.VirtualFile;
@@ -26,17 +27,15 @@ import com.intellij.psi.PsiJavaFile;
import com.intellij.psi.PsiJavaModule;
import com.intellij.psi.PsiManager;
import com.intellij.psi.impl.light.LightJavaModule;
import com.intellij.psi.search.FilenameIndex;
import kotlin.collections.ArraysKt;
import org.jetbrains.annotations.NotNull;
import org.jetbrains.annotations.Nullable;
import java.io.IOException;
import java.io.InputStream;
import java.util.List;
import java.util.jar.Attributes;
import java.util.jar.JarFile;
import java.util.jar.Manifest;
import java.util.stream.Collectors;
import static com.intellij.psi.PsiJavaModule.MODULE_INFO_FILE;
@@ -81,11 +80,12 @@ public class ModuleHighlightUtil2 {
Module module = index.getModuleForFile(file);
if (module != null) {
boolean isTest = index.isInTestSourceContent(file);
List<VirtualFile> files = FilenameIndex.getVirtualFilesByName(project, MODULE_INFO_FILE, module.getModuleScope()).stream()
.filter(f -> index.isInTestSourceContent(f) == isTest)
.collect(Collectors.toList());
if (files.size() == 1) {
PsiFile psiFile = PsiManager.getInstance(project).findFile(files.get(0));
VirtualFile modularRoot = ArraysKt.singleOrNull(ModuleRootManager.getInstance(module).getSourceRoots(isTest),
root -> root.findChild(MODULE_INFO_FILE) != null);
if (modularRoot != null) {
VirtualFile moduleInfo = modularRoot.findChild(MODULE_INFO_FILE);
assert moduleInfo != null : modularRoot;
PsiFile psiFile = PsiManager.getInstance(project).findFile(moduleInfo);
if (psiFile instanceof PsiJavaFile) {
return ((PsiJavaFile) psiFile).getModuleDeclaration();
}