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Extract psi class scope comparator

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This commit is contained in:
Daniil Ovchinnikov
2016-09-14 13:30:50 +03:00
parent 3b48c82ba0
commit 681bfa22e1
3 changed files with 24 additions and 21 deletions
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21
java/java-psi-api/src/com/intellij/psi/util/PsiClassUtil.java
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@@ -1,5 +1,5 @@
/*
* Copyright 2000-2009 JetBrains s.r.o.
* Copyright 2000-2016 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.
@@ -16,9 +16,14 @@
package com.intellij.psi.util;
import com.intellij.openapi.vfs.VirtualFile;
import com.intellij.psi.PsiAnonymousClass;
import com.intellij.psi.PsiClass;
import com.intellij.psi.PsiModifier;
import com.intellij.psi.search.GlobalSearchScope;
import org.jetbrains.annotations.NotNull;
import java.util.Comparator;
/**
* @author mike
@@ -41,4 +46,18 @@ public class PsiClassUtil {
if (mustNotBeAbstract && aClass.hasModifierProperty(PsiModifier.ABSTRACT)) return false;
return aClass.getContainingClass() == null || aClass.hasModifierProperty(PsiModifier.STATIC);
}
@NotNull
public static Comparator<PsiClass> createScopeComparator(@NotNull final GlobalSearchScope scope) {
return new Comparator<PsiClass>() {
@Override
public int compare(PsiClass c1, PsiClass c2) {
VirtualFile file1 = PsiUtilCore.getVirtualFile(c1);
VirtualFile file2 = PsiUtilCore.getVirtualFile(c2);
if (file1 == null) return file2 == null ? 0 : -1;
if (file2 == null) return 1;
return scope.compare(file2, file1);
}
};
}
}