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make RefCountHolder soft-reacheable to avoid hard refs to PSI elements

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This commit is contained in:
Alexey Kudravtsev
2012-03-15 09:39:20 +04:00
parent 4a599e6916
commit 6454b34f90
1 changed files with 10 additions and 5 deletions
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java/java-impl/src/com/intellij/codeInsight/daemon/impl/RefCountHolder.java
+10 -5
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@@ -30,6 +30,8 @@ import com.intellij.util.containers.BidirectionalMap;
import com.intellij.util.containers.ConcurrentHashMap;
import org.jetbrains.annotations.NotNull;
import java.lang.ref.Reference;
import java.lang.ref.SoftReference;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
@@ -53,13 +55,16 @@ public class RefCountHolder {
BEING_USED_BY_PHP, // post highlighting pass is retrieving info
}
private static final Key<RefCountHolder> REF_COUNT_HOLDER_IN_FILE_KEY = Key.create("REF_COUNT_HOLDER_IN_FILE_KEY");
private static final Key<Reference<RefCountHolder>> REF_COUNT_HOLDER_IN_FILE_KEY = Key.create("REF_COUNT_HOLDER_IN_FILE_KEY");
public static RefCountHolder getInstance(PsiFile file) {
RefCountHolder refCountHolder = file.getUserData(REF_COUNT_HOLDER_IN_FILE_KEY);
if (refCountHolder == null) {
refCountHolder = ((UserDataHolderEx)file).putUserDataIfAbsent(REF_COUNT_HOLDER_IN_FILE_KEY, new RefCountHolder(file));
Reference<RefCountHolder> ref = file.getUserData(REF_COUNT_HOLDER_IN_FILE_KEY);
RefCountHolder holder = ref == null ? null : ref.get();
while (holder == null) {
holder = new RefCountHolder(file);
ref = ((UserDataHolderEx)file).putUserDataIfAbsent(REF_COUNT_HOLDER_IN_FILE_KEY, new SoftReference<RefCountHolder>(holder));
holder = ref.get();
}
return refCountHolder;
return holder;
}
private RefCountHolder(@NotNull PsiFile file) {