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minor: use SoftReference.dereference

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This commit is contained in:
Egor.Ushakov
2016-10-13 20:40:15 +03:00
parent 7bbc85a1cb
commit c9590508a0
1 changed files with 3 additions and 2 deletions
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java/debugger/openapi/src/com/intellij/debugger/SourcePosition.java
+3 -2
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@@ -28,6 +28,7 @@ import com.intellij.openapi.util.Computable;
import com.intellij.openapi.vfs.VirtualFile;
import com.intellij.pom.Navigatable;
import com.intellij.psi.*;
import com.intellij.reference.SoftReference;
import com.intellij.util.containers.ContainerUtil;
import org.jetbrains.annotations.NotNull;
import org.jetbrains.annotations.Nullable;
@@ -126,7 +127,7 @@ public abstract class SourcePosition implements Navigatable{
if (myModificationStamp != myFile.getModificationStamp()) {
return true;
}
PsiElement psiElement = myPsiElementRef != null ? myPsiElementRef.get() : null;
PsiElement psiElement = SoftReference.dereference(myPsiElementRef);
return psiElement != null && !ApplicationManager.getApplication().runReadAction((Computable<Boolean>)psiElement::isValid);
}
@@ -151,7 +152,7 @@ public abstract class SourcePosition implements Navigatable{
@Override
public PsiElement getElementAt() {
updateData();
PsiElement element = myPsiElementRef != null ? myPsiElementRef.get() : null;
PsiElement element = SoftReference.dereference(myPsiElementRef);
if (element == null) {
element = ApplicationManager.getApplication().runReadAction((Computable<PsiElement>)this::calcPsiElement);
myPsiElementRef = new WeakReference<>(element);