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memory optimization: reuse smart pointer for a psi element

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This commit is contained in:
Alexey Kudravtsev
2011-05-20 12:47:38 +04:00
parent cca3d02d75
commit 1ee41f0524
1 changed files with 33 additions and 22 deletions
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platform/lang-impl/src/com/intellij/psi/impl/smartPointers/SmartPointerManagerImpl.java
+33 -22
View File
@@ -19,14 +19,17 @@ package com.intellij.psi.impl.smartPointers;
import com.intellij.lang.Language;
import com.intellij.openapi.diagnostic.Logger;
import com.intellij.openapi.editor.Document;
import com.intellij.openapi.editor.impl.DocumentImpl;
import com.intellij.openapi.project.Project;
import com.intellij.openapi.util.Comparing;
import com.intellij.openapi.util.Key;
import com.intellij.openapi.util.TextRange;
import com.intellij.psi.*;
import com.intellij.psi.impl.source.tree.injected.InjectedLanguageUtil;
import com.intellij.reference.SoftReference;
import org.jetbrains.annotations.NotNull;
import java.lang.ref.Reference;
import java.lang.ref.WeakReference;
import java.util.ArrayList;
import java.util.List;
@@ -44,7 +47,7 @@ public class SmartPointerManagerImpl extends SmartPointerManager {
myProject = project;
}
public static void fastenBelts(PsiFile file, int offset) {
public static void fastenBelts(@NotNull PsiFile file, int offset) {
synchronized (file) {
if (areBeltsFastened(file)) return;
@@ -52,6 +55,11 @@ public class SmartPointerManagerImpl extends SmartPointerManager {
List<WeakReference<SmartPointerEx>> pointers = getPointers(file);
if (pointers == null) return;
PsiDocumentManager psiDocumentManager = PsiDocumentManager.getInstance(file.getProject());
Document document = psiDocumentManager.getDocument(file);
if (document instanceof DocumentImpl) {
((DocumentImpl)document).normalizeRangeMarkers();
}
int index = 0;
for (int i = 0; i < pointers.size(); i++) {
@@ -63,11 +71,10 @@ public class SmartPointerManagerImpl extends SmartPointerManager {
}
}
final PsiDocumentManager psiDocumentManager = PsiDocumentManager.getInstance(file.getProject());
for(Document document:InjectedLanguageUtil.getCachedInjectedDocuments(file)) {
PsiFile injectedfile = psiDocumentManager.getPsiFile(document);
if (injectedfile == null) continue;
fastenBelts(injectedfile, 0);
for (Document injectedDoc : InjectedLanguageUtil.getCachedInjectedDocuments(file)) {
PsiFile injectedFile = psiDocumentManager.getPsiFile(injectedDoc);
if (injectedFile == null) continue;
fastenBelts(injectedFile, 0);
}
int size = pointers.size();
@@ -77,15 +84,19 @@ public class SmartPointerManagerImpl extends SmartPointerManager {
}
}
public static void unfastenBelts(PsiFile file, int offset) {
final Set<Language> languages = file.getViewProvider().getLanguages();
for (Language language : languages) {
final PsiFile f = file.getViewProvider().getPsi(language);
f.putUserData(BELTS_ARE_FASTEN_KEY, null);
public static void unfastenBelts(@NotNull PsiFile file, int offset) {
synchronized (file) {
PsiDocumentManager psiDocumentManager = PsiDocumentManager.getInstance(file.getProject());
file.putUserData(BELTS_ARE_FASTEN_KEY, null);
List<WeakReference<SmartPointerEx>> pointers = getPointers(file);
if (pointers == null) return;
Document document = psiDocumentManager.getDocument(file);
if (document instanceof DocumentImpl) {
((DocumentImpl)document).normalizeRangeMarkers();
}
int index = 0;
for (int i = 0; i < pointers.size(); i++) {
WeakReference<SmartPointerEx> reference = pointers.get(i);
@@ -96,11 +107,10 @@ public class SmartPointerManagerImpl extends SmartPointerManager {
}
}
final PsiDocumentManager psiDocumentManager = PsiDocumentManager.getInstance(file.getProject());
for(Document document:InjectedLanguageUtil.getCachedInjectedDocuments(file)) {
PsiFile injectedfile = psiDocumentManager.getPsiFile(document);
if (injectedfile == null) continue;
unfastenBelts(injectedfile, 0);
for (Document injectedDoc : InjectedLanguageUtil.getCachedInjectedDocuments(file)) {
PsiFile injectedFile = psiDocumentManager.getPsiFile(injectedDoc);
if (injectedFile == null) continue;
unfastenBelts(injectedFile, 0);
}
int size = pointers.size();
@@ -147,21 +157,22 @@ public class SmartPointerManagerImpl extends SmartPointerManager {
}
}
//private static final Key<SmartPsiElementPointer> CACHED_SMART_POINTER_KEY = Key.create("CACHED_SMART_POINTER_KEY");
private static final Key<Reference<SmartPsiElementPointer>> CACHED_SMART_POINTER_KEY = Key.create("CACHED_SMART_POINTER_KEY");
@NotNull
public <E extends PsiElement> SmartPsiElementPointer<E> createSmartPsiElementPointer(@NotNull E element) {
if (!element.isValid()) {
LOG.error("Invalid element:" + element);
}
//final SmartPsiElementPointer cachedPointer = element.getUserData(CACHED_SMART_POINTER_KEY);
//if (cachedPointer != null) {
// return cachedPointer;
//}
Reference<SmartPsiElementPointer> data = element.getUserData(CACHED_SMART_POINTER_KEY);
SmartPsiElementPointer cachedPointer = data == null ? null : data.get();
if (cachedPointer != null) {
return cachedPointer;
}
PsiFile containingFile = element.getContainingFile();
SmartPointerEx<E> pointer = new SmartPsiElementPointerImpl<E>(myProject, element, containingFile);
initPointer(pointer, containingFile);
//element.putUserData(CACHED_SMART_POINTER_KEY, pointer);
element.putUserData(CACHED_SMART_POINTER_KEY, new SoftReference<SmartPsiElementPointer>(pointer));
return pointer;
}