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don't reparse whole file when document/psi texts are equal

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This commit is contained in:
peter
2014-06-23 10:39:32 +02:00
parent af2037d510
commit d9b234d57e
2 changed files with 10 additions and 3 deletions
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platform/core-impl/src/com/intellij/pom/core/impl/PomModelImpl.java
+2
View File
@@ -271,6 +271,8 @@ public class PomModelImpl extends UserDataHolderBase implements PomModel {
PsiToDocumentSynchronizer synchronizer =((PsiDocumentManagerBase)PsiDocumentManager.getInstance(myProject)).getSynchronizer();
TextRange changedPsiRange = DocumentCommitProcessor.getChangedPsiRange(file, oldText, newText);
if (changedPsiRange == null) return;
final DiffLog log = BlockSupport.getInstance(myProject).reparseRange(file, changedPsiRange, newText, new EmptyProgressIndicator());
synchronizer.setIgnorePsiEvents(true);
try {
platform/core-impl/src/com/intellij/psi/impl/DocumentCommitProcessor.java
+8 -3
View File
@@ -105,13 +105,17 @@ public abstract class DocumentCommitProcessor {
final long startDocModificationTimeStamp = document.getModificationStamp();
final FileElement myTreeElementBeingReparsedSoItWontBeCollected = ((PsiFileImpl)file).calcTreeElement();
final CharSequence chars = document.getImmutableCharSequence();
final CharSequence oldPsiText = myTreeElementBeingReparsedSoItWontBeCollected.getChars();
final TextRange changedPsiRange = getChangedPsiRange(file, oldPsiText, chars);
if (changedPsiRange == null) {
return null;
}
final Boolean data = document.getUserData(BlockSupport.DO_NOT_REPARSE_INCREMENTALLY);
if (data != null) {
document.putUserData(BlockSupport.DO_NOT_REPARSE_INCREMENTALLY, null);
file.putUserData(BlockSupport.DO_NOT_REPARSE_INCREMENTALLY, data);
}
final CharSequence oldPsiText = myTreeElementBeingReparsedSoItWontBeCollected.getChars();
final TextRange changedPsiRange = getChangedPsiRange(file, oldPsiText, chars);
BlockSupport blockSupport = BlockSupport.getInstance(file.getProject());
final DiffLog diffLog = blockSupport.reparseRange(file, changedPsiRange, chars, task.indicator);
@@ -135,6 +139,7 @@ public abstract class DocumentCommitProcessor {
};
}
@Nullable
public static TextRange getChangedPsiRange(@NotNull PsiFile file, @NotNull CharSequence oldPsiText, @NotNull CharSequence newDocumentText) {
if (!file.getViewProvider().supportsIncrementalReparse(file.getLanguage())) {
return new TextRange(0, newDocumentText.length());
@@ -142,7 +147,7 @@ public abstract class DocumentCommitProcessor {
int commonPrefixLength = StringUtil.commonPrefixLength(oldPsiText, newDocumentText);
if (commonPrefixLength == newDocumentText.length() && newDocumentText.length() == oldPsiText.length()) {
return new TextRange(0, newDocumentText.length());
return null;
}
int commonSuffixLength = StringUtil.commonSuffixLength(oldPsiText, newDocumentText);