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Clang: Little speedup for code completion

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...by ensuring that the precompiled preamble is created.

Change-Id: I80784b6a79c40a7e452530e8288783f33f881efc
Reviewed-by: Nikolai Kosjar <nikolai.kosjar@theqtcompany.com>
This commit is contained in:
Marco Bubke
2015-07-15 13:55:51 +02:00
committed by Nikolai Kosjar
parent dbe4e32201
commit f9899c2da8
2 changed files with 22 additions and 5 deletions
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25
src/tools/clangbackend/ipcsource/translationunit.cpp
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@@ -163,10 +163,6 @@ void TranslationUnit::removeOutdatedTranslationUnit() const
void TranslationUnit::createTranslationUnitIfNeeded() const
{
const auto options = CXTranslationUnit_CacheCompletionResults
| CXTranslationUnit_PrecompiledPreamble
| CXTranslationUnit_SkipFunctionBodies;
if (!d->translationUnit) {
d->translationUnit = CXTranslationUnit();
CXErrorCode errorCode = clang_parseTranslationUnit2(index(),
@@ -175,11 +171,15 @@ void TranslationUnit::createTranslationUnitIfNeeded() const
d->projectPart.argumentCount(),
d->unsavedFiles.cxUnsavedFiles(),
d->unsavedFiles.count(),
options,
defaultOptions(),
&d->translationUnit);
checkTranslationUnitErrorCode(errorCode);
// We need to reparse to create the precompiled preamble, which will speed up further calls,
// e.g. clang_codeCompleteAt() dramatically.
reparseTranslationUnit();
updateLastChangeTimePoint();
}
}
@@ -192,6 +192,21 @@ void TranslationUnit::checkTranslationUnitErrorCode(CXErrorCode errorCode) const
}
}
void TranslationUnit::reparseTranslationUnit() const
{
clang_reparseTranslationUnit(d->translationUnit,
d->unsavedFiles.count(),
d->unsavedFiles.cxUnsavedFiles(),
clang_defaultReparseOptions(d->translationUnit));
}
int TranslationUnit::defaultOptions()
{
return CXTranslationUnit_CacheCompletionResults
| CXTranslationUnit_PrecompiledPreamble
| CXTranslationUnit_SkipFunctionBodies;
}
uint TranslationUnit::unsavedFilesCount() const
{
return d->unsavedFiles.count();

2
src/tools/clangbackend/ipcsource/translationunit.h
View File

@@ -91,6 +91,8 @@ private:
void removeOutdatedTranslationUnit() const;
void createTranslationUnitIfNeeded() const;
void checkTranslationUnitErrorCode(CXErrorCode errorCode) const;
void reparseTranslationUnit() const;
static int defaultOptions();
private:
mutable std::shared_ptr<TranslationUnitData> d;