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[clang] Add PPCallbacks list to preprocessor when building a preacompiled preamble. 

Summary:
Revision D38639 needs this commit in order to properly make open
definition calls on include statements work.

Patch by William Enright.

Reviewers: malaperle, krasimir, bkramer, ilya-biryukov

Reviewed By: malaperle, ilya-biryukov

Subscribers: cfe-commits, arphaman, ilya-biryukov

Differential Revision: https://reviews.llvm.org/D39375

llvm-svn: 320804
This commit is contained in:
Ilya Biryukov 2017-12-15 11:27:51 +00:00
parent 96ca4f5e91
commit 41e90bcb77
3 changed files with 13 additions and 25 deletions
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8
clang/include/clang/Frontend/PrecompiledPreamble.h
View File

@ -255,11 +255,9 @@ public:
/// NOTE: To allow more flexibility a custom ASTConsumer could probably be
/// used instead, but having only this method allows a simpler API.
virtual void HandleTopLevelDecl(DeclGroupRef DG);
/// Called for each macro defined in the Preamble.
/// NOTE: To allow more flexibility a custom PPCallbacks could probably be
/// used instead, but having only this method allows a simpler API.
virtual void HandleMacroDefined(const Token &MacroNameTok,
const MacroDirective *MD);
/// Creates wrapper class for PPCallbacks so we can also process information
/// about includes that are inside of a preamble
virtual std::unique_ptr<PPCallbacks> createPPCallbacks();
};
enum class BuildPreambleError {

5
clang/lib/Frontend/ASTUnit.cpp
View File

@ -970,9 +970,8 @@ public:
}
}
void HandleMacroDefined(const Token &MacroNameTok,
const MacroDirective *MD) override {
AddDefinedMacroToHash(MacroNameTok, Hash);
std::unique_ptr<PPCallbacks> createPPCallbacks() override {
return llvm::make_unique<MacroDefinitionTrackerPPCallbacks>(Hash);
}
private:

25
clang/lib/Frontend/PrecompiledPreamble.cpp
View File

@ -115,19 +115,6 @@ void TemporaryFiles::removeFile(StringRef File) {
llvm::sys::fs::remove(File);
}
class PreambleMacroCallbacks : public PPCallbacks {
public:
PreambleMacroCallbacks(PreambleCallbacks &Callbacks) : Callbacks(Callbacks) {}
void MacroDefined(const Token &MacroNameTok,
const MacroDirective *MD) override {
Callbacks.HandleMacroDefined(MacroNameTok, MD);
}
private:
PreambleCallbacks &Callbacks;
};
class PrecompilePreambleAction : public ASTFrontendAction {
public:
PrecompilePreambleAction(std::string *InMemStorage,
@ -213,8 +200,6 @@ PrecompilePreambleAction::CreateASTConsumer(CompilerInstance &CI,
if (!CI.getFrontendOpts().RelocatablePCH)
Sysroot.clear();
CI.getPreprocessor().addPPCallbacks(
llvm::make_unique<PreambleMacroCallbacks>(Callbacks));
return llvm::make_unique<PrecompilePreambleConsumer>(
*this, CI.getPreprocessor(), Sysroot, std::move(OS));
}
@ -351,6 +336,11 @@ llvm::ErrorOr<PrecompiledPreamble> PrecompiledPreamble::Build(
if (!Act->BeginSourceFile(*Clang.get(), Clang->getFrontendOpts().Inputs[0]))
return BuildPreambleError::BeginSourceFileFailed;
std::unique_ptr<PPCallbacks> DelegatedPPCallbacks =
Callbacks.createPPCallbacks();
if (DelegatedPPCallbacks)
Clang->getPreprocessor().addPPCallbacks(std::move(DelegatedPPCallbacks));
Act->Execute();
// Run the callbacks.
@ -707,8 +697,9 @@ void PrecompiledPreamble::setupPreambleStorage(
void PreambleCallbacks::AfterExecute(CompilerInstance &CI) {}
void PreambleCallbacks::AfterPCHEmitted(ASTWriter &Writer) {}
void PreambleCallbacks::HandleTopLevelDecl(DeclGroupRef DG) {}
void PreambleCallbacks::HandleMacroDefined(const Token &MacroNameTok,
const MacroDirective *MD) {}
std::unique_ptr<PPCallbacks> PreambleCallbacks::createPPCallbacks() {
return nullptr;
}
std::error_code clang::make_error_code(BuildPreambleError Error) {
return std::error_code(static_cast<int>(Error), BuildPreambleErrorCategory());