#include "clang/Serialization/ASTWriter.h"
#include "clang/AST/ASTConsumer.h"
#include "clang/AST/ASTContext.h"
#include "clang/Basic/FileManager.h"
#include "clang/Lex/Preprocessor.h"
#include "clang/Sema/SemaConsumer.h"
#include "llvm/Bitcode/BitstreamWriter.h"
#include "llvm/Support/raw_ostream.h"
#include <string>
using namespace clang;
PCHGenerator::PCHGenerator(const Preprocessor &PP,
StringRef OutputFile,
clang::Module *Module,
StringRef isysroot,
raw_ostream *OS, bool AllowASTWithErrors)
: PP(PP), OutputFile(OutputFile), Module(Module),
isysroot(isysroot.str()), Out(OS),
SemaPtr(nullptr), Stream(Buffer), Writer(Stream),
AllowASTWithErrors(AllowASTWithErrors),
HasEmittedPCH(false) {
}
PCHGenerator::~PCHGenerator() {
}
void PCHGenerator::HandleTranslationUnit(ASTContext &Ctx) {
if (PP.getModuleLoader().HadFatalFailure)
return;
bool hasErrors = PP.getDiagnostics().hasErrorOccurred();
if (hasErrors && !AllowASTWithErrors)
return;
assert(SemaPtr && "No Sema?");
Writer.WriteAST(*SemaPtr, OutputFile, Module, isysroot, hasErrors);
Out->write((char *)&Buffer.front(), Buffer.size());
Out->flush();
Buffer.clear();
HasEmittedPCH = true;
}
ASTMutationListener *PCHGenerator::GetASTMutationListener() {
return &Writer;
}
ASTDeserializationListener *PCHGenerator::GetASTDeserializationListener() {
return &Writer;
}