1 files changed, 65 insertions, 0 deletions
diff --git a/contrib/llvm/tools/clang/lib/Serialization/GeneratePCH.cpp b/contrib/llvm/tools/clang/lib/Serialization/GeneratePCH.cpp
new file mode 100644
index 0000000..4a2255a
--- /dev/null
+++ b/contrib/llvm/tools/clang/lib/Serialization/GeneratePCH.cpp
@@ -0,0 +1,65 @@
+//===--- GeneratePCH.cpp - Sema Consumer for PCH Generation -----*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+//  This file defines the PCHGenerator, which as a SemaConsumer that generates
+//  a PCH file.
+//
+//===----------------------------------------------------------------------===//
+
+#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 <string>
+
+using namespace clang;
+
+PCHGenerator::PCHGenerator(
+  const Preprocessor &PP, StringRef OutputFile,
+  clang::Module *Module, StringRef isysroot,
+  std::shared_ptr<PCHBuffer> Buffer,
+  ArrayRef<llvm::IntrusiveRefCntPtr<ModuleFileExtension>> Extensions,
+  bool AllowASTWithErrors, bool IncludeTimestamps)
+    : PP(PP), OutputFile(OutputFile), Module(Module), isysroot(isysroot.str()),
+      SemaPtr(nullptr), Buffer(Buffer), Stream(Buffer->Data),
+      Writer(Stream, Extensions, IncludeTimestamps),
+      AllowASTWithErrors(AllowASTWithErrors) {
+  Buffer->IsComplete = false;
+}
+
+PCHGenerator::~PCHGenerator() {
+}
+
+void PCHGenerator::HandleTranslationUnit(ASTContext &Ctx) {
+  // Don't create a PCH if there were fatal failures during module loading.
+  if (PP.getModuleLoader().HadFatalFailure)
+    return;
+
+  bool hasErrors = PP.getDiagnostics().hasErrorOccurred();
+  if (hasErrors && !AllowASTWithErrors)
+    return;
+
+  // Emit the PCH file to the Buffer.
+  assert(SemaPtr && "No Sema?");
+  Buffer->Signature =
+      Writer.WriteAST(*SemaPtr, OutputFile, Module, isysroot, hasErrors);
+
+  Buffer->IsComplete = true;
+}
+
+ASTMutationListener *PCHGenerator::GetASTMutationListener() {
+  return &Writer;
+}
+
+ASTDeserializationListener *PCHGenerator::GetASTDeserializationListener() {
+  return &Writer;
+}