move serialization logic from TranslationUnit to ASTContext.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@67902 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/AST/ASTContext.cpp b/lib/AST/ASTContext.cpp
index 3fe6db8..9f8630f 100644
--- a/lib/AST/ASTContext.cpp
+++ b/lib/AST/ASTContext.cpp
@@ -17,12 +17,12 @@
#include "clang/AST/DeclTemplate.h"
#include "clang/AST/Expr.h"
#include "clang/AST/RecordLayout.h"
+#include "clang/Basic/SourceManager.h"
#include "clang/Basic/TargetInfo.h"
#include "llvm/ADT/StringExtras.h"
#include "llvm/Bitcode/Serialize.h"
#include "llvm/Bitcode/Deserialize.h"
#include "llvm/Support/MathExtras.h"
-
using namespace clang;
enum FloatingRank {
@@ -3080,6 +3080,47 @@
// Serialization Support
//===----------------------------------------------------------------------===//
+enum {
+ BasicMetadataBlock = 1,
+ ASTContextBlock = 2,
+ DeclsBlock = 3
+};
+
+void ASTContext::EmitAll(llvm::Serializer &S) const {
+ // ===---------------------------------------------------===/
+ // Serialize the "Translation Unit" metadata.
+ // ===---------------------------------------------------===/
+
+ // Emit ASTContext.
+ S.EnterBlock(ASTContextBlock);
+ S.EmitOwnedPtr(this);
+ S.ExitBlock(); // exit "ASTContextBlock"
+
+ S.EnterBlock(BasicMetadataBlock);
+
+ // Block for SourceManager and Target. Allows easy skipping
+ // around to the block for the Selectors during deserialization.
+ S.EnterBlock();
+
+ // Emit the SourceManager.
+ S.Emit(getSourceManager());
+
+ // Emit the Target.
+ S.EmitPtr(&Target);
+ S.EmitCStr(Target.getTargetTriple());
+
+ S.ExitBlock(); // exit "SourceManager and Target Block"
+
+ // Emit the Selectors.
+ S.Emit(Selectors);
+
+ // Emit the Identifier Table.
+ S.Emit(Idents);
+
+ S.ExitBlock(); // exit "BasicMetadataBlock"
+}
+
+
/// Emit - Serialize an ASTContext object to Bitcode.
void ASTContext::Emit(llvm::Serializer& S) const {
S.Emit(LangOpts);
@@ -3101,6 +3142,51 @@
// FIXME: S.EmitOwnedPtr(CFConstantStringTypeDecl);
}
+ASTContext* ASTContext::CreateAll(llvm::Deserializer &Dezr,
+ FileManager &FMgr) {
+ // ===---------------------------------------------------===/
+ // Deserialize the "Translation Unit" metadata.
+ // ===---------------------------------------------------===/
+
+ // Skip to the BasicMetaDataBlock. First jump to ASTContextBlock
+ // (which will appear earlier) and record its location.
+
+ bool FoundBlock = Dezr.SkipToBlock(ASTContextBlock);
+ assert (FoundBlock);
+
+ llvm::Deserializer::Location ASTContextBlockLoc =
+ Dezr.getCurrentBlockLocation();
+
+ FoundBlock = Dezr.SkipToBlock(BasicMetadataBlock);
+ assert (FoundBlock);
+
+ // Read the SourceManager.
+ SourceManager::CreateAndRegister(Dezr, FMgr);
+
+ { // Read the TargetInfo.
+ llvm::SerializedPtrID PtrID = Dezr.ReadPtrID();
+ char* triple = Dezr.ReadCStr(NULL,0,true);
+ Dezr.RegisterPtr(PtrID, TargetInfo::CreateTargetInfo(std::string(triple)));
+ delete [] triple;
+ }
+
+ // For Selectors, we must read the identifier table first because the
+ // SelectorTable depends on the identifiers being already deserialized.
+ llvm::Deserializer::Location SelectorBlkLoc = Dezr.getCurrentBlockLocation();
+ Dezr.SkipBlock();
+
+ // Read the identifier table.
+ IdentifierTable::CreateAndRegister(Dezr);
+
+ // Now jump back and read the selectors.
+ Dezr.JumpTo(SelectorBlkLoc);
+ SelectorTable::CreateAndRegister(Dezr);
+
+ // Now jump back to ASTContextBlock and read the ASTContext.
+ Dezr.JumpTo(ASTContextBlockLoc);
+ return Dezr.ReadOwnedPtr<ASTContext>();
+}
+
ASTContext* ASTContext::Create(llvm::Deserializer& D) {
// Read the language options.