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authorArgyrios Kyrtzidis <akyrtzi@gmail.com>2012-03-22 16:08:04 +0000
committerArgyrios Kyrtzidis <akyrtzi@gmail.com>2012-03-22 16:08:04 +0000
commit643586fe4fcd42b0978efd3566832ab4dce50367 (patch)
tree4de2bfcbba7f4c7eff9fc2b3af726f917a4e2219 /lib/Serialization/ASTWriterDecl.cpp
parent86029ea254a3a54834940787e58adc55d93c695f (diff)
[PCH] When we are replacing a decl in a chained PCH that is also a DeclContext,
make sure to fully load its external lexical and visible declarations before re-writing it. rdar://10914192 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@153254 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Serialization/ASTWriterDecl.cpp')
-rw-r--r--lib/Serialization/ASTWriterDecl.cpp37
1 files changed, 24 insertions, 13 deletions
diff --git a/lib/Serialization/ASTWriterDecl.cpp b/lib/Serialization/ASTWriterDecl.cpp
index d7cc850a80..7a4ef63bb3 100644
--- a/lib/Serialization/ASTWriterDecl.cpp
+++ b/lib/Serialization/ASTWriterDecl.cpp
@@ -12,6 +12,7 @@
//===----------------------------------------------------------------------===//
#include "clang/Serialization/ASTWriter.h"
+#include "clang/Serialization/ASTReader.h"
#include "ASTCommon.h"
#include "clang/AST/DeclVisitor.h"
#include "clang/AST/DeclCXX.h"
@@ -1640,6 +1641,20 @@ void ASTWriter::WriteDecl(ASTContext &Context, Decl *D) {
RecordData Record;
ASTDeclWriter W(*this, Context, Record);
+ // Determine the ID for this declaration.
+ serialization::DeclID ID;
+ if (D->isFromASTFile())
+ ID = getDeclID(D);
+ else {
+ serialization::DeclID &IDR = DeclIDs[D];
+ if (IDR == 0)
+ IDR = NextDeclID++;
+
+ ID= IDR;
+ }
+
+ bool isReplacingADecl = ID < FirstDeclID;
+
// If this declaration is also a DeclContext, write blocks for the
// declarations that lexically stored inside its context and those
// declarations that are visible from its context. These blocks
@@ -1649,23 +1664,19 @@ void ASTWriter::WriteDecl(ASTContext &Context, Decl *D) {
uint64_t VisibleOffset = 0;
DeclContext *DC = dyn_cast<DeclContext>(D);
if (DC) {
+ if (isReplacingADecl) {
+ // It is replacing a decl from a chained PCH; make sure that the
+ // DeclContext is fully loaded.
+ if (DC->hasExternalLexicalStorage())
+ DC->LoadLexicalDeclsFromExternalStorage();
+ if (DC->hasExternalVisibleStorage())
+ Chain->completeVisibleDeclsMap(DC);
+ }
LexicalOffset = WriteDeclContextLexicalBlock(Context, DC);
VisibleOffset = WriteDeclContextVisibleBlock(Context, DC);
}
-
- // Determine the ID for this declaration.
- serialization::DeclID ID;
- if (D->isFromASTFile())
- ID = getDeclID(D);
- else {
- serialization::DeclID &IDR = DeclIDs[D];
- if (IDR == 0)
- IDR = NextDeclID++;
-
- ID= IDR;
- }
- if (ID < FirstDeclID) {
+ if (isReplacingADecl) {
// We're replacing a decl in a previous file.
ReplacedDecls.push_back(ReplacedDeclInfo(ID, Stream.GetCurrentBitNo(),
D->getLocation()));