When writing a PCH file, keep track of all of the non-static,
non-inline external definitions (and tentative definitions) that are
found at the top level. The corresponding declarations are stored in a
record in the PCH file, so that they can be provided to the
ASTConsumer (via HandleTopLevelDecl) when the PCH file is read.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@69005 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Frontend/PCHReader.cpp b/lib/Frontend/PCHReader.cpp
index 328ed84..f5f6f5d 100644
--- a/lib/Frontend/PCHReader.cpp
+++ b/lib/Frontend/PCHReader.cpp
@@ -12,8 +12,10 @@
//===----------------------------------------------------------------------===//
#include "clang/Frontend/PCHReader.h"
#include "clang/Frontend/FrontendDiagnostic.h"
+#include "clang/AST/ASTConsumer.h"
#include "clang/AST/ASTContext.h"
#include "clang/AST/Decl.h"
+#include "clang/AST/DeclGroup.h"
#include "clang/AST/Type.h"
#include "clang/Lex/MacroInfo.h"
#include "clang/Lex/Preprocessor.h"
@@ -663,6 +665,14 @@
}
#endif
break;
+
+ case pch::EXTERNAL_DEFINITIONS:
+ if (!ExternalDefinitions.empty()) {
+ Error("Duplicate EXTERNAL_DEFINITIONS record in PCH file");
+ return Failure;
+ }
+ ExternalDefinitions.swap(Record);
+ break;
}
}
@@ -1276,6 +1286,17 @@
return false;
}
+void PCHReader::StartTranslationUnit(ASTConsumer *Consumer) {
+ if (!Consumer)
+ return;
+
+ for (unsigned I = 0, N = ExternalDefinitions.size(); I != N; ++I) {
+ Decl *D = GetDecl(ExternalDefinitions[I]);
+ DeclGroupRef DG(D);
+ Consumer->HandleTopLevelDecl(DG);
+ }
+}
+
void PCHReader::PrintStats() {
std::fprintf(stderr, "*** PCH Statistics:\n");