Support importing of ObjC categories from modules.
The initial incentive was to fix a crash when PCH chaining categories
to an interface, but the fix was done in the "modules way" that I hear
is popular with the kids these days.
Each module stores the local chain of categories and we combine them
when the interface is loaded. We also warn if non-dependent modules
introduce duplicate named categories.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@138926 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/include/clang/Serialization/ASTBitCodes.h b/include/clang/Serialization/ASTBitCodes.h
index 166a7b9..4c8eb28 100644
--- a/include/clang/Serialization/ASTBitCodes.h
+++ b/include/clang/Serialization/ASTBitCodes.h
@@ -64,6 +64,11 @@
/// \brief a Decl::Kind/DeclID pair.
typedef std::pair<uint32_t, DeclID> KindDeclIDPair;
+ // FIXME: Turn these into classes so we can have some type safety when
+ // we go from local ID to global and vice-versa.
+ typedef DeclID LocalDeclID;
+ typedef DeclID GlobalDeclID;
+
/// \brief An ID number that refers to a type in an AST file.
///
/// The ID of a type is partitioned into two parts: the lower
@@ -402,7 +407,11 @@
/// \brief Record code for the source manager line table information,
/// which stores information about #line directives.
- SOURCE_MANAGER_LINE_TABLE = 48
+ SOURCE_MANAGER_LINE_TABLE = 48,
+
+ /// \brief Record code for ObjC categories in a module that are chained to
+ /// an interface.
+ OBJC_CHAINED_CATEGORIES
};
/// \brief Record types used within a source manager block.