Add #pragma clang module begin/end pragmas and generate them when preprocessing a module.

These pragmas are intended to simulate the effect of entering or leaving a file
with an associated module. This is not completely implemented yet: declarations
between the pragmas will not be attributed to the correct module, but macro
visibility is already functional.

Modules named by #pragma clang module begin must already be known to clang (in
some module map that's either loaded or on the search path).

llvm-svn: 302098

1 files changed, 1 insertions, 1 deletions

diff --git a/clang/lib/Lex/PPMacroExpansion.cpp b/clang/lib/Lex/PPMacroExpansion.cpp
index 196223981d7..6c7663994a4 100644
--- a/clang/lib/Lex/PPMacroExpansion.cpp
+++ b/clang/lib/Lex/PPMacroExpansion.cpp
@@ -1453,7 +1453,7 @@ static bool EvaluateHasIncludeNext(Token &Tok,
   } else if (PP.isInPrimaryFile()) {
     Lookup = nullptr;
     PP.Diag(Tok, diag::pp_include_next_in_primary);
-  } else if (PP.getCurrentSubmodule()) {
+  } else if (PP.getCurrentLexerSubmodule()) {
     // Start looking up in the directory *after* the one in which the current
     // file would be found, if any.
     assert(PP.getCurrentLexer() && "#include_next directive in macro?");