Add another terrible VC++ compatibility hack: allow users to
allow invalid token pastes (when in -fms-extensions mode)
with -Wno-invalid-token-paste
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@108624 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Lex/TokenLexer.cpp b/lib/Lex/TokenLexer.cpp
index 56bb073..5560949 100644
--- a/lib/Lex/TokenLexer.cpp
+++ b/lib/Lex/TokenLexer.cpp
@@ -478,7 +478,7 @@
return true;
}
- // Do not emit the warning when preprocessing assembler code.
+ // Do not emit the error when preprocessing assembler code.
if (!PP.getLangOptions().AsmPreprocessor) {
// Explicitly convert the token location to have proper instantiation
// information so that the user knows where it came from.
@@ -486,7 +486,12 @@
SourceLocation Loc =
SM.createInstantiationLoc(PasteOpLoc, InstantiateLocStart,
InstantiateLocEnd, 2);
- PP.Diag(Loc, diag::err_pp_bad_paste)
+ // If we're in microsoft extensions mode, downgrade this from a hard
+ // error to a warning that defaults to an error. This allows
+ // disabling it.
+ PP.Diag(Loc,
+ PP.getLangOptions().Microsoft ? diag::err_pp_bad_paste_ms
+ : diag::err_pp_bad_paste)
<< std::string(Buffer.begin(), Buffer.end());
}