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| author | Chris Lattner <sabre@nondot.org> | 2009-03-23 17:32:45 +0000 |
|---|---|---|
| committer | Chris Lattner <sabre@nondot.org> | 2009-03-23 17:32:45 +0000 |
| commit | f1538de18370c202263d7d1bc326cbc2c5434e1d (patch) | |
| tree | 9d9af3edd60f7d9fa61b66f463c840b8ed80ed78 | |
| parent | 68ac94a8d7c7a967ace59c565736d07e80de77e7 (diff) | |
The individual pieces of an invalid paste as still candidates for expansion.
This matters in assembler mode, where this is silently allowed.
This fixes rdar://6709206.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@67539 91177308-0d34-0410-b5e6-96231b3b80d8
| -rw-r--r-- | lib/Lex/TokenLexer.cpp | 4 | ||||
| -rw-r--r-- | test/Preprocessor/assembler-with-cpp.c | 11 |
2 files changed, 14 insertions, 1 deletions
diff --git a/lib/Lex/TokenLexer.cpp b/lib/Lex/TokenLexer.cpp index 1935914e0e..ec48690b35 100644 --- a/lib/Lex/TokenLexer.cpp +++ b/lib/Lex/TokenLexer.cpp @@ -448,7 +448,9 @@ bool TokenLexer::PasteTokens(Token &Tok) { if (!PP.getLangOptions().AsmPreprocessor) PP.Diag(PasteOpLoc, diag::err_pp_bad_paste) << std::string(Buffer.begin(), Buffer.end()-1); - return false; + + // Do not consume the RHS. + --CurToken; } // Turn ## into 'unknown' to avoid # ## # from looking like a paste diff --git a/test/Preprocessor/assembler-with-cpp.c b/test/Preprocessor/assembler-with-cpp.c index 2f520ecf07..ecb77e5f96 100644 --- a/test/Preprocessor/assembler-with-cpp.c +++ b/test/Preprocessor/assembler-with-cpp.c @@ -33,4 +33,15 @@ // RUN: grep "4: ''" %t && 4: '' + +// Portions of invalid pasting should still expand as macros. +// rdar://6709206 +// RUN: grep "5: expanded (" %t && +#define M4 expanded +#define M5() M4 ## ( + +5: M5() + + + // RUN: true |