diff options
| author | Douglas Gregor <dgregor@apple.com> | 2011-07-27 05:40:30 +0000 |
|---|---|---|
| committer | Douglas Gregor <dgregor@apple.com> | 2011-07-27 05:40:30 +0000 |
| commit | 5cee1195584fa8672253139c86e922daeda69b9e (patch) | |
| tree | e1b36e0f628359bb42d22d78c74e931057b962de /lib/Lex/PPExpressions.cpp | |
| parent | 6fa8f86b8188c6d3c4d6616122a71ccd72a0c78a (diff) | |
Add support for C++0x unicode string and character literals, from Craig Topper!
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@136210 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Lex/PPExpressions.cpp')
| -rw-r--r-- | lib/Lex/PPExpressions.cpp | 16 |
1 files changed, 12 insertions, 4 deletions
diff --git a/lib/Lex/PPExpressions.cpp b/lib/Lex/PPExpressions.cpp index 08e2705ef1..25816923c8 100644 --- a/lib/Lex/PPExpressions.cpp +++ b/lib/Lex/PPExpressions.cpp @@ -236,7 +236,10 @@ static bool EvaluateValue(PPValue &Result, Token &PeekTok, DefinedTracker &DT, PP.LexNonComment(PeekTok); return false; } - case tok::char_constant: { // 'x' + case tok::char_constant: // 'x' + case tok::wide_char_constant: { // L'x' + case tok::utf16_char_constant: // u'x' + case tok::utf32_char_constant: // U'x' llvm::SmallString<32> CharBuffer; bool CharInvalid = false; StringRef ThisTok = PP.getSpelling(PeekTok, CharBuffer, &CharInvalid); @@ -244,7 +247,7 @@ static bool EvaluateValue(PPValue &Result, Token &PeekTok, DefinedTracker &DT, return true; CharLiteralParser Literal(ThisTok.begin(), ThisTok.end(), - PeekTok.getLocation(), PP); + PeekTok.getLocation(), PP, PeekTok.getKind()); if (Literal.hadError()) return true; // A diagnostic was already emitted. @@ -255,6 +258,10 @@ static bool EvaluateValue(PPValue &Result, Token &PeekTok, DefinedTracker &DT, NumBits = TI.getIntWidth(); else if (Literal.isWide()) NumBits = TI.getWCharWidth(); + else if (Literal.isUTF16()) + NumBits = TI.getChar16Width(); + else if (Literal.isUTF32()) + NumBits = TI.getChar32Width(); else NumBits = TI.getCharWidth(); @@ -262,8 +269,9 @@ static bool EvaluateValue(PPValue &Result, Token &PeekTok, DefinedTracker &DT, llvm::APSInt Val(NumBits); // Set the value. Val = Literal.getValue(); - // Set the signedness. - Val.setIsUnsigned(!PP.getLangOptions().CharIsSigned); + // Set the signedness. UTF-16 and UTF-32 are always unsigned + if (!Literal.isUTF16() && !Literal.isUTF32()) + Val.setIsUnsigned(!PP.getLangOptions().CharIsSigned); if (Result.Val.getBitWidth() > Val.getBitWidth()) { Result.Val = Val.extend(Result.Val.getBitWidth()); |