diff options
| -rw-r--r-- | lib/Lex/PPMacroExpansion.cpp | 40 |
1 files changed, 12 insertions, 28 deletions
diff --git a/lib/Lex/PPMacroExpansion.cpp b/lib/Lex/PPMacroExpansion.cpp index dfb14ff06f..80202ddb6d 100644 --- a/lib/Lex/PPMacroExpansion.cpp +++ b/lib/Lex/PPMacroExpansion.cpp @@ -18,6 +18,7 @@ #include "clang/Basic/SourceManager.h" #include "clang/Basic/FileManager.h" #include "clang/Lex/LexDiagnostic.h" +#include "llvm/ADT/StringSwitch.h" #include <cstdio> #include <ctime> using namespace clang; @@ -481,34 +482,17 @@ static void ComputeDATE_TIME(SourceLocation &DATELoc, SourceLocation &TIMELoc, static bool HasFeature(const Preprocessor &PP, const IdentifierInfo *II) { const LangOptions &LangOpts = PP.getLangOptions(); - switch (II->getLength()) { - default: return false; - case 6: - if (II->isStr("blocks")) return LangOpts.Blocks; - return false; - case 8: - if (II->isStr("cxx_rtti")) return LangOpts.RTTI; - return false; - case 14: - if (II->isStr("cxx_exceptions")) return LangOpts.Exceptions; - return false; - case 19: - if (II->isStr("objc_nonfragile_abi")) return LangOpts.ObjCNonFragileABI; - return false; - case 22: - if (II->isStr("attribute_overloadable")) return true; - return false; - case 25: - if (II->isStr("attribute_ext_vector_type")) return true; - return false; - case 27: - if (II->isStr("attribute_analyzer_noreturn")) return true; - return false; - case 29: - if (II->isStr("attribute_ns_returns_retained")) return true; - if (II->isStr("attribute_cf_returns_retained")) return true; - return false; - } + return llvm::StringSwitch<bool>(II->getName()) + .Case("blocks", LangOpts.Blocks) + .Case("cxx_rtti", LangOpts.RTTI) + .Case("cxx_exceptions", LangOpts.Exceptions) + .Case("objc_nonfragile_abi", LangOpts.ObjCNonFragileABI) + .Case("attribute_overloadable", true) + .Case("attribute_ext_vector_type", true) + .Case("attribute_analyzer_noreturn", true) + .Case("attribute_ns_returns_retained", true) + .Case("attribute_cf_returns_retained", true) + .Default(false); } /// EvaluateHasIncludeCommon - Process a '__has_include("path")' |