Add a way to emit StringSwitch of clang attribute spellings.

llvm-svn: 116899

1 files changed, 18 insertions, 0 deletions

diff --git a/llvm/utils/TableGen/ClangAttrEmitter.cpp b/llvm/utils/TableGen/ClangAttrEmitter.cpp
index 8340ebfb1fc..db10d7906e2 100644
--- a/llvm/utils/TableGen/ClangAttrEmitter.cpp
+++ b/llvm/utils/TableGen/ClangAttrEmitter.cpp
@@ -637,3 +637,21 @@ void ClangAttrPCHWriteEmitter::run(raw_ostream &OS) {
   }
   OS << "  }\n";
 }
+
+void ClangAttrSpellingListEmitter::run(raw_ostream &OS) {
+  OS << "// This file is generated by TableGen. Do not edit.\n\n";
+
+  std::vector<Record*> Attrs = Records.getAllDerivedDefinitions("Attr");
+  
+  for (std::vector<Record*>::iterator I = Attrs.begin(), E = Attrs.end(); I != E; ++I) {
+    Record &Attr = **I;
+
+    std::vector<StringRef> Spellings = getValueAsListOfStrings(Attr, "Spellings");
+
+    for (std::vector<StringRef>::const_iterator I = Spellings.begin(), E = Spellings.end(); I != E; ++I) {
+      StringRef Spelling = *I;
+      OS << ".Case(\"" << Spelling << "\", true)\n";
+    }
+  }
+
+}