Make clang-tblgen backends functions instead of TableGenBackends.

Get rid of a bunch of header files. TableGen output should be unaffected.

Patch by Sean Silva!

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@158388 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 9 insertions, 4 deletions

diff --git a/utils/TableGen/OptParserEmitter.cpp b/utils/TableGen/OptParserEmitter.cpp
index dea22d3886..b0431a9be1 100644
--- a/utils/TableGen/OptParserEmitter.cpp
+++ b/utils/TableGen/OptParserEmitter.cpp
@@ -7,8 +7,8 @@
 //
 //===----------------------------------------------------------------------===//
 
-#include "OptParserEmitter.h"
 #include "llvm/TableGen/Record.h"
+#include "llvm/TableGen/TableGenBackend.h"
 #include "llvm/ADT/STLExtras.h"
 using namespace llvm;
 
@@ -69,16 +69,20 @@ static raw_ostream &write_cstring(raw_ostream &OS, llvm::StringRef Str) {
   return OS;
 }
 
-void OptParserEmitter::run(raw_ostream &OS) {
+/// OptParserEmitter - This tablegen backend takes an input .td file
+/// describing a list of options and emits a data structure for parsing and
+/// working with those options when given an input command line.
+namespace clang {
+void EmitOptParser(RecordKeeper &Records, raw_ostream &OS, bool GenDefs) {
   // Get the option groups and options.
   const std::vector<Record*> &Groups =
     Records.getAllDerivedDefinitions("OptionGroup");
   std::vector<Record*> Opts = Records.getAllDerivedDefinitions("Option");
 
   if (GenDefs)
-    EmitSourceFileHeader("Option Parsing Definitions", OS);
+    emitSourceFileHeader("Option Parsing Definitions", OS);
   else
-    EmitSourceFileHeader("Option Parsing Table", OS);
+    emitSourceFileHeader("Option Parsing Table", OS);
 
   array_pod_sort(Opts.begin(), Opts.end(), CompareOptionRecords);
   if (GenDefs) {
@@ -192,3 +196,4 @@ void OptParserEmitter::run(raw_ostream &OS) {
     }
   }
 }
+} // end namespace clang