[GSoC] Flag value completion for clang

This is patch for GSoC project, bash-completion for clang.

To use this on bash, please run `source clang/utils/bash-autocomplete.sh`.
bash-autocomplete.sh is code for bash-completion.

In this patch, Options.td was mainly changed in order to add value class
in Options.inc.

llvm-svn: 305805

1 files changed, 10 insertions, 0 deletions

diff --git a/llvm/utils/TableGen/OptParserEmitter.cpp b/llvm/utils/TableGen/OptParserEmitter.cpp
index 04e6537f3d1..e3777d036a2 100644
--- a/llvm/utils/TableGen/OptParserEmitter.cpp
+++ b/llvm/utils/TableGen/OptParserEmitter.cpp
@@ -196,6 +196,9 @@ void EmitOptParser(RecordKeeper &Records, raw_ostream &OS) {
       OS << ", nullptr";
 
     // The option meta-variable name (unused).
+    OS << ", nullptr";
+
+    // The option Values (unused for groups).
     OS << ", nullptr)\n";
   }
   OS << "\n";
@@ -285,6 +288,13 @@ void EmitOptParser(RecordKeeper &Records, raw_ostream &OS) {
     else
       OS << "nullptr";
 
+    // The option Values. Used for shell autocompletion.
+    OS << ", ";
+    if (!isa<UnsetInit>(R.getValueInit("Values")))
+      write_cstring(OS, R.getValueAsString("Values"));
+    else
+      OS << "nullptr";
+
     OS << ")\n";
   }
   OS << "#endif // OPTION\n";