Parser support for #pragma clang __debug captured

This patch implements parsing ‘#pragma clang __debug’ as a first step for
implementing captured statements. Captured statements are a mechanism for
doing outlining in the AST.
see http://lists.cs.uiuc.edu/pipermail/cfe-dev/2013-January/027540.html.

Currently returns StmtEmpty

Author: Andy Zhang <andy.zhang@intel.com>

Differential Revision: http://llvm-reviews.chandlerc.com/D369

llvm-svn: 179614

1 files changed, 15 insertions, 0 deletions

diff --git a/clang/lib/Parse/ParsePragma.cpp b/clang/lib/Parse/ParsePragma.cpp
index dc6b3ed4fa9..038636d1080 100644
--- a/clang/lib/Parse/ParsePragma.cpp
+++ b/clang/lib/Parse/ParsePragma.cpp
@@ -122,6 +122,19 @@ void Parser::HandlePragmaFPContract() {
   ConsumeToken(); // The annotation token.
 }
 
+StmtResult Parser::HandlePragmaCaptured()
+{
+  assert(Tok.is(tok::annot_pragma_captured));
+  ConsumeToken();
+
+  if (Tok.isNot(tok::l_brace)) {
+    PP.Diag(Tok, diag::err_expected_lbrace);
+    return StmtError();
+  }
+
+  return StmtEmpty();
+}
+
 namespace {
   typedef llvm::PointerIntPair<IdentifierInfo *, 1, bool> OpenCLExtData;
 }
@@ -151,6 +164,8 @@ void Parser::HandlePragmaOpenCLExtension() {
   }
 }
 
+
+
 // #pragma GCC visibility comes in two variants:
 //   'push' '(' [visibility] ')'
 //   'pop'