Add a stub frontend action for BoostCon, for next week's workshop.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@103258 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Frontend/BoostConAction.cpp b/lib/Frontend/BoostConAction.cpp
new file mode 100644
index 0000000..9e4f97d
--- /dev/null
+++ b/lib/Frontend/BoostConAction.cpp
@@ -0,0 +1,29 @@
+//===-- BoostConAction.cpp - BoostCon Workshop Action -----------*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+#include "clang/Frontend/FrontendActions.h"
+#include "clang/AST/ASTConsumer.h"
+using namespace clang;
+
+namespace {
+  class BoostConASTConsumer : public ASTConsumer {
+  public:
+    /// HandleTranslationUnit - This method is called when the ASTs for entire
+    /// translation unit have been parsed.
+    virtual void HandleTranslationUnit(ASTContext &Ctx);
+  };
+}
+
+ASTConsumer *BoostConAction::CreateASTConsumer(CompilerInstance &CI,
+                                               llvm::StringRef InFile) {
+  return new BoostConASTConsumer();
+}
+
+void BoostConASTConsumer::HandleTranslationUnit(ASTContext &Ctx) {
+  fprintf(stderr, "Welcome to BoostCon!\n");
+}
diff --git a/lib/Frontend/CMakeLists.txt b/lib/Frontend/CMakeLists.txt
index b6f1b0d..01592d1 100644
--- a/lib/Frontend/CMakeLists.txt
+++ b/lib/Frontend/CMakeLists.txt
@@ -5,6 +5,7 @@
   ASTMerge.cpp
   ASTUnit.cpp
   AnalysisConsumer.cpp
+  BoostConAction.cpp
   CacheTokens.cpp
   CodeGenAction.cpp
   CompilerInstance.cpp
diff --git a/lib/Frontend/CompilerInvocation.cpp b/lib/Frontend/CompilerInvocation.cpp
index 92f33d0..dca607e 100644
--- a/lib/Frontend/CompilerInvocation.cpp
+++ b/lib/Frontend/CompilerInvocation.cpp
@@ -308,6 +308,7 @@
   case frontend::ASTPrint:               return "-ast-print";
   case frontend::ASTPrintXML:            return "-ast-print-xml";
   case frontend::ASTView:                return "-ast-view";
+  case frontend::BoostCon:               return "-boostcon";
   case frontend::DumpRawTokens:          return "-dump-raw-tokens";
   case frontend::DumpTokens:             return "-dump-tokens";
   case frontend::EmitAssembly:           return "-S";
@@ -937,6 +938,8 @@
       Opts.ProgramAction = frontend::ASTPrintXML; break;
     case OPT_ast_view:
       Opts.ProgramAction = frontend::ASTView; break;
+    case OPT_boostcon:
+      Opts.ProgramAction = frontend::BoostCon; break;
     case OPT_dump_raw_tokens:
       Opts.ProgramAction = frontend::DumpRawTokens; break;
     case OPT_dump_tokens: