Add initial cut at CompilerInvocation::toArgs, which "serializes" the CompilerInvocation into a list of arguments which can be passed to clang-cc (eventually, clang -cc1).

 - Unfortunately, this is currently a tedious and manual translation. Eventually it would be nice to automatically generate this code.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@89049 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 23 insertions, 0 deletions

diff --git a/include/clang/Frontend/CompilerInvocation.h b/include/clang/Frontend/CompilerInvocation.h
index 33234ec898..9d068c523c 100644
--- a/include/clang/Frontend/CompilerInvocation.h
+++ b/include/clang/Frontend/CompilerInvocation.h
@@ -20,8 +20,14 @@
 #include "clang/Frontend/HeaderSearchOptions.h"
 #include "clang/Frontend/PreprocessorOptions.h"
 #include "clang/Frontend/PreprocessorOutputOptions.h"
+#include "llvm/ADT/StringRef.h"
 #include "llvm/ADT/StringMap.h"
 #include <string>
+#include <vector>
+
+namespace llvm {
+  template<typename T> class SmallVectorImpl;
+}
 
 namespace clang {
 
@@ -65,6 +71,23 @@ class CompilerInvocation {
 public:
   CompilerInvocation() {}
 
+  /// @name Utility Methods
+  /// @{
+
+  /// CreateFromArgs - Create a compiler invocation from a list of input
+  /// options.
+  ///
+  /// FIXME: Documenting error behavior.
+  ///
+  /// \param Res [out] - The resulting invocation.
+  /// \param Args - The input argument strings.
+  static void CreateFromArgs(CompilerInvocation &Res,
+                            const llvm::SmallVectorImpl<llvm::StringRef> &Args);
+
+  /// toArgs - Convert the CompilerInvocation to a list of strings suitable for
+  /// passing to CreateFromArgs.
+  void toArgs(std::vector<std::string> &Res);
+
   /// @}
   /// @name Option Subgroups
   /// @{