art: Refactor RuntimeOptions/ParsedOptions

Refactor the RuntimeOptions to be a
type-safe map (VariantMap, see runtime_options.h) and the ParsedOptions
to delegate the parsing to CmdlineParser (see cmdline/cmdline_parser.h).

This is the start of a command line parsing refactor, and may include
more in the future (dex2oat, patchoat, etc).

For more details of the command line parsing generator usage see cmdline/README.md

Change-Id: Ic67c6bca5e1f33bf2ec60e2e3ff8c366bab91563

1 files changed, 7 insertions, 0 deletions

diff --git a/runtime/utils.h b/runtime/utils.h
index b5413e75b6..1c2576c2d4 100644
--- a/runtime/utils.h
+++ b/runtime/utils.h
@@ -549,6 +549,13 @@ struct FreeDelete {
 template <typename T>
 using UniqueCPtr = std::unique_ptr<T, FreeDelete>;
 
+// C++14 from-the-future import (std::make_unique)
+// Invoke the constructor of 'T' with the provided args, and wrap the result in a unique ptr.
+template <typename T, typename ... Args>
+std::unique_ptr<T> MakeUnique(Args&& ... args) {
+  return std::unique_ptr<T>(new T(std::forward<Args>(args)...));
+}
+
 }  // namespace art
 
 #endif  // ART_RUNTIME_UTILS_H_