| // Copyright (c) 2012, the Dart project authors. Please see the AUTHORS file |
| // for details. All rights reserved. Use of this source code is governed by a |
| // BSD-style license that can be found in the LICENSE file. |
| |
| #ifndef VM_FLAGS_H_ |
| #define VM_FLAGS_H_ |
| |
| #include "platform/assert.h" |
| #include "vm/globals.h" |
| |
| typedef const char* charp; |
| |
| #define DECLARE_FLAG(type, name) \ |
| extern type FLAG_##name |
| |
| #define DEFINE_FLAG(type, name, default_value, comment) \ |
| type FLAG_##name = Flags::Register_##type(&FLAG_##name, \ |
| #name, \ |
| default_value, \ |
| comment) |
| |
| #define DEFINE_FLAG_HANDLER(handler, name, comment) \ |
| bool DUMMY_##name = Flags::Register_func(handler, #name, comment) |
| |
| |
| #if defined(DEBUG) |
| #define DECLARE_DEBUG_FLAG(type, name) DECLARE_FLAG(type, name) |
| #define DEFINE_DEBUG_FLAG(type, name, default_value, comment) \ |
| DEFINE_FLAG(type, name, default_value, comment) |
| #else |
| #define DECLARE_DEBUG_FLAG(type, name) |
| #define DEFINE_DEBUG_FLAG(type, name, default_value, comment) |
| #endif |
| |
| namespace dart { |
| |
| typedef void (*FlagHandler)(bool value); |
| |
| // Forward declaration. |
| class Flag; |
| |
| class Flags { |
| public: |
| static bool Register_bool(bool* addr, |
| const char* name, |
| bool default_value, |
| const char* comment); |
| |
| static int Register_int(int* addr, |
| const char* name, |
| int default_value, |
| const char* comment); |
| |
| static const char* Register_charp(charp* addr, |
| const char* name, |
| const char* default_value, |
| const char* comment); |
| |
| static bool Register_func(FlagHandler handler, |
| const char* name, |
| const char* comment); |
| |
| static bool ProcessCommandLineFlags(int argc, const char** argv); |
| |
| static Flag* Lookup(const char* name); |
| |
| static bool Initialized() { return initialized_; } |
| |
| private: |
| static Flag* flags_; |
| |
| static bool initialized_; |
| |
| static void Parse(const char* option); |
| |
| static int CompareFlagNames(const void* left, const void* right); |
| |
| static void PrintFlags(); |
| |
| // Testing needs direct access to private methods. |
| friend void Dart_TestParseFlags(); |
| |
| DISALLOW_ALLOCATION(); |
| DISALLOW_IMPLICIT_CONSTRUCTORS(Flags); |
| }; |
| |
| } // namespace dart |
| |
| #endif // VM_FLAGS_H_ |