blob: f9d88f0ba6904bdc78c1ac1ef79b186721998ae0 [file] [log] [blame]
// 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_