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// 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 RUNTIME_VM_FLAGS_H_
#define RUNTIME_VM_FLAGS_H_
#include "platform/assert.h"
#include "vm/flag_list.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::RegisterFlagHandler(handler, #name, comment);
#define DEFINE_OPTION_HANDLER(handler, name, comment) \
bool DUMMY_##name = Flags::RegisterOptionHandler(handler, #name, comment);
namespace dart {
typedef void (*FlagHandler)(bool value);
typedef void (*OptionHandler)(const char* value);
// Forward declarations.
class Flag;
class JSONArray;
class JSONStream;
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 uint64_t Register_uint64_t(uint64_t* addr,
const char* name,
uint64_t default_value,
const char* comment);
static const char* Register_charp(charp* addr,
const char* name,
const char* default_value,
const char* comment);
static bool RegisterFlagHandler(FlagHandler handler,
const char* name,
const char* comment);
static bool RegisterOptionHandler(OptionHandler handler,
const char* name,
const char* comment);
static char* ProcessCommandLineFlags(int argc, const char** argv);
static Flag* Lookup(const char* name);
static bool IsSet(const char* name);
static bool Initialized() { return initialized_; }
static void Cleanup();
#ifndef PRODUCT
static void PrintJSON(JSONStream* js);
#endif // !PRODUCT
static bool SetFlag(const char* name, const char* value, const char** error);
private:
static Flag** flags_;
static intptr_t capacity_;
static intptr_t num_flags_;
static bool initialized_;
static void AddFlag(Flag* flag);
static bool SetFlagFromString(Flag* flag, const char* argument);
static void Parse(const char* option);
static int CompareFlagNames(const void* left, const void* right);
static void PrintFlags();
#ifndef PRODUCT
static void PrintFlagToJSONArray(JSONArray* jsarr, const Flag* flag);
#endif // !PRODUCT
// Testing needs direct access to private methods.
friend void Dart_TestParseFlags();
DISALLOW_ALLOCATION();
DISALLOW_IMPLICIT_CONSTRUCTORS(Flags);
};
#define PRODUCT_FLAG_MARCO(name, type, default_value, comment) \
extern type FLAG_##name;
#if defined(DEBUG)
#define DEBUG_FLAG_MARCO(name, type, default_value, comment) \
extern type FLAG_##name;
#else // defined(DEBUG)
#define DEBUG_FLAG_MARCO(name, type, default_value, comment) \
const type FLAG_##name = default_value;
#endif // defined(DEBUG)
#if defined(PRODUCT) && defined(DART_PRECOMPILED_RUNTIME)
#define RELEASE_FLAG_MARCO(name, product_value, type, default_value, comment) \
const type FLAG_##name = product_value;
#define PRECOMPILE_FLAG_MARCO(name, precompiled_value, product_value, type, \
default_value, comment) \
const type FLAG_##name = precompiled_value;
#elif defined(PRODUCT) // !PRECOMPILED
#define RELEASE_FLAG_MARCO(name, product_value, type, default_value, comment) \
const type FLAG_##name = product_value;
#define PRECOMPILE_FLAG_MARCO(name, precompiled_value, product_value, type, \
default_value, comment) \
const type FLAG_##name = product_value;
#elif defined(DART_PRECOMPILED_RUNTIME) // !PRODUCT
#define RELEASE_FLAG_MARCO(name, product_value, type, default_value, comment) \
extern type FLAG_##name;
#define PRECOMPILE_FLAG_MARCO(name, precompiled_value, product_value, type, \
default_value, comment) \
const type FLAG_##name = precompiled_value;
#else // !PRODUCT && !PRECOMPILED
#define RELEASE_FLAG_MARCO(name, product_value, type, default_value, comment) \
extern type FLAG_##name;
#define PRECOMPILE_FLAG_MARCO(name, precompiled_value, product_value, type, \
default_value, comment) \
extern type FLAG_##name;
#endif
// Now declare all flags here.
FLAG_LIST(PRODUCT_FLAG_MARCO,
RELEASE_FLAG_MARCO,
DEBUG_FLAG_MARCO,
PRECOMPILE_FLAG_MARCO)
#undef RELEASE_FLAG_MARCO
#undef DEBUG_FLAG_MARCO
#undef PRODUCT_FLAG_MARCO
#undef PRECOMPILE_FLAG_MARCO
} // namespace dart
#endif // RUNTIME_VM_FLAGS_H_