pebble/third_party/jerryscript/jerry-core/jrt/jrt.h

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/* Copyright 2014-2016 Samsung Electronics Co., Ltd.
* Copyright 2016 University of Szeged.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef JRT_H
#define JRT_H
#include <stdio.h>
#include <string.h>
#include "jerry-api.h"
#include "jerry-port.h"
#include "jrt-types.h"
/*
* Attributes
*/
#define __noreturn __attribute__((noreturn))
#define __attr_noinline___ __attribute__((noinline))
#define __attr_return_value_should_be_checked___ __attribute__((warn_unused_result))
#define __attr_hot___ __attribute__((hot))
#ifndef __attr_always_inline___
# define __attr_always_inline___ __attribute__((always_inline))
#endif /* !__attr_always_inline___ */
#ifndef __attr_const___
# define __attr_const___ __attribute__((const))
#endif /* !__attr_const___ */
#ifndef __attr_pure___
# define __attr_pure___ __attribute__((pure))
#endif /* !__attr_pure___ */
/*
* Conditions' likeliness, unlikeliness.
*/
#define likely(x) __builtin_expect (!!(x), 1)
#define unlikely(x) __builtin_expect (!!(x) , 0)
/*
* Normally compilers store const(ant)s in ROM. Thus saving RAM.
* But if your compiler does not support it then the directive below can force it.
*
* For the moment it is mainly meant for the following targets:
* - ESP8266
*/
#ifndef JERRY_CONST_DATA
# define JERRY_CONST_DATA
#endif /* JERRY_CONST_DATA */
/*
* Constants
*/
#define JERRY_BITSINBYTE 8
/*
* Make sure unused parameters, variables, or expressions trigger no compiler warning.
*/
#define JERRY_UNUSED(x) ((void) (x))
/*
* Asserts
*
* Warning:
* Don't use JERRY_STATIC_ASSERT in headers, because
* __LINE__ may be the same for asserts in a header
* and in an implementation file.
*/
#define JERRY_STATIC_ASSERT_GLUE_(a, b, c) a ## b ## _ ## c
#define JERRY_STATIC_ASSERT_GLUE(a, b, c) JERRY_STATIC_ASSERT_GLUE_ (a, b, c)
#define JERRY_STATIC_ASSERT(x, msg) \
enum { JERRY_STATIC_ASSERT_GLUE (static_assertion_failed_, __LINE__, msg) = 1 / (!!(x)) }
#ifndef JERRY_NDEBUG
extern void __noreturn jerry_assert_fail (const char *, const char *, const char *, const uint32_t);
extern void __noreturn jerry_unreachable (const char *, const char *, const uint32_t);
#define JERRY_ASSERT(x) \
do \
{ \
if (unlikely (!(x))) \
{ \
jerry_assert_fail (#x, __FILE__, __func__, __LINE__); \
} \
} while (0)
#define JERRY_UNREACHABLE() \
do \
{ \
jerry_unreachable (__FILE__, __func__, __LINE__); \
} while (0)
#else /* JERRY_NDEBUG */
#define JERRY_ASSERT(x) \
do \
{ \
if (false) \
{ \
JERRY_UNUSED (x); \
} \
} while (0)
#define JERRY_UNREACHABLE() __builtin_unreachable ()
#endif /* !JERRY_NDEBUG */
/**
* Return address / LR, passed to jerry_port_fatal() calls, to aid with debugging.
*/
#ifndef JERRY_RETURN_ADDRESS
#define JERRY_RETURN_ADDRESS __builtin_return_address(0)
#endif
/**
* Exit on fatal error
*/
extern void __noreturn jerry_fatal (jerry_fatal_code_t);
/*
* Logging
*/
#define JERRY_ERROR_MSG(...) jerry_port_log (JERRY_LOG_LEVEL_ERROR, __VA_ARGS__)
#define JERRY_WARNING_MSG(...) jerry_port_log (JERRY_LOG_LEVEL_WARNING, __VA_ARGS__)
#define JERRY_DEBUG_MSG(...) jerry_port_log (JERRY_LOG_LEVEL_DEBUG, __VA_ARGS__)
#define JERRY_TRACE_MSG(...) jerry_port_log (JERRY_LOG_LEVEL_TRACE, __VA_ARGS__)
/**
* Size of struct member
*/
#define JERRY_SIZE_OF_STRUCT_MEMBER(struct_name, member_name) sizeof (((struct_name *) NULL)->member_name)
/**
* Aligns @a value to @a alignment. @a must be the power of 2.
*
* Returns minimum positive value, that divides @a alignment and is more than or equal to @a value
*/
#define JERRY_ALIGNUP(value, alignment) (((value) + (((uintptr_t)alignment) - 1)) & ~(((uintptr_t)alignment) - 1))
/*
* min, max
*/
#define JERRY_MIN(v1, v2) (((v1) < (v2)) ? (v1) : (v2))
#define JERRY_MAX(v1, v2) (((v1) < (v2)) ? (v2) : (v1))
#endif /* !JRT_H */