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The removal of these macros enabled cppcheck to reveal new errors. These errors are also fixed by the patch. JerryScript-DCO-1.0-Signed-off-by: Robert Fancsik frobert@inf.u-szeged.hu
157 lines
5.4 KiB
C
157 lines
5.4 KiB
C
/* Copyright JS Foundation and other contributors, http://js.foundation
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef JRT_H
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#define JRT_H
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#include <stdio.h>
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#include <string.h>
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#include "config.h"
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#include "jerryscript-port.h"
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#include "jrt-types.h"
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/*
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* Constants
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*/
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#define JERRY_BITSINBYTE 8
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/*
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* Make sure unused parameters, variables, or expressions trigger no compiler warning.
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*/
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#define JERRY_UNUSED(x) ((void) (x))
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#define JERRY_UNUSED_1(_1) JERRY_UNUSED (_1)
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#define JERRY_UNUSED_2(_1, _2) JERRY_UNUSED (_1), JERRY_UNUSED_1 (_2)
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#define JERRY_UNUSED_3(_1, _2, _3) JERRY_UNUSED (_1), JERRY_UNUSED_2 (_2, _3)
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#define JERRY_UNUSED_4(_1, _2, _3, _4) JERRY_UNUSED (_1), JERRY_UNUSED_3 (_2, _3, _4)
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#define JERRY_UNUSED_5(_1, _2, _3, _4, _5) JERRY_UNUSED (_1), JERRY_UNUSED_4 (_2, _3, _4, _5)
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#define JERRY_UNUSED_6(_1, _2, _3, _4, _5, _6) JERRY_UNUSED (_1), JERRY_UNUSED_5 (_2, _3, _4, _5, _6)
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#define JERRY_UNUSED_7(_1, _2, _3, _4, _5, _6, _7) JERRY_UNUSED (_1), JERRY_UNUSED_6 (_2, _3, _4, _5, _6, _7)
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#define JERRY_UNUSED_8(_1, _2, _3, _4, _5, _6, _7, _8) JERRY_UNUSED (_1), JERRY_UNUSED_7 (_2, _3, _4, _5, _6, _7, _8)
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#define JERRY_VA_ARGS_NUM_IMPL(_1, _2, _3, _4, _5, _6, _7, _8, N, ...) N
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#define JERRY_VA_ARGS_NUM(...) JERRY_VA_ARGS_NUM_IMPL (__VA_ARGS__, 8, 7, 6, 5, 4, 3, 2, 1, 0)
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#define JERRY_UNUSED_ALL_IMPL_(nargs) JERRY_UNUSED_ ## nargs
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#define JERRY_UNUSED_ALL_IMPL(nargs) JERRY_UNUSED_ALL_IMPL_ (nargs)
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#define JERRY_UNUSED_ALL(...) JERRY_UNUSED_ALL_IMPL (JERRY_VA_ARGS_NUM (__VA_ARGS__)) (__VA_ARGS__)
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/*
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* Asserts
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*
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* Warning:
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* Don't use JERRY_STATIC_ASSERT in headers, because
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* __LINE__ may be the same for asserts in a header
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* and in an implementation file.
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*/
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#define JERRY_STATIC_ASSERT_GLUE_(a, b, c) a ## b ## _ ## c
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#define JERRY_STATIC_ASSERT_GLUE(a, b, c) JERRY_STATIC_ASSERT_GLUE_ (a, b, c)
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#define JERRY_STATIC_ASSERT(x, msg) \
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enum { JERRY_STATIC_ASSERT_GLUE (static_assertion_failed_, __LINE__, msg) = 1 / (!!(x)) }
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#ifndef JERRY_NDEBUG
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void JERRY_ATTR_NORETURN
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jerry_assert_fail (const char *assertion, const char *file, const char *function, const uint32_t line);
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void JERRY_ATTR_NORETURN
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jerry_unreachable (const char *file, const char *function, const uint32_t line);
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#define JERRY_ASSERT(x) \
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do \
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{ \
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if (JERRY_UNLIKELY (!(x))) \
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{ \
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jerry_assert_fail (#x, __FILE__, __func__, __LINE__); \
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} \
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} while (0)
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#define JERRY_UNREACHABLE() \
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do \
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{ \
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jerry_unreachable (__FILE__, __func__, __LINE__); \
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} while (0)
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#else /* JERRY_NDEBUG */
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#define JERRY_ASSERT(x) \
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do \
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{ \
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if (false) \
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{ \
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JERRY_UNUSED (x); \
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} \
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} while (0)
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#ifdef __GNUC__
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#define JERRY_UNREACHABLE() __builtin_unreachable ()
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#endif /* __GNUC__ */
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#ifdef _MSC_VER
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#define JERRY_UNREACHABLE() _assume (0)
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#endif /* _MSC_VER */
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#ifndef JERRY_UNREACHABLE
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#define JERRY_UNREACHABLE()
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#endif /* !JERRY_UNREACHABLE */
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#endif /* !JERRY_NDEBUG */
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/**
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* Exit on fatal error
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*/
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void JERRY_ATTR_NORETURN jerry_fatal (jerry_fatal_code_t code);
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/*
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* Logging
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*/
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#if JERRY_LOGGING
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#define JERRY_ERROR_MSG(...) jerry_port_log (JERRY_LOG_LEVEL_ERROR, __VA_ARGS__)
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#define JERRY_WARNING_MSG(...) jerry_port_log (JERRY_LOG_LEVEL_WARNING, __VA_ARGS__)
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#define JERRY_DEBUG_MSG(...) jerry_port_log (JERRY_LOG_LEVEL_DEBUG, __VA_ARGS__)
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#define JERRY_TRACE_MSG(...) jerry_port_log (JERRY_LOG_LEVEL_TRACE, __VA_ARGS__)
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#else /* !JERRY_LOGGING */
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#define JERRY_ERROR_MSG(...) do { if (false) { JERRY_UNUSED_ALL (__VA_ARGS__); } } while (0)
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#define JERRY_WARNING_MSG(...) do { if (false) { JERRY_UNUSED_ALL (__VA_ARGS__); } } while (0)
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#define JERRY_DEBUG_MSG(...) do { if (false) { JERRY_UNUSED_ALL (__VA_ARGS__); } } while (0)
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#define JERRY_TRACE_MSG(...) do { if (false) { JERRY_UNUSED_ALL (__VA_ARGS__); } } while (0)
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#endif /* JERRY_LOGGING */
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/**
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* Size of struct member
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*/
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#define JERRY_SIZE_OF_STRUCT_MEMBER(struct_name, member_name) sizeof (((struct_name *) NULL)->member_name)
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/**
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* Aligns @a value to @a alignment. @a must be the power of 2.
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*
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* Returns minimum positive value, that divides @a alignment and is more than or equal to @a value
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*/
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#define JERRY_ALIGNUP(value, alignment) (((value) + ((alignment) - 1)) & ~((alignment) - 1))
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/*
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* min, max
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*/
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#define JERRY_MIN(v1, v2) (((v1) < (v2)) ? (v1) : (v2))
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#define JERRY_MAX(v1, v2) (((v1) < (v2)) ? (v2) : (v1))
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/**
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* Calculate the index of the first non-zero bit of a 32 bit integer value
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*/
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#define JERRY__LOG2_1(n) (((n) >= 2) ? 1 : 0)
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#define JERRY__LOG2_2(n) (((n) >= 1 << 2) ? (2 + JERRY__LOG2_1 ((n) >> 2)) : JERRY__LOG2_1 (n))
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#define JERRY__LOG2_4(n) (((n) >= 1 << 4) ? (4 + JERRY__LOG2_2 ((n) >> 4)) : JERRY__LOG2_2 (n))
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#define JERRY__LOG2_8(n) (((n) >= 1 << 8) ? (8 + JERRY__LOG2_4 ((n) >> 8)) : JERRY__LOG2_4 (n))
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#define JERRY_LOG2(n) (((n) >= 1 << 16) ? (16 + JERRY__LOG2_8 ((n) >> 16)) : JERRY__LOG2_8 (n))
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#endif /* !JRT_H */
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