mirror of
https://github.com/jerryscript-project/jerryscript.git
synced 2025-12-15 16:29:21 +00:00
ac1c48eeff
Notable changes:
- Updated and the port API interface, new functions have been added
and some have been changed. The port library is now cleaned up to
not have any dependency on jerry-core, as it should be. The port library
is now strictly a collection of functions that implement
embedding/platform specific behavior.
- The default port implementation has been split for windows and unix.
Implemented port functions have been categorized and reorganized,
and marked with attribute((weak)) for better reusability.
- External context allocation has been moved to the port API instead
of a core API callback. The iterface has also been extended with a
function to free the allocated context. When external context is
enabled, jerry_init now automatically calls the port implementation
to allocate the context and jerry_cleanup automatically calls the port
to free the context.
- jerry_port_log has been changed to no longer require formatting to
be implemented by the port. The reason beind this is that it was vague what
format specifiers were used by the engine, and in what manner. The port
function now takes a zero-terminated string, and should only implement
how the string should be logged.
- Logging and log message formatting is now handled by the core jerry library
where it can be implemented as necessary. Logging can be done through a new
core API function, which uses the port to output the final log message.
- Log level has been moved into jerry-core, and an API function has
been added to set the log level. It should be the library that
filters log messages based on the requested log level, instead of
logging everything and requiring the user to do so.
- Module resolving logic has been moved into jerry-core. There's no
reason to have it in the port library and requiring embedders to
duplicate the code. It also added an unnecessary dependency on
jerry-core to the port. Platform specific behavior is still used through
the port API, like resolving module specifiers, and reading source file
contents. If necessary, the resolving logic can still be overridden as
previously.
- The jerry-ext library has also been cleaned up, and many utility
functions have been added that previously were implemented in
jerry-main. This allows easier reusability for some common operations,
like printing unhandled exceptions or providing a repl console.
- Debugger interaction with logged/printed messages has been fixed, so
that it's no longer the port implementations responsibility to send
the output to the debugger, as the port should have no notion of what a
debugger is. The printing and logging functions will now pass the
result message to the debugger, if connected.
- Cleaned up TZA handling in the date port implementation, and simplified
the API function prototype.
- Moved property access helper functions that use ASCII strings as
keys from jerry-ext to the core API.
JerryScript-DCO-1.0-Signed-off-by: Dániel Bátyai dbatyai@inf.u-szeged.hu
195 lines
5.2 KiB
C
195 lines
5.2 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 JERRYSCRIPT_COMPILER_H
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#define JERRYSCRIPT_COMPILER_H
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#ifdef __cplusplus
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#define JERRY_C_API_BEGIN extern "C" {
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#define JERRY_C_API_END }
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#else /* !__cplusplus */
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#define JERRY_C_API_BEGIN
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#define JERRY_C_API_END
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#endif /* __cplusplus */
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JERRY_C_API_BEGIN
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/** \addtogroup jerry-compiler Jerry compiler compatibility components
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* @{
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*/
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#ifdef __GNUC__
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/*
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* Compiler-specific macros relevant for GCC.
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*/
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#define JERRY_ATTR_ALIGNED(ALIGNMENT) __attribute__ ((aligned (ALIGNMENT)))
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#define JERRY_ATTR_ALWAYS_INLINE __attribute__ ((always_inline))
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#define JERRY_ATTR_CONST __attribute__ ((const))
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#define JERRY_ATTR_DEPRECATED __attribute__ ((deprecated))
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#define JERRY_ATTR_FORMAT(...) __attribute__ ((format (__VA_ARGS__)))
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#define JERRY_ATTR_HOT __attribute__ ((hot))
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#define JERRY_ATTR_NOINLINE __attribute__ ((noinline))
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#define JERRY_ATTR_NORETURN __attribute__ ((noreturn))
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#define JERRY_ATTR_PURE __attribute__ ((pure))
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#define JERRY_ATTR_WARN_UNUSED_RESULT __attribute__ ((warn_unused_result))
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#define JERRY_ATTR_WEAK __attribute__ ((weak))
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#define JERRY_WEAK_SYMBOL_SUPPORT
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#ifndef JERRY_LIKELY
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#define JERRY_LIKELY(x) __builtin_expect (!!(x), 1)
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#endif /* !JERRY_LIKELY */
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#ifndef JERRY_UNLIKELY
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#define JERRY_UNLIKELY(x) __builtin_expect (!!(x), 0)
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#endif /* !JERRY_UNLIKELY */
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#endif /* __GNUC__ */
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#ifdef _MSC_VER
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/*
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* Compiler-specific macros relevant for Microsoft Visual C/C++ Compiler.
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*/
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#define JERRY_ATTR_DEPRECATED __declspec(deprecated)
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#define JERRY_ATTR_NOINLINE __declspec(noinline)
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#define JERRY_ATTR_NORETURN __declspec(noreturn)
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/*
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* Microsoft Visual C/C++ Compiler doesn't support for VLA, using _alloca
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* instead.
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*/
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void *__cdecl _alloca (size_t _Size);
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#define JERRY_VLA(type, name, size) type *name = (type *) (_alloca (sizeof (type) * (size)))
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#endif /* _MSC_VER */
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/*
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* Default empty definitions for all compiler-specific macros. Define any of
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* these in a guarded block above (e.g., as for GCC) to fine tune compilation
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* for your own compiler. */
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/**
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* Function attribute to align function to given number of bytes.
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*/
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#ifndef JERRY_ATTR_ALIGNED
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#define JERRY_ATTR_ALIGNED(ALIGNMENT)
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#endif /* !JERRY_ATTR_ALIGNED */
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/**
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* Function attribute to inline function to all call sites.
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*/
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#ifndef JERRY_ATTR_ALWAYS_INLINE
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#define JERRY_ATTR_ALWAYS_INLINE
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#endif /* !JERRY_ATTR_ALWAYS_INLINE */
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/**
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* Function attribute to declare that function has no effect except the return
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* value and it only depends on parameters.
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*/
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#ifndef JERRY_ATTR_CONST
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#define JERRY_ATTR_CONST
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#endif /* !JERRY_ATTR_CONST */
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/**
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* Function attribute to trigger warning if deprecated function is called.
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*/
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#ifndef JERRY_ATTR_DEPRECATED
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#define JERRY_ATTR_DEPRECATED
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#endif /* !JERRY_ATTR_DEPRECATED */
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/**
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* Function attribute to declare that function is variadic and takes a format
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* string and some arguments as parameters.
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*/
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#ifndef JERRY_ATTR_FORMAT
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#define JERRY_ATTR_FORMAT(...)
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#endif /* !JERRY_ATTR_FORMAT */
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/**
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* Function attribute to predict that function is a hot spot, and therefore
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* should be optimized aggressively.
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*/
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#ifndef JERRY_ATTR_HOT
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#define JERRY_ATTR_HOT
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#endif /* !JERRY_ATTR_HOT */
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/**
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* Function attribute not to inline function ever.
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*/
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#ifndef JERRY_ATTR_NOINLINE
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#define JERRY_ATTR_NOINLINE
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#endif /* !JERRY_ATTR_NOINLINE */
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/**
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* Function attribute to declare that function never returns.
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*/
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#ifndef JERRY_ATTR_NORETURN
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#define JERRY_ATTR_NORETURN
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#endif /* !JERRY_ATTR_NORETURN */
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/**
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* Function attribute to declare that function has no effect except the return
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* value and it only depends on parameters and global variables.
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*/
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#ifndef JERRY_ATTR_PURE
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#define JERRY_ATTR_PURE
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#endif /* !JERRY_ATTR_PURE */
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/**
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* Function attribute to trigger warning if function's caller doesn't use (e.g.,
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* check) the return value.
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*/
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#ifndef JERRY_ATTR_WARN_UNUSED_RESULT
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#define JERRY_ATTR_WARN_UNUSED_RESULT
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#endif /* !JERRY_ATTR_WARN_UNUSED_RESULT */
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/**
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* Function attribute to declare a function a weak symbol
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*/
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#ifndef JERRY_ATTR_WEAK
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#define JERRY_ATTR_WEAK
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#endif /* !JERRY_ATTR_WEAK */
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/**
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* Helper to predict that a condition is likely.
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*/
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#ifndef JERRY_LIKELY
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#define JERRY_LIKELY(x) (x)
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#endif /* !JERRY_LIKELY */
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/**
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* Helper to predict that a condition is unlikely.
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*/
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#ifndef JERRY_UNLIKELY
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#define JERRY_UNLIKELY(x) (x)
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#endif /* !JERRY_UNLIKELY */
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/**
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* Helper to declare (or mimic) a C99 variable-length array.
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*/
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#ifndef JERRY_VLA
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#define JERRY_VLA(type, name, size) type name[size]
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#endif /* !JERRY_VLA */
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/**
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* @}
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*/
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JERRY_C_API_END
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#endif /* !JERRYSCRIPT_COMPILER_H */
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