Akos Kiss 240411771a Remove the built-in print and the jerry_port_console port API functions (#1749)
The built-in `print` is removed from jerry-core, but an external
`print` implementation is added to jerry-main. From now on, all
embedders of the engine have to implement their own `print` if they
need such a functionality.

For printing results in REPL mode of jerry-main, the external
`print` handler is called directly instead of looking up the `print`
function registered into the global object. (The two are the same,
but the indirection is not needed anymore.)

Because jerry-core does not contain `print` anymore,
`jerry_port_console` is removed from the port API. The default port
is updated, i.e., the implementation of `jerry_port_console` is
removed. Additionally, all references to `jerry_port_console` in
jerry-main are replaced by `printf`.

Speculatively, `jerry_port_console` is also removed from all
non-default targets. Most targets implemented it for the sake of the
engine only; in those targets the removal was trivial. Where the
function was called from the embedder application as well, the
calls were replaced with equivalents (e.g., `printf`, `printk`).

NOTE 1: This is a breaking change!

NOTE 2: This patch still leaves several targets without a JS `print`
implementation.

JerryScript-DCO-1.0-Signed-off-by: Akos Kiss akiss@inf.u-szeged.hu
2017-05-03 11:47:56 +02:00

85 lines
2.4 KiB
C

/* Copyright JS Foundation and other contributors, http://js.foundation
*
* 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.
*/
#include <stdarg.h>
#include "jerryscript-port.h"
#include "jerryscript-port-default.h"
#ifndef DISABLE_EXTRA_API
/**
* Actual log level
*/
static jerry_log_level_t jerry_port_default_log_level = JERRY_LOG_LEVEL_ERROR;
#define JERRY_PORT_DEFAULT_LOG_LEVEL jerry_port_default_log_level
/**
* Get the log level
*
* @return current log level
*
* Note:
* This function is only available if the port implementation library is
* compiled without the DISABLE_EXTRA_API macro.
*/
jerry_log_level_t
jerry_port_default_get_log_level (void)
{
return jerry_port_default_log_level;
} /* jerry_port_default_get_log_level */
/**
* Set the log level
*
* Note:
* This function is only available if the port implementation library is
* compiled without the DISABLE_EXTRA_API macro.
*/
void
jerry_port_default_set_log_level (jerry_log_level_t level) /**< log level */
{
jerry_port_default_log_level = level;
} /* jerry_port_default_set_log_level */
#else /* DISABLE_EXTRA_API */
#define JERRY_PORT_DEFAULT_LOG_LEVEL JERRY_LOG_LEVEL_ERROR
#endif /* !DISABLE_EXTRA_API */
/**
* Default implementation of jerry_port_log. Prints log message to standard
* error with 'vfprintf' if message level is less than or equal to the set log
* level.
*
* Note:
* Changing the log level from JERRY_LOG_LEVEL_ERROR is only possible if
* the port implementation library is compiled without the
* DISABLE_EXTRA_API macro.
*/
void
jerry_port_log (jerry_log_level_t level, /**< log level */
const char *format, /**< format string */
...) /**< parameters */
{
if (level <= JERRY_PORT_DEFAULT_LOG_LEVEL)
{
va_list args;
va_start (args, format);
vfprintf (stderr, format, args);
va_end (args);
}
} /* jerry_port_log */