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149 lines
4 KiB
C++
149 lines
4 KiB
C++
/* Copyright 2014-2015 Samsung Electronics Co., Ltd.
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* Copyright 2016 University of Szeged.
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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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#include <stdlib.h>
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#include <stdio.h>
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#include "jerry-core/jerry-api.h"
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#include "jerry_extapi.h"
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#include "native_mbed.h"
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#ifndef MIN
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#define MIN(A,B) ((A)<(B)?(A):(B))
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#endif
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//-----------------------------------------------------------------------------
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#define __UNSED__ __attribute__((unused))
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#define DECLARE_HANDLER(NAME) \
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static jerry_value_t \
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NAME ## _handler (const jerry_value_t func_value __UNSED__, \
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const jerry_value_t this_value __UNSED__, \
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const jerry_value_t args[], \
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const jerry_length_t args_cnt )
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#define REGISTER_HANDLER(NAME) \
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register_native_function ( # NAME, NAME ## _handler)
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//-----------------------------------------------------------------------------
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DECLARE_HANDLER(assert)
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{
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if (args_cnt == 1
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&& jerry_value_is_boolean (args[0])
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&& jerry_get_boolean_value (args[0]))
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{
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printf (">> Jerry assert true\r\n");
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return jerry_create_boolean (true);
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}
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printf ("ERROR: Script assertion failed\n");
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exit (JERRY_STANDALONE_EXIT_CODE_FAIL);
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return jerry_create_boolean (false);
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}
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DECLARE_HANDLER(led)
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{
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jerry_value_t ret_val;
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if (args_cnt < 2)
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{
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ret_val = jerry_create_boolean (false);
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printf ("Error: invalid arguments number!\r\n");
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return ret_val;
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}
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if (!(jerry_value_is_number (args[0])
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&& jerry_value_is_number (args[1])))
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{
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ret_val = jerry_create_boolean (false);
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printf ("Error: arguments must be numbers!\r\n");
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return ret_val;
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}
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int port, value;
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port = (int) jerry_get_number_value (args[0]);
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value = (int) jerry_get_number_value (args[1]);
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if (port >= 0 && port <= 3)
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{
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native_led (port, value);
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ret_val = jerry_create_boolean (true);
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}
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else
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{
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ret_val = jerry_create_boolean (false);
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}
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return ret_val;
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}
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//-----------------------------------------------------------------------------
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static bool
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register_native_function (const char* name,
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jerry_external_handler_t handler)
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{
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jerry_value_t global_object_val = jerry_get_global_object ();
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jerry_value_t reg_function = jerry_create_external_function (handler);
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bool is_ok = true;
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if (!(jerry_value_is_function (reg_function)
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&& jerry_value_is_constructor (reg_function)))
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{
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is_ok = false;
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printf ("Error: create_external_function failed !!!\r\n");
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jerry_release_value (global_object_val);
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jerry_release_value (reg_function);
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return is_ok;
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}
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if (jerry_value_has_error_flag (reg_function))
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{
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is_ok = false;
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printf ("Error: create_external_function has error flag! \n\r");
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jerry_release_value (global_object_val);
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jerry_release_value (reg_function);
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return is_ok;
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}
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jerry_value_t jerry_name = jerry_create_string ((jerry_char_t *) name);
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jerry_value_t set_result = jerry_set_property (global_object_val,
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jerry_name,
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reg_function);
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if (jerry_value_has_error_flag (set_result))
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{
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is_ok = false;
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printf ("Error: register_native_function failed: [%s]\r\n", name);
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}
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jerry_release_value (jerry_name);
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jerry_release_value (global_object_val);
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jerry_release_value (reg_function);
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jerry_release_value (set_result);
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return is_ok;
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}
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void js_register_functions (void)
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{
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REGISTER_HANDLER (assert);
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REGISTER_HANDLER (led);
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}
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