Zoltan Herczeg
053389de80
Furthermore reduce memory consumption when only one external pointer is assigned to an object. JerryScript-DCO-1.0-Signed-off-by: Zoltan Herczeg zherczeg.u-szeged@partner.samsung.com
114 lines
3.7 KiB
C++
114 lines
3.7 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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#include "jerryscript-mbed-util/logging.h"
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#include "jerryscript-mbed-library-registry/wrap_tools.h"
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#include "mbed.h"
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/**
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* AnalogIn#destructor
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*
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* Called if/when the AnalogIn is GC'ed.
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*/
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void NAME_FOR_CLASS_NATIVE_DESTRUCTOR(AnalogIn)(void* void_ptr, jerry_object_native_info_t *info_p) {
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(void) info_p;
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delete static_cast<AnalogIn*>(void_ptr);
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}
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/**
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* Type infomation of the native AnalogIn pointer
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*
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* Set AnalogIn#destructor as the free callback.
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*/
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static const jerry_object_native_info_t native_obj_type_info = {
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.free_cb = NAME_FOR_CLASS_NATIVE_DESTRUCTOR(AnalogIn)
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};
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/**
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* AnalogIn#read (native JavaScript method)
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*
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* Read the input voltage, represented as a float in the range [0.0, 1.0]
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*
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* @returns A floating-point value representing the current input voltage, measured as a percentage
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*/
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DECLARE_CLASS_FUNCTION(AnalogIn, read) {
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CHECK_ARGUMENT_COUNT(AnalogIn, read, (args_count == 0));
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// Extract native AnalogIn pointer
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void* void_ptr;
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bool has_ptr = jerry_get_object_native_pointer(call_info_p->this_value, &void_ptr, &native_obj_type_info);
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if (!has_ptr) {
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return jerry_create_error(JERRY_ERROR_TYPE,
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(const jerry_char_t *) "Failed to get native AnalogIn pointer");
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}
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AnalogIn* native_ptr = static_cast<AnalogIn*>(void_ptr);
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float result = native_ptr->read();
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return jerry_create_number(result);
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}
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/**
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* AnalogIn#read_u16 (native JavaScript method)
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*
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* Read the input voltage, represented as an unsigned short in the range [0x0, 0xFFFF]
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*
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* @returns 16-bit unsigned short representing the current input voltage, normalised to a 16-bit value
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*/
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DECLARE_CLASS_FUNCTION(AnalogIn, read_u16) {
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CHECK_ARGUMENT_COUNT(AnalogIn, read_u16, (args_count == 0));
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// Extract native AnalogIn pointer
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void* void_ptr;
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bool has_ptr = jerry_get_object_native_pointer(call_info_p->this_value, &void_ptr, &native_obj_type_info);
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if (!has_ptr) {
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return jerry_create_error(JERRY_ERROR_TYPE,
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(const jerry_char_t *) "Failed to get native AnalogIn pointer");
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}
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AnalogIn* native_ptr = static_cast<AnalogIn*>(void_ptr);
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uint16_t result = native_ptr->read_u16();
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return jerry_create_number(result);
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}
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/**
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* AnalogIn (native JavaScript constructor)
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*
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* @param pin_name mbed pin to connect the AnalogIn to.
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* @returns a JavaScript object representing a AnalogIn.
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*/
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DECLARE_CLASS_CONSTRUCTOR(AnalogIn) {
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CHECK_ARGUMENT_COUNT(AnalogIn, __constructor, args_count == 1);
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CHECK_ARGUMENT_TYPE_ALWAYS(AnalogIn, __constructor, 0, number);
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PinName pin_name = PinName(jerry_get_number_value(args[0]));
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// create native object
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AnalogIn* native_ptr = new AnalogIn(pin_name);
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// create the jerryscript object
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jerry_value_t js_object = jerry_create_object();
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jerry_set_object_native_pointer(js_object, native_ptr, &native_obj_type_info);
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// attach methods
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ATTACH_CLASS_FUNCTION(js_object, AnalogIn, read);
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ATTACH_CLASS_FUNCTION(js_object, AnalogIn, read_u16);
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return js_object;
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}
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