micropython/ports/webassembly/wrapper.js

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/*
* This file is part of the MicroPython project, http://micropython.org/
*
* The MIT License (MIT)
*
* Copyright (c) 2017, 2018 Rami Ali
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
var Module = {};
var mainProgram = function()
{
mp_js_init = Module.cwrap('mp_js_init', 'null', ['number']);
mp_js_do_str = Module.cwrap('mp_js_do_str', 'number', ['string']);
mp_js_init_repl = Module.cwrap('mp_js_init_repl', 'null', ['null']);
mp_js_process_char = Module.cwrap('mp_js_process_char', 'number', ['number']);
MP_JS_EPOCH = (new Date()).getTime();
if (typeof window === 'undefined' && require.main === module) {
var fs = require('fs');
var stack_size = 64 * 1024;
var contents = '';
var repl = true;
for (var i = 0; i < process.argv.length; i++) {
if (process.argv[i] === '-X' && i < process.argv.length - 1) {
if (process.argv[i + 1].includes('stack=')) {
stack_size = parseInt(process.argv[i + 1].split('stack=')[1]);
if (process.argv[i + 1].substr(-1).toLowerCase() === 'k') {
stack_size *= 1024;
} else if (process.argv[i + 1].substr(-1).toLowerCase() === 'm') {
stack_size *= 1024 * 1024;
}
}
} else if (process.argv[i].includes('.py')) {
contents += fs.readFileSync(process.argv[i], 'utf8');
repl = false;;
}
}
mp_js_init(stack_size);
if (repl) {
mp_js_init_repl();
process.stdin.setRawMode(true);
process.stdin.on('data', function (data) {
for (var i = 0; i < data.length; i++) {
if (mp_js_process_char(data[i])) {
process.exit()
}
}
});
} else {
process.exitCode = mp_js_do_str(contents);
}
}
}
Module["onRuntimeInitialized"] = mainProgram;