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// writes the javascript vm's view of a memory map: the map's constants as
// typescript and commonjs modules. the vm reads its genome image itself, from
// genome.bin beside tinyvm.js, so only the layout is generated here. everything
// it writes is generated, so it goes to build/js/ and nothing is left in the tree.
//
// node src/js/mklayout.js [--map PATH] [--out DIR]
//
// the map is the default one `make` generates in build/core/map/memmap.h.
// outputs, in the out directory:
// layout.ts the map as typescript constants
// layout.js the map as commonjs constants
const fs = require('fs');
const path = require('path');
const root = path.join(__dirname, '..', '..');
const args = process.argv.slice(2);
const opt = (name) => {
const i = args.indexOf(name);
return i >= 0 && args[i + 1] ? args[i + 1] : null;
};
if (args.includes('--help') || args.includes('-h')) {
console.log([
'usage: node src/js/mklayout.js [--map PATH] [--out DIR]',
'converts a memory map header into the javascript vm layout files.',
'options:',
' --map PATH the memory map header to read; defaults to build/core/map/memmap.h',
' --out DIR where to write; defaults to build/js',
' --help, -h show this help and exit',
].join('\n'));
process.exit(0);
}
for (let i = 0; i < args.length; i += 2) {
if (!['--map', '--out'].includes(args[i]) || args[i + 1] === undefined) {
console.error('mklayout: unexpected arguments: ' + args.join(' ') + '; use --help for usage');
process.exit(2);
}
}
const mapPath = opt('--map') || path.join(root, 'build', 'core', 'map', 'memmap.h');
const outDir = opt('--out') || path.join(root, 'build', 'js');
if (!fs.existsSync(mapPath) || !fs.statSync(mapPath).isFile()) {
console.error('mklayout: no memory map header at ' + mapPath + '; run `make` first');
process.exit(1);
}
fs.mkdirSync(outDir, { recursive: true });
// the compiler's map, as constants: the js vm reads them instead of its own copies.
const { mapValues } = require('./mapvalues.js');
const names = ['MW', 'PW', 'ZFP', 'GORG', 'DS0', 'DSLIM', 'RS0', 'RSLIM', 'SYSGATE', 'HEAP_LO', 'HEAP_HI'];
const map = mapValues(mapPath, names);
const lines = names.map(k => ` ${k}: ${map[k]},`).join('\n');
const layoutTs = path.join(outDir, 'layout.ts');
fs.writeFileSync(layoutTs,
'// generated by src/js/mklayout.js from ' + path.relative(root, mapPath) + '. do not edit.\n' +
'export const MAP = {\n' + lines + '\n} as const;\n');
const layoutJs = path.join(outDir, 'layout.js');
fs.writeFileSync(layoutJs,
'// generated by src/js/mklayout.js from ' + path.relative(root, mapPath) + '. do not edit.\n' +
'exports.MAP = ' + JSON.stringify(map, null, 4) + ';\n');
console.log('wrote ' + path.relative(root, layoutJs) + ' and layout.ts');
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