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// runs zc in a browser or in node: the microcore compiled to webassembly,
// with the compiler genome inside. ZC.load(bytes) gives a machine, and
// machine.run(source) compiles and runs a program the way `zy < file.zc` does,
// returning what it printed. every run starts from a fresh instance.
(function (root) {
async function load(wasm) {
if (typeof wasm === 'string') wasm = await (await fetch(wasm)).arrayBuffer();
const mod = await WebAssembly.compile(wasm);
return {
async run(source) {
let out = [], msg = [], mem;
const inst = await WebAssembly.instantiate(mod, {
env: { js_putc: c => { out.push(c); }, js_msg: c => { msg.push(c); } }
});
const x = inst.exports;
const bytes = new TextEncoder().encode(source);
if (bytes.length > x.wasm_input_cap()) throw new Error('program too long for the input buffer');
new Uint8Array(x.memory.buffer).set(bytes, x.wasm_input());
x.wasm_set_input(bytes.length);
const status = x.wasm_run();
const dec = new TextDecoder();
return { output: dec.decode(new Uint8Array(out)), messages: dec.decode(new Uint8Array(msg)), status };
}
};
}
const ZC = { load };
if (typeof module !== 'undefined' && module.exports) module.exports = ZC; else root.ZC = ZC;
})(typeof self !== 'undefined' ? self : this);
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