Files
squoosh/codecs/oxipng/tmp/lol.js
2019-02-07 17:35:48 +00:00

48 lines
1.4 KiB
JavaScript

// const oxipng = require("./oxipng_wasm");
const repl = require("repl");
const fs = require("fs");
const dec = new TextDecoder();
let buffer = '';
async function init() {
const { instance } = await WebAssembly.instantiate(
fs.readFileSync("./target/wasm32-unknown-unknown/release/loltest.wasm"),
{
__wbindgen_placeholder__: {
__wbindgen_describe(v) {
console.log(`__wbindgen_desribe(${v})`);
}
},
env: {
// See https://github.com/rust-lang/rust/blob/master/src/libstd/sys/wasm/mod.rs
rust_wasm_syscall(syscall, ptr) {
switch(syscall) {
case 1: // Write
const [fd, dataPtr, len] = new Uint32Array(instance.exports.memory.buffer, ptr, 3 * 4);
const fragment = new Uint8Array(instance.exports.memory.buffer, dataPtr, len);
buffer += dec.decode(fragment);
const idx = buffer.indexOf('\n');
if(idx !== -1) {
console.log(buffer.slice(0, idx));
buffer = buffer.slice(idx);
}
return 1;
case 6: // Time
return 1;
default:
return 0; // False, unimplemented
}
}
}
}
);
try {
instance.exports.doit();
} catch{}
const r = repl.start("node> ");
r.context.i = instance;
}
init();