57 lines
1.4 KiB
JavaScript
57 lines
1.4 KiB
JavaScript
|
/* global WebAssembly, crypto */
|
||
|
|
|
||
|
|
const {Environment, napi} = require('napi-wasm');
|
||
|
|
|
||
|
|
let env;
|
||
|
|
module.exports.init = async function init(input) {
|
||
|
|
if (env) return;
|
||
|
|
|
||
|
|
input = input ?? new URL('parcel_node_bindings.wasm', import.meta.url);
|
||
|
|
const {instance} = await WebAssembly.instantiateStreaming(fetch(input), {
|
||
|
|
env: {
|
||
|
|
...napi,
|
||
|
|
__getrandom_custom: (ptr, len) => {
|
||
|
|
let buf = env.memory.subarray(ptr, ptr + len);
|
||
|
|
crypto.getRandomValues(buf);
|
||
|
|
},
|
||
|
|
log: (ptr, len) => {
|
||
|
|
// eslint-disable-next-line no-console
|
||
|
|
console.log(env.getString(ptr, len));
|
||
|
|
},
|
||
|
|
},
|
||
|
|
});
|
||
|
|
|
||
|
|
// input =
|
||
|
|
// input ?? require('path').join(__dirname, 'parcel_node_bindings.wasm');
|
||
|
|
// const {instance} = await WebAssembly.instantiate(
|
||
|
|
// require('fs').readFileSync(input),
|
||
|
|
// {
|
||
|
|
// env: napi,
|
||
|
|
// },
|
||
|
|
// );
|
||
|
|
|
||
|
|
for (let key in instance.exports) {
|
||
|
|
if (key.startsWith('__napi_register__')) {
|
||
|
|
instance.exports[key]();
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
env = new Environment(instance);
|
||
|
|
|
||
|
|
for (let key in env.exports) {
|
||
|
|
if (key !== 'transform') {
|
||
|
|
module.exports[key] = env.exports[key];
|
||
|
|
}
|
||
|
|
}
|
||
|
|
module.exports.transform = function (config) {
|
||
|
|
let result = env.exports.transform(config);
|
||
|
|
return {
|
||
|
|
...result,
|
||
|
|
// Hydrate Uint8Array into Buffer
|
||
|
|
code: Buffer.from(result.code),
|
||
|
|
};
|
||
|
|
};
|
||
|
|
|
||
|
|
env.exports.initPanicHook();
|
||
|
|
};
|