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const path = require("path");
const fs = require("fs");
// When --write is set, files will be written in place
// Otherwise it only prints outdated files
const doWrite = process.argv.includes("--write");
const files = ["lib/util/hash/xxhash64.js", "lib/util/hash/md4.js"];
(async () => {
// TODO: fix me after update typescript to v5
// eslint-disable-next-line no-warning-comments
// @ts-ignore
// eslint-disable-next-line n/no-unsupported-features/es-syntax
const asc = (await import("assemblyscript/asc")).default;
for (const file of files) {
const filePath = path.resolve(__dirname, "..", file);
const content = fs.readFileSync(filePath, "utf-8");
const regexp =
/\n\/\/[\s]*#region wasm code: (.+) \((.+)\)(.*)\n[\s\S]+?\/\/[\s+]*#endregion\n/g;
const replaces = new Map();
let match = regexp.exec(content);
while (match) {
const [fullMatch, identifier, name, flags] = match;
const sourcePath = path.resolve(filePath, "..", name);
const sourcePathBase = path.join(
path.dirname(sourcePath),
path.basename(sourcePath)
);
const { error } = await asc.main(
[
sourcePath,
// cspell:word Ospeed
"-Ospeed",
"--noAssert",
"--converge",
"--textFile",
`${sourcePathBase}.wat`,
"--outFile",
`${sourcePathBase}.wasm`,
...flags.split(" ").filter(Boolean)
],
{
stdout: process.stdout,
stderr: process.stderr
}
);
if (error) {
throw error;
}
const wasm = fs.readFileSync(`${sourcePathBase}.wasm`);
replaces.set(
fullMatch,
`
// #region wasm code: ${identifier} (${name})${flags}
const ${identifier} = new WebAssembly.Module(
Buffer.from(
// ${wasm.length} bytes
${JSON.stringify(wasm.toString("base64"))},
"base64"
)
);
// #endregion
`
);
match = regexp.exec(content);
}
const newContent = content.replace(regexp, match => replaces.get(match));
if (newContent !== content) {
if (doWrite) {
fs.writeFileSync(filePath, newContent, "utf-8");
console.error(`${file} updated`);
} else {
console.error(`${file} need to be updated`);
process.exitCode = 1;
}
}
}
})();
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