@lit-protocol/wasm
Version:
This package provides high-performance cryptographic operations for the Lit Protocol by implementing core utilities in Rust and compiling them to WebAssembly. It enables efficient cross-platform execution of critical cryptographic functions while maintain
67 lines • 3.65 kB
JavaScript
;
Object.defineProperty(exports, "__esModule", { value: true });
const tslib_1 = require("tslib");
const fs_1 = tslib_1.__importDefault(require("fs"));
const pako = tslib_1.__importStar(require("pako"));
const WASM_MODULE_PATH = 'rust/pkg/wasm-internal_bg.wasm';
const WASM_BINDING_PATH = 'rust/pkg/wasm-internal.js';
const CHUNK_SIZE = 100;
const COMMENT_OUT_LINES = [
// This regex matches the block that checks if `module_or_path` is undefined and assigns a URL to it.
/if\s*\(\s*typeof\s+module_or_path\s*===\s*['"`]undefined['"`]\s*\)\s*{\s*module_or_path\s*=\s*new\s+URL\s*\(\s*['"`]wasm-internal_bg\.wasm['"`],\s*import\.meta\.url\s*\);\s*}/g,
// This regex matches the block that checks if `module_or_path` is a string, `Request`, or `URL` and assigns it to the result of a `fetch`.
/if\s*\(\s*typeof\s+module_or_path\s*===\s*['"`]string['"`]\s*\|\|\s*\(typeof\s+Request\s*===\s*['"`]function['"`]\s*&&\s*module_or_path\s*instanceof\s+Request\)\s*\|\|\s*\(typeof\s+URL\s*===\s*['"`]function['"`]\s*&&\s*module_or_path\s*instanceof\s+URL\)\s*\)\s*{\s*module_or_path\s*=\s*fetch\s*\(module_or_path\);\s*}/g,
];
function main() {
const wasmModule = fs_1.default.readFileSync(WASM_MODULE_PATH);
const wasmBindingModule = fs_1.default.readFileSync(WASM_BINDING_PATH);
let wasmModuleBuffer = Buffer.from(wasmModule);
wasmModuleBuffer = pako.deflate(new Uint8Array(wasmModuleBuffer));
const wasmModuleB64 = Buffer.from(wasmModuleBuffer).toString('base64');
let buffer = `let moduleBuffer = "";`;
for (let i = 0; i < wasmModuleB64.length; i += CHUNK_SIZE) {
const chunk = wasmModuleB64.slice(i, i + CHUNK_SIZE);
buffer += `\nmoduleBuffer += "${chunk}";`;
}
let bindingModuleString = `
// @ts-nocheck - autogenerated from copyWasmBinary.mjs
import * as pako from 'pako';
`;
bindingModuleString += '\n';
bindingModuleString += buffer;
bindingModuleString += '\n';
bindingModuleString += `
export function getModule() {
let module = pako.inflate(new Uint8Array(Buffer.from(moduleBuffer, 'base64')));
return Uint8Array.from(module);
}
`;
bindingModuleString += wasmBindingModule;
let allReplacementsDone = true; // Track whether all replacements were successful
for (const commentOutItem of COMMENT_OUT_LINES) {
const originalString = bindingModuleString; // Store the original string before replacement
bindingModuleString = bindingModuleString.replace(commentOutItem, (match) => {
const headerComment = '// NOTE: This line is commented out automatically by copyWasmBinary.mjs\n';
const commentedBlock = match
.split('\n') // Split the matched block into lines
.map((line) => `// ${line}`) // Add "//" to each line
.join('\n'); // Re-join the lines into a single string
return `${headerComment}${commentedBlock}`; // Prepend the header comment to the commented block
});
// If no replacement was done (i.e., original string remains the same), mark as failure
if (originalString === bindingModuleString) {
allReplacementsDone = false;
}
}
// throw an error if all replacements were NOT successful
if (!allReplacementsDone) {
throw new Error('❗️❗️ Failed to comment out all specified lines in the wasm binding module.');
}
else {
console.log('✅ All replacements were successful!');
}
console.log('Writing wasm module');
fs_1.default.writeFileSync(WASM_BINDING_PATH, bindingModuleString);
}
main();
//# sourceMappingURL=copyWasmBinary.mjs.map