// SPDX-License-Identifier: Apache-2.0
/**
* @file index.js
* @description JavaScript bindings for mathjs-wasm WASM modules
*/
import { readFileSync } from 'fs';
import { fileURLToPath } from 'url';
import { dirname, join } from 'path';
const __filename = fileURLToPath(import.meta.url);
const __dirname = dirname(__filename);
let wasmInstance = null;
/**
* Load the WASM module
* @param {boolean} debug - Load debug or release build
* @returns {Promise<WebAssembly.Instance>}
*/
export async function loadWasm(debug = false) {
const wasmFile = debug ? 'debug.wasm' : 'release.wasm';
const wasmPath = join(__dirname, '..', 'build', wasmFile);
try {
const wasmBinary = readFileSync(wasmPath);
const wasmModule = await WebAssembly.compile(wasmBinary);
wasmInstance = await WebAssembly.instantiate(wasmModule, {
env: {
abort: (msg, file, line, column) => {
console.error(`WASM abort: ${msg} at ${file}:${line}:${column}`);
},
seed: () => Date.now()
}
});
console.log(`✅ WASM module loaded successfully: ${wasmFile}`);
return wasmInstance;
} catch (error) {
console.error(`❌ Failed to load WASM module: ${error.message}`);
throw error;
}
}
/**
* Get the WASM instance (lazy load if not loaded)
* @returns {Promise<WebAssembly.Instance>}
*/
export async function getWasmInstance() {
if (!wasmInstance) {
await loadWasm();
}
return wasmInstance;
}
/**
* Test function: Add two numbers using WASM
* @param {number} a
* @param {number} b
* @returns {Promise<number>}
*/
export async function add(a, b) {
const wasm = await getWasmInstance();
return wasm.exports.add(a, b);
}
/**
* Test function: Matrix multiply test
* @param {number} size
* @returns {Promise<number>}
*/
export async function testMatrixMultiply(size) {
const wasm = await getWasmInstance();
return wasm.exports.testMatrixMultiply(size);
}
// Graceful shutdown
process.on('exit', () => {
if (wasmInstance) {
// Cleanup if needed
}
});
