blake3/dist/wasm/nodejs/blake3_js.js

BLAKE3 hashing for JavaScript: native Node bindings (where available) and WebAssembly

let wasm;
const { TextDecoder } = require(String.raw`util`);

let cachedTextDecoder = new TextDecoder('utf-8', { ignoreBOM: true, fatal: true });

cachedTextDecoder.decode();

let cachegetUint8Memory0 = null;
function getUint8Memory0() {
    if (cachegetUint8Memory0 === null || cachegetUint8Memory0.buffer !== wasm.memory.buffer) {
        cachegetUint8Memory0 = new Uint8Array(wasm.memory.buffer);
    }
    return cachegetUint8Memory0;
}

function getStringFromWasm0(ptr, len) {
    return cachedTextDecoder.decode(getUint8Memory0().subarray(ptr, ptr + len));
}

let WASM_VECTOR_LEN = 0;

function passArray8ToWasm0(arg, malloc) {
    const ptr = malloc(arg.length * 1);
    getUint8Memory0().set(arg, ptr / 1);
    WASM_VECTOR_LEN = arg.length;
    return ptr;
}
/**
* @param {Uint8Array} data
* @param {Uint8Array} out
*/
module.exports.hash = function(data, out) {
    try {
        var ptr0 = passArray8ToWasm0(data, wasm.__wbindgen_malloc);
        var len0 = WASM_VECTOR_LEN;
        var ptr1 = passArray8ToWasm0(out, wasm.__wbindgen_malloc);
        var len1 = WASM_VECTOR_LEN;
        wasm.hash(ptr0, len0, ptr1, len1);
    } finally {
        out.set(getUint8Memory0().subarray(ptr1 / 1, ptr1 / 1 + len1));
        wasm.__wbindgen_free(ptr1, len1 * 1);
    }
};

let cachegetNodeBufferMemory0 = null;
function getNodeBufferMemory0() {
    if (cachegetNodeBufferMemory0 === null || cachegetNodeBufferMemory0.buffer !== wasm.memory.buffer) {
        cachegetNodeBufferMemory0 = Buffer.from(wasm.memory.buffer);
    }
    return cachegetNodeBufferMemory0;
}

function passStringToWasm0(arg, malloc) {

    const len = Buffer.byteLength(arg);
    const ptr = malloc(len);
    getNodeBufferMemory0().write(arg, ptr, len);
    WASM_VECTOR_LEN = len;
    return ptr;
}
/**
* @param {string} context
* @param {Uint8Array} key_material
* @param {Uint8Array} out
*/
module.exports.derive_key = function(context, key_material, out) {
    try {
        var ptr0 = passStringToWasm0(context, wasm.__wbindgen_malloc, wasm.__wbindgen_realloc);
        var len0 = WASM_VECTOR_LEN;
        var ptr1 = passArray8ToWasm0(key_material, wasm.__wbindgen_malloc);
        var len1 = WASM_VECTOR_LEN;
        var ptr2 = passArray8ToWasm0(out, wasm.__wbindgen_malloc);
        var len2 = WASM_VECTOR_LEN;
        wasm.derive_key(ptr0, len0, ptr1, len1, ptr2, len2);
    } finally {
        out.set(getUint8Memory0().subarray(ptr2 / 1, ptr2 / 1 + len2));
        wasm.__wbindgen_free(ptr2, len2 * 1);
    }
};

/**
* @returns {Blake3Hash}
*/
module.exports.create_hasher = function() {
    var ret = wasm.create_hasher();
    return Blake3Hash.__wrap(ret);
};

/**
* @param {Uint8Array} key_slice
* @returns {Blake3Hash}
*/
module.exports.create_keyed = function(key_slice) {
    var ptr0 = passArray8ToWasm0(key_slice, wasm.__wbindgen_malloc);
    var len0 = WASM_VECTOR_LEN;
    var ret = wasm.create_keyed(ptr0, len0);
    return Blake3Hash.__wrap(ret);
};

/**
* @param {string} key
* @returns {Blake3Hash}
*/
module.exports.create_derived = function(key) {
    var ptr0 = passStringToWasm0(key, wasm.__wbindgen_malloc, wasm.__wbindgen_realloc);
    var len0 = WASM_VECTOR_LEN;
    var ret = wasm.create_derived(ptr0, len0);
    return Blake3Hash.__wrap(ret);
};

const u32CvtShim = new Uint32Array(2);

const uint64CvtShim = new BigUint64Array(u32CvtShim.buffer);
/**
*/
class Blake3Hash {

    static __wrap(ptr) {
        const obj = Object.create(Blake3Hash.prototype);
        obj.ptr = ptr;

        return obj;
    }

    free() {
        const ptr = this.ptr;
        this.ptr = 0;

        wasm.__wbg_blake3hash_free(ptr);
    }
    /**
    * @returns {HashReader}
    */
    reader() {
        var ret = wasm.blake3hash_reader(this.ptr);
        return HashReader.__wrap(ret);
    }
    /**
    * @param {Uint8Array} input_bytes
    */
    update(input_bytes) {
        var ptr0 = passArray8ToWasm0(input_bytes, wasm.__wbindgen_malloc);
        var len0 = WASM_VECTOR_LEN;
        wasm.blake3hash_update(this.ptr, ptr0, len0);
    }
    /**
    * @param {Uint8Array} out
    */
    digest(out) {
        try {
            var ptr0 = passArray8ToWasm0(out, wasm.__wbindgen_malloc);
            var len0 = WASM_VECTOR_LEN;
            wasm.blake3hash_digest(this.ptr, ptr0, len0);
        } finally {
            out.set(getUint8Memory0().subarray(ptr0 / 1, ptr0 / 1 + len0));
            wasm.__wbindgen_free(ptr0, len0 * 1);
        }
    }
}
module.exports.Blake3Hash = Blake3Hash;
/**
*/
class HashReader {

    static __wrap(ptr) {
        const obj = Object.create(HashReader.prototype);
        obj.ptr = ptr;

        return obj;
    }

    free() {
        const ptr = this.ptr;
        this.ptr = 0;

        wasm.__wbg_hashreader_free(ptr);
    }
    /**
    * @param {Uint8Array} bytes
    */
    fill(bytes) {
        try {
            var ptr0 = passArray8ToWasm0(bytes, wasm.__wbindgen_malloc);
            var len0 = WASM_VECTOR_LEN;
            wasm.hashreader_fill(this.ptr, ptr0, len0);
        } finally {
            bytes.set(getUint8Memory0().subarray(ptr0 / 1, ptr0 / 1 + len0));
            wasm.__wbindgen_free(ptr0, len0 * 1);
        }
    }
    /**
    * @param {BigInt} position
    */
    set_position(position) {
        uint64CvtShim[0] = position;
        const low0 = u32CvtShim[0];
        const high0 = u32CvtShim[1];
        wasm.hashreader_set_position(this.ptr, low0, high0);
    }
}
module.exports.HashReader = HashReader;

module.exports.__wbindgen_throw = function(arg0, arg1) {
    throw new Error(getStringFromWasm0(arg0, arg1));
};
wasm = require('./blake3_js_bg');