blake3
Version:
BLAKE3 hashing for JavaScript: native Node bindings (where available) and WebAssembly
240 lines (207 loc) • 6.27 kB
JavaScript
import * as wasm from './blake3_js_bg.wasm';
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
*/
export function hash(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 cachedTextEncoder = new TextEncoder('utf-8');
const encodeString = (typeof cachedTextEncoder.encodeInto === 'function'
? function (arg, view) {
return cachedTextEncoder.encodeInto(arg, view);
}
: function (arg, view) {
const buf = cachedTextEncoder.encode(arg);
view.set(buf);
return {
read: arg.length,
written: buf.length
};
});
function passStringToWasm0(arg, malloc, realloc) {
if (realloc === undefined) {
const buf = cachedTextEncoder.encode(arg);
const ptr = malloc(buf.length);
getUint8Memory0().subarray(ptr, ptr + buf.length).set(buf);
WASM_VECTOR_LEN = buf.length;
return ptr;
}
let len = arg.length;
let ptr = malloc(len);
const mem = getUint8Memory0();
let offset = 0;
for (; offset < len; offset++) {
const code = arg.charCodeAt(offset);
if (code > 0x7F) break;
mem[ptr + offset] = code;
}
if (offset !== len) {
if (offset !== 0) {
arg = arg.slice(offset);
}
ptr = realloc(ptr, len, len = offset + arg.length * 3);
const view = getUint8Memory0().subarray(ptr + offset, ptr + len);
const ret = encodeString(arg, view);
offset += ret.written;
}
WASM_VECTOR_LEN = offset;
return ptr;
}
/**
* @param {string} context
* @param {Uint8Array} key_material
* @param {Uint8Array} out
*/
export function derive_key(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}
*/
export function create_hasher() {
var ret = wasm.create_hasher();
return Blake3Hash.__wrap(ret);
}
/**
* @param {Uint8Array} key_slice
* @returns {Blake3Hash}
*/
export function create_keyed(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}
*/
export function create_derived(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);
/**
*/
export 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);
}
}
}
/**
*/
export 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);
}
}
export const __wbindgen_throw = function(arg0, arg1) {
throw new Error(getStringFromWasm0(arg0, arg1));
};