rustbn-wasm/dist/esm/rustbn.js

Javascript bindings for https://github.com/paritytech/bn (using WASM)

import { base64 } from '@scure/base';
import wasmB64 from './wasm.js';
const imports = {};
let wasm;
let WASM_VECTOR_LEN = 0;
let cachedUint8Memory0 = null;
function getUint8Memory0() {
    if (cachedUint8Memory0 === null || cachedUint8Memory0.byteLength === 0) {
        cachedUint8Memory0 = new Uint8Array(wasm.memory.buffer);
    }
    return cachedUint8Memory0;
}
const cachedTextEncoder = new TextEncoder();
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, 1) >>> 0;
        getUint8Memory0()
            .subarray(ptr, ptr + buf.length)
            .set(buf);
        WASM_VECTOR_LEN = buf.length;
        return ptr;
    }
    let len = arg.length;
    let ptr = malloc(len, 1) >>> 0;
    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), 1) >>> 0;
        const view = getUint8Memory0().subarray(ptr + offset, ptr + len);
        const ret = encodeString(arg, view);
        offset += ret.written;
    }
    WASM_VECTOR_LEN = offset;
    return ptr;
}
let cachedInt32Memory0 = null;
function getInt32Memory0() {
    if (cachedInt32Memory0 === null || cachedInt32Memory0.byteLength === 0) {
        cachedInt32Memory0 = new Int32Array(wasm.memory.buffer);
    }
    return cachedInt32Memory0;
}
const cachedTextDecoder = new TextDecoder('utf-8', { ignoreBOM: true, fatal: true });
cachedTextDecoder.decode();
function getStringFromWasm0(ptr, len) {
    ptr = ptr >>> 0;
    return cachedTextDecoder.decode(getUint8Memory0().subarray(ptr, ptr + len));
}
/**
 * @param {string} input_hex
 * @returns {string}
 */
const ec_mul = function (input_hex) {
    let deferred2_0;
    let deferred2_1;
    try {
        const retptr = wasm.__wbindgen_add_to_stack_pointer(-16);
        const ptr0 = passStringToWasm0(input_hex, wasm.__wbindgen_malloc, wasm.__wbindgen_realloc);
        const len0 = WASM_VECTOR_LEN;
        wasm.ec_mul(retptr, ptr0, len0);
        const r0 = getInt32Memory0()[retptr / 4 + 0];
        const r1 = getInt32Memory0()[retptr / 4 + 1];
        deferred2_0 = r0;
        deferred2_1 = r1;
        return getStringFromWasm0(r0, r1);
    }
    finally {
        wasm.__wbindgen_add_to_stack_pointer(16);
        wasm.__wbindgen_free(deferred2_0, deferred2_1, 1);
    }
};
/**
 * @param {string} input_str
 * @returns {string}
 */
const ec_add = function (input_str) {
    let deferred2_0;
    let deferred2_1;
    try {
        const retptr = wasm.__wbindgen_add_to_stack_pointer(-16);
        const ptr0 = passStringToWasm0(input_str, wasm.__wbindgen_malloc, wasm.__wbindgen_realloc);
        const len0 = WASM_VECTOR_LEN;
        wasm.ec_add(retptr, ptr0, len0);
        const r0 = getInt32Memory0()[retptr / 4 + 0];
        const r1 = getInt32Memory0()[retptr / 4 + 1];
        deferred2_0 = r0;
        deferred2_1 = r1;
        return getStringFromWasm0(r0, r1);
    }
    finally {
        wasm.__wbindgen_add_to_stack_pointer(16);
        wasm.__wbindgen_free(deferred2_0, deferred2_1, 1);
    }
};
/**
 * @param {string} input_str
 * @returns {string}
 */
const ec_pairing = function (input_str) {
    let deferred2_0;
    let deferred2_1;
    try {
        const retptr = wasm.__wbindgen_add_to_stack_pointer(-16);
        const ptr0 = passStringToWasm0(input_str, wasm.__wbindgen_malloc, wasm.__wbindgen_realloc);
        const len0 = WASM_VECTOR_LEN;
        wasm.ec_pairing(retptr, ptr0, len0);
        const r0 = getInt32Memory0()[retptr / 4 + 0];
        const r1 = getInt32Memory0()[retptr / 4 + 1];
        deferred2_0 = r0;
        deferred2_1 = r1;
        return getStringFromWasm0(r0, r1);
    }
    finally {
        wasm.__wbindgen_add_to_stack_pointer(16);
        wasm.__wbindgen_free(deferred2_0, deferred2_1, 1);
    }
};
export const initRustBN = async () => {
    const wasmInstance = await WebAssembly.instantiate(await WebAssembly.compile(base64.decode(wasmB64.wasm)), imports);
    wasm = wasmInstance.exports;
    return {
        ec_pairing, ec_add, ec_mul
    };
};
//# sourceMappingURL=rustbn.js.map