campus-rating/services/node_modules/viem/_esm/utils/encoding/toBytes.js

import { BaseError } from '../../errors/base.js';
import { isHex } from '../data/isHex.js';
import { pad } from '../data/pad.js';
import { assertSize } from './fromHex.js';
import { numberToHex, } from './toHex.js';
const encoder = /*#__PURE__*/ new TextEncoder();
/**
 * Encodes a UTF-8 string, hex value, bigint, number or boolean to a byte array.
 *
 * - Docs: https://viem.sh/docs/utilities/toBytes
 * - Example: https://viem.sh/docs/utilities/toBytes#usage
 *
 * @param value Value to encode.
 * @param opts Options.
 * @returns Byte array value.
 *
 * @example
 * import { toBytes } from 'viem'
 * const data = toBytes('Hello world')
 * // Uint8Array([72, 101, 108, 108, 111, 32, 87, 111, 114, 108, 100, 33])
 *
 * @example
 * import { toBytes } from 'viem'
 * const data = toBytes(420)
 * // Uint8Array([1, 164])
 *
 * @example
 * import { toBytes } from 'viem'
 * const data = toBytes(420, { size: 4 })
 * // Uint8Array([0, 0, 1, 164])
 */
export function toBytes(value, opts = {}) {
    if (typeof value === 'number' || typeof value === 'bigint')
        return numberToBytes(value, opts);
    if (typeof value === 'boolean')
        return boolToBytes(value, opts);
    if (isHex(value))
        return hexToBytes(value, opts);
    return stringToBytes(value, opts);
}
/**
 * Encodes a boolean into a byte array.
 *
 * - Docs: https://viem.sh/docs/utilities/toBytes#booltobytes
 *
 * @param value Boolean value to encode.
 * @param opts Options.
 * @returns Byte array value.
 *
 * @example
 * import { boolToBytes } from 'viem'
 * const data = boolToBytes(true)
 * // Uint8Array([1])
 *
 * @example
 * import { boolToBytes } from 'viem'
 * const data = boolToBytes(true, { size: 32 })
 * // Uint8Array([0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1])
 */
export function boolToBytes(value, opts = {}) {
    const bytes = new Uint8Array(1);
    bytes[0] = Number(value);
    if (typeof opts.size === 'number') {
        assertSize(bytes, { size: opts.size });
        return pad(bytes, { size: opts.size });
    }
    return bytes;
}
// We use very optimized technique to convert hex string to byte array
const charCodeMap = {
    zero: 48,
    nine: 57,
    A: 65,
    F: 70,
    a: 97,
    f: 102,
};
function charCodeToBase16(char) {
    if (char >= charCodeMap.zero && char <= charCodeMap.nine)
        return char - charCodeMap.zero;
    if (char >= charCodeMap.A && char <= charCodeMap.F)
        return char - (charCodeMap.A - 10);
    if (char >= charCodeMap.a && char <= charCodeMap.f)
        return char - (charCodeMap.a - 10);
    return undefined;
}
/**
 * Encodes a hex string into a byte array.
 *
 * - Docs: https://viem.sh/docs/utilities/toBytes#hextobytes
 *
 * @param hex Hex string to encode.
 * @param opts Options.
 * @returns Byte array value.
 *
 * @example
 * import { hexToBytes } from 'viem'
 * const data = hexToBytes('0x48656c6c6f20776f726c6421')
 * // Uint8Array([72, 101, 108, 108, 111, 32, 87, 111, 114, 108, 100, 33])
 *
 * @example
 * import { hexToBytes } from 'viem'
 * const data = hexToBytes('0x48656c6c6f20776f726c6421', { size: 32 })
 * // Uint8Array([72, 101, 108, 108, 111, 32, 87, 111, 114, 108, 100, 33, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0])
 */
export function hexToBytes(hex_, opts = {}) {
    let hex = hex_;
    if (opts.size) {
        assertSize(hex, { size: opts.size });
        hex = pad(hex, { dir: 'right', size: opts.size });
    }
    let hexString = hex.slice(2);
    if (hexString.length % 2)
        hexString = `0${hexString}`;
    const length = hexString.length / 2;
    const bytes = new Uint8Array(length);
    for (let index = 0, j = 0; index < length; index++) {
        const nibbleLeft = charCodeToBase16(hexString.charCodeAt(j++));
        const nibbleRight = charCodeToBase16(hexString.charCodeAt(j++));
        if (nibbleLeft === undefined || nibbleRight === undefined) {
            throw new BaseError(`Invalid byte sequence ("${hexString[j - 2]}${hexString[j - 1]}" in "${hexString}").`);
        }
        bytes[index] = nibbleLeft * 16 + nibbleRight;
    }
    return bytes;
}
/**
 * Encodes a number into a byte array.
 *
 * - Docs: https://viem.sh/docs/utilities/toBytes#numbertobytes
 *
 * @param value Number to encode.
 * @param opts Options.
 * @returns Byte array value.
 *
 * @example
 * import { numberToBytes } from 'viem'
 * const data = numberToBytes(420)
 * // Uint8Array([1, 164])
 *
 * @example
 * import { numberToBytes } from 'viem'
 * const data = numberToBytes(420, { size: 4 })
 * // Uint8Array([0, 0, 1, 164])
 */
export function numberToBytes(value, opts) {
    const hex = numberToHex(value, opts);
    return hexToBytes(hex);
}
/**
 * Encodes a UTF-8 string into a byte array.
 *
 * - Docs: https://viem.sh/docs/utilities/toBytes#stringtobytes
 *
 * @param value String to encode.
 * @param opts Options.
 * @returns Byte array value.
 *
 * @example
 * import { stringToBytes } from 'viem'
 * const data = stringToBytes('Hello world!')
 * // Uint8Array([72, 101, 108, 108, 111, 32, 119, 111, 114, 108, 100, 33])
 *
 * @example
 * import { stringToBytes } from 'viem'
 * const data = stringToBytes('Hello world!', { size: 32 })
 * // Uint8Array([72, 101, 108, 108, 111, 32, 87, 111, 114, 108, 100, 33, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0])
 */
export function stringToBytes(value, opts = {}) {
    const bytes = encoder.encode(value);
    if (typeof opts.size === 'number') {
        assertSize(bytes, { size: opts.size });
        return pad(bytes, { dir: 'right', size: opts.size });
    }
    return bytes;
}
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