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ox

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Ethereum Standard Library

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import * as Address from '../core/Address.js'; import * as Bytes from '../core/Bytes.js'; import * as Errors from '../core/Errors.js'; import * as Hex from '../core/Hex.js'; import * as TempoAddress from './TempoAddress.js'; /** Fixed 10-byte marker used by TIP-1022 virtual addresses. */ export const magic = '0xfdfdfdfdfdfdfdfdfdfd'; /** * Builds a TIP-1022 virtual address from a `masterId` and `userTag`. * * [TIP-1022](https://docs.tempo.xyz/protocol/tips/tip-1022) * * TIP-1022 encodes virtual addresses as: * `[4-byte masterId][10-byte VIRTUAL_MAGIC][6-byte userTag]` * * @example * ```ts twoslash * import { VirtualAddress } from 'ox/tempo' * * const address = VirtualAddress.from({ * masterId: '0x58e21090', * userTag: '0x010203040506', * }) * * address * // @log: '0x58e21090fdfdfdfdfdfdfdfdfdfd010203040506' * ``` * * @param value - The virtual address parts. * @returns The virtual address. */ export function from(value) { return Address.from(Hex.concat(toFixedHex(value.masterId, 4), magic, toFixedHex(value.userTag, 6))); } /** * Checks whether an address matches the TIP-1022 virtual address format. * * [TIP-1022](https://docs.tempo.xyz/protocol/tips/tip-1022) * * This only checks the reserved byte layout, not whether the `masterId` * is registered onchain. * * @example * ```ts twoslash * import { VirtualAddress } from 'ox/tempo' * * const isVirtual = VirtualAddress.isVirtual( * '0x58e21090fdfdfdfdfdfdfdfdfdfd010203040506', * ) * * isVirtual * // @log: true * ``` * * @param address - Address to check. * @returns `true` if the address matches the virtual-address layout. */ export function isVirtual(address) { try { const resolved = resolveAddress(address); return Hex.slice(resolved, 4, 14).toLowerCase() === magic; } catch { return false; } } /** * Parses a TIP-1022 virtual address into its `masterId` and `userTag` parts. * * [TIP-1022](https://docs.tempo.xyz/protocol/tips/tip-1022) * * @example * ```ts twoslash * import { VirtualAddress } from 'ox/tempo' * * const parsed = VirtualAddress.parse( * '0x58e21090fdfdfdfdfdfdfdfdfdfd010203040506', * ) * * parsed * // @log: { masterId: '0x58e21090', userTag: '0x010203040506' } * ``` * * @param address - The virtual address to parse. * @returns The decoded virtual address components. */ export function parse(address) { const resolved = resolveAddress(address); if (Hex.slice(resolved, 4, 14).toLowerCase() !== magic) throw new InvalidMagicError({ address: resolved }); return { masterId: Hex.slice(resolved, 0, 4), userTag: Hex.slice(resolved, 14, 20), }; } /** * Validates that an address matches the TIP-1022 virtual address format. * * [TIP-1022](https://docs.tempo.xyz/protocol/tips/tip-1022) * * This only validates the reserved byte layout, not whether the `masterId` * resolves to a registered master onchain. * * @example * ```ts twoslash * import { VirtualAddress } from 'ox/tempo' * * const valid = VirtualAddress.validate( * '0x58e21090fdfdfdfdfdfdfdfdfdfd010203040506', * ) * * valid * // @log: true * ``` * * @param address - Address to validate. * @returns `true` if the address has a valid virtual-address layout. */ export function validate(address) { try { parse(address); return true; } catch { return false; } } /** Thrown when an address does not contain the TIP-1022 virtual marker. */ export class InvalidMagicError extends Errors.BaseError { constructor({ address }) { super(`Address "${address}" does not contain the TIP-1022 virtual address marker.`); Object.defineProperty(this, "name", { enumerable: true, configurable: true, writable: true, value: 'VirtualAddress.InvalidMagicError' }); } } function resolveAddress(address) { const resolved = TempoAddress.resolve(address); Address.assert(resolved, { strict: false }); return resolved; } function toFixedHex(value, size) { if (typeof value === 'number' || typeof value === 'bigint') return Hex.fromNumber(value, { size }); if (typeof value === 'string') { Hex.assert(value, { strict: true }); return Hex.padLeft(value, size); } return Hex.fromBytes(Bytes.padLeft(value, size)); } //# sourceMappingURL=VirtualAddress.js.map