import { getAddress } from "../address/index.js"; import { keccak256 as _keccak256, sha256 as _sha256 } from "../crypto/index.js"; import { concat, dataLength, getBytes, hexlify, toBeArray, toTwos, toUtf8Bytes, zeroPadBytes, zeroPadValue, assertArgument } from "../utils/index.js"; const regexBytes = new RegExp("^bytes([0-9]+)$"); const regexNumber = new RegExp("^(u?int)([0-9]*)$"); const regexArray = new RegExp("^(.*)\\[([0-9]*)\\]$"); function _pack(type, value, isArray) { switch (type) { case "address": if (isArray) { return getBytes(zeroPadValue(value, 32)); } return getBytes(getAddress(value)); case "string": return toUtf8Bytes(value); case "bytes": return getBytes(value); case "bool": value = (!!value ? "0x01" : "0x00"); if (isArray) { return getBytes(zeroPadValue(value, 32)); } return getBytes(value); } let match = type.match(regexNumber); if (match) { let signed = (match[1] === "int"); let size = parseInt(match[2] || "256"); assertArgument((!match[2] || match[2] === String(size)) && (size % 8 === 0) && size !== 0 && size <= 256, "invalid number type", "type", type); if (isArray) { size = 256; } if (signed) { value = toTwos(value, size); } return getBytes(zeroPadValue(toBeArray(value), size / 8)); } match = type.match(regexBytes); if (match) { const size = parseInt(match[1]); assertArgument(String(size) === match[1] && size !== 0 && size <= 32, "invalid bytes type", "type", type); assertArgument(dataLength(value) === size, `invalid value for ${type}`, "value", value); if (isArray) { return getBytes(zeroPadBytes(value, 32)); } return value; } match = type.match(regexArray); if (match && Array.isArray(value)) { const baseType = match[1]; const count = parseInt(match[2] || String(value.length)); assertArgument(count === value.length, `invalid array length for ${type}`, "value", value); const result = []; value.forEach(function (value) { result.push(_pack(baseType, value, true)); }); return getBytes(concat(result)); } assertArgument(false, "invalid type", "type", type); } // @TODO: Array Enum /** * Computes the [[link-solc-packed]] representation of %%values%% * respectively to their %%types%%. * * @example: * addr = "0x8ba1f109551bd432803012645ac136ddd64dba72" * solidityPacked([ "address", "uint" ], [ addr, 45 ]); * //_result: */ export function solidityPacked(types, values) { assertArgument(types.length === values.length, "wrong number of values; expected ${ types.length }", "values", values); const tight = []; types.forEach(function (type, index) { tight.push(_pack(type, values[index])); }); return hexlify(concat(tight)); } /** * Computes the [[link-solc-packed]] [[keccak256]] hash of %%values%% * respectively to their %%types%%. * * @example: * addr = "0x8ba1f109551bd432803012645ac136ddd64dba72" * solidityPackedKeccak256([ "address", "uint" ], [ addr, 45 ]); * //_result: */ export function solidityPackedKeccak256(types, values) { return _keccak256(solidityPacked(types, values)); } /** * Computes the [[link-solc-packed]] [[sha256]] hash of %%values%% * respectively to their %%types%%. * * @example: * addr = "0x8ba1f109551bd432803012645ac136ddd64dba72" * solidityPackedSha256([ "address", "uint" ], [ addr, 45 ]); * //_result: */ export function solidityPackedSha256(types, values) { return _sha256(solidityPacked(types, values)); } //# sourceMappingURL=solidity.js.map