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Текущая директория: /var/www/bitcardoApp/node_modules/ethers/lib.esm/abi
Просмотр файла: bytes32.js
/**
* About bytes32 strings...
*
* @_docloc: api/utils:Bytes32 Strings
*/
import { getBytes, toUtf8Bytes, toUtf8String, zeroPadBytes } from "../utils/index.js";
/**
* Encodes %%text%% as a Bytes32 string.
*/
export function encodeBytes32String(text) {
// Get the bytes
const bytes = toUtf8Bytes(text);
// Check we have room for null-termination
if (bytes.length > 31) {
throw new Error("bytes32 string must be less than 32 bytes");
}
// Zero-pad (implicitly null-terminates)
return zeroPadBytes(bytes, 32);
}
/**
* Encodes the Bytes32-encoded %%bytes%% into a string.
*/
export function decodeBytes32String(_bytes) {
const data = getBytes(_bytes, "bytes");
// Must be 32 bytes with a null-termination
if (data.length !== 32) {
throw new Error("invalid bytes32 - not 32 bytes long");
}
if (data[31] !== 0) {
throw new Error("invalid bytes32 string - no null terminator");
}
// Find the null termination
let length = 31;
while (data[length - 1] === 0) {
length--;
}
// Determine the string value
return toUtf8String(data.slice(0, length));
}
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