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Текущая директория: /opt/BitGoJS/node_modules/@solana/spl-token/lib/esm/instructions
Просмотр файла: setAuthority.mjs
import { struct, u8 } from '@solana/buffer-layout';
import { publicKey } from '@solana/buffer-layout-utils';
import { PublicKey, TransactionInstruction } from '@solana/web3.js';
import { TOKEN_PROGRAM_ID } from './../constants.mjs';
import { TokenInvalidInstructionDataError, TokenInvalidInstructionKeysError, TokenInvalidInstructionProgramError, TokenInvalidInstructionTypeError, } from './../errors.mjs';
import { addSigners } from './internal.mjs';
import { TokenInstruction } from './types.mjs';
/** Authority types defined by the program */
export var AuthorityType;
(function (AuthorityType) {
AuthorityType[AuthorityType["MintTokens"] = 0] = "MintTokens";
AuthorityType[AuthorityType["FreezeAccount"] = 1] = "FreezeAccount";
AuthorityType[AuthorityType["AccountOwner"] = 2] = "AccountOwner";
AuthorityType[AuthorityType["CloseAccount"] = 3] = "CloseAccount";
})(AuthorityType || (AuthorityType = {}));
/** TODO: docs */
export const setAuthorityInstructionData = struct([
u8('instruction'),
u8('authorityType'),
u8('newAuthorityOption'),
publicKey('newAuthority'),
]);
/**
* Construct a SetAuthority instruction
*
* @param account Address of the token account
* @param currentAuthority Current authority of the specified type
* @param authorityType Type of authority to set
* @param newAuthority New authority of the account
* @param multiSigners Signing accounts if `currentAuthority` is a multisig
* @param programId SPL Token program account
*
* @return Instruction to add to a transaction
*/
export function createSetAuthorityInstruction(account, currentAuthority, authorityType, newAuthority, multiSigners = [], programId = TOKEN_PROGRAM_ID) {
const keys = addSigners([{ pubkey: account, isSigner: false, isWritable: true }], currentAuthority, multiSigners);
const data = Buffer.alloc(setAuthorityInstructionData.span);
setAuthorityInstructionData.encode({
instruction: TokenInstruction.SetAuthority,
authorityType,
newAuthorityOption: newAuthority ? 1 : 0,
newAuthority: newAuthority || new PublicKey(0),
}, data);
return new TransactionInstruction({ keys, programId, data });
}
/**
* Decode a SetAuthority instruction and validate it
*
* @param instruction Transaction instruction to decode
* @param programId SPL Token program account
*
* @return Decoded, valid instruction
*/
export function decodeSetAuthorityInstruction(instruction, programId = TOKEN_PROGRAM_ID) {
if (!instruction.programId.equals(programId))
throw new TokenInvalidInstructionProgramError();
if (instruction.data.length !== setAuthorityInstructionData.span)
throw new TokenInvalidInstructionDataError();
const { keys: { account, currentAuthority, multiSigners }, data, } = decodeSetAuthorityInstructionUnchecked(instruction);
if (data.instruction !== TokenInstruction.SetAuthority)
throw new TokenInvalidInstructionTypeError();
if (!account || !currentAuthority)
throw new TokenInvalidInstructionKeysError();
// TODO: key checks?
return {
programId,
keys: {
account,
currentAuthority,
multiSigners,
},
data,
};
}
/**
* Decode a SetAuthority instruction without validating it
*
* @param instruction Transaction instruction to decode
*
* @return Decoded, non-validated instruction
*/
export function decodeSetAuthorityInstructionUnchecked({ programId, keys: [account, currentAuthority, ...multiSigners], data, }) {
const { instruction, authorityType, newAuthorityOption, newAuthority } = setAuthorityInstructionData.decode(data);
return {
programId,
keys: {
account,
currentAuthority,
multiSigners,
},
data: {
instruction,
authorityType,
newAuthority: newAuthorityOption ? newAuthority : null,
},
};
}
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