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Текущая директория: /usr/lib/node_modules/bitgo/node_modules/@solana/spl-token/lib/esm/extensions/memoTransfer
Просмотр файла: instructions.mjs
import { struct, u8 } from '@solana/buffer-layout';
import { TransactionInstruction } from '@solana/web3.js';
import { TokenInstruction } from './../../instructions/types.mjs';
import { programSupportsExtensions, TOKEN_2022_PROGRAM_ID } from './../../constants.mjs';
import { TokenUnsupportedInstructionError } from './../../errors.mjs';
export var MemoTransferInstruction;
(function (MemoTransferInstruction) {
MemoTransferInstruction[MemoTransferInstruction["Enable"] = 0] = "Enable";
MemoTransferInstruction[MemoTransferInstruction["Disable"] = 1] = "Disable";
})(MemoTransferInstruction || (MemoTransferInstruction = {}));
/** TODO: docs */
export const memoTransferInstructionData = struct([
u8('instruction'),
u8('memoTransferInstruction'),
]);
/**
* Construct an EnableRequiredMemoTransfers instruction
*
* @param account Token account to update
* @param authority The account's owner/delegate
* @param signers The signer account(s)
* @param programId SPL Token program account
*
* @return Instruction to add to a transaction
*/
export function createEnableRequiredMemoTransfersInstruction(account, authority, multiSigners = [], programId = TOKEN_2022_PROGRAM_ID) {
return createMemoTransferInstruction(/* enable */ true, account, authority, multiSigners, programId);
}
/**
* Construct a DisableMemoTransfer instruction
*
* @param account Token account to update
* @param authority The account's owner/delegate
* @param signers The signer account(s)
* @param programId SPL Token program account
*
* @return Instruction to add to a transaction
*/
export function createDisableRequiredMemoTransfersInstruction(account, authority, multiSigners = [], programId = TOKEN_2022_PROGRAM_ID) {
return createMemoTransferInstruction(/* enable */ false, account, authority, multiSigners, programId);
}
function createMemoTransferInstruction(enable, account, authority, multiSigners, programId) {
if (!programSupportsExtensions(programId)) {
throw new TokenUnsupportedInstructionError();
}
const keys = [{ pubkey: account, isSigner: false, isWritable: true }];
keys.push({ pubkey: authority, isSigner: !multiSigners.length, isWritable: false });
for (const signer of multiSigners) {
keys.push({ pubkey: signer.publicKey, isSigner: true, isWritable: false });
}
const data = Buffer.alloc(memoTransferInstructionData.span);
memoTransferInstructionData.encode({
instruction: TokenInstruction.MemoTransferExtension,
memoTransferInstruction: enable ? MemoTransferInstruction.Enable : MemoTransferInstruction.Disable,
}, data);
return new TransactionInstruction({ keys, programId, data });
}
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