51 lines
1.4 KiB
JavaScript
51 lines
1.4 KiB
JavaScript
// @flow
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import * as BufferLayout from 'buffer-layout';
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import type {Blockhash} from './blockhash';
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import * as Layout from './layout';
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import {PublicKey} from './publickey';
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import type {FeeCalculator} from './fee-calculator';
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import {FeeCalculatorLayout} from './fee-calculator';
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import {toBuffer} from './util/to-buffer';
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/**
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* See https://github.com/solana-labs/solana/blob/0ea2843ec9cdc517572b8e62c959f41b55cf4453/sdk/src/nonce_state.rs#L29-L32
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*
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* @private
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*/
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const NonceAccountLayout = BufferLayout.struct([
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BufferLayout.u32('version'),
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BufferLayout.u32('state'),
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Layout.publicKey('authorizedPubkey'),
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Layout.publicKey('nonce'),
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BufferLayout.struct([FeeCalculatorLayout], 'feeCalculator'),
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]);
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export const NONCE_ACCOUNT_LENGTH = NonceAccountLayout.span;
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/**
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* NonceAccount class
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*/
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export class NonceAccount {
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authorizedPubkey: PublicKey;
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nonce: Blockhash;
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feeCalculator: FeeCalculator;
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/**
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* Deserialize NonceAccount from the account data.
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*
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* @param buffer account data
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* @return NonceAccount
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*/
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static fromAccountData(
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buffer: Buffer | Uint8Array | Array<number>,
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): NonceAccount {
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const nonceAccount = NonceAccountLayout.decode(toBuffer(buffer), 0);
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nonceAccount.authorizedPubkey = new PublicKey(
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nonceAccount.authorizedPubkey,
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);
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nonceAccount.nonce = new PublicKey(nonceAccount.nonce).toString();
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return nonceAccount;
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}
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}
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