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Текущая директория: /opt/BitGoJS/node_modules/@solana/spl-token/lib/cjs/instructions
Просмотр файла: initializeMint.js
"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.decodeInitializeMintInstructionUnchecked = exports.decodeInitializeMintInstruction = exports.createInitializeMintInstruction = exports.initializeMintInstructionData = void 0;
const buffer_layout_1 = require("@solana/buffer-layout");
const buffer_layout_utils_1 = require("@solana/buffer-layout-utils");
const web3_js_1 = require("@solana/web3.js");
const constants_1 = require("../constants");
const errors_1 = require("../errors");
const types_1 = require("./types");
/** TODO: docs */
exports.initializeMintInstructionData = (0, buffer_layout_1.struct)([
(0, buffer_layout_1.u8)('instruction'),
(0, buffer_layout_1.u8)('decimals'),
(0, buffer_layout_utils_1.publicKey)('mintAuthority'),
(0, buffer_layout_1.u8)('freezeAuthorityOption'),
(0, buffer_layout_utils_1.publicKey)('freezeAuthority'),
]);
/**
* Construct an InitializeMint instruction
*
* @param mint Token mint account
* @param decimals Number of decimals in token account amounts
* @param mintAuthority Minting authority
* @param freezeAuthority Optional authority that can freeze token accounts
* @param programId SPL Token program account
*
* @return Instruction to add to a transaction
*/
function createInitializeMintInstruction(mint, decimals, mintAuthority, freezeAuthority, programId = constants_1.TOKEN_PROGRAM_ID) {
const keys = [
{ pubkey: mint, isSigner: false, isWritable: true },
{ pubkey: web3_js_1.SYSVAR_RENT_PUBKEY, isSigner: false, isWritable: false },
];
const data = Buffer.alloc(exports.initializeMintInstructionData.span);
exports.initializeMintInstructionData.encode({
instruction: types_1.TokenInstruction.InitializeMint,
decimals,
mintAuthority,
freezeAuthorityOption: freezeAuthority ? 1 : 0,
freezeAuthority: freezeAuthority || new web3_js_1.PublicKey(0),
}, data);
return new web3_js_1.TransactionInstruction({ keys, programId, data });
}
exports.createInitializeMintInstruction = createInitializeMintInstruction;
/**
* Decode an InitializeMint instruction and validate it
*
* @param instruction Transaction instruction to decode
* @param programId SPL Token program account
*
* @return Decoded, valid instruction
*/
function decodeInitializeMintInstruction(instruction, programId = constants_1.TOKEN_PROGRAM_ID) {
if (!instruction.programId.equals(programId))
throw new errors_1.TokenInvalidInstructionProgramError();
if (instruction.data.length !== exports.initializeMintInstructionData.span)
throw new errors_1.TokenInvalidInstructionDataError();
const { keys: { mint, rent }, data, } = decodeInitializeMintInstructionUnchecked(instruction);
if (data.instruction !== types_1.TokenInstruction.InitializeMint)
throw new errors_1.TokenInvalidInstructionTypeError();
if (!mint || !rent)
throw new errors_1.TokenInvalidInstructionKeysError();
// TODO: key checks?
return {
programId,
keys: {
mint,
rent,
},
data,
};
}
exports.decodeInitializeMintInstruction = decodeInitializeMintInstruction;
/**
* Decode an InitializeMint instruction without validating it
*
* @param instruction Transaction instruction to decode
*
* @return Decoded, non-validated instruction
*/
function decodeInitializeMintInstructionUnchecked({ programId, keys: [mint, rent], data, }) {
const { instruction, decimals, mintAuthority, freezeAuthorityOption, freezeAuthority } = exports.initializeMintInstructionData.decode(data);
return {
programId,
keys: {
mint,
rent,
},
data: {
instruction,
decimals,
mintAuthority,
freezeAuthority: freezeAuthorityOption ? freezeAuthority : null,
},
};
}
exports.decodeInitializeMintInstructionUnchecked = decodeInitializeMintInstructionUnchecked;
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