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added transfer PDA #1844

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added transfer PDA #1844

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15 changes: 15 additions & 0 deletions solana-library/spl_token.sol
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Original file line number Diff line number Diff line change
Expand Up @@ -85,6 +85,21 @@ library SplToken {
tokenProgramId.call{accounts: metas}(instr);
}

/// Transfer @amount token from @from (PDA) to @to. The transaction will be signed by PDA account
function transfer_pda(address pda_token_account, address to, address pda, uint64 amount, bytes bump) internal {
bytes instr = new bytes(9);

instr[0] = uint8(TokenInstruction.Transfer);
instr.writeUint64LE(amount, 1);

AccountMeta[3] metas = [
AccountMeta({pubkey: pda_token_account, is_writable: true, is_signer: false}),
AccountMeta({pubkey: to, is_writable: true, is_signer: false}),
AccountMeta({pubkey: pda, is_writable: false, is_signer: true})
];
tokenProgramId.call{accounts: metas, seeds: [["msq", bump]]}(instr);
}

/// Burn @amount tokens in account. This transaction should be signed by the owner.
///
/// @param account the acount for which tokens should be burned
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