Function opcodeCheckSigVerify

txscript/opcode.go:2109–2115

opcodeCheckSigVerify is a combination of opcodeCheckSig and opcodeVerify. The opcodeCheckSig function is invoked followed by opcodeVerify. See the documentation for each of those opcodes for more details. Stack transformation: [... signature pubkey] -> [... bool] -> [...]

(op *opcode, data []byte, vm *Engine)

//
// Stack transformation: [... signature pubkey] -> [... bool] -> [...]
func opcodeCheckSigVerify(op *opcode, data []byte, vm *Engine) error {
	err := opcodeCheckSig(op, data, vm)
	if err == nil {
		err = abstractVerify(op, vm, ErrCheckSigVerify)
	}
	return err
}

// opcodeCheckSigAdd implements the OP_CHECKSIGADD operation defined in BIP
// 342. This is a replacement for OP_CHECKMULTISIGVERIFY and OP_CHECKMULTISIG