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<?php |
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namespace BitWasp\Bitcoin\Transaction; |
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use BitWasp\Bitcoin\Bitcoin; |
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use BitWasp\Bitcoin\Serializer\Transaction\OutPointSerializer; |
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use BitWasp\Bitcoin\Script\Script; |
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use BitWasp\Bitcoin\Script\ScriptInterface; |
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use BitWasp\Bitcoin\Serializable; |
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use BitWasp\Bitcoin\Serializer\Transaction\TransactionInputSerializer; |
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use BitWasp\Buffertools\BufferInterface; |
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use BitWasp\CommonTrait\FunctionAliasArrayAccess; |
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class TransactionInput extends Serializable implements TransactionInputInterface |
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{ |
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use FunctionAliasArrayAccess; |
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/** |
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* @var OutPointInterface |
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*/ |
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private $outPoint; |
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/** |
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* @var ScriptInterface |
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*/ |
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private $script; |
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/** |
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* @var string|int |
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*/ |
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private $sequence; |
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/** |
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* @param OutPointInterface $outPoint |
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* @param ScriptInterface $script |
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* @param int $sequence |
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*/ |
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public function __construct(OutPointInterface $outPoint, ScriptInterface $script, $sequence = self::SEQUENCE_FINAL) |
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{ |
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$this->outPoint = $outPoint; |
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$this->script = $script; |
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$this->sequence = $sequence; |
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$this |
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->initFunctionAlias('outpoint', 'getOutPoint') |
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->initFunctionAlias('script', 'getScript') |
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->initFunctionAlias('sequence', 'getSequence'); |
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} |
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/** |
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* @return TransactionInput |
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*/ |
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public function __clone() |
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{ |
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$this->script = clone $this->script; |
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} |
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/** |
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* @return OutPointInterface |
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*/ |
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public function getOutPoint() |
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{ |
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return $this->outPoint; |
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} |
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/** |
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* @return Script |
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*/ |
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public function getScript() |
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{ |
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return $this->script; |
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} |
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/** |
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* @return int |
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*/ |
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public function getSequence() |
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{ |
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return $this->sequence; |
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} |
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/** |
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* @param TransactionInputInterface $input |
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* @return bool |
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*/ |
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public function equals(TransactionInputInterface $input) |
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{ |
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$outPoint = $this->outPoint->equals($input->getOutPoint()); |
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if (!$outPoint) { |
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return false; |
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} |
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$script = $this->script->equals($input->getScript()); |
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if (!$script) { |
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return false; |
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} |
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return gmp_cmp(gmp_init($this->sequence), gmp_init($input->getSequence())) === 0; |
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} |
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/** |
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* Check whether this transaction is a Coinbase transaction |
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* |
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* @return boolean |
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*/ |
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public function isCoinbase() |
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{ |
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$math = Bitcoin::getMath(); |
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$outpoint = $this->outPoint; |
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return $outpoint->getTxId()->getBinary() === str_pad('', 32, "\x00") |
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&& $math->cmp(gmp_init($outpoint->getVout()), gmp_init(0xffffffff)) === 0; |
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} |
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/** |
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* @return bool |
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*/ |
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public function isFinal() |
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{ |
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$math = Bitcoin::getMath(); |
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return $math->cmp(gmp_init($this->getSequence()), gmp_init(self::SEQUENCE_FINAL)) === 0; |
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} |
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/** |
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* @return BufferInterface |
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*/ |
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3420 |
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public function getBuffer() |
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{ |
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return (new TransactionInputSerializer(new OutPointSerializer()))->serialize($this); |
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} |
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/** |
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* @return array |
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*/ |
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public function __debugInfo() |
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{ |
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return [ |
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'outPoint' => $this->outPoint, |
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'script' => $this->script, |
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'sequence' => $this->sequence |
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]; |
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} |
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} |
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Bit-Wasp /
bitcoin-php
