Transaction::isCoinbase() - Code Metrics - Inspection of "Segwit h2" - Bit-Wasp/bitcoin-php - Measure and Improve Code Quality continuously with Scrutinizer

Completed

Pull Request — master (#240)

by thomas

created 2016-02-03 14:17 UTC

Transaction::isCoinbase() A

↳ Parent: Transaction

Complexity

Conditions	2
Paths	2

Size

Total Lines	4
Code Lines	2

Duplication

Lines	0
Ratio	0 %

Code Coverage

Tests	0
CRAP Score	6

Metric	Value
dl	0
loc	4
ccs	0
cts	0
cp	0
rs	10
cc	2
eloc	2
nc	2
nop	0
crap	6

<?php

namespace BitWasp\Bitcoin\Transaction;

use BitWasp\Bitcoin\Bitcoin;
use BitWasp\Bitcoin\Collection\Transaction\TransactionInputCollection;
use BitWasp\Bitcoin\Collection\Transaction\TransactionOutputCollection;
use BitWasp\Bitcoin\Collection\Transaction\TransactionWitnessCollection;
use BitWasp\Bitcoin\Crypto\Hash;
use BitWasp\Bitcoin\Script\ScriptWitnessInterface;
use BitWasp\Bitcoin\Serializable;
use BitWasp\Bitcoin\Serializer\Transaction\NTransactionSerializer;
use BitWasp\Bitcoin\Serializer\Transaction\MTransactionSerializer;
use BitWasp\Bitcoin\Serializer\Transaction\TransactionSerializer;
use BitWasp\Bitcoin\Serializer\Transaction\WitnessTransactionSerializer;
use BitWasp\Bitcoin\Transaction\SignatureHash\Hasher;
use BitWasp\Bitcoin\Utxo\Utxo;
use BitWasp\Buffertools\BufferInterface;
use BitWasp\CommonTrait\FunctionAliasArrayAccess;

class Transaction extends Serializable implements TransactionInterface
{
    use FunctionAliasArrayAccess;

    /**
     * @var int|string
     */
    private $version;

    /**
     * @var TransactionInputCollection
     */
    private $inputs;

    /**
     * @var TransactionOutputCollection
     */
    private $outputs;

    /**
     * @var TransactionWitnessCollection
     */
    private $witness;

    /**
     * @var int|string
     */
    private $lockTime;

    /**
     * Transaction constructor.
     * @param int $nVersion
     * @param TransactionInputCollection|null $inputs
     * @param TransactionOutputCollection|null $outputs
     * @param TransactionWitnessCollection|null $witness
     * @param int $nLockTime
     */
    public function __construct(
        $nVersion = TransactionInterface::DEFAULT_VERSION,
        TransactionInputCollection $inputs = null,
        TransactionOutputCollection $outputs = null,
        TransactionWitnessCollection $witness = null,
        $nLockTime = 0
    ) {

        if (!is_numeric($nVersion)) {
            throw new \InvalidArgumentException('Transaction version must be numeric');
        }

        if (!is_numeric($nLockTime)) {
            throw new \InvalidArgumentException('Transaction locktime must be numeric');
        }

        $math = Bitcoin::getMath();
        if ($math->cmp($nVersion, TransactionInterface::MAX_VERSION) > 0) {
            throw new \InvalidArgumentException('Version must be less than ' . TransactionInterface::MAX_VERSION);
        }

        if ($math->cmp($nLockTime, 0) < 0 || $math->cmp($nLockTime, TransactionInterface::MAX_LOCKTIME) > 0) {
            throw new \InvalidArgumentException('Locktime must be positive and less than ' . TransactionInterface::MAX_LOCKTIME);
        }

        $this->version = $nVersion;
class Id
{
    public $id;

    public function __construct($id)
    {
        $this->id = $id;
    }

}

class Account
{
    /** @var  Id $id */
    public $id;
}

$account_id = false;

if (starsAreRight()) {
    $account_id = new Id(42);
}

$account = new Account();
if ($account instanceof Id)
{
    $account->id = $account_id;
}
        $this->inputs = $inputs ?: new TransactionInputCollection();
        $this->outputs = $outputs ?: new TransactionOutputCollection();
        $this->witness = $witness ?: new TransactionWitnessCollection();
        $this->lockTime = $nLockTime;
class Id
{
    public $id;

    public function __construct($id)
    {
        $this->id = $id;
    }

}

class Account
{
    /** @var  Id $id */
    public $id;
}

$account_id = false;

if (starsAreRight()) {
    $account_id = new Id(42);
}

$account = new Account();
if ($account instanceof Id)
{
    $account->id = $account_id;
}

        $this
            ->initFunctionAlias('version', 'getVersion')
            ->initFunctionAlias('inputs', 'getInputs')
            ->initFunctionAlias('outputs', 'getOutputs')
            ->initFunctionAlias('locktime', 'getLockTime');
    }

    /**
     * @return Transaction
     */
    public function __clone()
    {
        $this->inputs = clone $this->inputs;
        $this->outputs = clone $this->outputs;
    }

    /**
     * @return BufferInterface
     */
    public function getTxHash()
    {
        return Hash::sha256d($this->getBuffer());
    }

    /**
     * @return BufferInterface
     */
    public function getTxId()
    {
        return $this->getTxHash()->flip();
    }

    /**
     * @return int|string
     */
    public function getVersion()
    {
        return $this->version;
    }

    /**
     * Get the array of inputs in the transaction
     *
     * @return TransactionInputCollection
     */
    public function getInputs()
    {
        return $this->inputs;
    }

    /**
     * @param int $index
     * @return TransactionInputInterface
     */
    public function getInput($index)
    {
        return $this->inputs[$index];
    }

    /**
     * Get Outputs
     *
     * @return TransactionOutputCollection
     */
    public function getOutputs()
    {
        return $this->outputs;
    }

    /**
     * @param int $vout
     * @return TransactionOutputInterface
     */
    public function getOutput($vout)
    {
        return $this->outputs[$vout];
    }

    /**
     * @return TransactionWitnessCollection
     */
    public function getWitnesses()
    {
        return $this->witness;
    }

    /**
     * @return ScriptWitnessInterface
     */
    public function getWitness($index)
    {
        return $this->witness[$index];
    }

    /**
     * @param int $vout
     * @return OutPointInterface
     */
    public function makeOutpoint($vout)
    {
        $this->getOutput($vout);
class User
{
    private $email;

    public function getEmail()
    {
        return $this->email;
    }

    public function setEmail($email)
    {
        $this->email = $email;
    }
}
        return new OutPoint($this->getTxId(), $vout);
    }

    /**
     * @param int $vout
     * @return Utxo
     */
    public function makeUtxo($vout)
    {
        $output = $this->getOutput($vout);

        return new Utxo(
            new OutPoint($this->getTxId(), $vout),
            $output
        );
    }

    /**
     * Get Lock Time
     *
     * @return int|string
     */
    public function getLockTime()
    {
        return $this->lockTime;
    }

    /**
     * @return \BitWasp\Bitcoin\Transaction\SignatureHash\SigHash
     */
    public function getSignatureHash()
    {
        return new Hasher($this);
    }

    /**
     * @return int|string
     */
    public function getValueOut()
    {
        $math = Bitcoin::getMath();
        $value = 0;
        foreach ($this->outputs as $output) {
            $value = $math->add($value, $output->getValue());
        }

        return $value;
    }

    /**
     * @return bool
     */
    public function isCoinbase()
    {
        return count($this->inputs) === 1 && $this->getInput(0)->isCoinBase();
    }

    /**
     * @return Validator
     */
    public function validator()
    {
        return new Validator($this);
    }

    /**
     * @return BufferInterface
     */
    public function getBuffer()
    {
        return (new MTransactionSerializer)->serialize($this);
    }

    /**
     * @return string
     */
    public function getWitnessBuffer()
    {
        return (new TransactionSerializer())->serialize($this);
    }
}


1		<?php
2
3		namespace BitWasp\Bitcoin\Transaction;
4
5		use BitWasp\Bitcoin\Bitcoin;
6		use BitWasp\Bitcoin\Collection\Transaction\TransactionInputCollection;
7		use BitWasp\Bitcoin\Collection\Transaction\TransactionOutputCollection;
8		use BitWasp\Bitcoin\Collection\Transaction\TransactionWitnessCollection;
9		use BitWasp\Bitcoin\Crypto\Hash;
10		use BitWasp\Bitcoin\Script\ScriptWitnessInterface;
11		use BitWasp\Bitcoin\Serializable;
12		use BitWasp\Bitcoin\Serializer\Transaction\NTransactionSerializer;
13		use BitWasp\Bitcoin\Serializer\Transaction\MTransactionSerializer;
14		use BitWasp\Bitcoin\Serializer\Transaction\TransactionSerializer;
15		use BitWasp\Bitcoin\Serializer\Transaction\WitnessTransactionSerializer;
16		use BitWasp\Bitcoin\Transaction\SignatureHash\Hasher;
17		use BitWasp\Bitcoin\Utxo\Utxo;
18		use BitWasp\Buffertools\BufferInterface;
19		use BitWasp\CommonTrait\FunctionAliasArrayAccess;
20
21		class Transaction extends Serializable implements TransactionInterface
22		{
23		use FunctionAliasArrayAccess;
24
25		/**
26		* @var int\|string
27		*/
28		private $version;
29
30		/**
31		* @var TransactionInputCollection
32		*/
33		private $inputs;
34
35		/**
36		* @var TransactionOutputCollection
37		*/
38		private $outputs;
39
40		/**
41		* @var TransactionWitnessCollection
42		*/
43		private $witness;
44
45		/**
46		* @var int\|string
47	1220	*/
48		private $lockTime;
49
50		/**
51		* Transaction constructor.
52		* @param int $nVersion
53		* @param TransactionInputCollection\|null $inputs
54	1220	* @param TransactionOutputCollection\|null $outputs
55	6	* @param TransactionWitnessCollection\|null $witness
56		* @param int $nLockTime
57		*/
58	1214	public function __construct(
59	6	$nVersion = TransactionInterface::DEFAULT_VERSION,
60		TransactionInputCollection $inputs = null,
61		TransactionOutputCollection $outputs = null,
62	1208	TransactionWitnessCollection $witness = null,
63	1208	$nLockTime = 0
64	6	) {
65
66		if (!is_numeric($nVersion)) {
67	1202	throw new \InvalidArgumentException('Transaction version must be numeric');
68	6	}
69
70		if (!is_numeric($nLockTime)) {
71	1196	throw new \InvalidArgumentException('Transaction locktime must be numeric');
72	1196	}
73	1196
74	1196	$math = Bitcoin::getMath();
75		if ($math->cmp($nVersion, TransactionInterface::MAX_VERSION) > 0) {
76	1196	throw new \InvalidArgumentException('Version must be less than ' . TransactionInterface::MAX_VERSION);
77	1196	}
78	1196
79	1196	if ($math->cmp($nLockTime, 0) < 0 \|\| $math->cmp($nLockTime, TransactionInterface::MAX_LOCKTIME) > 0) {
80	1196	throw new \InvalidArgumentException('Locktime must be positive and less than ' . TransactionInterface::MAX_LOCKTIME);
81	1196	}
82
83		$this->version = $nVersion;
		0 ignored issues – show Documentation Bug introduced 2015-11-21 03:53 UTC by Report Bug Copy Issue Report It seems like `$nVersion` can also be of type `double`. However, the property `$version` is declared as type `integer\|string`. Maybe add an additional type check? Our type inference engine has found a suspicous assignment of a value to a property. This check raises an issue when a value that can be of a mixed type is assigned to a property that is type hinted more strictly. For example, imagine you have a variable `$accountId` that can either hold an Id object or false (if there is no account id yet). Your code now assigns that value to the `id` property of an instance of the `Account` class. This class holds a proper account, so the id value must no longer be false. Either this assignment is in error or a type check should be added for that assignment. class Id { public $id; public function __construct($id) { $this->id = $id; } } class Account { /** @var Id $id */ public $id; } $account_id = false; if (starsAreRight()) { $account_id = new Id(42); } $account = new Account(); if ($account instanceof Id) { $account->id = $account_id; } Loading history...
84		$this->inputs = $inputs ?: new TransactionInputCollection();
85		$this->outputs = $outputs ?: new TransactionOutputCollection();
86	112	$this->witness = $witness ?: new TransactionWitnessCollection();
87		$this->lockTime = $nLockTime;
		0 ignored issues – show Documentation Bug introduced 2015-11-21 03:53 UTC by Report Bug Copy Issue Report It seems like `$nLockTime` can also be of type `double`. However, the property `$lockTime` is declared as type `integer\|string`. Maybe add an additional type check? Our type inference engine has found a suspicous assignment of a value to a property. This check raises an issue when a value that can be of a mixed type is assigned to a property that is type hinted more strictly. For example, imagine you have a variable `$accountId` that can either hold an Id object or false (if there is no account id yet). Your code now assigns that value to the `id` property of an instance of the `Account` class. This class holds a proper account, so the id value must no longer be false. Either this assignment is in error or a type check should be added for that assignment. class Id { public $id; public function __construct($id) { $this->id = $id; } } class Account { /** @var Id $id */ public $id; } $account_id = false; if (starsAreRight()) { $account_id = new Id(42); } $account = new Account(); if ($account instanceof Id) { $account->id = $account_id; } Loading history...
88	112
89	112	$this
90	112	->initFunctionAlias('version', 'getVersion')
91		->initFunctionAlias('inputs', 'getInputs')
92		->initFunctionAlias('outputs', 'getOutputs')
93		->initFunctionAlias('locktime', 'getLockTime');
94		}
95	184
96		/**
97	184	* @return Transaction
98		*/
99		public function __clone()
100		{
101		$this->inputs = clone $this->inputs;
102		$this->outputs = clone $this->outputs;
103	184	}
104
105	184	/**
106		* @return BufferInterface
107		*/
108		public function getTxHash()
109		{
110		return Hash::sha256d($this->getBuffer());
111	322	}
112
113	322	/**
114		* @return BufferInterface
115		*/
116		public function getTxId()
117		{
118		return $this->getTxHash()->flip();
119		}
120
121	998	/**
122		* @return int\|string
123	998	*/
124		public function getVersion()
125		{
126		return $this->version;
127		}
128
129		/**
130	106	* Get the array of inputs in the transaction
131		*
132	106	* @return TransactionInputCollection
133		*/
134		public function getInputs()
135		{
136		return $this->inputs;
137		}
138
139		/**
140	332	* @param int $index
141		* @return TransactionInputInterface
142	332	*/
143		public function getInput($index)
144		{
145		return $this->inputs[$index];
146		}
147
148		/**
149	154	* Get Outputs
150		*
151	154	* @return TransactionOutputCollection
152		*/
153		public function getOutputs()
154		{
155		return $this->outputs;
156		}
157
158	24	/**
159		* @param int $vout
160	24	* @return TransactionOutputInterface
161	24	*/
162		public function getOutput($vout)
163		{
164		return $this->outputs[$vout];
165		}
166
167		/**
168		* @return TransactionWitnessCollection
169		*/
170		public function getWitnesses()
171		{
172		return $this->witness;
173		}
174
175		/**
176		* @return ScriptWitnessInterface
177		*/
178		public function getWitness($index)
179		{
180		return $this->witness[$index];
181		}
182
183	328	/**
184		* @param int $vout
185	328	* @return OutPointInterface
186		*/
187		public function makeOutpoint($vout)
188		{
189		$this->getOutput($vout);
		0 ignored issues – show Unused Code introduced 2015-12-16 03:40 UTC by Report Bug Copy Issue Report The call to the method `BitWasp\Bitcoin\Transact...ransaction::getOutput()` seems un-needed as the method has no side-effects. PHP Analyzer performs a side-effects analysis of your code. A side-effect is basically anything that might be visible after the scope of the method is left. Let’s take a look at an example: class User { private $email; public function getEmail() { return $this->email; } public function setEmail($email) { $this->email = $email; } } If we look at the `getEmail()` method, we can see that it has no side-effect. Whether you call this method or not, no future calls to other methods are affected by this. As such code as the following is useless: $user = new User(); $user->getEmail(); // This line could safely be removed as it has no effect. On the hand, if we look at the `setEmail()`, this method _has_ side-effects. In the following case, we could not remove the method call: $user = new User(); $user->setEmail('email@domain'); // This line has a side-effect (it changes an // instance variable). Loading history...
190		return new OutPoint($this->getTxId(), $vout);
191	98	}
192
193	98	/**
194		* @param int $vout
195		* @return Utxo
196		*/
197		public function makeUtxo($vout)
198		{
199	6	$output = $this->getOutput($vout);
200
201	6	return new Utxo(
202	6	new OutPoint($this->getTxId(), $vout),
203	6	$output
204	6	);
205	6	}
206
207	6	/**
208		* Get Lock Time
209		*
210		* @return int\|string
211		*/
212		public function getLockTime()
213	6	{
214		return $this->lockTime;
215	6	}
216
217		/**
218		* @return \BitWasp\Bitcoin\Transaction\SignatureHash\SigHash
219		*/
220		public function getSignatureHash()
221		{
222		return new Hasher($this);
223		}
224
225		/**
226		* @return int\|string
227		*/
228		public function getValueOut()
229	292	{
230		$math = Bitcoin::getMath();
231	292	$value = 0;
232		foreach ($this->outputs as $output) {
233		$value = $math->add($value, $output->getValue());
234		}
235
236		return $value;
237		}
238
239		/**
240		* @return bool
241		*/
242		public function isCoinbase()
243		{
244		return count($this->inputs) === 1 && $this->getInput(0)->isCoinBase();
245		}
246
247		/**
248		* @return Validator
249		*/
250		public function validator()
251		{
252		return new Validator($this);
253		}
254
255		/**
256		* @return BufferInterface
257		*/
258		public function getBuffer()
259		{
260		return (new MTransactionSerializer)->serialize($this);
261		}
262
263		/**
264		* @return string
265		*/
266		public function getWitnessBuffer()
267		{
268		return (new TransactionSerializer())->serialize($this);
269		}
270		}
271

Bit-Wasp / bitcoin-php

Pull Request — master (#240)

Transaction::isCoinbase() A

Complexity

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Duplication

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