Complex::fromPolar() - Code Metrics - nicolopignatelli/valueobjects - Measure and Improve Code Quality continuously with Scrutinizer

Complex::fromPolar() A
last analyzed 2017-04-18 19:08 UTC

↳ Parent: Complex

Complexity

Conditions	1
Paths	1

Size

Total Lines	10
Code Lines	7

Duplication

Lines	0
Ratio	0 %

Code Coverage

Tests	7
CRAP Score	1

Importance

Changes	1
Bugs	0	Features	0

Metric	Value
dl	0
loc	10
ccs	7
cts	7
cp	1
rs	9.4285
c	1
b	0
f	0
cc	1
eloc	7
nc	1
nop	2
crap	1

<?php

namespace ValueObjects\Number;

use ValueObjects\Util\Util;
use ValueObjects\ValueObjectInterface;

class Complex implements ValueObjectInterface, NumberInterface
{
    /** @var Real */
    protected $real;

    /** @var Real */
    protected $im;

    /**
     * Returns a new Complex object from native PHP arguments
     *
     * @param  float                        $real Real part of the complex number
/**
 * @param array $germany
 * @param array $island
 * @param array $italy
 */
function finale($germany, $island) {
    return "2:1";
}
     * @param  float                        $im   Imaginary part of the complex number
/**
 * @param array $germany
 * @param array $island
 * @param array $italy
 */
function finale($germany, $island) {
    return "2:1";
}
     * @return Complex|ValueObjectInterface
     * @throws \BadMethodCallException
     */
    public static function fromNative()
    {
        $args = \func_get_args();

        if (\count($args) != 2) {
            throw new \BadMethodCallException('You must provide 2 arguments: 1) real part, 2) imaginary part');
        }

        $real    = Real::fromNative($args[0]);
        $im      = Real::fromNative($args[1]);
        $complex = new static($real, $im);

        return $complex;
    }

    /**
     * Returns a Complex given polar coordinates
     *
     * @param  Real    $modulus
     * @param  Real    $argument
     * @return Complex
     */
    public static function fromPolar(Real $modulus, Real $argument)
    {
        $realValue = $modulus->toNative() * \cos($argument->toNative());
        $imValue   = $modulus->toNative() * \sin($argument->toNative());
        $real      = new Real($realValue);
        $im        = new Real($imValue);
        $complex   = new static($real, $im);

        return $complex;
    }

    /**
     * Returns a Complex object give its real and imaginary parts as parameters
     *
     * @param Real $real
     * @param Real $im
     */
    public function __construct(Real $real, Real $im)
    {
        $this->real = $real;
        $this->im   = $im;
    }

    public function sameValueAs(ValueObjectInterface $complex)
    {
        if (false === Util::classEquals($this, $complex)) {
            return false;
        }

        return $this->getReal()->sameValueAs($complex->getReal()) &&
interface User
{
    /** @return string */
    public function getPassword();
}

class MyUser implements User
{
    public function getPassword()
    {
        // return something
    }

    public function getDisplayName()
    {
        // return some name.
    }
}

class AuthSystem
{
    public function authenticate(User $user)
    {
        $this->logger->info(sprintf('Authenticating %s.', $user->getDisplayName()));
        // do something.
    }
}
               $this->getIm()->sameValueAs($complex->getIm());
interface User
{
    /** @return string */
    public function getPassword();
}

class MyUser implements User
{
    public function getPassword()
    {
        // return something
    }

    public function getDisplayName()
    {
        // return some name.
    }
}

class AuthSystem
{
    public function authenticate(User $user)
    {
        $this->logger->info(sprintf('Authenticating %s.', $user->getDisplayName()));
        // do something.
    }
}
    }

    /**
     * Returns the native value of the real and imaginary parts as an array
     *
     * @return array
     */
    public function toNative()
    {
        return array(
            $this->getReal()->toNative(),
            $this->getIm()->toNative()
        );
    }

    /**
     * Returns the real part of the complex number
     *
     * @return Real
     */
    public function getReal()
    {
        return clone $this->real;
    }

    /**
     * Returns the imaginary part of the complex number
     *
     * @return Real
     */
    public function getIm()
    {
        return clone $this->im;
    }

    /**
     * Returns the modulus (or absolute value or magnitude) of the Complex number
     *
     * @return Real
     */
    public function getModulus()
    {
        $real = $this->getReal()->toNative();
        $im   = $this->getIm()->toNative();
        $mod  = \sqrt(\pow($real, 2) + \pow($im, 2));

        return new Real($mod);
    }

    /**
     * Returns the argument (or phase) of the Complex number
     *
     * @return Real
     */
    public function getArgument()
    {
        $real = $this->getReal()->toNative();
        $im   = $this->getIm()->toNative();
        $arg  = \atan2($im, $real);

        return new Real($arg);
    }

    /**
     * Returns a native string version of the Complex object in format "${real} +|- ${complex}i"
     *
     * @return string
     */
    public function __toString()
    {
        $format = '%g %+gi';
        $real   = $this->getReal()->toNative();
        $im     = $this->getIm()->toNative();
        $string = \sprintf($format, $real, $im);

        return \preg_replace('/(\+|-)/', '$1 ', $string);
    }
}


1		<?php
2
3		namespace ValueObjects\Number;
4
5		use ValueObjects\Util\Util;
6		use ValueObjects\ValueObjectInterface;
7
8		class Complex implements ValueObjectInterface, NumberInterface
9		{
10		/** @var Real */
11		protected $real;
12
13		/** @var Real */
14		protected $im;
15
16		/**
17		* Returns a new Complex object from native PHP arguments
18		*
19		* @param float $real Real part of the complex number
		0 ignored issues – show Bug introduced 2015-11-21 01:12 UTC by Report Bug Copy Issue Report There is no parameter named `$real`. Was it maybe removed? This check looks for PHPDoc comments describing methods or function parameters that do not exist on the corresponding method or function. Consider the following example. The parameter `$italy` is not defined by the method `finale(...)`. /** * @param array $germany * @param array $island * @param array $italy */ function finale($germany, $island) { return "2:1"; } The most likely cause is that the parameter was removed, but the annotation was not. Loading history...
20		* @param float $im Imaginary part of the complex number
		0 ignored issues – show Bug introduced 2015-11-21 01:12 UTC by Report Bug Copy Issue Report There is no parameter named `$im`. Was it maybe removed? This check looks for PHPDoc comments describing methods or function parameters that do not exist on the corresponding method or function. Consider the following example. The parameter `$italy` is not defined by the method `finale(...)`. /** * @param array $germany * @param array $island * @param array $italy */ function finale($germany, $island) { return "2:1"; } The most likely cause is that the parameter was removed, but the annotation was not. Loading history...
21		* @return Complex\|ValueObjectInterface
22		* @throws \BadMethodCallException
23		*/
24	2	public static function fromNative()
25		{
26	2	$args = \func_get_args();
27
28	2	if (\count($args) != 2) {
29	1	throw new \BadMethodCallException('You must provide 2 arguments: 1) real part, 2) imaginary part');
30		}
31
32	1	$real = Real::fromNative($args[0]);
33	1	$im = Real::fromNative($args[1]);
34	1	$complex = new static($real, $im);
35
36	1	return $complex;
37		}
38
39		/**
40		* Returns a Complex given polar coordinates
41		*
42		* @param Real $modulus
43		* @param Real $argument
44		* @return Complex
45		*/
46	1	public static function fromPolar(Real $modulus, Real $argument)
47		{
48	1	$realValue = $modulus->toNative() * \cos($argument->toNative());
49	1	$imValue = $modulus->toNative() * \sin($argument->toNative());
50	1	$real = new Real($realValue);
51	1	$im = new Real($imValue);
52	1	$complex = new static($real, $im);
53
54	1	return $complex;
55		}
56
57		/**
58		* Returns a Complex object give its real and imaginary parts as parameters
59		*
60		* @param Real $real
61		* @param Real $im
62		*/
63	10	public function __construct(Real $real, Real $im)
64		{
65	10	$this->real = $real;
66	10	$this->im = $im;
67	10	}
68
69	2	public function sameValueAs(ValueObjectInterface $complex)
70		{
71	2	if (false === Util::classEquals($this, $complex)) {
72	1	return false;
73		}
74
75	1	return $this->getReal()->sameValueAs($complex->getReal()) &&
		0 ignored issues – show Bug introduced 2015-11-21 01:12 UTC by Report Bug Copy Issue Report It seems like you code against a concrete implementation and not the interface `ValueObjects\ValueObjectInterface` as the method `getReal()` does only exist in the following implementations of said interface: `ValueObjects\Number\Complex`. Let’s take a look at an example: interface User { /** @return string / public function getPassword(); } class MyUser implements User { public function getPassword() { // return something } public function getDisplayName() { // return some name. } } class AuthSystem { public function authenticate(User $user) { $this->logger->info(sprintf('Authenticating %s.', $user->getDisplayName())); // do something. } } In the above example, the authenticate() method works fine as long as you just pass instances of MyUser. However, if you now also want to pass a different implementation of User which does not have a getDisplayName() method, the code will break. Available Fixes Change the type-hint for the parameter: class AuthSystem { public function authenticate(MyUser $user) { / ... / } } Add an additional type-check: class AuthSystem { public function authenticate(User $user) { if ($user instanceof MyUser) { $this->logger->info(/* ... /); } // or alternatively if ( ! $user instanceof MyUser) { throw new \LogicException( '$user must be an instance of MyUser, ' .'other instances are not supported.' ); } } } Note:* PHP Analyzer uses reverse abstract interpretation to narrow down the types inside the if block in such a case. Add the method to the interface: interface User { /** @return string / public function getPassword(); /* @return string */ public function getDisplayName(); } Loading history...
76	1	$this->getIm()->sameValueAs($complex->getIm());
		0 ignored issues – show Bug introduced 2015-11-21 01:12 UTC by Report Bug Copy Issue Report It seems like you code against a concrete implementation and not the interface `ValueObjects\ValueObjectInterface` as the method `getIm()` does only exist in the following implementations of said interface: `ValueObjects\Number\Complex`. Let’s take a look at an example: interface User { /** @return string / public function getPassword(); } class MyUser implements User { public function getPassword() { // return something } public function getDisplayName() { // return some name. } } class AuthSystem { public function authenticate(User $user) { $this->logger->info(sprintf('Authenticating %s.', $user->getDisplayName())); // do something. } } In the above example, the authenticate() method works fine as long as you just pass instances of MyUser. However, if you now also want to pass a different implementation of User which does not have a getDisplayName() method, the code will break. Available Fixes Change the type-hint for the parameter: class AuthSystem { public function authenticate(MyUser $user) { / ... / } } Add an additional type-check: class AuthSystem { public function authenticate(User $user) { if ($user instanceof MyUser) { $this->logger->info(/* ... /); } // or alternatively if ( ! $user instanceof MyUser) { throw new \LogicException( '$user must be an instance of MyUser, ' .'other instances are not supported.' ); } } } Note:* PHP Analyzer uses reverse abstract interpretation to narrow down the types inside the if block in such a case. Add the method to the interface: interface User { /** @return string / public function getPassword(); /* @return string */ public function getDisplayName(); } Loading history...
77		}
78
79		/**
80		* Returns the native value of the real and imaginary parts as an array
81		*
82		* @return array
83		*/
84	1	public function toNative()
85		{
86		return array(
87	1	$this->getReal()->toNative(),
88	1	$this->getIm()->toNative()
89	1	);
90		}
91
92		/**
93		* Returns the real part of the complex number
94		*
95		* @return Real
96		*/
97	7	public function getReal()
98		{
99	7	return clone $this->real;
100		}
101
102		/**
103		* Returns the imaginary part of the complex number
104		*
105		* @return Real
106		*/
107	7	public function getIm()
108		{
109	7	return clone $this->im;
110		}
111
112		/**
113		* Returns the modulus (or absolute value or magnitude) of the Complex number
114		*
115		* @return Real
116		*/
117	2	public function getModulus()
118		{
119	2	$real = $this->getReal()->toNative();
120	2	$im = $this->getIm()->toNative();
121	2	$mod = \sqrt(\pow($real, 2) + \pow($im, 2));
122
123	2	return new Real($mod);
124		}
125
126		/**
127		* Returns the argument (or phase) of the Complex number
128		*
129		* @return Real
130		*/
131	2	public function getArgument()
132		{
133	2	$real = $this->getReal()->toNative();
134	2	$im = $this->getIm()->toNative();
135	2	$arg = \atan2($im, $real);
136
137	2	return new Real($arg);
138		}
139
140		/**
141		* Returns a native string version of the Complex object in format "${real} +\|- ${complex}i"
142		*
143		* @return string
144		*/
145	1	public function __toString()
146		{
147	1	$format = '%g %+gi';
148	1	$real = $this->getReal()->toNative();
149	1	$im = $this->getIm()->toNative();
150	1	$string = \sprintf($format, $real, $im);
151
152	1	return \preg_replace('/(\+\|-)/', '$1 ', $string);
153		}
154		}
155

nicolopignatelli / valueobjects

Complex::fromPolar() A last analyzed 2017-04-18 19:08 UTC

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Complex::fromPolar() A
last analyzed 2017-04-18 19:08 UTC