Currency   A
last analyzed

Complexity

Total Complexity 7

Size/Duplication

Total Lines 69
Duplicated Lines 0 %

Coupling/Cohesion

Components 1
Dependencies 3

Test Coverage

Coverage 88.24%

Importance

Changes 0
Metric Value
wmc 7
lcom 1
cbo 3
dl 0
loc 69
ccs 15
cts 17
cp 0.8824
rs 10
c 0
b 0
f 0

6 Methods

Rating   Name   Duplication   Size   Complexity  
A fromNative() 0 6 1
A __construct() 0 5 1
A sameValueAs() 0 8 2
A getCode() 0 4 1
A __toString() 0 4 1
A jsonSerialize() 0 4 1
1
<?php
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namespace ValueObjects\Money;
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use Money\Currency as BaseCurrency;
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use ValueObjects\Util\Util;
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use ValueObjects\ValueObjectInterface;
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class Currency implements ValueObjectInterface
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{
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    /** @var BaseCurrency */
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    protected $currency;
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    /** @var CurrencyCode  */
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    protected $code;
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    /**
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     * Returns a new Currency object from native string currency code
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     *
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     * @param  string $code Currency code
0 ignored issues
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Bug introduced by
There is no parameter named $code. 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.

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     * @return static
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     */
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    public static function fromNative()
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    {
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        $code = CurrencyCode::get(func_get_arg(0));
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        return new static($code);
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    }
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    public function __construct(CurrencyCode $code)
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    {
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        $this->code     = $code;
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        $this->currency = new BaseCurrency($code->toNative());
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    }
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    /**
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     * Tells whether two Currency are equal by comparing their names
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     *
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     * @param  ValueObjectInterface $currency
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     * @return bool
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     */
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    public function sameValueAs(ValueObjectInterface $currency)
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    {
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        if (false === Util::classEquals($this, $currency)) {
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            return false;
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        }
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        return $this->getCode()->toNative() == $currency->getCode()->toNative();
0 ignored issues
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Bug introduced by
It seems like you code against a concrete implementation and not the interface ValueObjects\ValueObjectInterface as the method getCode() does only exist in the following implementations of said interface: ValueObjects\Geography\Country, ValueObjects\Money\Currency.

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

  1. Change the type-hint for the parameter:

    class AuthSystem
    {
        public function authenticate(MyUser $user) { /* ... */ }
    }
    
  2. 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.
  1. Add the method to the interface:

    interface User
    {
        /** @return string */
        public function getPassword();
    
        /** @return string */
        public function getDisplayName();
    }
    
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    }
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    /**
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     * Returns currency code
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     *
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     * @return CurrencyCode
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     */
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    public function getCode()
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    {
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        return $this->code;
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    }
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    /**
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     * Returns string representation of the currency
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     *
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     * @return string
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     */
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    public function __toString()
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    {
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        return $this->getCode()->toNative();
0 ignored issues
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Bug Compatibility introduced by
The expression $this->getCode()->toNative(); of type null|boolean|integer|double|string adds the type boolean to the return on line 68 which is incompatible with the return type declared by the interface ValueObjects\ValueObjectInterface::__toString of type string.
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    }
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    function jsonSerialize()
0 ignored issues
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Best Practice introduced by
It is generally recommended to explicitly declare the visibility for methods.

Adding explicit visibility (private, protected, or public) is generally recommend to communicate to other developers how, and from where this method is intended to be used.

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Comprehensibility Best Practice introduced by
It is recommend to declare an explicit visibility for jsonSerialize.

Generally, we recommend to declare visibility for all methods in your source code. This has the advantage of clearly communication to other developers, and also yourself, how this method should be consumed.

If you are not sure which visibility to choose, it is a good idea to start with the most restrictive visibility, and then raise visibility as needed, i.e. start with private, and only raise it to protected if a sub-class needs to have access, or public if an external class needs access.

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    {
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        return $this->code;
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    }
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}
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