Passed
Push — master ( bd5d77...4b6223 )
by Thorsten
02:02
created

FromArrayTrait::fromArray()   D

Complexity

Conditions 10
Paths 50

Size

Total Lines 45
Code Lines 33

Duplication

Lines 0
Ratio 0 %

Code Coverage

Tests 0
CRAP Score 110

Importance

Changes 0
Metric Value
dl 0
loc 45
ccs 0
cts 44
cp 0
rs 4.8196
c 0
b 0
f 0
cc 10
eloc 33
nc 50
nop 1
crap 110

How to fix   Complexity   

Long Method

Small methods make your code easier to understand, in particular if combined with a good name. Besides, if your method is small, finding a good name is usually much easier.

For example, if you find yourself adding comments to a method's body, this is usually a good sign to extract the commented part to a new method, and use the comment as a starting point when coming up with a good name for this new method.

Commonly applied refactorings include:

1
<?php
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/**
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 * This file is part of the daikon-cqrs/message-bus project.
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 *
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 * For the full copyright and license information, please view the LICENSE
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 * file that was distributed with this source code.
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 */
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declare(strict_types=1);
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namespace Daikon\MessageBus;
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trait FromArrayTrait
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{
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    public static function fromArray(array $arrayState): MessageInterface
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    {
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        $classReflection = new \ReflectionClass(static::class);
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        $classes = [ $classReflection ];
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        $parent = $classReflection;
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        while ($parent = $parent->getParentClass()) {
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            $classes[] = $parent;
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        }
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        $valueFactories = [];
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        foreach ($classes as $curClass) {
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            $classProps = $curClass->getProperties();
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            foreach ($classProps as $prop) {
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                $propName = $prop->getName();
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                $docBlock = $prop->getDocComment();
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                if (!preg_match("/@MessageBus::deserialize\((.*)\)/", $docBlock, $matches)) {
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                    continue;
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                }
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                $factoryMethod = $matches[1];
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                if ($factoryMethod === '$ctor') {
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                    $valueFactories[$propName] = function ($value) use ($valueImplementor) {
0 ignored issues
show
Bug introduced by
The variable $valueImplementor does not exist. Did you forget to declare it?

This check marks access to variables or properties that have not been declared yet. While PHP has no explicit notion of declaring a variable, accessing it before a value is assigned to it is most likely a bug.

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35
                        return new $valueImplementor($value);
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                    };
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                } else {
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                    $valueFactories[$propName] = $factoryMethod;
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                }
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            }
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        }
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        $ctorReflection = $classReflection->getMethod("__construct");
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        $ctorArgs = [];
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        foreach ($ctorReflection->getParameters() as $argumentReflection) {
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            $argName = $argumentReflection->getName();
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            if (isset($arrayState[$argName])) {
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                if (isset($valueFactories[$argName])) {
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                    $ctorArgs[] = call_user_func($valueFactories[$argName], $arrayState[$argName]);
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                } else {
0 ignored issues
show
Unused Code introduced by
This else statement is empty and can be removed.

This check looks for the else branches of if statements that have no statements or where all statements have been commented out. This may be the result of changes for debugging or the code may simply be obsolete.

These else branches can be removed.

if (rand(1, 6) > 3) {
print "Check failed";
} else {
    //print "Check succeeded";
}

could be turned into

if (rand(1, 6) > 3) {
    print "Check failed";
}

This is much more concise to read.

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50
                    // missing factory annoation, throw exception or ignore?
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                }
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            } elseif ($argumentReflection->allowsNull()) {
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                $ctorArgs[] = null;
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            } else {
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                throw new \Exception("Missing required value for array-key: $argName while constructing from array");
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            }
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        }
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        return new static(...$ctorArgs);
0 ignored issues
show
Unused Code introduced by
The call to FromArrayTrait::__construct() has too many arguments starting with $ctorArgs.

This check compares calls to functions or methods with their respective definitions. If the call has more arguments than are defined, it raises an issue.

If a function is defined several times with a different number of parameters, the check may pick up the wrong definition and report false positives. One codebase where this has been known to happen is Wordpress.

In this case you can add the @ignore PhpDoc annotation to the duplicate definition and it will be ignored.

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59
    }
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}
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