PHP Deferred Callchain

This class simply provides a way to define fluent chain of method calls before having the instance you wan't to applty it to. Once the expected instance is available, simply call the chain on it.

Quality

Installation

php-deferred-callchain is installable via Composer

composer require jclaveau/php-deferred-callchain

Usage

Fluent call chain

$nameRobert = DeferredCallChain::new_()
    ->setName('Muda')
    ->setFirstName('Robert')
    ;

$mySubjectIMissedBefore = new Human;
$robert = $nameRobert( $mySubjectIMissedBefore );

echo $robert->getFullName(); // => "Robert Muda"
echo (string) $nameRobert;   // => "(new JClaveau\Async\DeferredCallChain)->setName('Muda')->setFirstName('Robert')"

Allowing a specific class, interface, type or a predefined instance as target of the later call.

$nameRobert = DeferredCallChain::new_("Alien")
    ->setName('Muda')
    ->setFirstName('Robert')
    ;

$mySubjectIMissedBefore = new Human;
$robert = $nameRobert( $mySubjectIMissedBefore );

// throws BadTargetClassException

$getCount = (new DeferredCallChain("\Traversable"))
    ->count()
    ;

$myCountableIMissedBefore = new CountableClass; // class implementing Countable

// throws BadTargetInterfaceException

$nameRobert = DeferredCallChain::new_("array")
    ->setName('Muda')
    ->setFirstName('Robert')
    ;

$mySubjectIMissedBefore = new Human;
$robert = $nameRobert( $mySubjectIMissedBefore );

// throws BadTargetTypeException

$myTarget = new Human;
$nameRobert = DeferredCallChain::new_($myTarget)
    ->setName('Muda')
    ->setFirstName('Robert')
    ;

$robert = $nameRobert( new Human );

// throws TargetAlreadyDefinedException

Working with arrays

$getSubColumnValue = (new DeferredCallChain)
    ['column_1']
    ['sub_column_3']
    ;

$sub_column_3_value = $getSubColumnValue( [
    'column_1' => [
        'sub_column_1' => 'lalala',
        'sub_column_2' => 'lololo',
        'sub_column_3' => 'lilili',
    ],
    'column_2' => [
        'sub_column_1' => 'lululu',
        'sub_column_2' => 'lelele',
        'sub_column_3' => 'lylyly',
    ],
] );

echo $sub_column_3_value;           // => "lilili"
echo (string) $getSubColumnValue;   // => "(new JClaveau\Async\DeferredCallChain)['column_1']['sub_column_3']"

More

• Docs
• Tests

Related

• https://github.com/danielsdeboer/pipe