Auto Args

Auto Args provides a system for automatically resolving arguments for any callable. This can also be referred to as Auto wiring.

Installation

Install with composer at krak/auto-args.

Usage

<?php

use Krak\AutoArgs;

$args = new AutoArgs();

$context = [
    'vars' => ['a' => 1],
    'objects' => [new SplStack()],
];

$func = function($a, SplDoublyLinkedList $stack, $b = 1) {
    assert($a == 1 && $b === 1);
};

$args->invoke($func, $context);

Container Integration

<?php

use Krak\AutoArgs,
    Krak\Cargo,
    Interop\Container\ContainerInterface;

$args = new AutoArgs();
$c = Cargo\container();
$c[SplStack::class] = function() {
    return new SplStack();
};

$context = [
    'container' => $c->toInterop()
];

$func = function(ContainerInterface $container, SplStack $stack) {

};

$args->invoke($func, $context);

API

Class AutoArgs

__construct($resolve_arg = null)

Accepts an argument resolver which will accept Argument metadata and context and return the proper argument for it. If none is supplied, the default stack is created and composed instead.

mixed invoke(callable $callable, array $context)

Invokes a callable and resolves the arguments from the argument resolver and given context.

mixed construct($class_name, array $context)

Constructs a an object from the class name and resolves the arguments for the constructor

array resolveArguments(callable $callable, array $context)

Returns the array of resolved arguments for the given callable. An exception will be thrown if no argument was able to be resolved.

Krak\Mw\MwStack ::createStack()

Returns a configured instance of an mw stack.