Innmind / Reflection

ReflectionClass.php

<?php
declare(strict_types = 1);

namespace Innmind\Reflection;

use Innmind\Immutable\Collection;
use Innmind\Immutable\CollectionInterface;
use Innmind\Reflection\InjectionStrategy\DefaultInjectionStrategies;
use Innmind\Reflection\InjectionStrategy\InjectionStrategies;
use Innmind\Reflection\Instanciator\ReflectionInstanciator;

class ReflectionClass
{
    private $class;
    private $properties;
    private $injectionStrategies;
    private $instanciator;

    public function __construct(
        string $class,
        CollectionInterface $properties = null,
        InjectionStrategies $injectionStrategies = null,
        InstanciatorInterface $instanciator = null
    ) {
        $injectionStrategies = $injectionStrategies ?? new DefaultInjectionStrategies();

        $this->class = $class;
        $this->properties = $properties ?? new Collection([]);
        $this->injectionStrategies = $injectionStrategies;
        $this->instanciator = $instanciator ?? new ReflectionInstanciator;
    }

    /**
     * Add a property to be injected in the new object
     *
     * @param string $property
     * @param mixed  $value
     *
     * @return self
     */
    public function withProperty(string $property, $value): self
    {
        return new self(
            $this->class,
            $this->properties->set($property, $value),
            $this->injectionStrategies,
            $this->instanciator
        );
    }

    /**
     * Add a set of properties that need to be injected
     *
     * @param array $properties
     *
     * @return self
     */
    public function withProperties(array $properties): self
    {
        return new self(
            $this->class,
            $this->properties->merge(new Collection($properties)),

new \Innmind\Immutable\Collection($properties) is of type object<Innmind\Immutable\Collection>, but the function expects a object<self>.

            $this->injectionStrategies,
            $this->instanciator
        );
    }

    /**
     * Return the collection of properties that will be injected in the object
     *
     * @return CollectionInterface
     */
    public function getProperties(): CollectionInterface
    {
        return $this->properties;
    }

    /**
     * Return the list of injection strategies used
     *
     * @return InjectionStrategies
     */
    public function getInjectionStrategies(): InjectionStrategies
    {
        return $this->injectionStrategies;
    }

    /**
     * Return the object instanciator
     *
     * @return InstanciatorInterface
     */
    public function getInstanciator(): InstanciatorInterface
    {
        return $this->instanciator;
    }

    /**
     * Return a new instance of the class
     *
     * @return object
     */
    public function buildObject()
    {
        $object = $this->instanciator->build($this->class, $this->properties);
        $parameters = $this->instanciator->getParameters($this->class);

        //avoid injecting the properties already used in the constructor
        $properties = $this
            ->properties
            ->filter(
                function($value, $property) use ($parameters) {
                    return !$parameters->contains($property);
                }
            );
        $refl = new ReflectionObject(
            $object,
            $properties,
            $this->injectionStrategies
        );

        return $refl->buildObject();
    }
}