src/ObjectFactory.php
public static function getObjectFromSpec( $spec ) {
		$args = isset( $spec['args'] ) ? $spec['args'] : [];
		$expandArgs = !isset( $spec['closure_expansion'] ) ||
			$spec['closure_expansion'] === true;

		if ( $expandArgs ) {
			$args = static::expandClosures( $args );
		}

		if ( isset( $spec['class'] ) ) {
			$clazz = $spec['class'];
			if ( !$args ) {
				$obj = new $clazz();
			} else {
				$obj = static::constructClassInstance( $clazz, $args );
			}
		} elseif ( isset( $spec['factory'] ) ) {
			$obj = call_user_func_array( $spec['factory'], $args );
		} else {
			throw new InvalidArgumentException(
				'Provided specification lacks both factory and class parameters.'
			);
		}

		if ( isset( $spec['calls'] ) && is_array( $spec['calls'] ) ) {
			// Call additional methods on the newly created object
			foreach ( $spec['calls'] as $method => $margs ) {
				if ( $expandArgs ) {
					$margs = static::expandClosures( $margs );
				}
				call_user_func_array( [ $obj, $method ], $margs );
			}
		}

		return $obj;
	}
public static function getObjectFromSpec( $spec ) {
		$args = isset( $spec['args'] ) ? $spec['args'] : [];
		$expandArgs = !isset( $spec['closure_expansion'] ) ||
			$spec['closure_expansion'] === true;

		if ( $expandArgs ) {
			$args = static::expandClosures( $args );
		}

		if ( isset( $spec['class'] ) ) {
			$clazz = $spec['class'];
			if ( !$args ) {
				$obj = new $clazz();
			} else {
				$obj = static::constructClassInstance( $clazz, $args );
			}
		} elseif ( isset( $spec['factory'] ) ) {
			$obj = call_user_func_array( $spec['factory'], $args );
		} else {
			throw new InvalidArgumentException(
				'Provided specification lacks both factory and class parameters.'
			);
		}

		if ( isset( $spec['calls'] ) && is_array( $spec['calls'] ) ) {
			// Call additional methods on the newly created object
			foreach ( $spec['calls'] as $method => $margs ) {
				if ( $expandArgs ) {
					$margs = static::expandClosures( $margs );
				}
				call_user_func_array( [ $obj, $method ], $margs );
			}
		}

		return $obj;
	}
public static function getObjectFromSpec ( $ spec ) { $ args = isset ( $ spec [ 'args' ] ) ? $ spec [ 'args' ] : [ ] ; $ expandArgs = ! isset ( $ spec [ 'closure_expansion' ] ) || $ spec [ 'closure_expansion' ] === true ; if ( $ expandArgs ) { $ args = static :: expandClosures ( $ args ) ; } if ( isset ( $ spec [ 'class' ] ) ) { $ clazz = $ spec [ 'class' ] ; if ( ! $ args ) { $ obj = new $ clazz ( ) ; } else { $ obj = static :: constructClassInstance ( $ clazz , $ args ) ; } } elseif ( isset ( $ spec [ 'factory' ] ) ) { $ obj = call_user_func_array ( $ spec [ 'factory' ] , $ args ) ; } else { throw new InvalidArgumentException ( 'Provided specification lacks both factory and class parameters.' ) ; } if ( isset ( $ spec [ 'calls' ] ) && is_array ( $ spec [ 'calls' ] ) ) { // Call additional methods on the newly created object foreach ( $ spec [ 'calls' ] as $ method => $ margs ) { if ( $ expandArgs ) { $ margs = static :: expandClosures ( $ margs ) ; } call_user_func_array ( [ $ obj , $ method ] , $ margs ) ; } } return $ obj ; }
Instantiate an object based on a specification array.

The specification array must contain a 'class' key with string value
that specifies the class name to instantiate or a 'factory' key with
a callable (is_callable() === true). It can optionally contain
an 'args' key that provides arguments to pass to the
constructor/callable.

Values in the arguments collection which are Closure instances will be
expanded by invoking them with no arguments before passing the
resulting value on to the constructor/callable. This can be used to
pass IDatabase instances or other live objects to the
constructor/callable. This behavior can be suppressed by adding
closure_expansion => false to the specification.

The specification may also contain a 'calls' key that describes method
calls to make on the newly created object before returning it. This
pattern is often known as "setter injection". The value of this key is
expected to be an associative array with method names as keys and
argument lists as values. The argument list will be expanded (or not)
in the same way as the 'args' key for the main object.

@param array $spec Object specification
@return object
@throws InvalidArgumentException when object specification does not
contain 'class' or 'factory' keys
@throws ReflectionException when 'args' are supplied and 'class'
constructor is non-public or non-existent
Instantiate an object based on a specification array .