Added new 'resolvable' and 'isAlias' methods to the container.

src/Illuminate/Container/Container.php

@@ -58,6 +58,17 @@ class Container implements ArrayAccess {
	 */
	protected $globalResolvingCallbacks = array();

	/**
	 * Determine if a given string is resolvable.
	 *
	 * @param  string  $abstract
	 * @return bool
	 */
	protected function resolvable($abstract)
	{
		return $this->bound($abstract) || $this->isAlias($abstract);
	}

	/**
	 * Determine if the given abstract type has been bound.
	 *
@@ -69,6 +80,17 @@ public function bound($abstract)
		return isset($this[$abstract]) || isset($this->instances[$abstract]);
	}

	/**
	 * Determine if a given string is an alias.
	 *
	 * @param  string  $name
	 * @return bool
	 */
	public function isAlias($name)
	{
		return isset($this->aliases[$name]);
	}

	/**
	 * Register a binding with the container.
	 *

src/Illuminate/Foundation/changes.json

@@ -35,7 +35,8 @@
		{"message": "Cloned Eloquent query builders now clone the underlying query builder.", "backport": null},
		{"message": "Allow for passing of custom attributes into Validator::make as fourth parameter.", "backport": null},
		{"message": "Allow comma delimited list of queues to be passed to queue:listen / queue:work to implement queue priority.", "backport": null},
		{"message": "When new bindings are added to container, old aliases bound to that key will now be dropped.", "backport": null}
		{"message": "When new bindings are added to container, old aliases bound to that key will now be dropped.", "backport": null},
		{"message": "Added new 'resolvable' and 'isAlias' methods to the container.", "backport": null}
	],
	"4.0.x": [
		{"message": "Added implode method to query builder and Collection class.", "backport": null},