Issues in Container.php (master) - Issues in master - PuShaoWei/SimpleEloquent - Measure and Improve Code Quality continuously with Scrutinizer

Issues (99)

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Cross-Site Scripting

Cross-Site Scripting enables an attacker to inject code into the response of a web-request that is viewed by other users. It can for example be used to bypass access controls, or even to take over other users' accounts.

File Exposure

File Exposure allows an attacker to gain access to local files that he should not be able to access. These files can for example include database credentials, or other configuration files.

File Manipulation

File Manipulation enables an attacker to write custom data to files. This potentially leads to injection of arbitrary code on the server.

Object Injection

Object Injection enables an attacker to inject an object into PHP code, and can lead to arbitrary code execution, file exposure, or file manipulation attacks.

Code Injection

Code Injection enables an attacker to execute arbitrary code on the server.

Response Splitting

Response Splitting can be used to send arbitrary responses.

File Inclusion

File Inclusion enables an attacker to inject custom files into PHP's file loading mechanism, either explicitly passed to include, or for example via PHP's auto-loading mechanism.

Command Injection

Command Injection enables an attacker to inject a shell command that is execute with the privileges of the web-server. This can be used to expose sensitive data, or gain access of your server.

SQL Injection

SQL Injection enables an attacker to execute arbitrary SQL code on your database server gaining access to user data, or manipulating user data.

XPath Injection

XPath Injection enables an attacker to modify the parts of XML document that are read. If that XML document is for example used for authentication, this can lead to further vulnerabilities similar to SQL Injection.

LDAP Injection

LDAP Injection enables an attacker to inject LDAP statements potentially granting permission to run unauthorized queries, or modify content inside the LDAP tree.

Header Injection

Other Vulnerability

This category comprises other attack vectors such as manipulating the PHP runtime, loading custom extensions, freezing the runtime, or similar.

Regex Injection

Regex Injection enables an attacker to execute arbitrary code in your PHP process.

XML Injection

XML Injection enables an attacker to read files on your local filesystem including configuration files, or can be abused to freeze your web-server process.

Variable Injection

Variable Injection enables an attacker to overwrite program variables with custom data, and can lead to further vulnerabilities.

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src/support/Container.php (6 issues)

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Bug 6

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<?php
namespace Childish\support;

use Closure;
use ArrayAccess;
use LogicException;
use ReflectionClass;
use ReflectionParameter;
use Exception;

/**
 * Container
 *
 * @author    Pu ShaoWei <[email protected]>
 * @date      2017/12/7
 * @version   1.0
 */
class Container implements ArrayAccess
{
    /**
     * The current globally available container (if any).
     *
     * @var static
     */
    protected static $instance;

    /**
     * An array of the types that have been resolved.
     *
     * @var array
     */
    protected $resolved = [];

    /**
     * The container's bindings.
     *
     * @var array
     */
    protected $bindings = [];

    /**
     * The container's method bindings.
     *
     * @var array
     */
    protected $methodBindings = [];

    /**
     * The container's shared instances.
     *
     * @var array
     */
    protected $instances = [];

    /**
     * The registered type aliases.
     *
     * @var array
     */
    protected $aliases = [];

    /**
     * The registered aliases keyed by the abstract name.
     *
     * @var array
     */
    protected $abstractAliases = [];

    /**
     * The extension closures for services.
     *
     * @var array
     */
    protected $extenders = [];

    /**
     * All of the registered tags.
     *
     * @var array
     */
    protected $tags = [];

    /**
     * The stack of concretions currently being built.
     *
     * @var array
     */
    protected $buildStack = [];

    /**
     * The parameter override stack.
     *
     * @var array
     */
    protected $with = [];

    /**
     * The contextual binding map.
     *
     * @var array
     */
    public $contextual = [];

    /**
     * All of the registered rebound callbacks.
     *
     * @var array
     */
    protected $reboundCallbacks = [];

    /**
     * All of the global resolving callbacks.
     *
     * @var array
     */
    protected $globalResolvingCallbacks = [];

    /**
     * All of the global after resolving callbacks.
     *
     * @var array
     */
    protected $globalAfterResolvingCallbacks = [];

    /**
     * All of the resolving callbacks by class type.
     *
     * @var array
     */
    protected $resolvingCallbacks = [];

    /**
     * All of the after resolving callbacks by class type.
     *
     * @var array
     */
    protected $afterResolvingCallbacks = [];


    /**
     * Determine if the given abstract type has been bound.
     *
     * @param  string $abstract
     * @return bool
     */
    public function bound($abstract)
    {
        return isset($this->bindings[$abstract]) ||
               isset($this->instances[$abstract]) ||
               $this->isAlias($abstract);
    }

    /**
     *  {@inheritdoc}
     */
    public function has($id)
    {
        return $this->bound($id);
    }

    /**
     * Determine if the given abstract type has been resolved.
     *
     * @param  string $abstract
     * @return bool
     */
    public function resolved($abstract)
    {
        if ($this->isAlias($abstract)) {
            $abstract = $this->getAlias($abstract);
        }

        return isset($this->resolved[$abstract]) ||
               isset($this->instances[$abstract]);
    }

    /**
     * Determine if a given type is shared.
     *
     * @param  string $abstract
     * @return bool
     */
    public function isShared($abstract)
    {
        return isset($this->instances[$abstract]) ||
               (isset($this->bindings[$abstract]['shared']) &&
                $this->bindings[$abstract]['shared'] === true);
    }

    /**
     * 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.
     *
     * @param  string|array         $abstract
     * @param  \Closure|string|null $concrete
     * @param  bool                 $shared
     * @return void
     */
    public function bind($abstract, $concrete = null, $shared = false)
    {
        // If no concrete type was given, we will simply set the concrete type to the
        // abstract type. After that, the concrete type to be registered as shared
        // without being forced to state their classes in both of the parameters.
        $this->dropStaleInstances($abstract);


        if (is_null($concrete)) {
            $concrete = $abstract;
        }

        // If the factory is not a Closure, it means it is just a class name which is
        // bound into this container to the abstract type and we will just wrap it
        // up inside its own Closure to give us more convenience when extending.
        if (!$concrete instanceof Closure) {
            $concrete = $this->getClosure($abstract, $concrete);
/**
 * @return array|string
 */
function returnsDifferentValues($x) {
    if ($x) {
        return 'foo';
    }

    return array();
}

$x = returnsDifferentValues($y);
if (is_array($x)) {
    // $x is an array.
}
        }

        $this->bindings[$abstract] = compact('concrete', 'shared');

        // If the abstract type was already resolved in this container we'll fire the
        // rebound listener so that any objects which have already gotten resolved
        // can have their copy of the object updated via the listener callbacks.
        if ($this->resolved($abstract)) {

            $this->rebound($abstract);

        }
    }

    /**
     * Get the Closure to be used when building a type.
     *
     * @param  string $abstract
     * @param  string $concrete
     * @return \Closure
     */
    protected function getClosure($abstract, $concrete)
    {
        return function ($container, $parameters = []) use ($abstract, $concrete) {
            if ($abstract == $concrete) {
                return $container->build($concrete);
            }

            return $container->make($concrete, $parameters);
        };
    }

    /**
     * Determine if the container has a method binding.
     *
     * @param  string $method
     * @return bool
     */
    public function hasMethodBinding($method)
    {
        return isset($this->methodBindings[$method]);
    }

    /**
     * Bind a callback to resolve with Container::call.
     *
     * @param  string   $method
     * @param  \Closure $callback
     * @return void
     */
    public function bindMethod($method, $callback)
    {
        $this->methodBindings[$method] = $callback;
    }

    /**
     * Get the method binding for the given method.
     *
     * @param  string $method
     * @param  mixed  $instance
     * @return mixed
     */
    public function callMethodBinding($method, $instance)
    {
        return call_user_func($this->methodBindings[$method], $instance, $this);
    }

    /**
     * Add a contextual binding to the container.
     *
     * @param  string          $concrete
     * @param  string          $abstract
     * @param  \Closure|string $implementation
     * @return void
     */
    public function addContextualBinding($concrete, $abstract, $implementation)
    {
        $this->contextual[$concrete][$this->getAlias($abstract)] = $implementation;
    }

    /**
     * Register a binding if it hasn't already been registered.
     *
     * @param  string               $abstract
     * @param  \Closure|string|null $concrete
     * @param  bool                 $shared
     * @return void
     */
    public function bindIf($abstract, $concrete = null, $shared = false)
    {
        if (!$this->bound($abstract)) {
            $this->bind($abstract, $concrete, $shared);
        }
    }

    /**
     * Register a shared binding in the container.
     *
     * @param  string|array         $abstract
     * @param  \Closure|string|null $concrete
     * @return void
     */
    public function singleton($abstract, $concrete = null)
    {
        $this->bind($abstract, $concrete, true);
    }

    /**
     * "Extend" an abstract type in the container.
     *
     * @param  string   $abstract
     * @param  \Closure $closure
     * @return void
     * @throws \InvalidArgumentException
     */
    public function extend($abstract, Closure $closure)
    {
        $abstract = $this->getAlias($abstract);

        if (isset($this->instances[$abstract])) {
            $this->instances[$abstract] = $closure($this->instances[$abstract], $this);

            $this->rebound($abstract);
        } else {
            $this->extenders[$abstract][] = $closure;

            if ($this->resolved($abstract)) {
                $this->rebound($abstract);
            }
        }
    }

    /**
     * Register an existing instance as shared in the container.
     *
     * @param  string $abstract
     * @param  mixed  $instance
     * @return mixed
     */
    public function instance($abstract, $instance)
    {
        $this->removeAbstractAlias($abstract);

        $isBound = $this->bound($abstract);

        unset($this->aliases[$abstract]);

        // We'll check to determine if this type has been bound before, and if it has
        // we will fire the rebound callbacks registered with the container and it
        // can be updated with consuming classes that have gotten resolved here.
        $this->instances[$abstract] = $instance;

        if ($isBound) {
            $this->rebound($abstract);
        }

        return $instance;
    }

    /**
     * Remove an alias from the contextual binding alias cache.
     *
     * @param  string $searched
     * @return void
     */
    protected function removeAbstractAlias($searched)
    {
        if (!isset($this->aliases[$searched])) {
            return;
        }

        foreach ($this->abstractAliases as $abstract => $aliases) {
            foreach ($aliases as $index => $alias) {
                if ($alias == $searched) {
                    unset($this->abstractAliases[$abstract][$index]);
                }
            }
        }
    }

    /**
     * Assign a set of tags to a given binding.
     *
     * @param  array|string $abstracts
     * @param  array|mixed  ...$tags
     * @return void
     */
    public function tag($abstracts, $tags)
    {
        $tags = is_array($tags) ? $tags : array_slice(func_get_args(), 1);

        foreach ($tags as $tag) {
            if (!isset($this->tags[$tag])) {
                $this->tags[$tag] = [];
            }

            foreach ((array)$abstracts as $abstract) {
                $this->tags[$tag][] = $abstract;
            }
        }
    }

    /**
     * Resolve all of the bindings for a given tag.
     *
     * @param  string $tag
     * @return array
     */
    public function tagged($tag)
    {
        $results = [];

        if (isset($this->tags[$tag])) {
            foreach ($this->tags[$tag] as $abstract) {
                $results[] = $this->make($abstract);
            }
        }

        return $results;
    }

    /**
     * Alias a type to a different name.
     *
     * @param  string $abstract
     * @param  string $alias
     * @return void
     */
    public function alias($abstract, $alias)
    {
        $this->aliases[$alias] = $abstract;

        $this->abstractAliases[$abstract][] = $alias;
    }

    /**
     * Bind a new callback to an abstract's rebind event.
     *
     * @param  string   $abstract
     * @param  \Closure $callback
     * @return mixed
     */
    public function rebinding($abstract, Closure $callback)
    {
        $this->reboundCallbacks[$abstract = $this->getAlias($abstract)][] = $callback;

        if ($this->bound($abstract)) {
            return $this->make($abstract);
        }
    }

    /**
     * Refresh an instance on the given target and method.
     *
     * @param  string $abstract
     * @param  mixed  $target
     * @param  string $method
     * @return mixed
     */
    public function refresh($abstract, $target, $method)
    {
        return $this->rebinding($abstract, function ($app, $instance) use ($target, $method) {
            $target->{$method}($instance);
        });
    }

    /**
     * Fire the "rebound" callbacks for the given abstract type.
     *
     * @param  string $abstract
     * @return void
     */
    protected function rebound($abstract)
    {
        $instance = $this->make($abstract);

        foreach ($this->getReboundCallbacks($abstract) as $callback) {
            call_user_func($callback, $this, $instance);
        }
    }

    /**
     * Get the rebound callbacks for a given type.
     *
     * @param  string $abstract
     * @return array
     */
    protected function getReboundCallbacks($abstract)
    {
        if (isset($this->reboundCallbacks[$abstract])) {
            return $this->reboundCallbacks[$abstract];
        }

        return [];
    }

    /**
     * Get a closure to resolve the given type from the container.
     *
     * @param  string $abstract
     * @return \Closure
     */
    public function factory($abstract)
    {
        return function () use ($abstract) {
            return $this->make($abstract);
        };
    }

    /**
     * An alias function name for make().
     *
     * @param  string $abstract
     * @param  array  $parameters
     * @return mixed
     */
    public function makeWith($abstract, array $parameters = [])
    {
        return $this->make($abstract, $parameters);
    }

    /**
     * Resolve the given type from the container.
     *
     * @param  string $abstract
     * @param  array  $parameters
     * @return mixed
     */
    public function make($abstract, array $parameters = [])
    {
        return $this->resolve($abstract, $parameters);
    }

    /**
     *  {@inheritdoc}
     */
    public function get($id)
    {
        if ($this->has($id)) {
            return $this->resolve($id);
        }

        throw new Exception;
    }

    /**
     * Resolve the given type from the container.
     *
     * @param  string $abstract
     * @param  array  $parameters
     * @return mixed
     */
    protected function resolve($abstract, $parameters = [])
    {
        $abstract = $this->getAlias($abstract);

        $needsContextualBuild = !empty($parameters) || !is_null(
                $this->getContextualConcrete($abstract)
            );

        // If an instance of the type is currently being managed as a singleton we'll
        // just return an existing instance instead of instantiating new instances
        // so the developer can keep using the same objects instance every time.
        if (isset($this->instances[$abstract]) && !$needsContextualBuild) {
            return $this->instances[$abstract];
        }

        $this->with[] = $parameters;

        $concrete = $this->getConcrete($abstract);

        // We're ready to instantiate an instance of the concrete type registered for
        // the binding. This will instantiate the types, as well as resolve any of
        // its "nested" dependencies recursively until all have gotten resolved.
        if ($this->isBuildable($concrete, $abstract)) {
            $object = $this->build($concrete);
        } else {
            $object = $this->make($concrete);
        }

        // If we defined any extenders for this type, we'll need to spin through them
        // and apply them to the object being built. This allows for the extension
        // of services, such as changing configuration or decorating the object.
        foreach ($this->getExtenders($abstract) as $extender) {
            $object = $extender($object, $this);
        }

        // If the requested type is registered as a singleton we'll want to cache off
        // the instances in "memory" so we can return it later without creating an
        // entirely new instance of an object on each subsequent request for it.
        if ($this->isShared($abstract) && !$needsContextualBuild) {
            $this->instances[$abstract] = $object;
        }

        $this->fireResolvingCallbacks($abstract, $object);

        // Before returning, we will also set the resolved flag to "true" and pop off
        // the parameter overrides for this build. After those two things are done
        // we will be ready to return back the fully constructed class instance.
        $this->resolved[$abstract] = true;

        array_pop($this->with);

        return $object;
    }

    /**
     * Get the concrete type for a given abstract.
     *
     * @param  string $abstract
     * @return mixed   $concrete
     */
    protected function getConcrete($abstract)
    {
        if (!is_null($concrete = $this->getContextualConcrete($abstract))) {
            return $concrete;
        }

        // If we don't have a registered resolver or concrete for the type, we'll just
        // assume each type is a concrete name and will attempt to resolve it as is
        // since the container should be able to resolve concretes automatically.
        if (isset($this->bindings[$abstract])) {
            return $this->bindings[$abstract]['concrete'];
        }

        return $abstract;
    }

    /**
     * Get the contextual concrete binding for the given abstract.
     *
     * @param  string $abstract
     * @return string|null
     */
    protected function getContextualConcrete($abstract)
    {
        if (!is_null($binding = $this->findInContextualBindings($abstract))) {
            return $binding;
        }

        // Next we need to see if a contextual binding might be bound under an alias of the
        // given abstract type. So, we will need to check if any aliases exist with this
        // type and then spin through them and check for contextual bindings on these.
        if (empty($this->abstractAliases[$abstract])) {
            return;
        }

        foreach ($this->abstractAliases[$abstract] as $alias) {
            if (!is_null($binding = $this->findInContextualBindings($alias))) {
                return $binding;
            }
        }
    }

    /**
     * Find the concrete binding for the given abstract in the contextual binding array.
     *
     * @param  string $abstract
     * @return string|null
     */
    protected function findInContextualBindings($abstract)
    {
        if (isset($this->contextual[end($this->buildStack)][$abstract])) {
            return $this->contextual[end($this->buildStack)][$abstract];
        }
    }

    /**
     * Determine if the given concrete is buildable.
     *
     * @param  mixed  $concrete
     * @param  string $abstract
     * @return bool
     */
    protected function isBuildable($concrete, $abstract)
    {
        return $concrete === $abstract || $concrete instanceof Closure;
    }

    /**
     * Instantiate a concrete instance of the given type.
     *
     * @param $concrete
     * @return mixed|object|void
     */
    public function build($concrete)
    {
        // If the concrete type is actually a Closure, we will just execute it and
        // hand back the results of the functions, which allows functions to be
        // used as resolvers for more fine-tuned resolution of these objects.
        if ($concrete instanceof Closure) {
            return $concrete($this, $this->getLastParameterOverride());
        }

        $reflector = new ReflectionClass($concrete);

        // If the type is not instantiable, the developer is attempting to resolve
        // an abstract type such as an Interface of Abstract Class and there is
        // no binding registered for the abstractions so we need to bail out.
        if (!$reflector->isInstantiable()) {
            return $this->notInstantiable($concrete);
        }

        $this->buildStack[] = $concrete;

        $constructor = $reflector->getConstructor();

        // If there are no constructors, that means there are no dependencies then
        // we can just resolve the instances of the objects right away, without
        // resolving any other types or dependencies out of these containers.
        if (is_null($constructor)) {
            array_pop($this->buildStack);

            return new $concrete;
        }

        $dependencies = $constructor->getParameters();

        // Once we have all the constructor's parameters we can create each of the
        // dependency instances and then use the reflection instances to make a
        // new instance of this class, injecting the created dependencies in.
        $instances = $this->resolveDependencies(
            $dependencies
        );

        array_pop($this->buildStack);

        return $reflector->newInstanceArgs($instances);
    }

    /**
     * Resolve all of the dependencies from the ReflectionParameters.
     *
     * @param  array $dependencies
     * @return array
     */
    protected function resolveDependencies(array $dependencies)
    {
        $results = [];

        foreach ($dependencies as $dependency) {
            // If this dependency has a override for this particular build we will use
            // that instead as the value. Otherwise, we will continue with this run
            // of resolutions and let reflection attempt to determine the result.
            if ($this->hasParameterOverride($dependency)) {
                $results[] = $this->getParameterOverride($dependency);

                continue;
            }

            // If the class is null, it means the dependency is a string or some other
            // primitive type which we can not resolve since it is not a class and
            // we will just bomb out with an error since we have no-where to go.
            $results[] = is_null($dependency->getClass())
                ? $this->resolvePrimitive($dependency)
                : $this->resolveClass($dependency);
        }

        return $results;
    }

    /**
     * Determine if the given dependency has a parameter override.
     *
     * @param  \ReflectionParameter $dependency
     * @return bool
     */
    protected function hasParameterOverride($dependency)
    {
        return array_key_exists(
            $dependency->name, $this->getLastParameterOverride()
        );
    }

    /**
     * Get a parameter override for a dependency.
     *
     * @param  \ReflectionParameter $dependency
     * @return mixed
     */
    protected function getParameterOverride($dependency)
    {
        return $this->getLastParameterOverride()[$dependency->name];
    }

    /**
     * Get the last parameter override.
     *
     * @return array
     */
    protected function getLastParameterOverride()
    {
        return count($this->with) ? end($this->with) : [];
    }

    /**
     * Resolve a non-class hinted primitive dependency.
     *
     * @param  \ReflectionParameter $parameter
     * @return mixed|null|string
     */
    protected function resolvePrimitive(ReflectionParameter $parameter)
    {
        if (!is_null($concrete = $this->getContextualConcrete('$' . $parameter->name))) {
            return $concrete instanceof Closure ? $concrete($this) : $concrete;
        }

        if ($parameter->isDefaultValueAvailable()) {
            return $parameter->getDefaultValue();
        }

        $this->unresolvablePrimitive($parameter);
    }

    /**
     * Resolve a class based dependency from the container.
     *
     * @param \ReflectionParameter $parameter
     * @return mixed
     * @throws \Exception
     */
    protected function resolveClass(ReflectionParameter $parameter)
    {
        try {
            return $this->make($parameter->getClass()->name);
        }

            // If we can not resolve the class instance, we will check to see if the value
            // is optional, and if it is we will return the optional parameter value as
            // the value of the dependency, similarly to how we do this with scalars.
        catch (Exception $e) {
            if ($parameter->isOptional()) {
                return $parameter->getDefaultValue();
            }

            throw $e;
        }
    }

    /**
     * Throw an exception that the concrete is not instantiable.
     *
     * @param $concrete
     * @throws \Exception
     */
    protected function notInstantiable($concrete)
    {
        if (!empty($this->buildStack)) {
            $previous = implode(', ', $this->buildStack);

            $message = "Target [$concrete] is not instantiable while building [$previous].";
        } else {
            $message = "Target [$concrete] is not instantiable.";
        }

        throw new Exception($message);
    }

    /**
     * Throw an exception for an unresolvable primitive.
     *
     * @param \ReflectionParameter $parameter
     * @throws \Exception
     */
    protected function unresolvablePrimitive(ReflectionParameter $parameter)
    {
        $message = "Unresolvable dependency resolving [$parameter] in class {$parameter->getDeclaringClass()->getName()}";


        throw new Exception($message);
    }

    /**
     * Register a new resolving callback.
     *
     * @param  string        $abstract
     * @param  \Closure|null $callback
     * @return void
     */
    public function resolving($abstract, Closure $callback = null)
    {
        if (is_string($abstract)) {
            $abstract = $this->getAlias($abstract);
        }

        if (is_null($callback) && $abstract instanceof Closure) {
            $this->globalResolvingCallbacks[] = $abstract;
        } else {
            $this->resolvingCallbacks[$abstract][] = $callback;
        }
    }

    /**
     * Register a new after resolving callback for all types.
     *
     * @param  string        $abstract
     * @param  \Closure|null $callback
     * @return void
     */
    public function afterResolving($abstract, Closure $callback = null)
    {
        if (is_string($abstract)) {
            $abstract = $this->getAlias($abstract);
        }

        if ($abstract instanceof Closure && is_null($callback)) {
            $this->globalAfterResolvingCallbacks[] = $abstract;
        } else {
            $this->afterResolvingCallbacks[$abstract][] = $callback;
        }
    }

    /**
     * Fire all of the resolving callbacks.
     *
     * @param  string $abstract
     * @param  mixed  $object
     * @return void
     */
    protected function fireResolvingCallbacks($abstract, $object)
    {
        $this->fireCallbackArray($object, $this->globalResolvingCallbacks);

        $this->fireCallbackArray(
            $object, $this->getCallbacksForType($abstract, $object, $this->resolvingCallbacks)
        );

        $this->fireAfterResolvingCallbacks($abstract, $object);
    }

    /**
     * Fire all of the after resolving callbacks.
     *
     * @param  string $abstract
     * @param  mixed  $object
     * @return void
     */
    protected function fireAfterResolvingCallbacks($abstract, $object)
    {
        $this->fireCallbackArray($object, $this->globalAfterResolvingCallbacks);

        $this->fireCallbackArray(
            $object, $this->getCallbacksForType($abstract, $object, $this->afterResolvingCallbacks)
        );
    }

    /**
     * Get all callbacks for a given type.
     *
     * @param  string $abstract
     * @param  object $object
     * @param  array  $callbacksPerType
     * @return array
     */
    protected function getCallbacksForType($abstract, $object, array $callbacksPerType)
    {
        $results = [];

        foreach ($callbacksPerType as $type => $callbacks) {
            if ($type === $abstract || $object instanceof $type) {
                $results = array_merge($results, $callbacks);
            }
        }

        return $results;
    }

    /**
     * Fire an array of callbacks with an object.
     *
     * @param  mixed $object
     * @param  array $callbacks
     * @return void
     */
    protected function fireCallbackArray($object, array $callbacks)
    {
        foreach ($callbacks as $callback) {
            $callback($object, $this);
        }
    }

    /**
     * Get the container's bindings.
     *
     * @return array
     */
    public function getBindings()
    {
        return $this->bindings;
    }

    /**
     * Get the alias for an abstract if available.
     *
     * @param  string $abstract
     * @return string
     * @throws \LogicException
     */
    public function getAlias($abstract)
    {
        if (!isset($this->aliases[$abstract])) {
            return $abstract;
        }

        if ($this->aliases[$abstract] === $abstract) {
            throw new LogicException("[{$abstract}] is aliased to itself.");
        }

        return $this->getAlias($this->aliases[$abstract]);
    }

    /**
     * Get the extender callbacks for a given type.
     *
     * @param  string $abstract
     * @return array
     */
    protected function getExtenders($abstract)
    {
        $abstract = $this->getAlias($abstract);

        if (isset($this->extenders[$abstract])) {
            return $this->extenders[$abstract];
        }

        return [];
    }

    /**
     * Remove all of the extender callbacks for a given type.
     *
     * @param  string $abstract
     * @return void
     */
    public function forgetExtenders($abstract)
    {
        unset($this->extenders[$this->getAlias($abstract)]);
    }

    /**
     * Drop all of the stale instances and aliases.
     *
     * @param  string $abstract
     * @return void
     */
    protected function dropStaleInstances($abstract)
    {
        unset($this->instances[$abstract], $this->aliases[$abstract]);
    }

    /**
     * Remove a resolved instance from the instance cache.
     *
     * @param  string $abstract
     * @return void
     */
    public function forgetInstance($abstract)
    {
        unset($this->instances[$abstract]);
    }

    /**
     * Clear all of the instances from the container.
     *
     * @return void
     */
    public function forgetInstances()
    {
        $this->instances = [];
    }

    /**
     * Flush the container of all bindings and resolved instances.
     *
     * @return void
     */
    public function flush()
    {
        $this->aliases         = [];
        $this->resolved        = [];
        $this->bindings        = [];
        $this->instances       = [];
        $this->abstractAliases = [];
    }

    /**
     * Set the globally available instance of the container.
     *
     * @return static
     */
    public static function getInstance()
    {
        if (is_null(static::$instance)) {
            static::$instance = new static;
        }

        return static::$instance;
    }

    /**
     * Set the shared instance of the container.
     *
     * @param  $container
     * @return static
     */
    public static function setInstance($container = null)
    {
        return static::$instance = $container;
    }

    /**
     * Determine if a given offset exists.
     *
     * @param  string $key
     * @return bool
     */
    public function offsetExists($key)
    {
        return $this->bound($key);
    }

    /**
     * Get the value at a given offset.
     *
     * @param  string $key
     * @return mixed
     */
    public function offsetGet($key)
    {
        return $this->make($key);
    }

    /**
     * Set the value at a given offset.
     *
     * @param  string $key
     * @param  mixed  $value
     * @return void
     */
    public function offsetSet($key, $value)
    {
        $this->bind($key, $value instanceof Closure ? $value : function () use ($value) {
            return $value;
        });
    }

    /**
     * Unset the value at a given offset.
     *
     * @param  string $key
     * @return void
     */
    public function offsetUnset($key)
    {
        unset($this->bindings[$key], $this->instances[$key], $this->resolved[$key]);
    }

    /**
     * Dynamically access container services.
     *
     * @param  string $key
     * @return mixed
     */
    public function __get($key)
    {
        return $this[$key];
    }

    /**
     * Dynamically set container services.
     *
     * @param  string $key
     * @param  mixed  $value
     * @return void
     */
    public function __set($key, $value)
    {
        $this[$key] = $value;
    }
}


PuShaoWei / SimpleEloquent

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src/support/Container.php (6 issues)

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