1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
<?php
/**
* Zend Framework (http://framework.zend.com/)
*
* @link http://github.com/zendframework/zf2 for the canonical source repository
* @copyright Copyright (c) 2005-2016 Zend Technologies USA Inc. (http://www.zend.com)
* @license http://framework.zend.com/license/new-bsd New BSD License
*/
namespace Zend\Di\ServiceLocator;
use Zend\Di\Di;
use Zend\Di\Exception;
/**
* Proxy used to analyze how instances are created by a given Di. Overrides Zend\Di\Di to produce artifacts that
* represent the process used to instantiate a particular instance
*/
class DependencyInjectorProxy extends Di
{
/**
* @var Di
*/
protected $di;
/**
* @param Di $di
*/
public function __construct(Di $di)
{
$this->di = $di;
$this->definitions = $di->definitions();
$this->instanceManager = $di->instanceManager();
}
/**
* {@inheritDoc}
* @return GeneratorInstance
*/
public function get($name, array $params = [])
{
return parent::get($name, $params);
}
/**
* {@inheritDoc}
* @return GeneratorInstance
*/
public function newInstance($name, array $params = [], $isShared = true)
{
$instance = parent::newInstance($name, $params, $isShared);
if ($instance instanceof GeneratorInstance) {
/* @var $instance GeneratorInstance */
$instance->setShared($isShared);
// When a callback is used, we don't know instance the class name.
// That's why we assume $name as the instance alias
if (null === $instance->getName()) {
$instance->setAlias($name);
}
}
return $instance;
}
/**
* {@inheritDoc}
* @return GeneratorInstance
*/
public function createInstanceViaConstructor($class, $params, $alias = null)
{
$callParameters = [];
if ($this->di->definitions->hasMethod($class, '__construct')
&& (count($this->di->definitions->getMethodParameters($class, '__construct')) > 0)
) {
$callParameters = $this->resolveMethodParameters($class, '__construct', $params, $alias, true, true);
$callParameters = $callParameters ?: [];
}
return new GeneratorInstance($class, $alias, '__construct', $callParameters);
}
/**
* {@inheritDoc}
* @throws \Zend\Di\Exception\InvalidCallbackException
* @return GeneratorInstance
*/
public function createInstanceViaCallback($callback, $params, $alias)
{
if (is_string($callback)) {
$callback = explode('::', $callback);
}
if (!is_callable($callback)) {
throw new Exception\InvalidCallbackException('An invalid constructor callback was provided');
}
if (!is_array($callback) || is_object($callback[0])) {
throw new Exception\InvalidCallbackException(
'For purposes of service locator generation, constructor callbacks must refer to static methods only'
);
}
$class = $callback[0];
$method = $callback[1];
$callParameters = [];
if ($this->di->definitions->hasMethod($class, $method)) {
$callParameters = $this->resolveMethodParameters($class, $method, $params, $alias, true, true);
}
$callParameters = $callParameters ?: [];
return new GeneratorInstance(null, $alias, $callback, $callParameters);
}
/**
* {@inheritDoc}
*/
public function handleInjectionMethodForObject($class, $method, $params, $alias, $isRequired)
{
return [
'method' => $method,
'params' => $this->resolveMethodParameters($class, $method, $params, $alias, $isRequired),
];
}
/**
* {@inheritDoc}
*/
protected function resolveAndCallInjectionMethodForInstance($instance, $method, $params, $alias, $methodIsRequired, $methodClass = null)
{
if (!$instance instanceof GeneratorInstance) {
return parent::resolveAndCallInjectionMethodForInstance($instance, $method, $params, $alias, $methodIsRequired, $methodClass);
}
/* @var $instance GeneratorInstance */
$methodClass = $instance->getClass();
$callParameters = $this->resolveMethodParameters($methodClass, $method, $params, $alias, $methodIsRequired);
if ($callParameters !== false) {
$instance->addMethod([
'method' => $method,
'params' => $callParameters,
]);
return true;
}
return false;
}
/**
* {@inheritDoc}
*/
protected function getClass($instance)
{
if ($instance instanceof GeneratorInstance) {
/* @var $instance GeneratorInstance */
return $instance->getClass();
}
return parent::getClass($instance);
}
}