|
1
|
|
|
<?php |
|
2
|
|
|
|
|
3
|
|
|
namespace Zenstruck\Callback; |
|
4
|
|
|
|
|
5
|
|
|
/** |
|
6
|
|
|
* @author Kevin Bond <[email protected]> |
|
7
|
|
|
*/ |
|
8
|
|
|
final class Argument |
|
9
|
|
|
{ |
|
10
|
|
|
/** |
|
11
|
|
|
* If type is class, parent classes are supported. |
|
12
|
|
|
*/ |
|
13
|
|
|
public const COVARIANCE = 2; |
|
14
|
|
|
|
|
15
|
|
|
/** |
|
16
|
|
|
* If type is class, child classes are supported. |
|
17
|
|
|
*/ |
|
18
|
|
|
public const CONTRAVARIANCE = 4; |
|
19
|
|
|
|
|
20
|
|
|
/** |
|
21
|
|
|
* If type is string, do not support other scalar types. Follows |
|
22
|
|
|
* same logic as "declare(strict_types=1)". |
|
23
|
|
|
*/ |
|
24
|
|
|
public const STRICT = 8; |
|
25
|
|
|
|
|
26
|
|
|
/** |
|
27
|
|
|
* If type is float, do not support int (implies {@see STRICT). |
|
28
|
|
|
*/ |
|
29
|
|
|
public const VERY_STRICT = 16; |
|
30
|
|
|
|
|
31
|
|
|
private const TYPE_NORMALIZE_MAP = [ |
|
32
|
|
|
'boolean' => 'bool', |
|
33
|
|
|
'integer' => 'int', |
|
34
|
|
|
'double' => 'float', |
|
35
|
|
|
'resource (closed)' => 'resource', |
|
36
|
|
|
]; |
|
37
|
|
|
|
|
38
|
|
|
private const ALLOWED_TYPE_MAP = [ |
|
39
|
|
|
'string' => ['bool', 'int', 'float'], |
|
40
|
|
|
'bool' => ['string', 'int', 'float'], |
|
41
|
|
|
'float' => ['string', 'int', 'bool'], |
|
42
|
|
|
'int' => ['string', 'float', 'bool'], |
|
43
|
|
|
]; |
|
44
|
|
|
|
|
45
|
|
|
/** @var \ReflectionParameter */ |
|
46
|
|
|
private $parameter; |
|
47
|
|
|
|
|
48
|
|
|
public function __construct(\ReflectionParameter $parameter) |
|
49
|
|
|
{ |
|
50
|
|
|
$this->parameter = $parameter; |
|
51
|
|
|
} |
|
52
|
|
|
|
|
53
|
|
|
public function type(): ?string |
|
54
|
|
|
{ |
|
55
|
|
|
return $this->hasType() ? \implode('|', $this->types()) : null; |
|
56
|
|
|
} |
|
57
|
|
|
|
|
58
|
|
|
/** |
|
59
|
|
|
* @return string[] |
|
60
|
|
|
*/ |
|
61
|
|
|
public function types(): array |
|
62
|
|
|
{ |
|
63
|
|
|
return \array_map(static function(\ReflectionNamedType $type) { return $type->getName(); }, $this->reflectionTypes()); |
|
64
|
|
|
} |
|
65
|
|
|
|
|
66
|
|
|
public function hasType(): bool |
|
67
|
|
|
{ |
|
68
|
|
|
return !empty($this->types()); |
|
69
|
|
|
} |
|
70
|
|
|
|
|
71
|
|
|
public function isUnionType(): bool |
|
72
|
|
|
{ |
|
73
|
|
|
return \count($this->types()) > 1; |
|
74
|
|
|
} |
|
75
|
|
|
|
|
76
|
|
|
/** |
|
77
|
|
|
* @param string $type The type to check if this argument supports |
|
78
|
|
|
* @param int $options {@see COVARIANCE}, {@see CONTRAVARIANCE} |
|
79
|
|
|
* Bitwise disjunction of above is allowed |
|
80
|
|
|
*/ |
|
81
|
|
|
public function supports(string $type, int $options = self::COVARIANCE): bool |
|
82
|
|
|
{ |
|
83
|
|
|
if (!$this->hasType()) { |
|
84
|
|
|
// no type-hint so any type is supported |
|
85
|
|
|
return true; |
|
86
|
|
|
} |
|
87
|
|
|
|
|
88
|
|
|
if ('null' === \mb_strtolower($type) && $this->parameter->allowsNull()) { |
|
89
|
|
|
return true; |
|
90
|
|
|
} |
|
91
|
|
|
|
|
92
|
|
|
$type = self::TYPE_NORMALIZE_MAP[$type] ?? $type; |
|
93
|
|
|
|
|
94
|
|
|
foreach ($this->types() as $supportedType) { |
|
95
|
|
|
if ($supportedType === $type) { |
|
96
|
|
|
return true; |
|
97
|
|
|
} |
|
98
|
|
|
|
|
99
|
|
|
if ($options & self::COVARIANCE && \is_a($type, $supportedType, true)) { |
|
100
|
|
|
return true; |
|
101
|
|
|
} |
|
102
|
|
|
|
|
103
|
|
|
if ($options & self::CONTRAVARIANCE && \is_a($supportedType, $type, true)) { |
|
104
|
|
|
return true; |
|
105
|
|
|
} |
|
106
|
|
|
|
|
107
|
|
|
if ($options & self::VERY_STRICT) { |
|
108
|
|
|
continue; |
|
109
|
|
|
} |
|
110
|
|
|
|
|
111
|
|
|
if ('float' === $supportedType && 'int' === $type) { |
|
112
|
|
|
// strict typing allows int to pass a float validation |
|
113
|
|
|
return true; |
|
114
|
|
|
} |
|
115
|
|
|
|
|
116
|
|
|
if ($options & self::STRICT) { |
|
117
|
|
|
continue; |
|
118
|
|
|
} |
|
119
|
|
|
|
|
120
|
|
|
if (\in_array($type, self::ALLOWED_TYPE_MAP[$supportedType] ?? [], true)) { |
|
121
|
|
|
return true; |
|
122
|
|
|
} |
|
123
|
|
|
|
|
124
|
|
|
if (\method_exists($type, '__toString')) { |
|
125
|
|
|
return true; |
|
126
|
|
|
} |
|
127
|
|
|
} |
|
128
|
|
|
|
|
129
|
|
|
return false; |
|
130
|
|
|
} |
|
131
|
|
|
|
|
132
|
|
|
/** |
|
133
|
|
|
* @param mixed $value |
|
134
|
|
|
* @param bool $strict {@see STRICT} |
|
135
|
|
|
*/ |
|
136
|
|
|
public function allows($value, bool $strict = false): bool |
|
137
|
|
|
{ |
|
138
|
|
|
if (!$this->hasType()) { |
|
139
|
|
|
// no type-hint so any type is supported |
|
140
|
|
|
return true; |
|
141
|
|
|
} |
|
142
|
|
|
|
|
143
|
|
|
$type = \is_object($value) ? \get_class($value) : \gettype($value); |
|
144
|
|
|
$type = self::TYPE_NORMALIZE_MAP[$type] ?? $type; |
|
145
|
|
|
$supports = $this->supports($type, $strict ? self::COVARIANCE|self::STRICT : self::COVARIANCE); |
|
146
|
|
|
|
|
147
|
|
|
if (!$supports) { |
|
148
|
|
|
return false; |
|
149
|
|
|
} |
|
150
|
|
|
|
|
151
|
|
|
if ('string' === $type && !\is_numeric($value) && !\in_array('string', $this->types(), true)) { |
|
152
|
|
|
// non-numeric strings cannot be used for float/int |
|
153
|
|
|
return false; |
|
154
|
|
|
} |
|
155
|
|
|
|
|
156
|
|
|
return true; |
|
157
|
|
|
} |
|
158
|
|
|
|
|
159
|
|
|
/** |
|
160
|
|
|
* @return \ReflectionNamedType[] |
|
161
|
|
|
*/ |
|
162
|
|
|
private function reflectionTypes(): array |
|
163
|
|
|
{ |
|
164
|
|
|
if (!$type = $this->parameter->getType()) { |
|
165
|
|
|
return []; |
|
166
|
|
|
} |
|
167
|
|
|
|
|
168
|
|
|
if ($type instanceof \ReflectionNamedType) { |
|
169
|
|
|
return [$type]; |
|
170
|
|
|
} |
|
171
|
|
|
|
|
172
|
|
|
/** @var \ReflectionUnionType $type */ |
|
173
|
|
|
return $type->getTypes(); |
|
174
|
|
|
} |
|
175
|
|
|
} |
|
176
|
|
|
|
zenstruck /
callback
