1
|
|
|
<?php |
2
|
|
|
/** |
3
|
|
|
* This file is part of Railt package. |
4
|
|
|
* |
5
|
|
|
* For the full copyright and license information, please view the LICENSE |
6
|
|
|
* file that was distributed with this source code. |
7
|
|
|
*/ |
8
|
|
|
declare(strict_types=1); |
9
|
|
|
|
10
|
|
|
namespace Railt\Reflection\Definition\Behaviour; |
11
|
|
|
|
12
|
|
|
use Railt\Reflection\Contracts\Definition\Behaviour\ProvidesInheritance; |
13
|
|
|
use Railt\Reflection\Contracts\Definition\TypeDefinition; |
14
|
|
|
|
15
|
|
|
/** |
16
|
|
|
* Trait HasInheritance |
17
|
|
|
*/ |
18
|
|
|
trait HasInheritance |
19
|
|
|
{ |
20
|
|
|
/** |
21
|
|
|
* @var array|string[] |
22
|
|
|
*/ |
23
|
|
|
protected $extends = []; |
24
|
|
|
|
25
|
|
|
/** |
26
|
|
|
* @param string|TypeDefinition $type |
27
|
|
|
* @return TypeDefinition |
28
|
|
|
*/ |
29
|
|
|
abstract protected function fetch($type): TypeDefinition; |
30
|
|
|
|
31
|
|
|
/** |
32
|
|
|
* @return iterable|TypeDefinition[] |
33
|
|
|
*/ |
34
|
8 |
|
public function getParents(): iterable |
35
|
|
|
{ |
36
|
8 |
|
foreach ($this->extends as $parent) { |
37
|
8 |
|
yield $this->fetch($parent); |
38
|
|
|
} |
39
|
8 |
|
} |
40
|
|
|
|
41
|
|
|
/** |
42
|
|
|
* @param string $name |
43
|
|
|
* @return bool |
44
|
|
|
*/ |
45
|
|
|
public function hasParent(string $name): bool |
46
|
|
|
{ |
47
|
|
|
return \in_array($name, $this->extends, true); |
48
|
|
|
} |
49
|
|
|
|
50
|
|
|
/** |
51
|
|
|
* @param string $name |
52
|
|
|
* @return null|TypeDefinition |
53
|
|
|
*/ |
54
|
|
|
public function getParent(string $name): ?TypeDefinition |
55
|
|
|
{ |
56
|
|
|
return \in_array($name, $this->extends, true) ? $this->fetch($name) : null; |
57
|
|
|
} |
58
|
|
|
|
59
|
|
|
/** |
60
|
|
|
* @param TypeDefinition|string ...$definitions |
61
|
|
|
* @return ProvidesInheritance|$this |
62
|
|
|
*/ |
63
|
89 |
|
public function extends(...$definitions): ProvidesInheritance |
64
|
|
|
{ |
65
|
89 |
|
foreach ($definitions as $definition) { |
66
|
89 |
|
$this->extends[] = $this->nameOf($definition); |
|
|
|
|
67
|
|
|
} |
68
|
|
|
|
69
|
89 |
|
return $this; |
70
|
|
|
} |
71
|
|
|
|
72
|
|
|
/** |
73
|
|
|
* @param string|TypeDefinition $type |
74
|
|
|
* @return bool |
75
|
|
|
*/ |
76
|
8 |
|
public function isExtends($type): bool |
77
|
|
|
{ |
78
|
8 |
|
$definition = $this->fetch($type); |
79
|
|
|
|
80
|
8 |
|
foreach ($this->getParents() as $parent) { |
81
|
8 |
|
if ($parent->instanceOf($definition)) { |
82
|
8 |
|
return true; |
83
|
|
|
} |
84
|
|
|
} |
85
|
|
|
|
86
|
8 |
|
return false; |
87
|
|
|
} |
88
|
|
|
} |
89
|
|
|
|
This check looks for methods that are used by a trait but not required by it.
To illustrate, let’s look at the following code example
The trait
Idable
provides a methodequalsId
that in turn relies on the methodgetId()
. If this method does not exist on a class mixing in this trait, the method will fail.Adding the
getId()
as an abstract method to the trait will make sure it is available.