1: <?php
 2: 
 3: /**
 4:  * This file is part of the Nette Framework (https://nette.org)
 5:  * Copyright (c) 2004 David Grudl (https://davidgrudl.com)
 6:  */
 7: 
 8: namespace Nette\PhpGenerator;
 9: 
10: use Nette;
11: 
12: 
13: /**
14:  * Closure.
15:  *
16:  * @property string $body
17:  */
18: class Closure
19: {
20:     use Nette\SmartObject;
21:     use Traits\FunctionLike;
22: 
23:     /** @var Parameter[] */
24:     private $uses = [];
25: 
26: 
27:     /**
28:      * @return static
29:      */
30:     public static function from(\Closure $closure)
31:     {
32:         return (new Factory)->fromFunctionReflection(new \ReflectionFunction($closure));
33:     }
34: 
35: 
36:     /**
37:      * @return string  PHP code
38:      */
39:     public function __toString()
40:     {
41:         $uses = [];
42:         foreach ($this->uses as $param) {
43:             $uses[] = ($param->isReference() ? '&' : '') . '$' . $param->getName();
44:         }
45:         $useStr = strlen($tmp = implode(', ', $uses)) > Helpers::WRAP_LENGTH && count($uses) > 1
46:             ? "\n\t" . implode(",\n\t", $uses) . "\n"
47:             : $tmp;
48: 
49:         return 'function '
50:             . ($this->returnReference ? '&' : '')
51:             . $this->parametersToString()
52:             . ($this->uses ? " use ($useStr)" : '')
53:             . $this->returnTypeToString()
54:             . " {\n" . Nette\Utils\Strings::indent(ltrim(rtrim($this->body) . "\n"), 1) . '}';
55:     }
56: 
57: 
58:     /**
59:      * @param  Parameter[]
60:      * @return static
61:      */
62:     public function setUses(array $uses)
63:     {
64:         foreach ($uses as $use) {
65:             if (!$use instanceof Parameter) {
66:                 throw new Nette\InvalidArgumentException('Argument must be Nette\PhpGenerator\Parameter[].');
67:             }
68:         }
69:         $this->uses = $uses;
70:         return $this;
71:     }
72: 
73: 
74:     /**
75:      * @return array
76:      */
77:     public function getUses()
78:     {
79:         return $this->uses;
80:     }
81: 
82: 
83:     /**
84:      * @return Parameter
85:      */
86:     public function addUse($name)
87:     {
88:         return $this->uses[] = new Parameter($name);
89:     }
90: }
91: