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| 1 | <?php |
| 2 | declare(strict_types=1); |
| 3 | /** |
| 4 | * Pop PHP Framework (https://www.popphp.org/) |
| 5 | * |
| 6 | * @link https://github.com/popphp/popphp-framework |
| 7 | * @author Nick Sagona, III <dev@noladev.com> |
| 8 | * @copyright Copyright (c) 2009-2027 NOLA Interactive, LLC. |
| 9 | * @license https://www.popphp.org/license New BSD License |
| 10 | */ |
| 11 | |
| 12 | /** |
| 13 | * @namespace |
| 14 | */ |
| 15 | namespace Pop\Code\Generator; |
| 16 | |
| 17 | /** |
| 18 | * Function generator class |
| 19 | * |
| 20 | * @category Pop |
| 21 | * @package Pop\Code |
| 22 | * @author Nick Sagona, III <dev@noladev.com> |
| 23 | * @copyright Copyright (c) 2009-2027 NOLA Interactive, LLC. |
| 24 | * @license https://www.popphp.org/license New BSD License |
| 25 | * @version 6.0.0 |
| 26 | */ |
| 27 | class FunctionGenerator extends AbstractGenerator |
| 28 | { |
| 29 | |
| 30 | use Traits\NameTrait, Traits\DocblockTrait, Traits\FunctionTrait, Traits\BodyTrait, Traits\AttributesTrait; |
| 31 | |
| 32 | /** |
| 33 | * Function interface flag |
| 34 | * @var bool |
| 35 | */ |
| 36 | protected bool $closure = false; |
| 37 | |
| 38 | /** |
| 39 | * Function body |
| 40 | * @var ?string |
| 41 | */ |
| 42 | protected ?string $body = null; |
| 43 | |
| 44 | /** |
| 45 | * Function indent |
| 46 | * @var int |
| 47 | */ |
| 48 | protected int $indent = 0; |
| 49 | |
| 50 | /** |
| 51 | * Constructor |
| 52 | * |
| 53 | * Instantiate the function generator object |
| 54 | * |
| 55 | * @param ?string $name |
| 56 | * @param bool $closure |
| 57 | */ |
| 58 | public function __construct(?string $name = null, bool $closure = false) |
| 59 | { |
| 60 | if ($name !== null) { |
| 61 | $this->setName($name); |
| 62 | } |
| 63 | $this->setAsClosure($closure); |
| 64 | } |
| 65 | |
| 66 | /** |
| 67 | * Set the function closure flag |
| 68 | * |
| 69 | * @param bool $closure |
| 70 | * @return FunctionGenerator |
| 71 | */ |
| 72 | public function setAsClosure(bool $closure = false): FunctionGenerator |
| 73 | { |
| 74 | $this->closure = $closure; |
| 75 | return $this; |
| 76 | } |
| 77 | |
| 78 | /** |
| 79 | * Get the function closure flag |
| 80 | * |
| 81 | * @return bool |
| 82 | */ |
| 83 | public function isClosure(): bool |
| 84 | { |
| 85 | return $this->closure; |
| 86 | } |
| 87 | |
| 88 | /** |
| 89 | * Render function |
| 90 | * |
| 91 | * @throws Exception |
| 92 | * @return string |
| 93 | */ |
| 94 | public function render(): string |
| 95 | { |
| 96 | // A closure need not be named -- it's only assigned to a $name variable when one was |
| 97 | // given (e.g. reflecting a real anonymous closure with no name override supplies none). |
| 98 | // A regular (non-closure) function always needs one, since `function (...) {}` alone |
| 99 | // isn't valid as a statement the way `function foo(...) {}` is. |
| 100 | if (($this->name === null) && !$this->closure) { |
| 101 | throw new Exception('Error: The function name has not been set.'); |
| 102 | } |
| 103 | |
| 104 | $args = $this->formatArguments(); |
| 105 | |
| 106 | $this->output = PHP_EOL . (($this->docblock !== null) ? $this->docblock->render() : null); |
| 107 | $this->output .= $this->formatAttributes(); |
| 108 | if ($this->closure) { |
| 109 | $prefix = ($this->name !== null) ? '$' . $this->name . ' = ' : ''; |
| 110 | $this->output .= $this->printIndent() . $prefix . 'function(' . $args . ')'; |
| 111 | } else { |
| 112 | $this->output .= $this->printIndent() . 'function ' . $this->name . '(' . $args . ')'; |
| 113 | } |
| 114 | |
| 115 | if ($this->hasReturnTypes()) { |
| 116 | $this->output .= ': ' . implode('|', $this->returnTypes); |
| 117 | } |
| 118 | |
| 119 | $this->output .= PHP_EOL . $this->printIndent() . '{' . PHP_EOL; |
| 120 | $this->output .= $this->body. PHP_EOL; |
| 121 | $this->output .= $this->printIndent() . '}'; |
| 122 | |
| 123 | if ($this->closure) { |
| 124 | $this->output .= ';'; |
| 125 | } |
| 126 | |
| 127 | $this->output .= PHP_EOL; |
| 128 | |
| 129 | return $this->output; |
| 130 | } |
| 131 | |
| 132 | /** |
| 133 | * Print function |
| 134 | * |
| 135 | * @return string |
| 136 | */ |
| 137 | public function __toString(): string |
| 138 | { |
| 139 | return $this->render(); |
| 140 | } |
| 141 | |
| 142 | } |