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| 1 | +<?php |
| 2 | + |
| 3 | +namespace TaggedUnions; |
| 4 | + |
| 5 | +use function PHPStan\Testing\assertType; |
| 6 | + |
| 7 | +class Foo |
| 8 | +{ |
| 9 | + |
| 10 | + /** @param array{A: int}|array{A: string} $foo */ |
| 11 | + public function doFoo(array $foo) |
| 12 | + { |
| 13 | + assertType('array{A: int}|array{A: string}', $foo); |
| 14 | + if (is_int($foo['A'])) { |
| 15 | + assertType("array{A: int}", $foo); |
| 16 | + $foo['B'] = 'yo'; |
| 17 | + assertType("array{A: int, B: 'yo'}", $foo); |
| 18 | + } else { |
| 19 | + assertType('array{A: string}', $foo); |
| 20 | + } |
| 21 | + |
| 22 | + assertType("array{A: int, B: 'yo'}|array{A: string}", $foo); |
| 23 | + } |
| 24 | + |
| 25 | + /** @param array{A: int, B: 1}|array{A: string, B: 2} $foo */ |
| 26 | + public function doFoo2(array $foo) |
| 27 | + { |
| 28 | + assertType('array{A: int, B: 1}|array{A: string, B: 2}', $foo); |
| 29 | + if (is_int($foo['A'])) { |
| 30 | + assertType("array{A: int, B: 1}", $foo); |
| 31 | + } else { |
| 32 | + assertType("array{A: string, B: 2}", $foo); |
| 33 | + } |
| 34 | + |
| 35 | + assertType('array{A: int, B: 1}|array{A: string, B: 2}', $foo); |
| 36 | + } |
| 37 | + |
| 38 | + /** @param array{A: int, B: 1}|array{A: string, C: 1} $foo */ |
| 39 | + public function doFoo3(array $foo) |
| 40 | + { |
| 41 | + assertType('array{A: int, B: 1}|array{A: string, C: 1}', $foo); |
| 42 | + if (is_int($foo['A'])) { |
| 43 | + assertType("array{A: int, B: 1}", $foo); |
| 44 | + } else { |
| 45 | + assertType("array{A: string, C: 1}", $foo); |
| 46 | + } |
| 47 | + |
| 48 | + assertType('array{A: int, B: 1}|array{A: string, C: 1}', $foo); |
| 49 | + } |
| 50 | + |
| 51 | + /** @param array{A: int, B: 1}|array{A: string, C: 1} $foo */ |
| 52 | + public function doFoo4(array $foo) |
| 53 | + { |
| 54 | + assertType('array{A: int, B: 1}|array{A: string, C: 1}', $foo); |
| 55 | + if (isset($foo['C'])) { |
| 56 | + assertType("array{A: string, C: 1}", $foo); |
| 57 | + } else { |
| 58 | + assertType("array{A: int, B: 1}|array{A: string, C: 1}", $foo); // could be array{A: int, B: 1} |
| 59 | + } |
| 60 | + |
| 61 | + assertType('array{A: int, B: 1}|array{A: string, C: 1}', $foo); |
| 62 | + } |
| 63 | + |
| 64 | + /** |
| 65 | + * @param array{A: int}|array{A: int|string} $foo |
| 66 | + * @return void |
| 67 | + */ |
| 68 | + public function doBar(array $foo) |
| 69 | + { |
| 70 | + assertType('array{A: int|string}', $foo); |
| 71 | + } |
| 72 | + |
| 73 | +} |
| 74 | + |
| 75 | +/** |
| 76 | + * @phpstan-type Topping string |
| 77 | + * @phpstan-type Salsa string |
| 78 | + * |
| 79 | + * @phpstan-type Pizza array{type: 'pizza', toppings: Topping[]} |
| 80 | + * @phpstan-type Pasta array{type: 'pasta', salsa: Salsa} |
| 81 | + * @phpstan-type Meal Pizza|Pasta |
| 82 | + */ |
| 83 | +class Test |
| 84 | +{ |
| 85 | + /** |
| 86 | + * @param Meal $meal |
| 87 | + */ |
| 88 | + function test($meal): void { |
| 89 | + assertType("array{type: 'pasta', salsa: string}|array{type: 'pizza', toppings: array<string>}", $meal); |
| 90 | + if ($meal['type'] === 'pizza') { |
| 91 | + assertType("array{type: 'pizza', toppings: array<string>}", $meal); |
| 92 | + } else { |
| 93 | + assertType("array{type: 'pasta', salsa: string}", $meal); |
| 94 | + } |
| 95 | + assertType("array{type: 'pasta', salsa: string}|array{type: 'pizza', toppings: array<string>}", $meal); |
| 96 | + } |
| 97 | +} |
| 98 | + |
| 99 | +class HelloWorld |
| 100 | +{ |
| 101 | + /** |
| 102 | + * @return array{updated: true, id: int}|array{updated: false, id: null} |
| 103 | + */ |
| 104 | + public function sayHello(): array |
| 105 | + { |
| 106 | + return ['updated' => false, 'id' => 5]; |
| 107 | + } |
| 108 | + |
| 109 | + public function doFoo() |
| 110 | + { |
| 111 | + $x = $this->sayHello(); |
| 112 | + assertType("array{updated: false, id: null}|array{updated: true, id: int}", $x); |
| 113 | + if ($x['updated']) { |
| 114 | + assertType('array{updated: true, id: int}', $x); |
| 115 | + } |
| 116 | + } |
| 117 | +} |
| 118 | + |
| 119 | +/** |
| 120 | + * @psalm-type A array{tag: 'A', foo: bool} |
| 121 | + * @psalm-type B array{tag: 'B'} |
| 122 | + */ |
| 123 | +class X { |
| 124 | + /** @psalm-param A|B $arr */ |
| 125 | + public function ooo(array $arr): void { |
| 126 | + assertType("array{tag: 'A', foo: bool}|array{tag: 'B'}", $arr); |
| 127 | + if ($arr['tag'] === 'A') { |
| 128 | + assertType("array{tag: 'A', foo: bool}", $arr); |
| 129 | + } else { |
| 130 | + assertType("array{tag: 'B'}", $arr); |
| 131 | + } |
| 132 | + assertType("array{tag: 'A', foo: bool}|array{tag: 'B'}", $arr); |
| 133 | + } |
| 134 | +} |
| 135 | + |
| 136 | +class TipsFromArnaud |
| 137 | +{ |
| 138 | + |
| 139 | + // https://github.com/phpstan/phpstan/issues/7666#issuecomment-1191563801 |
| 140 | + |
| 141 | + /** |
| 142 | + * @param array{a: int}|array{a: int} $a |
| 143 | + */ |
| 144 | + public function doFoo(array $a): void |
| 145 | + { |
| 146 | + assertType('array{a: int}', $a); |
| 147 | + } |
| 148 | + |
| 149 | + /** |
| 150 | + * @param array{a: int}|array{a: string} $a |
| 151 | + */ |
| 152 | + public function doFoo2(array $a): void |
| 153 | + { |
| 154 | + // could be: array{a: int|string} |
| 155 | + assertType('array{a: int}|array{a: string}', $a); |
| 156 | + } |
| 157 | + |
| 158 | + /** |
| 159 | + * @param array{a: int, b: int}|array{a: string, b: string} $a |
| 160 | + */ |
| 161 | + public function doFoo3(array $a): void |
| 162 | + { |
| 163 | + assertType('array{a: int, b: int}|array{a: string, b: string}', $a); |
| 164 | + } |
| 165 | + |
| 166 | + /** |
| 167 | + * @param array{a: int, b: string}|array{a: string, b:string} $a |
| 168 | + */ |
| 169 | + public function doFoo4(array $a): void |
| 170 | + { |
| 171 | + // could be: array{a: int|string, b: string} |
| 172 | + assertType('array{a: int, b: string}|array{a: string, b: string}', $a); |
| 173 | + } |
| 174 | + |
| 175 | + /** |
| 176 | + * @param array{a: int, b: string, c: string}|array{a: string, b: string, c: string} $a |
| 177 | + */ |
| 178 | + public function doFoo5(array $a): void |
| 179 | + { |
| 180 | + // could be: array{a: int|string, b: string, c: string} |
| 181 | + assertType('array{a: int, b: string, c: string}|array{a: string, b: string, c: string}', $a); |
| 182 | + } |
| 183 | + |
| 184 | +} |
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