More precise implode() return type #3774
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//cc @VincentLanglet since its string accessory business :) |
staabm
commented
Jan 6, 2025
| @@ -80,22 +80,23 @@ private function implode(Type $arrayType, Type $separatorType): Type | |||
| } | |||
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| $accessoryTypes = []; | |||
| $valueTypeAsString = $arrayType->getIterableValueType()->toString(); | |||
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the actual change is here: we use toString as the implode function internally casts everything.
that way the string types detection also works for unions of strings and non-strings (e.g. 2|'a') and so we get more precise results
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mvorisek
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Jan 7, 2025
| @@ -212,7 +212,7 @@ public function sayHello(int $i): void | |||
| // coming from issue #5291 | |||
| $s = array(1, $i); | |||
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| assertType('non-falsy-string', implode("a", $s)); | |||
| assertType('lowercase-string&non-falsy-string', implode("a", $s)); | |||
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Suggested change
| assertType('lowercase-string&non-falsy-string', implode("a", $s)); | |
| assertType('lowercase-string&non-falsy-string', implode("a", $s)); | |
| assertType('uppercase-string&non-falsy-string', implode("A", $s)); |
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