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False positive with when using in_array with literals (or constants) #668
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Original file line number | Diff line number | Diff line change |
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@@ -0,0 +1,18 @@ | ||
<?php | ||
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namespace Bug5354; | ||
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use function PHPStan\Testing\assertType; | ||
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/** | ||
* @param mixed[] $foo | ||
*/ | ||
function sayHello(array $foo): void | ||
{ | ||
$a = []; | ||
foreach ($foo as $e) { | ||
$a[] = rand(5, 15) > 10 ? 0 : 1; | ||
} | ||
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assertType('bool', \in_array(0, $a, true)); | ||
} |
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Original file line number | Diff line number | Diff line change |
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@@ -0,0 +1,12 @@ | ||
<?php | ||
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namespace Bug5496; | ||
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use function PHPStan\Testing\assertType; | ||
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function doFoo() { | ||
/** @var array<string, 'auto'|'copy'> $propagation */ | ||
$propagation = []; | ||
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assertType('bool', \in_array('auto', $propagation, true)); | ||
} |
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I tried different approaches on how to fix the added failling tests.
no matter which one I implement, some tests start failling.
The PR as is fixed the newly added cases but regresses existing tests.
I need to sleep over it. any hints welcome
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Yes,
in_array
is a mad beast. It might need a complete rethinking of this approach.This is also an opportunity to fix https://github.com/phpstan/phpstan/issues/5355 - it means that these conditions should not be in ImpossibleCheckTypeHelper, but in InArrayFunctionTypeSpecifyingExtension.