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non-empty-array<mixed> does not accept array with hasOffsetValue #3924

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Merged
merged 10 commits into from
Apr 15, 2025
Merged

non-empty-array<mixed> does not accept array with hasOffsetValue #3924

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56a8799
non-empty-array<mixed> does not except array with hasOffsetValue
staabm Apr 7, 2025
4dc1a7e
Update bug-12847.php
staabm Apr 7, 2025
060bd6f
min php 7.4
staabm Apr 7, 2025
cf4ffd8
more tests
staabm Apr 9, 2025
b418801
Revert "more tests"
staabm Apr 9, 2025
bbcce3f
move logic into HasOffset*
staabm Apr 15, 2025
bf5ba33
Don't use instanceof
staabm Apr 15, 2025
30567c9
add failling test
staabm Apr 15, 2025
29ba078
fix in IntersectionType
staabm Apr 15, 2025
02de658
Discard changes to src/Type/IntersectionType.php
staabm Apr 15, 2025
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3 changes: 3 additions & 0 deletions src/Type/Accessory/HasOffsetType.php
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Original file line number Diff line number Diff line change
Expand Up @@ -111,6 +111,9 @@ public function isSubTypeOf(Type $otherType): IsSuperTypeOfResult

public function isAcceptedBy(Type $acceptingType, bool $strictTypes): AcceptsResult
{
if ($acceptingType->isArray()->yes() && $acceptingType->isIterableAtLeastOnce()->yes()) {
return AcceptsResult::createYes();
}
return $this->isSubTypeOf($acceptingType)->toAcceptsResult();
}

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4 changes: 4 additions & 0 deletions src/Type/Accessory/HasOffsetValueType.php
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Expand Up @@ -122,6 +122,10 @@ public function isSubTypeOf(Type $otherType): IsSuperTypeOfResult

public function isAcceptedBy(Type $acceptingType, bool $strictTypes): AcceptsResult
{
if ($acceptingType->isArray()->yes() && $acceptingType->isIterableAtLeastOnce()->yes()) {
return AcceptsResult::createYes();
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It should check the iterable value type against $this->valueType.

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I can't check the iteratable-value-type and the non-emptiness in a single IF because $acceptingType is invoked once for each element of the intersection.

this means I get the ArrayType which I could check against the value-type, but not against non-emptiness
and on the 2nd call I get the NonEmptyArray type, which I can check only against the non-emptiness, but not the value type

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I will think more about it.. maybe we need a fix directly on IntersectionType then

}

return $this->isSubTypeOf($acceptingType)->toAcceptsResult();
}

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23 changes: 23 additions & 0 deletions tests/PHPStan/Rules/Functions/CallToFunctionParametersRuleTest.php
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Expand Up @@ -2053,4 +2053,27 @@ public function testBug7522(): void
$this->analyse([__DIR__ . '/data/bug-7522.php'], []);
}

public function testBug12847(): void
{
if (PHP_VERSION_ID < 80000) {
$this->markTestSkipped('Test requires PHP 8.0.');
}

$this->checkExplicitMixed = true;
$this->checkImplicitMixed = true;

$this->analyse([__DIR__ . '/data/bug-12847.php'], [
[
'Parameter #1 $array of function Bug12847\doSomething expects non-empty-array<mixed>, mixed given.',
32,
'mixed is empty.',
],
[
'Parameter #1 $array of function Bug12847\doSomething expects non-empty-array<mixed>, mixed given.',
39,
'mixed is empty.',
],
]);
}

}
49 changes: 49 additions & 0 deletions tests/PHPStan/Rules/Functions/data/bug-12847.php
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@@ -0,0 +1,49 @@
<?php declare(strict_types = 1);

namespace Bug12847;

function doBar():void {
/**
* @var array<mixed> $array
*/
$array = [
'abc' => 'def'
];

if (isset($array['def'])) {
doSomething($array);
}
}

function doFoo(array $array):void {
if (isset($array['def'])) {
doSomething($array);
}
}

function doFooBar(array $array):void {
if (array_key_exists('foo', $array) && $array['foo'] === 17) {
doSomething($array);
}
}

function doImplicitMixed($mixed):void {
if (isset($mixed['def'])) {
doSomething($mixed);
}
}

function doExplicitMixed(mixed $mixed): void
{
if (isset($mixed['def'])) {
doSomething($mixed);
}
}

/**
* @param non-empty-array<mixed> $array
*/
function doSomething(array $array): void
{

}
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