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Fix count() regression #3889

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Merged
merged 3 commits into from
Mar 20, 2025
Merged

Fix count() regression #3889

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ce026a8
Fix count() regression
staabm Mar 20, 2025
c7174a8
zero or more
staabm Mar 20, 2025
f2acadd
another test
staabm Mar 20, 2025
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2 changes: 2 additions & 0 deletions src/Analyser/TypeSpecifier.php
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Original file line number Diff line number Diff line change
Expand Up @@ -1063,10 +1063,12 @@ private function specifyTypesForCountFuncCall(

$isConstantArray = $type->isConstantArray();
$isList = $type->isList();
$zeroOrMore = IntegerRangeType::fromInterval(0, null);
if (
!$isNormalCount->yes()
|| (!$isConstantArray->yes() && !$isList->yes())
|| $type->isIterableAtLeastOnce()->no() // array{} cannot be used for further narrowing
|| !$zeroOrMore->isSuperTypeOf($sizeType)->yes()
) {
return null;
}
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45 changes: 44 additions & 1 deletion tests/PHPStan/Analyser/nsrt/list-count.php
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Expand Up @@ -369,7 +369,7 @@ protected function testOptionalKeysInUnionListWithIntRange($row, $twoOrThree, $t
if (count($row) >= $maxThree) {
assertType('array{string}|list{0: int, 1?: string|null, 2?: int|null, 3?: float|null}', $row);
} else {
assertType('list{0: int, 1?: string|null, 2?: int|null, 3?: float|null}', $row);
assertType('array{string}|list{0: int, 1?: string|null, 2?: int|null, 3?: float|null}', $row);
}
}

Expand All @@ -386,3 +386,46 @@ protected function testOptionalKeysInUnionArrayWithIntRange($row, $twoOrThree):
}
}
}

class FooBug
{
public int $totalExpectedRows = 0;

/** @var list<\stdClass> */
public array $importedDaySummaryRows = [];

public function sayHello(): void
{
assertType('int', $this->totalExpectedRows);
assertType('list<stdClass>', $this->importedDaySummaryRows);
if ($this->totalExpectedRows !== count($this->importedDaySummaryRows)) {
assertType('int', $this->totalExpectedRows);
assertType('list<stdClass>', $this->importedDaySummaryRows);
}
assertType('int', $this->totalExpectedRows);
assertType('list<stdClass>', $this->importedDaySummaryRows);
}
}

class FooBugPositiveInt
{
/**
* @var positive-int
*/
public int $totalExpectedRows = 1;

/** @var list<\stdClass> */
public array $importedDaySummaryRows = [];

public function sayHello(): void
{
assertType('int<1, max>', $this->totalExpectedRows);
assertType('list<stdClass>', $this->importedDaySummaryRows);
if ($this->totalExpectedRows !== count($this->importedDaySummaryRows)) {
assertType('int<1, max>', $this->totalExpectedRows);
assertType('list<stdClass>', $this->importedDaySummaryRows);
}
assertType('int<1, max>', $this->totalExpectedRows);
assertType('list<stdClass>', $this->importedDaySummaryRows);
}
}
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