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ImpureMethodCall false-positive for Collection::toArray() #85

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fluffycondor opened this issue Dec 18, 2020 · 1 comment

Contributor

fluffycondor commented Dec 18, 2020 •

edited

class Test {
    
    private Collection $collection;
    
    /**
     * @psalm-mutation-free
     */
    public function test(): array
    {
        return $this->collection->toArray();
    }
}

ImpureMethodCall: Cannot call an possibly-mutating method Doctrine\Common\Collections\Collection::toArray from a mutation-free context

doctrine/orm 2.7.4
weirdan/doctrine-psalm-plugin 0.11.3
vimeo/psalm 3.18.2

Member

weirdan commented Dec 18, 2020

Is it implied to be mutation-free? I'd suggest to ask doctrine/collection devs (they are not very responsive though).

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