Prevent unnecessary work in NodeScopeResolver->processAssignVar()#4705
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ondrejmirtes merged 1 commit intophpstan:2.1.xfrom Jan 3, 2026
Merged
Prevent unnecessary work in NodeScopeResolver->processAssignVar()#4705ondrejmirtes merged 1 commit intophpstan:2.1.xfrom
ondrejmirtes merged 1 commit intophpstan:2.1.xfrom
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staabm
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Jan 3, 2026
| $conditionalExpressions = $this->processSureTypesForConditionalExpressionsAfterAssign($scope, $var->name, $conditionalExpressions, $falseySpecifiedTypes, $falseyType); | ||
| $conditionalExpressions = $this->processSureNotTypesForConditionalExpressionsAfterAssign($scope, $var->name, $conditionalExpressions, $falseySpecifiedTypes, $falseyType); | ||
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| if ($truthyType !== $type) { |
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when $truthyType = TypeCombinator::removeFalsey($type); returns $truthyType === $type, this means TypeCombinator::intersect($type, StaticTypeFactory::falsey()) will always be a NeverType.
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blackfire reports 10.000 less invocations of TypeCombinator::intersect with this PR in comparison to 2.1.x@c53546e53a on bin/phpstan analyse src/Analyser/ src/Rules/ -v --debug
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Very very nice! Looking forward to what you find next :) |
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prevents unnecessary work when e.g. assigning variables to non-falsy values.
to my suprise this hardly has an influence on performance, even though I can see
if ($truthyType !== $type) {is not alwaystrue.