Add support for Psl\Type\nullish() in shape types#31
Merged
ondrejmirtes merged 3 commits intophp-standard-library:2.0.xfrom Mar 17, 2026
Merged
Add support for Psl\Type\nullish() in shape types#31ondrejmirtes merged 3 commits intophp-standard-library:2.0.xfrom
ondrejmirtes merged 3 commits intophp-standard-library:2.0.xfrom
Conversation
Nullish wraps a type as T|null while keeping the key required, unlike optional() which makes the key absent. Supports both standalone nullish(T) and combined optional(nullish(T)).
veewee
commented
Mar 16, 2026
- Use string literal instead of NullishType::class to avoid class-not-found errors on PSL versions without NullishType - Move nullish tests to separate fixtures, gated by class_exists() - Add PHP 8.2, 8.3, 8.4, 8.5 to CI matrix
- Restore NullishType::class instead of string literal - Add baseline ignores for older PSL versions without NullishType - Fix CS: add use statements for NullishType and class_exists in test
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Thank you. |
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Summary
Psl\Type\nullish()support for shape type inference, wherenullish(T)produces a required key with typeT|nulloptional(nullish(T))producing an optional key with typeT|nullNullishTypeandnullish()function, mirroring the existingOptionalType/optional()patternAligns with azjezz/psl#618, mago#1391, and psalm-plugin#18.
Test plan
nullish(string())in shape →array{bio: string|null}(required, nullable)optional(nullish(string()))in shape →array{bio?: string|null}(optional, nullable)