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refactor: change onType to match and take only one pattern and result (#22)
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Pursuant to #12. Besides changing the name of onType to match, and only allowing one pattern and result in `match()`,
this PR also arranges that in place of an onType with lots of alternating PATTERN, VALUE, PATTERN, VALUE arguments, one now exports an _array_ of `match(PATTERN, VALUE)` items.

Doesn't quite fully resolve #12, because there is still the question of whether `match(...)` can be left out for a behavior that literally matches anything (current behavior), or whether `match(Passthru, behavior)` should be required for such cases.

Reviewed-on: #22
Co-authored-by: Glen Whitney <glen@studioinfinity.org>
Co-committed-by: Glen Whitney <glen@studioinfinity.org>
This commit is contained in:
Glen Whitney 2025-04-22 05:01:21 +00:00 • committed by Glen Whitney
parent 491e207fad
commit 236f46c0c0
22 changed files with 147 additions and 135 deletions
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16
src/boolean/type.js
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@ -1,14 +1,14 @@
import {BooleanT} from './BooleanT.js'
import {onType} from '#core/helpers.js'
import {match} from '#core/helpers.js'
import {Returns, Type, TypeOfTypes, Undefined} from '#core/Type.js'
import {NumberT} from '#number/NumberT.js'
const bool = f => Returns(BooleanT, f)
export const boolean = onType(
BooleanT, bool(p => p),
NumberT, bool(a => !!a),
TypeOfTypes, bool(() => true),
Undefined, bool(() => false),
[], bool(() => false)
)
export const boolean = [
match(BooleanT, bool(p => p)),
match(NumberT, bool(a => !!a)),
match(TypeOfTypes, bool(() => true)),
match(Undefined, bool(() => false)),
match([], bool(() => false))
]