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improve typing

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This commit is contained in:
Rowan 2025-10-21 18:30:49 -04:00
parent 7382131674
commit 7e8bdd9ef3
6 changed files with 107 additions and 78 deletions
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21
src/option.js
View file

@ -5,6 +5,9 @@ import { implementor } from './specification/index.js'
import { Alt, Applicative, Chain, Filterable, Functor, Ord, Setoid } from './specification/structures.js'
import { FantasyLand } from './specification/fantasy-land.js'
/**
* @template T
*/
export class Option {
/**
* @template T
@ -74,6 +77,20 @@ export class Option {
static lte(other, self) {
return self.lte(other)
}
/**
* @returns {this is Some<T>}
*/
isSome() {
return this instanceof Some
}
/**
* @returns {this is None<T>}
*/
isNone() {
return this == None || this instanceof _None
}
}
/** @template T */
@ -187,7 +204,7 @@ export class Some extends Option {
map(fn) {
return new Some(fn(this.#value))
}
/**
* @template V
* @param {V} _default
@ -363,7 +380,7 @@ class _None extends Option {
flatten() {
return this
}
/**
* @template V
* @template {Option<T>} R

39
src/result.js
View file

@ -5,6 +5,9 @@ import { FantasyLand } from './specification/fantasy-land.js'
import { UnwrapError } from './error.js'
import { Option, None } from './option.js'
/**
* @template T, E
*/
export class Result {
/**
* @template T
@ -42,9 +45,23 @@ export class Result {
static lte(other, self) {
return self.lte(other)
}
/**
* @returns {this is Ok<T, E>}
*/
isOk() {
return this instanceof Ok
}
/**
* @returns {this is Err<T, E>}
*/
isErr() {
return this instanceof Err
}
}
/** @template T */
/** @template T, E */
export class Ok extends Result {
/** @type T */
#value
@ -56,21 +73,20 @@ export class Ok extends Result {
}
/**
* @returns {bool}
* @returns {this is Ok<T, E>}
*/
isOk() {
return true
}
/**
* @returns {bool}
* @returns {this is Err<T, E>}
*/
isErr() {
return false
}
/**
* @template E
* @template {Result<T, E>} R
* @param {(value: T) => R} fn
* @returns {R}
@ -80,7 +96,7 @@ export class Ok extends Result {
}
/**
* @template V, E
* @template V
* @template {Result<V, E>} R
* @param {(value: T) => V} fn
* @returns {R}
@ -110,7 +126,6 @@ export class Ok extends Result {
}
/**
* @template E
* @param {Result<T, E>} other
* @returns {Result<T, E>}
*/
@ -119,7 +134,6 @@ export class Ok extends Result {
}
/**
* @template E
* @param {Result<T, E>} other
* @returns {Result<T, E>}
*/
@ -128,7 +142,7 @@ export class Ok extends Result {
}
/**
* @template E, F
* @template F
* @param {(error: E) => Result<T, F>} other
* @returns {Result<T, F>}
*/
@ -137,7 +151,6 @@ export class Ok extends Result {
}
/**
* @template E
* @param {Result<T, E>} other
* @returns {bool}
*/
@ -146,7 +159,6 @@ export class Ok extends Result {
}
/**
* @template E
* @param {Result<T, E>} other
* @returns {bool}
*/
@ -165,7 +177,6 @@ export class Ok extends Result {
}
/**
* @template E
* @template {Result<T, E>} R
* @returns {R}
*/
@ -238,7 +249,7 @@ export class Ok extends Result {
}
}
/** @template E */
/** @template T, E */
export class Err extends Result {
/** @type E */
#error
@ -250,14 +261,14 @@ export class Err extends Result {
}
/**
* @returns {bool}
* @returns {this is Ok<T, E>}
*/
isOk() {
return false
}
/**
* @returns {bool}
* @returns {this is Err<T, E>}
*/
isErr() {
return true

34
types/option.d.ts vendored
View file

@ -1,10 +1,13 @@
export class Option {
/**
* @template T
*/
export class Option<T> {
/**
* @template T
* @param {T} value
* @returns {Some<T>}
*/
static some<T>(value: T): Some<T>;
static some<T_1>(value: T_1): Some<T_1>;
/** @returns {None} */
static none(): _None;
/**
@ -44,19 +47,19 @@ export class Option {
* @returns {Option<T>}
*/
static lte(other: Option<T>, self: Option<T>): Option<T>;
}
/** @template T */
export class Some<T> extends Option {
/** @param {T} value */
constructor(value: T);
/**
* @returns {this is Some}
* @returns {this is Some<T>}
*/
isSome(): this is Some<any>;
isSome(): this is Some<T>;
/**
* @returns {this is _None}
* @returns {this is None<T>}
*/
isNone(): this is _None;
}
/** @template T */
export class Some<T> extends Option<any> {
/** @param {T} value */
constructor(value: T);
/**
* @param {(value: T) => Option<T>} fn
* @returns {Option<T>}
@ -160,15 +163,8 @@ export class Some<T> extends Option {
#private;
}
export const None: _None;
declare class _None extends Option {
/**
* @returns {this is Some}
*/
isSome(): this is Some<any>;
/**
* @returns {this is _None}
*/
isNone(): this is _None;
declare class _None extends Option<any> {
constructor();
/**
* @template T
* @param {Option<T>} _other

2
types/option.d.ts.map
View file

@ -1 +1 @@
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{"version":3,"file":"option.d.ts","sourceRoot":"","sources":["../src/option.js"],"names":[],"mappings":"AAOA;;GAEG;AACH,oBAFa,CAAC;IAGZ;;;;OAIG;IACH,wBAHW,GAAC,GACC,IAAI,CAAC,GAAC,CAAC,CAInB;IAED,sBAAsB;IACtB,qBAEC;IAED;;;;OAIG;IACH,iBAJW,CAAC,KAAK,EAAE,CAAC,KAAK,MAAM,CAAC,CAAC,CAAC,QACvB,MAAM,CAAC,CAAC,CAAC,GACP,MAAM,CAAC,CAAC,CAAC,CAIrB;IAED;;;;OAIG;IACH,oCAHW,MAAM,CAAC,CAAC,CAAC,GACP,MAAM,CAAC,CAAC,CAAC,CAIrB;IAED;;;;;OAKG;IACH,WALa,CAAC,MACH,CAAC,KAAK,EAAE,CAAC,KAAK,CAAC,QACf,MAAM,CAAC,CAAC,CAAC,GACP,MAAM,CAAC,CAAC,CAAC,CAIrB;IAED;;;;OAIG;IACH,kBAJW,MAAM,CAAC,CAAC,CAAC,QACT,MAAM,CAAC,CAAC,CAAC,GACP,MAAM,CAAC,CAAC,CAAC,CAIrB;IAED;;;;OAIG;IACH,qBAJW,MAAM,CAAC,CAAC,CAAC,QACT,MAAM,CAAC,CAAC,CAAC,GACP,MAAM,CAAC,CAAC,CAAC,CAIrB;IAED;;;;OAIG;IACH,kBAJW,MAAM,CAAC,CAAC,CAAC,QACT,MAAM,CAAC,CAAC,CAAC,GACP,MAAM,CAAC,CAAC,CAAC,CAIrB;IAED;;OAEG;IACH,UAFa,QAAQ,IAAI,CAAC,CAAC,CAAC,CAI3B;IAED;;OAEG;IACH,UAFa,aAAe,CAI3B;CACF;AAED,kBAAkB;AAClB,kBADc,CAAC;IAKb,uBAAuB;IACvB,mBADY,CAAC,EAIZ;IAgBD;;;OAGG;IACH,YAHW,CAAC,KAAK,EAAE,CAAC,KAAK,MAAM,CAAC,CAAC,CAAC,GACrB,MAAM,CAAC,CAAC,CAAC,CAIrB;IAED;;;OAGG;IACH,WAHW,MAAM,CAAC,CAAC,CAAC,GACP,MAAM,CAAC,CAAC,CAAC,CAIrB;IAED;;;OAGG;IACH,iBAFa,MAAM,CAAC,CAAC,CAAC,CAIrB;IAED;;;OAGG;IACH,kBAFa,MAAM,CAAC,CAAC,CAAC,CAIrB;IAED;;;;OAIG;IACH,uBAHW,CAAC,KAAK,EAAE,GAAC,KAAK,IAAI,GAChB,MAAM,CAAC,GAAC,CAAC,CAIrB;IAED;;;OAGG;IACH,cAHW,MAAM,CAAC,CAAC,CAAC,GACP,IAAI,CAIhB;IAED;;;OAGG;IACH,WAHW,MAAM,CAAC,CAAC,CAAC,GACP,IAAI,CAIhB;IAED;;;;;OAKG;IACH,OALc,CAAC,eACJ,CAAC,GAAG,EAAE,CAAC,EAAE,KAAK,EAAE,CAAC,KAAK,CAAC,QACvB,CAAC,GACC,CAAC,CAIb;IAED;;OAEG;IACH,WAFa,MAAM,CAAC,CAAC,CAAC,CAQrB;IAED;;;;OAIG;IACH,IAJa,CAAC,MACH,CAAC,KAAK,EAAE,CAAC,KAAK,CAAC,GACb,MAAM,CAAC,CAAC,CAAC,CAIrB;IAED;;;;;OAKG;IACH,MALa,CAAC,YACH,CAAC,MACD,CAAC,KAAK,EAAE,CAAC,KAAK,CAAC,GACb,CAAC,CAIb;IAED;;;;;OAKG;IACH,UALa,CAAC,cACH,MAAM,CAAC,MACP,CAAC,KAAK,EAAE,CAAC,KAAK,CAAC,GACb,CAAC,CAIb;IAED;;;;OAIG;IACH,KAJa,CAAC,QACH,CAAC,GACC,MAAM,CAAC,CAAC,EAAE,CAAC,CAAC,CAIxB;IAED;;;;;OAKG;IACH,SALa,CAAC,EACS,CAAC,SAAX,MAAO,CAAE,QACX,CAAC,GACC,MAAM,CAAC,CAAC,EAAE,CAAC,CAAC,CAIxB;IAED;;;OAGG;IACH,YAHW,CAAC,KAAK,EAAE,CAAC,KAAK,IAAI,GAChB,IAAI,CAKhB;IAED;;;OAGG;IACH,UAHa,CAAC,CAKb;IAED;;;OAGG;IACH,iBAHW,CAAC,GACC,CAAC,CAIb;IAED;;;OAGG;IACH,kBAHW,MAAM,CAAC,GACL,CAAC,CAIb;;CAMF;AAgMD,yBAA+B;AA9L/B;;IAeE;;;;OAIG;IACH,IAJa,CAAC,UACH,MAAM,CAAC,CAAC,CAAC,GACP,MAAM,CAAC,CAAC,CAAC,CAIrB;IAED;;;;;OAKG;IACH,QALa,CAAC,EACW,CAAC,SAAZ,MAAM,CAAC,CAAC,CAAE,aAEX,CAAC,CAIb;IAED;;;;OAIG;IACH,GAJa,CAAC,SACH,MAAM,CAAC,CAAC,CAAC,GACP,MAAM,CAAC,CAAC,CAAC,CAIrB;IAED;;;;OAIG;IACH,OAJa,CAAC,YAED,MAAM,CAAC,CAAC,CAAC,CAIrB;IAED;;;;OAIG;IACH,OAJa,CAAC,cACH,CAAC,KAAK,EAAE,CAAC,KAAK,IAAI,GAChB,MAAM,CAAC,CAAC,CAAC,CAIrB;IAED;;;;OAIG;IACH,OAJa,CAAC,SACH,MAAM,CAAC,CAAC,CAAC,GACP,IAAI,CAIhB;IAED;;;;OAIG;IACH,IAJa,CAAC,UACH,MAAM,CAAC,CAAC,CAAC,GACP,IAAI,CAIhB;IAED;;;;;OAKG;IACH,OALa,CAAC,EAAG,CAAC,gBACP,CAAC,GAAG,EAAE,CAAC,EAAE,KAAK,EAAE,CAAC,KAAK,CAAC,QACvB,CAAC,GACC,CAAC,CAIb;IAED;;;;OAIG;IACH,QAJa,CAAC,EACW,CAAC,SAAZ,MAAM,CAAC,CAAC,CAAE,KACX,CAAC,CAIb;IAED;;;;;OAKG;IACH,IALa,CAAC,EACW,CAAC,SAAZ,MAAM,CAAC,CAAC,CAAE,aAEX,CAAC,CAIb;IAED;;;;;OAKG;IACH,MALa,CAAC,gBACH,CAAC,OACD,CAAC,KAAK,EAAE,CAAC,KAAK,CAAC,GACb,CAAC,CAIb;IAED;;;;;OAKG;IACH,UALa,CAAC,aACH,MAAM,CAAC,OACP,CAAC,KAAK,EAAE,CAAC,KAAK,CAAC,GACb,CAAC,CAIb;IAED;;;;;OAKG;IACH,KALa,CAAC,EAAE,CAAC,EACW,CAAC,SAAf,MAAM,CAAC,CAAC,EAAE,CAAC,CAAE,OAChB,CAAC,GACC,CAAC,CAIb;IAED;;;;;;OAMG;IACH,SANa,CAAC,EAAE,CAAC,EACW,CAAC,SAAf,MAAM,CAAC,CAAC,EAAE,CAAC,CAAE,EACJ,CAAC,SAAX,MAAO,CAAE,OACX,CAAC,GACC,CAAC,CAIb;IAED;;;;OAIG;IACH,QAJa,CAAC,OACH,CAAC,KAAK,EAAE,CAAC,KAAK,IAAI,GAChB,IAAI,CAIhB;IAED;;;;OAIG;IACH,OAJa,CAAC,KACD,CAAC,CAKb;IAED;;;OAGG;IACH,gBAHW,CAAC,GACC,CAAC,CAIb;IAED;;;;OAIG;IACH,aAJa,CAAC,MACH,MAAM,CAAC,GACL,CAAC,CAIb;CAMF;uBAvdsB,aAAa"}

87
types/result.d.ts vendored
View file

@ -1,46 +1,56 @@
export class Result {
/**
* @template T, E
*/
export class Result<T, E> {
/**
* @template T
* @param {T} value
*/
static ok<T>(value: T): Ok<T>;
static ok<T_1>(value: T_1): Ok<T_1, any>;
/**
* @template E
* @param {E} error
*/
static err<E>(error: E): Err<any>;
static err<E_1>(error: E_1): Err<any, any>;
static chain(fn: any, self: any): any;
static map(fn: any, self: any): any;
static alt(other: any, self: any): any;
static equals(other: any, self: any): any;
static lte(other: any, self: any): any;
/**
* @returns {this is Ok<T, E>}
*/
isOk(): this is Ok<T, E>;
/**
* @returns {this is Err<T, E>}
*/
isErr(): this is Err<T, E>;
}
/** @template T */
export class Ok<T> extends Result {
/** @template T, E */
export class Ok<T, E> extends Result<any, any> {
/** @param {T} value */
constructor(value: T);
/**
* @returns {bool}
* @returns {this is Ok<T, E>}
*/
isOk(): bool;
isOk(): this is Ok<T, E>;
/**
* @returns {bool}
* @returns {this is Err<T, E>}
*/
isErr(): bool;
isErr(): this is Err<T, E>;
/**
* @template E
* @template {Result<T, E>} R
* @param {(value: T) => R} fn
* @returns {R}
*/
andThen<E, R extends Result<T, E>>(fn: (value: T) => R): R;
andThen<R extends Result<T, E>>(fn: (value: T) => R): R;
/**
* @template V, E
* @template V
* @template {Result<V, E>} R
* @param {(value: T) => V} fn
* @returns {R}
*/
map<V, E, R extends Result<V, E>>(fn: (value: T) => V): R;
map<V, R extends Result<V, E>>(fn: (value: T) => V): R;
/**
* @template V
* @param {V} _defaultValue
@ -49,35 +59,31 @@ export class Ok<T> extends Result {
*/
mapOr<V>(_defaultValue: V, fn: (value: T) => V): V;
/**
* @template E
* @param {Result<T, E>} other
* @returns {Result<T, E>}
*/
and<E>(other: Result<T, E>): Result<T, E>;
and(other: Result<T, E>): Result<T, E>;
/**
* @template E
* @param {Result<T, E>} other
* @returns {Result<T, E>}
*/
or<E>(_other: any): Result<T, E>;
or(_other: any): Result<T, E>;
/**
* @template E, F
* @template F
* @param {(error: E) => Result<T, F>} other
* @returns {Result<T, F>}
*/
orElse<E, F>(_fn: any): Result<T, F>;
orElse<F>(_fn: any): Result<T, F>;
/**
* @template E
* @param {Result<T, E>} other
* @returns {bool}
*/
equals<E>(other: Result<T, E>): bool;
equals(other: Result<T, E>): bool;
/**
* @template E
* @param {Result<T, E>} other
* @returns {bool}
*/
lte<E>(other: Result<T, E>): bool;
lte(other: Result<T, E>): bool;
/**
* @template [V=T]
* @param {(acc: V, value: T) => V} reducer
@ -86,11 +92,10 @@ export class Ok<T> extends Result {
*/
reduce<V = T>(reducer: (acc: V, value: T) => V, init: V): V;
/**
* @template E
* @template {Result<T, E>} R
* @returns {R}
*/
flatten<E, R extends Result<T, E>>(): R;
flatten<R extends Result<T, E>>(): R;
/**
* @returns {Option<T>}
*/
@ -126,25 +131,25 @@ export class Ok<T> extends Result {
unwrapOrElse(_fn: () => T): T;
#private;
}
/** @template E */
export class Err<E> extends Result {
/** @template T, E */
export class Err<T, E> extends Result<any, any> {
/** @param {E} value */
constructor(error: any);
/**
* @returns {bool}
* @returns {this is Ok<T, E>}
*/
isOk(): bool;
isOk(): this is Ok<T, E>;
/**
* @returns {bool}
* @returns {this is Err<T, E>}
*/
isErr(): bool;
isErr(): this is Err<T, E>;
/**
* @template T
* @template {Result<T, E>} R
* @param {(value: T) => R} fn
* @returns {R}
*/
andThen<T, R extends Result<T, E>>(_fn: any): R;
andThen<T_1, R extends Result<T, E>>(_fn: any): R;
/**
* @template V, E
* @template {Result<V, E>} R
@ -171,31 +176,31 @@ export class Err<E> extends Result {
* @param {Result<T, E>} _other
* @returns {Result<T, E>}
*/
and<T>(_other: Result<T, E>): Result<T, E>;
and<T_1>(_other: Result<T_1, E>): Result<T_1, E>;
/**
* @template T
* @param {Result<T, E>} other
* @returns {Result<T, E>}
*/
or<T>(other: Result<T, E>): Result<T, E>;
or<T_1>(other: Result<T_1, E>): Result<T_1, E>;
/**
* @template T, F
* @param {(error: E) => Result<T, F>} other
* @returns {Result<T, F>}
*/
orElse<T, F>(fn: any): Result<T, F>;
orElse<T_1, F>(fn: any): Result<T_1, F>;
/**
* @template T
* @param {Result<T, E>} other
* @returns {bool}
*/
equals<T>(other: Result<T, E>): bool;
equals<T_1>(other: Result<T_1, E>): bool;
/**
* @template T
* @param {Result<T, E>} other
* @returns {bool}
*/
lte<T>(other: Result<T, E>): bool;
lte<T_1>(other: Result<T_1, E>): bool;
/**
* @template [V=T]
* @param {(acc: V, value: T) => V} _reducer
@ -208,7 +213,7 @@ export class Err<E> extends Result {
* @template {Result<T, E>} R
* @returns {R}
*/
flatten<T, R extends Result<T, E>>(): R;
flatten<T_1, R extends Result<T, E>>(): R;
/**
* @returns {Option<T>}
*/
@ -222,13 +227,13 @@ export class Err<E> extends Result {
* @param {(value: T) => void} _fn
* @returns {this}
*/
inspect<T>(_fn: (value: T) => void): this;
inspect<T_1>(_fn: (value: T_1) => void): this;
/**
* @template T
* @returns {T}
* @throws {UnwrapError}
*/
unwrap<T>(): T;
unwrap<T_1>(): T_1;
/**
* @returns {E}
* @throws {UnwrapError}
@ -244,7 +249,7 @@ export class Err<E> extends Result {
* @param {() => T} fn
* @returns {T}
*/
unwrapOrElse<T>(fn: () => T): T;
unwrapOrElse<T_1>(fn: () => T_1): T_1;
#private;
}
import { Option } from './option.js';

2
types/result.d.ts.map
View file

@ -1 +1 @@
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