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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,139 @@ | ||
| //// [structuralTagTypes.ts] | ||
| export type Downcased = string & tag { downcased: void; }; | ||
| export type Analyzed<T> = T & tag { analyzed: void; }; | ||
| export type Paired = { | ||
| x: number & tag {x: number;}; | ||
| y: number & tag {y: number;}; | ||
| }; | ||
|
|
||
| export function downcase(x: string): Downcased { | ||
| return x.toLocaleLowerCase() as Downcased; | ||
| } | ||
|
|
||
| export function downcaseLit<T extends string>(x: T): T & Downcased { | ||
| return x.toLocaleLowerCase() as T & Downcased; | ||
| } | ||
|
|
||
| export function isDowncase(x: string): x is Downcased { | ||
| return null as any; | ||
| } | ||
|
|
||
| export function analyze<T>(x: T): Analyzed<T> { | ||
| return x as Analyzed<T>; | ||
| } | ||
|
|
||
| export function isAnalyzed<T>(x: T): x is Analyzed<T> { | ||
| return Math.random() > 0.33 ? false : true; | ||
| } | ||
|
|
||
| export function isPaired(x: {x: number, y: number}): x is Paired { | ||
| return true; | ||
| } | ||
|
|
||
| export function makePair(x: number, y: number): Paired { | ||
| return {x, y} as Paired; | ||
| } | ||
|
|
||
| const a = "ok"; | ||
| export const b = downcase(a); | ||
| export const d = downcaseLit(b); | ||
|
|
||
| if (isDowncase(d)) { | ||
| d; | ||
| } | ||
|
|
||
| const e = {data: { value: "str" }}; | ||
| export const f = analyze(e); | ||
| if (isAnalyzed(e)) { | ||
| e; | ||
| } | ||
|
|
||
| export const g = makePair(0, 0); | ||
| const h = {x: 0, y: 0}; | ||
| if (isPaired(h)) { | ||
| h; | ||
| } | ||
|
|
||
|
|
||
| //// [structuralTagTypes.js] | ||
| "use strict"; | ||
| exports.__esModule = true; | ||
| function downcase(x) { | ||
| return x.toLocaleLowerCase(); | ||
| } | ||
| exports.downcase = downcase; | ||
| function downcaseLit(x) { | ||
| return x.toLocaleLowerCase(); | ||
| } | ||
| exports.downcaseLit = downcaseLit; | ||
| function isDowncase(x) { | ||
| return null; | ||
| } | ||
| exports.isDowncase = isDowncase; | ||
| function analyze(x) { | ||
| return x; | ||
| } | ||
| exports.analyze = analyze; | ||
| function isAnalyzed(x) { | ||
| return Math.random() > 0.33 ? false : true; | ||
| } | ||
| exports.isAnalyzed = isAnalyzed; | ||
| function isPaired(x) { | ||
| return true; | ||
| } | ||
| exports.isPaired = isPaired; | ||
| function makePair(x, y) { | ||
| return { x: x, y: y }; | ||
| } | ||
| exports.makePair = makePair; | ||
| var a = "ok"; | ||
| exports.b = downcase(a); | ||
| exports.d = downcaseLit(exports.b); | ||
| if (isDowncase(exports.d)) { | ||
| exports.d; | ||
| } | ||
| var e = { data: { value: "str" } }; | ||
| exports.f = analyze(e); | ||
| if (isAnalyzed(e)) { | ||
| e; | ||
| } | ||
| exports.g = makePair(0, 0); | ||
| var h = { x: 0, y: 0 }; | ||
| if (isPaired(h)) { | ||
| h; | ||
| } | ||
|
|
||
|
|
||
| //// [structuralTagTypes.d.ts] | ||
| export declare type Downcased = string & tag { | ||
| downcased: void; | ||
| }; | ||
| export declare type Analyzed<T> = T & tag { | ||
| analyzed: void; | ||
| }; | ||
| export declare type Paired = { | ||
| x: number & tag { | ||
| x: number; | ||
| }; | ||
| y: number & tag { | ||
| y: number; | ||
| }; | ||
| }; | ||
| export declare function downcase(x: string): Downcased; | ||
| export declare function downcaseLit<T extends string>(x: T): T & Downcased; | ||
| export declare function isDowncase(x: string): x is Downcased; | ||
| export declare function analyze<T>(x: T): Analyzed<T>; | ||
| export declare function isAnalyzed<T>(x: T): x is Analyzed<T>; | ||
| export declare function isPaired(x: { | ||
| x: number; | ||
| y: number; | ||
| }): x is Paired; | ||
| export declare function makePair(x: number, y: number): Paired; | ||
| export declare const b: Downcased; | ||
| export declare const d: Downcased; | ||
| export declare const f: Analyzed<{ | ||
| data: { | ||
| value: string; | ||
| }; | ||
| }>; | ||
| export declare const g: Paired; |
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