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Add an extra test case for mapped type relationships #53232

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19 changes: 18 additions & 1 deletion tests/baselines/reference/mappedTypeRelationships.errors.txt
Original file line number Diff line number Diff line change
Expand Up @@ -372,4 +372,21 @@ tests/cases/conformance/types/mapped/mappedTypeRelationships.ts(168,5): error TS
function f<T extends { x: {} }>(): Partial<T> {
return undefined! as T;
}


// #32365
interface SettingsTypes {
audio: {
volume: string;
};
video: {
resolution: string;
};
}
interface Settings<Params extends { [K in keyof Params]?: string }> {
config: Params;
}
type ConcreteSettingsResult1 = Settings<SettingsTypes["audio"]>;
type ConcreteSettingsResult2 = Settings<SettingsTypes["audio" | "video"]>;
type GenericSettingsAccess<T extends keyof SettingsTypes> = Settings<SettingsTypes[T]>;
type GenericSettingsResult1 = GenericSettingsAccess<"audio">;
type GenericSettingsResult2 = GenericSettingsAccess<"audio" | "video">;
37 changes: 36 additions & 1 deletion tests/baselines/reference/mappedTypeRelationships.js
Original file line number Diff line number Diff line change
Expand Up @@ -190,7 +190,24 @@ function f90<T extends { x: number }>() {
function f<T extends { x: {} }>(): Partial<T> {
return undefined! as T;
}


// #32365
interface SettingsTypes {
audio: {
volume: string;
};
video: {
resolution: string;
};
}
interface Settings<Params extends { [K in keyof Params]?: string }> {
config: Params;
}
type ConcreteSettingsResult1 = Settings<SettingsTypes["audio"]>;
type ConcreteSettingsResult2 = Settings<SettingsTypes["audio" | "video"]>;
type GenericSettingsAccess<T extends keyof SettingsTypes> = Settings<SettingsTypes[T]>;
type GenericSettingsResult1 = GenericSettingsAccess<"audio">;
type GenericSettingsResult2 = GenericSettingsAccess<"audio" | "video">;

//// [mappedTypeRelationships.js]
function f1(x, k) {
Expand Down Expand Up @@ -418,3 +435,21 @@ declare function f90<T extends {
declare function f<T extends {
x: {};
}>(): Partial<T>;
interface SettingsTypes {
audio: {
volume: string;
};
video: {
resolution: string;
};
}
interface Settings<Params extends {
[K in keyof Params]?: string;
}> {
config: Params;
}
type ConcreteSettingsResult1 = Settings<SettingsTypes["audio"]>;
type ConcreteSettingsResult2 = Settings<SettingsTypes["audio" | "video"]>;
type GenericSettingsAccess<T extends keyof SettingsTypes> = Settings<SettingsTypes[T]>;
type GenericSettingsResult1 = GenericSettingsAccess<"audio">;
type GenericSettingsResult2 = GenericSettingsAccess<"audio" | "video">;
55 changes: 55 additions & 0 deletions tests/baselines/reference/mappedTypeRelationships.symbols
Original file line number Diff line number Diff line change
Expand Up @@ -836,3 +836,58 @@ function f<T extends { x: {} }>(): Partial<T> {
>T : Symbol(T, Decl(mappedTypeRelationships.ts, 188, 11))
}

// #32365
interface SettingsTypes {
>SettingsTypes : Symbol(SettingsTypes, Decl(mappedTypeRelationships.ts, 190, 1))

audio: {
>audio : Symbol(SettingsTypes.audio, Decl(mappedTypeRelationships.ts, 193, 25))

volume: string;
>volume : Symbol(volume, Decl(mappedTypeRelationships.ts, 194, 10))

};
video: {
>video : Symbol(SettingsTypes.video, Decl(mappedTypeRelationships.ts, 196, 4))

resolution: string;
>resolution : Symbol(resolution, Decl(mappedTypeRelationships.ts, 197, 10))

};
}
interface Settings<Params extends { [K in keyof Params]?: string }> {
>Settings : Symbol(Settings, Decl(mappedTypeRelationships.ts, 200, 1))
>Params : Symbol(Params, Decl(mappedTypeRelationships.ts, 201, 19))
>K : Symbol(K, Decl(mappedTypeRelationships.ts, 201, 37))
>Params : Symbol(Params, Decl(mappedTypeRelationships.ts, 201, 19))

config: Params;
>config : Symbol(Settings.config, Decl(mappedTypeRelationships.ts, 201, 69))
>Params : Symbol(Params, Decl(mappedTypeRelationships.ts, 201, 19))
}
type ConcreteSettingsResult1 = Settings<SettingsTypes["audio"]>;
>ConcreteSettingsResult1 : Symbol(ConcreteSettingsResult1, Decl(mappedTypeRelationships.ts, 203, 1))
>Settings : Symbol(Settings, Decl(mappedTypeRelationships.ts, 200, 1))
>SettingsTypes : Symbol(SettingsTypes, Decl(mappedTypeRelationships.ts, 190, 1))

type ConcreteSettingsResult2 = Settings<SettingsTypes["audio" | "video"]>;
>ConcreteSettingsResult2 : Symbol(ConcreteSettingsResult2, Decl(mappedTypeRelationships.ts, 204, 64))
>Settings : Symbol(Settings, Decl(mappedTypeRelationships.ts, 200, 1))
>SettingsTypes : Symbol(SettingsTypes, Decl(mappedTypeRelationships.ts, 190, 1))

type GenericSettingsAccess<T extends keyof SettingsTypes> = Settings<SettingsTypes[T]>;
>GenericSettingsAccess : Symbol(GenericSettingsAccess, Decl(mappedTypeRelationships.ts, 205, 74))
>T : Symbol(T, Decl(mappedTypeRelationships.ts, 206, 27))
>SettingsTypes : Symbol(SettingsTypes, Decl(mappedTypeRelationships.ts, 190, 1))
>Settings : Symbol(Settings, Decl(mappedTypeRelationships.ts, 200, 1))
>SettingsTypes : Symbol(SettingsTypes, Decl(mappedTypeRelationships.ts, 190, 1))
>T : Symbol(T, Decl(mappedTypeRelationships.ts, 206, 27))

type GenericSettingsResult1 = GenericSettingsAccess<"audio">;
>GenericSettingsResult1 : Symbol(GenericSettingsResult1, Decl(mappedTypeRelationships.ts, 206, 87))
>GenericSettingsAccess : Symbol(GenericSettingsAccess, Decl(mappedTypeRelationships.ts, 205, 74))

type GenericSettingsResult2 = GenericSettingsAccess<"audio" | "video">;
>GenericSettingsResult2 : Symbol(GenericSettingsResult2, Decl(mappedTypeRelationships.ts, 207, 61))
>GenericSettingsAccess : Symbol(GenericSettingsAccess, Decl(mappedTypeRelationships.ts, 205, 74))

36 changes: 36 additions & 0 deletions tests/baselines/reference/mappedTypeRelationships.types
Original file line number Diff line number Diff line change
Expand Up @@ -678,3 +678,39 @@ function f<T extends { x: {} }>(): Partial<T> {
>undefined : undefined
}

// #32365
interface SettingsTypes {
audio: {
>audio : { volume: string; }

volume: string;
>volume : string

};
video: {
>video : { resolution: string; }

resolution: string;
>resolution : string

};
}
interface Settings<Params extends { [K in keyof Params]?: string }> {
config: Params;
>config : Params
}
type ConcreteSettingsResult1 = Settings<SettingsTypes["audio"]>;
>ConcreteSettingsResult1 : Settings<{ volume: string; }>

type ConcreteSettingsResult2 = Settings<SettingsTypes["audio" | "video"]>;
>ConcreteSettingsResult2 : Settings<{ volume: string; } | { resolution: string; }>

type GenericSettingsAccess<T extends keyof SettingsTypes> = Settings<SettingsTypes[T]>;
>GenericSettingsAccess : GenericSettingsAccess<T>

type GenericSettingsResult1 = GenericSettingsAccess<"audio">;
>GenericSettingsResult1 : Settings<{ volume: string; }>

type GenericSettingsResult2 = GenericSettingsAccess<"audio" | "video">;
>GenericSettingsResult2 : Settings<{ volume: string; } | { resolution: string; }>

18 changes: 18 additions & 0 deletions tests/cases/conformance/types/mapped/mappedTypeRelationships.ts
Original file line number Diff line number Diff line change
Expand Up @@ -192,3 +192,21 @@ function f90<T extends { x: number }>() {
function f<T extends { x: {} }>(): Partial<T> {
return undefined! as T;
}

// #32365
interface SettingsTypes {
audio: {
volume: string;
};
video: {
resolution: string;
};
}
interface Settings<Params extends { [K in keyof Params]?: string }> {
config: Params;
}
type ConcreteSettingsResult1 = Settings<SettingsTypes["audio"]>;
type ConcreteSettingsResult2 = Settings<SettingsTypes["audio" | "video"]>;
type GenericSettingsAccess<T extends keyof SettingsTypes> = Settings<SettingsTypes[T]>;
type GenericSettingsResult1 = GenericSettingsAccess<"audio">;
type GenericSettingsResult2 = GenericSettingsAccess<"audio" | "video">;