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Merged
sandersn merged 1 commit into from
Mar 3, 2023
Merged

Add tests for inferring contextual generic mapped types #52709

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123 changes: 123 additions & 0 deletions tests/baselines/reference/genericContextualTypes2.symbols
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=== tests/cases/conformance/types/typeRelationships/typeInference/genericContextualTypes2.ts ===
type LowInfer<T> = T & {};
>LowInfer : Symbol(LowInfer, Decl(genericContextualTypes2.ts, 0, 0))
>T : Symbol(T, Decl(genericContextualTypes2.ts, 0, 14))
>T : Symbol(T, Decl(genericContextualTypes2.ts, 0, 14))

type PartialAssigner<TContext, TKey extends keyof TContext> = (
>PartialAssigner : Symbol(PartialAssigner, Decl(genericContextualTypes2.ts, 0, 26))
>TContext : Symbol(TContext, Decl(genericContextualTypes2.ts, 2, 21))
>TKey : Symbol(TKey, Decl(genericContextualTypes2.ts, 2, 30))
>TContext : Symbol(TContext, Decl(genericContextualTypes2.ts, 2, 21))

context: TContext
>context : Symbol(context, Decl(genericContextualTypes2.ts, 2, 63))
>TContext : Symbol(TContext, Decl(genericContextualTypes2.ts, 2, 21))

) => TContext[TKey];
>TContext : Symbol(TContext, Decl(genericContextualTypes2.ts, 2, 21))
>TKey : Symbol(TKey, Decl(genericContextualTypes2.ts, 2, 30))

type PropertyAssigner<TContext> = {
>PropertyAssigner : Symbol(PropertyAssigner, Decl(genericContextualTypes2.ts, 4, 20))
>TContext : Symbol(TContext, Decl(genericContextualTypes2.ts, 6, 22))

[K in keyof TContext]?: PartialAssigner<TContext, K> | TContext[K];
>K : Symbol(K, Decl(genericContextualTypes2.ts, 7, 3))
>TContext : Symbol(TContext, Decl(genericContextualTypes2.ts, 6, 22))
>PartialAssigner : Symbol(PartialAssigner, Decl(genericContextualTypes2.ts, 0, 26))
>TContext : Symbol(TContext, Decl(genericContextualTypes2.ts, 6, 22))
>K : Symbol(K, Decl(genericContextualTypes2.ts, 7, 3))
>TContext : Symbol(TContext, Decl(genericContextualTypes2.ts, 6, 22))
>K : Symbol(K, Decl(genericContextualTypes2.ts, 7, 3))

};

type Meta<TContext> = {
>Meta : Symbol(Meta, Decl(genericContextualTypes2.ts, 8, 2))
>TContext : Symbol(TContext, Decl(genericContextualTypes2.ts, 10, 10))

action: (ctx: TContext) => void
>action : Symbol(action, Decl(genericContextualTypes2.ts, 10, 23))
>ctx : Symbol(ctx, Decl(genericContextualTypes2.ts, 11, 11))
>TContext : Symbol(TContext, Decl(genericContextualTypes2.ts, 10, 10))
}

interface AssignAction<TContext> {
>AssignAction : Symbol(AssignAction, Decl(genericContextualTypes2.ts, 12, 1))
>TContext : Symbol(TContext, Decl(genericContextualTypes2.ts, 14, 23))

type: "xstate.assign";
>type : Symbol(AssignAction.type, Decl(genericContextualTypes2.ts, 14, 34))

exec: (arg: TContext, meta: Meta<TContext>) => void;
>exec : Symbol(AssignAction.exec, Decl(genericContextualTypes2.ts, 15, 24))
>arg : Symbol(arg, Decl(genericContextualTypes2.ts, 16, 9))
>TContext : Symbol(TContext, Decl(genericContextualTypes2.ts, 14, 23))
>meta : Symbol(meta, Decl(genericContextualTypes2.ts, 16, 23))
>Meta : Symbol(Meta, Decl(genericContextualTypes2.ts, 8, 2))
>TContext : Symbol(TContext, Decl(genericContextualTypes2.ts, 14, 23))
}

declare function assign<TContext>(
>assign : Symbol(assign, Decl(genericContextualTypes2.ts, 17, 1))
>TContext : Symbol(TContext, Decl(genericContextualTypes2.ts, 19, 24))

assignment: PropertyAssigner<LowInfer<TContext>>
>assignment : Symbol(assignment, Decl(genericContextualTypes2.ts, 19, 34))
>PropertyAssigner : Symbol(PropertyAssigner, Decl(genericContextualTypes2.ts, 4, 20))
>LowInfer : Symbol(LowInfer, Decl(genericContextualTypes2.ts, 0, 0))
>TContext : Symbol(TContext, Decl(genericContextualTypes2.ts, 19, 24))

): AssignAction<TContext>;
>AssignAction : Symbol(AssignAction, Decl(genericContextualTypes2.ts, 12, 1))
>TContext : Symbol(TContext, Decl(genericContextualTypes2.ts, 19, 24))

type Config<TContext> = {
>Config : Symbol(Config, Decl(genericContextualTypes2.ts, 21, 26))
>TContext : Symbol(TContext, Decl(genericContextualTypes2.ts, 23, 12))

context: TContext;
>context : Symbol(context, Decl(genericContextualTypes2.ts, 23, 25))
>TContext : Symbol(TContext, Decl(genericContextualTypes2.ts, 23, 12))

entry?: AssignAction<TContext>;
>entry : Symbol(entry, Decl(genericContextualTypes2.ts, 24, 20))
>AssignAction : Symbol(AssignAction, Decl(genericContextualTypes2.ts, 12, 1))
>TContext : Symbol(TContext, Decl(genericContextualTypes2.ts, 23, 12))

};

declare function createMachine<TContext>(config: Config<TContext>): void;
>createMachine : Symbol(createMachine, Decl(genericContextualTypes2.ts, 26, 2))
>TContext : Symbol(TContext, Decl(genericContextualTypes2.ts, 28, 31))
>config : Symbol(config, Decl(genericContextualTypes2.ts, 28, 41))
>Config : Symbol(Config, Decl(genericContextualTypes2.ts, 21, 26))
>TContext : Symbol(TContext, Decl(genericContextualTypes2.ts, 28, 31))

createMachine<{ count: number }>({
>createMachine : Symbol(createMachine, Decl(genericContextualTypes2.ts, 26, 2))
>count : Symbol(count, Decl(genericContextualTypes2.ts, 30, 15))

context: {
>context : Symbol(context, Decl(genericContextualTypes2.ts, 30, 34))

count: 0,
>count : Symbol(count, Decl(genericContextualTypes2.ts, 31, 12))

},
entry: assign({
>entry : Symbol(entry, Decl(genericContextualTypes2.ts, 33, 4))
>assign : Symbol(assign, Decl(genericContextualTypes2.ts, 17, 1))

count: (ctx: { count: number }) => ++ctx.count,
>count : Symbol(count, Decl(genericContextualTypes2.ts, 34, 17))
>ctx : Symbol(ctx, Decl(genericContextualTypes2.ts, 35, 12))
>count : Symbol(count, Decl(genericContextualTypes2.ts, 35, 18))
>ctx.count : Symbol(count, Decl(genericContextualTypes2.ts, 35, 18))
>ctx : Symbol(ctx, Decl(genericContextualTypes2.ts, 35, 12))
>count : Symbol(count, Decl(genericContextualTypes2.ts, 35, 18))

}),
});

93 changes: 93 additions & 0 deletions tests/baselines/reference/genericContextualTypes2.types
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=== tests/cases/conformance/types/typeRelationships/typeInference/genericContextualTypes2.ts ===
type LowInfer<T> = T & {};
>LowInfer : LowInfer<T>

type PartialAssigner<TContext, TKey extends keyof TContext> = (
>PartialAssigner : PartialAssigner<TContext, TKey>

context: TContext
>context : TContext

) => TContext[TKey];

type PropertyAssigner<TContext> = {
>PropertyAssigner : PropertyAssigner<TContext>

[K in keyof TContext]?: PartialAssigner<TContext, K> | TContext[K];
};

type Meta<TContext> = {
>Meta : Meta<TContext>

action: (ctx: TContext) => void
>action : (ctx: TContext) => void
>ctx : TContext
}

interface AssignAction<TContext> {
type: "xstate.assign";
>type : "xstate.assign"

exec: (arg: TContext, meta: Meta<TContext>) => void;
>exec : (arg: TContext, meta: Meta<TContext>) => void
>arg : TContext
>meta : Meta<TContext>
}

declare function assign<TContext>(
>assign : <TContext>(assignment: PropertyAssigner<LowInfer<TContext>>) => AssignAction<TContext>

assignment: PropertyAssigner<LowInfer<TContext>>
>assignment : PropertyAssigner<LowInfer<TContext>>

): AssignAction<TContext>;

type Config<TContext> = {
>Config : Config<TContext>

context: TContext;
>context : TContext

entry?: AssignAction<TContext>;
>entry : AssignAction<TContext> | undefined

};

declare function createMachine<TContext>(config: Config<TContext>): void;
>createMachine : <TContext>(config: Config<TContext>) => void
>config : Config<TContext>

createMachine<{ count: number }>({
>createMachine<{ count: number }>({ context: { count: 0, }, entry: assign({ count: (ctx: { count: number }) => ++ctx.count, }),}) : void
>createMachine : <TContext>(config: Config<TContext>) => void
>count : number
>{ context: { count: 0, }, entry: assign({ count: (ctx: { count: number }) => ++ctx.count, }),} : { context: { count: number; }; entry: AssignAction<{ count: number; }>; }

context: {
>context : { count: number; }
>{ count: 0, } : { count: number; }

count: 0,
>count : number
>0 : 0

},
entry: assign({
>entry : AssignAction<{ count: number; }>
>assign({ count: (ctx: { count: number }) => ++ctx.count, }) : AssignAction<{ count: number; }>
>assign : <TContext>(assignment: PropertyAssigner<LowInfer<TContext>>) => AssignAction<TContext>
>{ count: (ctx: { count: number }) => ++ctx.count, } : { count: (ctx: { count: number;}) => number; }

count: (ctx: { count: number }) => ++ctx.count,
>count : (ctx: { count: number;}) => number
>(ctx: { count: number }) => ++ctx.count : (ctx: { count: number;}) => number
>ctx : { count: number; }
>count : number
>++ctx.count : number
>ctx.count : number
>ctx : { count: number; }
>count : number

}),
});

122 changes: 122 additions & 0 deletions tests/baselines/reference/genericContextualTypes3.symbols
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=== tests/cases/conformance/types/typeRelationships/typeInference/genericContextualTypes3.ts ===
type LowInfer<T> = T & {};
>LowInfer : Symbol(LowInfer, Decl(genericContextualTypes3.ts, 0, 0))
>T : Symbol(T, Decl(genericContextualTypes3.ts, 0, 14))
>T : Symbol(T, Decl(genericContextualTypes3.ts, 0, 14))

type PartialAssigner<TContext, TKey extends keyof TContext> = (
>PartialAssigner : Symbol(PartialAssigner, Decl(genericContextualTypes3.ts, 0, 26))
>TContext : Symbol(TContext, Decl(genericContextualTypes3.ts, 2, 21))
>TKey : Symbol(TKey, Decl(genericContextualTypes3.ts, 2, 30))
>TContext : Symbol(TContext, Decl(genericContextualTypes3.ts, 2, 21))

context: TContext
>context : Symbol(context, Decl(genericContextualTypes3.ts, 2, 63))
>TContext : Symbol(TContext, Decl(genericContextualTypes3.ts, 2, 21))

) => TContext[TKey];
>TContext : Symbol(TContext, Decl(genericContextualTypes3.ts, 2, 21))
>TKey : Symbol(TKey, Decl(genericContextualTypes3.ts, 2, 30))

type PropertyAssigner<TContext> = {
>PropertyAssigner : Symbol(PropertyAssigner, Decl(genericContextualTypes3.ts, 4, 20))
>TContext : Symbol(TContext, Decl(genericContextualTypes3.ts, 6, 22))

[K in keyof TContext]?: PartialAssigner<TContext, K> | TContext[K];
>K : Symbol(K, Decl(genericContextualTypes3.ts, 7, 3))
>TContext : Symbol(TContext, Decl(genericContextualTypes3.ts, 6, 22))
>PartialAssigner : Symbol(PartialAssigner, Decl(genericContextualTypes3.ts, 0, 26))
>TContext : Symbol(TContext, Decl(genericContextualTypes3.ts, 6, 22))
>K : Symbol(K, Decl(genericContextualTypes3.ts, 7, 3))
>TContext : Symbol(TContext, Decl(genericContextualTypes3.ts, 6, 22))
>K : Symbol(K, Decl(genericContextualTypes3.ts, 7, 3))

};

type Meta<TContext> = {
>Meta : Symbol(Meta, Decl(genericContextualTypes3.ts, 8, 2))
>TContext : Symbol(TContext, Decl(genericContextualTypes3.ts, 10, 10))

action: (ctx: TContext) => void
>action : Symbol(action, Decl(genericContextualTypes3.ts, 10, 23))
>ctx : Symbol(ctx, Decl(genericContextualTypes3.ts, 11, 11))
>TContext : Symbol(TContext, Decl(genericContextualTypes3.ts, 10, 10))
}

interface AssignAction<TContext> {
>AssignAction : Symbol(AssignAction, Decl(genericContextualTypes3.ts, 12, 1))
>TContext : Symbol(TContext, Decl(genericContextualTypes3.ts, 14, 23))

type: "xstate.assign";
>type : Symbol(AssignAction.type, Decl(genericContextualTypes3.ts, 14, 34))

(arg: TContext, meta: Meta<TContext>): void;
>arg : Symbol(arg, Decl(genericContextualTypes3.ts, 16, 3))
>TContext : Symbol(TContext, Decl(genericContextualTypes3.ts, 14, 23))
>meta : Symbol(meta, Decl(genericContextualTypes3.ts, 16, 17))
>Meta : Symbol(Meta, Decl(genericContextualTypes3.ts, 8, 2))
>TContext : Symbol(TContext, Decl(genericContextualTypes3.ts, 14, 23))
}

declare function assign<TContext>(
>assign : Symbol(assign, Decl(genericContextualTypes3.ts, 17, 1))
>TContext : Symbol(TContext, Decl(genericContextualTypes3.ts, 19, 24))

assignment: PropertyAssigner<LowInfer<TContext>>
>assignment : Symbol(assignment, Decl(genericContextualTypes3.ts, 19, 34))
>PropertyAssigner : Symbol(PropertyAssigner, Decl(genericContextualTypes3.ts, 4, 20))
>LowInfer : Symbol(LowInfer, Decl(genericContextualTypes3.ts, 0, 0))
>TContext : Symbol(TContext, Decl(genericContextualTypes3.ts, 19, 24))

): AssignAction<TContext>;
>AssignAction : Symbol(AssignAction, Decl(genericContextualTypes3.ts, 12, 1))
>TContext : Symbol(TContext, Decl(genericContextualTypes3.ts, 19, 24))

type Config<TContext> = {
>Config : Symbol(Config, Decl(genericContextualTypes3.ts, 21, 26))
>TContext : Symbol(TContext, Decl(genericContextualTypes3.ts, 23, 12))

context: TContext;
>context : Symbol(context, Decl(genericContextualTypes3.ts, 23, 25))
>TContext : Symbol(TContext, Decl(genericContextualTypes3.ts, 23, 12))

entry?: AssignAction<TContext>;
>entry : Symbol(entry, Decl(genericContextualTypes3.ts, 24, 20))
>AssignAction : Symbol(AssignAction, Decl(genericContextualTypes3.ts, 12, 1))
>TContext : Symbol(TContext, Decl(genericContextualTypes3.ts, 23, 12))

};

declare function createMachine<TContext>(config: Config<TContext>): void;
>createMachine : Symbol(createMachine, Decl(genericContextualTypes3.ts, 26, 2))
>TContext : Symbol(TContext, Decl(genericContextualTypes3.ts, 28, 31))
>config : Symbol(config, Decl(genericContextualTypes3.ts, 28, 41))
>Config : Symbol(Config, Decl(genericContextualTypes3.ts, 21, 26))
>TContext : Symbol(TContext, Decl(genericContextualTypes3.ts, 28, 31))

createMachine<{ count: number }>({
>createMachine : Symbol(createMachine, Decl(genericContextualTypes3.ts, 26, 2))
>count : Symbol(count, Decl(genericContextualTypes3.ts, 30, 15))

context: {
>context : Symbol(context, Decl(genericContextualTypes3.ts, 30, 34))

count: 0,
>count : Symbol(count, Decl(genericContextualTypes3.ts, 31, 12))

},
entry: assign({
>entry : Symbol(entry, Decl(genericContextualTypes3.ts, 33, 4))
>assign : Symbol(assign, Decl(genericContextualTypes3.ts, 17, 1))

count: (ctx: { count: number }) => ++ctx.count,
>count : Symbol(count, Decl(genericContextualTypes3.ts, 34, 17))
>ctx : Symbol(ctx, Decl(genericContextualTypes3.ts, 35, 12))
>count : Symbol(count, Decl(genericContextualTypes3.ts, 35, 18))
>ctx.count : Symbol(count, Decl(genericContextualTypes3.ts, 35, 18))
>ctx : Symbol(ctx, Decl(genericContextualTypes3.ts, 35, 12))
>count : Symbol(count, Decl(genericContextualTypes3.ts, 35, 18))

}),
});

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