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=== tests/cases/compiler/infiniteConstraints.ts ===
// Both of the following types trigger the recursion limiter in getImmediateBaseConstraint
type T1<B extends { [K in keyof B]: Extract<B[Exclude<keyof B, K>], { val: string }>["val"] }> = B;
>T1 : B
>val : string
type T2<B extends { [K in keyof B]: B[Exclude<keyof B, K>]["val"] }> = B;
>T2 : B
// Repros from #22950
type AProp<T extends { a: string }> = T
>AProp : T
>a : string
declare function myBug<
>myBug : <T extends { [K in keyof T]: T[K] extends infer U extends { a: string; } ? U : never; }>(arg: T) => T
T extends { [K in keyof T]: T[K] extends AProp<infer U> ? U : never }
>(arg: T): T
>arg : T
const out = myBug({obj1: {a: "test"}})
>out : { obj1: { a: string; }; }
>myBug({obj1: {a: "test"}}) : { obj1: { a: string; }; }
>myBug : <T extends { [K in keyof T]: T[K] extends infer U extends { a: string; } ? U : never; }>(arg: T) => T
>{obj1: {a: "test"}} : { obj1: { a: string; }; }
>obj1 : { a: string; }
>{a: "test"} : { a: string; }
>a : string
>"test" : "test"
type Value<V extends string = string> = Record<"val", V>;
>Value : Value<V>
declare function value<V extends string>(val: V): Value<V>;
>value : <V extends string>(val: V) => Value<V>
>val : V
declare function ensureNoDuplicates<
>ensureNoDuplicates : <T extends { [K in keyof T]: Extract<T[K], Value<string>>["val"] extends Extract<T[Exclude<keyof T, K>], Value<string>>["val"] ? never : any; }>(vals: T) => void
T extends {
[K in keyof T]: Extract<T[K], Value>["val"] extends Extract<T[Exclude<keyof T, K>], Value>["val"]
? never
: any
}
>(vals: T): void;
>vals : T
const noError = ensureNoDuplicates({main: value("test"), alternate: value("test2")});
>noError : void
>ensureNoDuplicates({main: value("test"), alternate: value("test2")}) : void
>ensureNoDuplicates : <T extends { [K in keyof T]: Extract<T[K], Value<string>>["val"] extends Extract<T[Exclude<keyof T, K>], Value<string>>["val"] ? never : any; }>(vals: T) => void
>{main: value("test"), alternate: value("test2")} : { main: Value<"test">; alternate: Value<"test2">; }
>main : Value<"test">
>value("test") : Value<"test">
>value : <V extends string>(val: V) => Value<V>
>"test" : "test"
>alternate : Value<"test2">
>value("test2") : Value<"test2">
>value : <V extends string>(val: V) => Value<V>
>"test2" : "test2"
const shouldBeNoError = ensureNoDuplicates({main: value("test")});
>shouldBeNoError : void
>ensureNoDuplicates({main: value("test")}) : void
>ensureNoDuplicates : <T extends { [K in keyof T]: Extract<T[K], Value<string>>["val"] extends Extract<T[Exclude<keyof T, K>], Value<string>>["val"] ? never : any; }>(vals: T) => void
>{main: value("test")} : { main: Value<"test">; }
>main : Value<"test">
>value("test") : Value<"test">
>value : <V extends string>(val: V) => Value<V>
>"test" : "test"
const shouldBeError = ensureNoDuplicates({main: value("dup"), alternate: value("dup")});
>shouldBeError : void
>ensureNoDuplicates({main: value("dup"), alternate: value("dup")}) : void
>ensureNoDuplicates : <T extends { [K in keyof T]: Extract<T[K], Value<string>>["val"] extends Extract<T[Exclude<keyof T, K>], Value<string>>["val"] ? never : any; }>(vals: T) => void
>{main: value("dup"), alternate: value("dup")} : { main: Value<"dup">; alternate: Value<"dup">; }
>main : Value<"dup">
>value("dup") : Value<"dup">
>value : <V extends string>(val: V) => Value<V>
>"dup" : "dup"
>alternate : Value<"dup">
>value("dup") : Value<"dup">
>value : <V extends string>(val: V) => Value<V>
>"dup" : "dup"
// Repro from #26448
type Cond<T> = T extends number ? number : never;
>Cond : Cond<T>
declare function function1<T extends {[K in keyof T]: Cond<T[K]>}>(): T[keyof T]["foo"];
>function1 : <T extends { [K in keyof T]: Cond<T[K]>; }>() => T[keyof T]["foo"]
// Repro from #31823
export type Prepend<Elm, T extends unknown[]> =
>Prepend : Prepend<Elm, T>
T extends unknown ?
((arg: Elm, ...rest: T) => void) extends ((...args: infer T2) => void) ? T2 :
>arg : Elm
>rest : T
>args : T2
never :
never;
export type ExactExtract<T, U> = T extends U ? U extends T ? T : never : never;
>ExactExtract : ExactExtract<T, U>
type Conv<T, U = T> =
>Conv : Conv<T, U>
{ 0: [T]; 1: Prepend<T, Conv<ExactExtract<U, T>>>;}[U extends T ? 0 : 1];
>0 : [T]
>1 : Prepend<T, Conv<ExactExtract<U, T>, ExactExtract<U, T>>>
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