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tests/cases/conformance/types/typeRelationships/subtypesAndSuperTypes/subtypesOfTypeParameterWithConstraints.ts(19,5): error TS2411: Property 'foo' of type 'U' is not assignable to 'string' index type 'T'.
tests/cases/conformance/types/typeRelationships/subtypesAndSuperTypes/subtypesOfTypeParameterWithConstraints.ts(19,5): error TS2416: Property 'foo' in type 'D3<T, U>' is not assignable to the same property in base type 'C3<T>'.
Type 'U' is not assignable to type 'T'.
'T' could be instantiated with an arbitrary type which could be unrelated to 'U'.
tests/cases/conformance/types/typeRelationships/subtypesAndSuperTypes/subtypesOfTypeParameterWithConstraints.ts(50,5): error TS2411: Property 'foo' of type 'U' is not assignable to 'string' index type 'T'.
tests/cases/conformance/types/typeRelationships/subtypesAndSuperTypes/subtypesOfTypeParameterWithConstraints.ts(50,5): error TS2416: Property 'foo' in type 'D8<T, U, V>' is not assignable to the same property in base type 'C3<T>'.
Type 'U' is not assignable to type 'T'.
'T' could be instantiated with an arbitrary type which could be unrelated to 'U'.
tests/cases/conformance/types/typeRelationships/subtypesAndSuperTypes/subtypesOfTypeParameterWithConstraints.ts(67,5): error TS2411: Property 'foo' of type 'V' is not assignable to 'string' index type 'T'.
tests/cases/conformance/types/typeRelationships/subtypesAndSuperTypes/subtypesOfTypeParameterWithConstraints.ts(67,5): error TS2416: Property 'foo' in type 'D11<T, U, V>' is not assignable to the same property in base type 'C3<T>'.
Type 'V' is not assignable to type 'T'.
'T' could be instantiated with an arbitrary type which could be unrelated to 'V'.
tests/cases/conformance/types/typeRelationships/subtypesAndSuperTypes/subtypesOfTypeParameterWithConstraints.ts(72,5): error TS2411: Property 'foo' of type 'V' is not assignable to 'string' index type 'U'.
tests/cases/conformance/types/typeRelationships/subtypesAndSuperTypes/subtypesOfTypeParameterWithConstraints.ts(72,5): error TS2416: Property 'foo' in type 'D12<T, U, V>' is not assignable to the same property in base type 'C3<U>'.
Type 'V' is not assignable to type 'U'.
'U' could be instantiated with an arbitrary type which could be unrelated to 'V'.
tests/cases/conformance/types/typeRelationships/subtypesAndSuperTypes/subtypesOfTypeParameterWithConstraints.ts(112,5): error TS2411: Property 'foo' of type 'U' is not assignable to 'string' index type 'T'.
tests/cases/conformance/types/typeRelationships/subtypesAndSuperTypes/subtypesOfTypeParameterWithConstraints.ts(112,5): error TS2416: Property 'foo' in type 'D19<T, U, V>' is not assignable to the same property in base type 'C3<T>'.
Type 'U' is not assignable to type 'T'.
'U' is assignable to the constraint of type 'T', but 'T' could be instantiated with a different subtype of constraint 'Date'.
tests/cases/conformance/types/typeRelationships/subtypesAndSuperTypes/subtypesOfTypeParameterWithConstraints.ts(134,5): error TS2411: Property 'foo' of type 'V' is not assignable to 'string' index type 'T'.
tests/cases/conformance/types/typeRelationships/subtypesAndSuperTypes/subtypesOfTypeParameterWithConstraints.ts(134,5): error TS2416: Property 'foo' in type 'D23<T, U, V>' is not assignable to the same property in base type 'C3<T>'.
Type 'V' is not assignable to type 'T'.
'V' is assignable to the constraint of type 'T', but 'T' could be instantiated with a different subtype of constraint 'Date'.
tests/cases/conformance/types/typeRelationships/subtypesAndSuperTypes/subtypesOfTypeParameterWithConstraints.ts(139,5): error TS2411: Property 'foo' of type 'V' is not assignable to 'string' index type 'U'.
tests/cases/conformance/types/typeRelationships/subtypesAndSuperTypes/subtypesOfTypeParameterWithConstraints.ts(139,5): error TS2416: Property 'foo' in type 'D24<T, U, V>' is not assignable to the same property in base type 'C3<U>'.
Type 'V' is not assignable to type 'U'.
'V' is assignable to the constraint of type 'U', but 'U' could be instantiated with a different subtype of constraint 'Date'.
tests/cases/conformance/types/typeRelationships/subtypesAndSuperTypes/subtypesOfTypeParameterWithConstraints.ts(156,5): error TS2411: Property 'foo' of type 'Date' is not assignable to 'string' index type 'T'.
tests/cases/conformance/types/typeRelationships/subtypesAndSuperTypes/subtypesOfTypeParameterWithConstraints.ts(156,5): error TS2416: Property 'foo' in type 'D27<T, U, V>' is not assignable to the same property in base type 'C3<T>'.
Type 'Date' is not assignable to type 'T'.
'Date' is assignable to the constraint of type 'T', but 'T' could be instantiated with a different subtype of constraint 'Date'.
tests/cases/conformance/types/typeRelationships/subtypesAndSuperTypes/subtypesOfTypeParameterWithConstraints.ts(161,5): error TS2411: Property 'foo' of type 'Date' is not assignable to 'string' index type 'U'.
tests/cases/conformance/types/typeRelationships/subtypesAndSuperTypes/subtypesOfTypeParameterWithConstraints.ts(161,5): error TS2416: Property 'foo' in type 'D28<T, U, V>' is not assignable to the same property in base type 'C3<U>'.
Type 'Date' is not assignable to type 'U'.
'Date' is assignable to the constraint of type 'U', but 'U' could be instantiated with a different subtype of constraint 'Date'.
tests/cases/conformance/types/typeRelationships/subtypesAndSuperTypes/subtypesOfTypeParameterWithConstraints.ts(166,5): error TS2411: Property 'foo' of type 'Date' is not assignable to 'string' index type 'V'.
tests/cases/conformance/types/typeRelationships/subtypesAndSuperTypes/subtypesOfTypeParameterWithConstraints.ts(166,5): error TS2416: Property 'foo' in type 'D29<T, U, V>' is not assignable to the same property in base type 'C3<V>'.
Type 'Date' is not assignable to type 'V'.
'Date' is assignable to the constraint of type 'V', but 'V' could be instantiated with a different subtype of constraint 'Date'.
==== tests/cases/conformance/types/typeRelationships/subtypesAndSuperTypes/subtypesOfTypeParameterWithConstraints.ts (20 errors) ====
// checking whether other types are subtypes of type parameters with constraints
class C3<T> {
foo: T;
}
class D1<T extends U, U> extends C3<T> {
[x: string]: T;
foo: T; // ok
}
class D2<T extends U, U> extends C3<U> {
[x: string]: U;
foo: T; // ok
}
class D3<T extends U, U> extends C3<T> {
[x: string]: T;
foo: U; // error
~~~
!!! error TS2411: Property 'foo' of type 'U' is not assignable to 'string' index type 'T'.
~~~
!!! error TS2416: Property 'foo' in type 'D3<T, U>' is not assignable to the same property in base type 'C3<T>'.
!!! error TS2416: Type 'U' is not assignable to type 'T'.
!!! error TS2416: 'T' could be instantiated with an arbitrary type which could be unrelated to 'U'.
!!! related TS2208 tests/cases/conformance/types/typeRelationships/subtypesAndSuperTypes/subtypesOfTypeParameterWithConstraints.ts:17:23: This type parameter might need an `extends T` constraint.
}
class D4<T extends U, U> extends C3<U> {
[x: string]: U;
foo: U; // ok
}
// V > U > T
// test if T is subtype of T, U, V
// should all work
class D5<T extends U, U extends V, V> extends C3<T> {
[x: string]: T;
foo: T; // ok
}
class D6<T extends U, U extends V, V> extends C3<U> {
[x: string]: U;
foo: T;
}
class D7<T extends U, U extends V, V> extends C3<V> {
[x: string]: V;
foo: T; // ok
}
// test if U is a subtype of T, U, V
// only a subtype of V and itself
class D8<T extends U, U extends V, V> extends C3<T> {
[x: string]: T;
foo: U; // error
~~~
!!! error TS2411: Property 'foo' of type 'U' is not assignable to 'string' index type 'T'.
~~~
!!! error TS2416: Property 'foo' in type 'D8<T, U, V>' is not assignable to the same property in base type 'C3<T>'.
!!! error TS2416: Type 'U' is not assignable to type 'T'.
!!! error TS2416: 'T' could be instantiated with an arbitrary type which could be unrelated to 'U'.
}
class D9<T extends U, U extends V, V> extends C3<U> {
[x: string]: U;
foo: U; // ok
}
class D10<T extends U, U extends V, V> extends C3<V> {
[x: string]: V;
foo: U; // ok
}
// test if V is a subtype of T, U, V
// only a subtype of itself
class D11<T extends U, U extends V, V> extends C3<T> {
[x: string]: T;
foo: V; // error
~~~
!!! error TS2411: Property 'foo' of type 'V' is not assignable to 'string' index type 'T'.
~~~
!!! error TS2416: Property 'foo' in type 'D11<T, U, V>' is not assignable to the same property in base type 'C3<T>'.
!!! error TS2416: Type 'V' is not assignable to type 'T'.
!!! error TS2416: 'T' could be instantiated with an arbitrary type which could be unrelated to 'V'.
!!! related TS2208 tests/cases/conformance/types/typeRelationships/subtypesAndSuperTypes/subtypesOfTypeParameterWithConstraints.ts:65:37: This type parameter might need an `extends T` constraint.
}
class D12<T extends U, U extends V, V> extends C3<U> {
[x: string]: U;
foo: V; // error
~~~
!!! error TS2411: Property 'foo' of type 'V' is not assignable to 'string' index type 'U'.
~~~
!!! error TS2416: Property 'foo' in type 'D12<T, U, V>' is not assignable to the same property in base type 'C3<U>'.
!!! error TS2416: Type 'V' is not assignable to type 'U'.
!!! error TS2416: 'U' could be instantiated with an arbitrary type which could be unrelated to 'V'.
!!! related TS2208 tests/cases/conformance/types/typeRelationships/subtypesAndSuperTypes/subtypesOfTypeParameterWithConstraints.ts:70:37: This type parameter might need an `extends U` constraint.
}
class D13<T extends U, U extends V, V> extends C3<V> {
[x: string]: V;
foo: V; // ok
}
// Date > V > U > T
// test if T is subtype of T, U, V, Date
// should all work
class D14<T extends U, U extends V, V extends Date> extends C3<Date> {
[x: string]: Date;
foo: T; // ok
}
class D15<T extends U, U extends V, V extends Date> extends C3<T> {
[x: string]: T;
foo: T; // ok
}
class D16<T extends U, U extends V, V extends Date> extends C3<U> {
[x: string]: U;
foo: T;
}
class D17<T extends U, U extends V, V extends Date> extends C3<V> {
[x: string]: V;
foo: T;
}
// test if U is a subtype of T, U, V, Date
// only a subtype of V, Date and itself
class D18<T extends U, U extends V, V extends Date> extends C3<Date> {
[x: string]: Date;
foo: T; // ok
}
class D19<T extends U, U extends V, V extends Date> extends C3<T> {
[x: string]: T;
foo: U; // error
~~~
!!! error TS2411: Property 'foo' of type 'U' is not assignable to 'string' index type 'T'.
~~~
!!! error TS2416: Property 'foo' in type 'D19<T, U, V>' is not assignable to the same property in base type 'C3<T>'.
!!! error TS2416: Type 'U' is not assignable to type 'T'.
!!! error TS2416: 'U' is assignable to the constraint of type 'T', but 'T' could be instantiated with a different subtype of constraint 'Date'.
}
class D20<T extends U, U extends V, V extends Date> extends C3<U> {
[x: string]: U;
foo: U; // ok
}
class D21<T extends U, U extends V, V extends Date> extends C3<V> {
[x: string]: V;
foo: U;
}
// test if V is a subtype of T, U, V, Date
// only a subtype of itself and Date
class D22<T extends U, U extends V, V extends Date> extends C3<Date> {
[x: string]: Date;
foo: T; // ok
}
class D23<T extends U, U extends V, V extends Date> extends C3<T> {
[x: string]: T;
foo: V; // error
~~~
!!! error TS2411: Property 'foo' of type 'V' is not assignable to 'string' index type 'T'.
~~~
!!! error TS2416: Property 'foo' in type 'D23<T, U, V>' is not assignable to the same property in base type 'C3<T>'.
!!! error TS2416: Type 'V' is not assignable to type 'T'.
!!! error TS2416: 'V' is assignable to the constraint of type 'T', but 'T' could be instantiated with a different subtype of constraint 'Date'.
}
class D24<T extends U, U extends V, V extends Date> extends C3<U> {
[x: string]: U;
foo: V; // error
~~~
!!! error TS2411: Property 'foo' of type 'V' is not assignable to 'string' index type 'U'.
~~~
!!! error TS2416: Property 'foo' in type 'D24<T, U, V>' is not assignable to the same property in base type 'C3<U>'.
!!! error TS2416: Type 'V' is not assignable to type 'U'.
!!! error TS2416: 'V' is assignable to the constraint of type 'U', but 'U' could be instantiated with a different subtype of constraint 'Date'.
}
class D25<T extends U, U extends V, V extends Date> extends C3<V> {
[x: string]: V;
foo: V; // ok
}
// test if Date is a subtype of T, U, V, Date
// only a subtype of itself
class D26<T extends U, U extends V, V extends Date> extends C3<Date> {
[x: string]: Date;
foo: Date; // ok
}
class D27<T extends U, U extends V, V extends Date> extends C3<T> {
[x: string]: T;
foo: Date; // error
~~~
!!! error TS2411: Property 'foo' of type 'Date' is not assignable to 'string' index type 'T'.
~~~
!!! error TS2416: Property 'foo' in type 'D27<T, U, V>' is not assignable to the same property in base type 'C3<T>'.
!!! error TS2416: Type 'Date' is not assignable to type 'T'.
!!! error TS2416: 'Date' is assignable to the constraint of type 'T', but 'T' could be instantiated with a different subtype of constraint 'Date'.
}
class D28<T extends U, U extends V, V extends Date> extends C3<U> {
[x: string]: U;
foo: Date; // error
~~~
!!! error TS2411: Property 'foo' of type 'Date' is not assignable to 'string' index type 'U'.
~~~
!!! error TS2416: Property 'foo' in type 'D28<T, U, V>' is not assignable to the same property in base type 'C3<U>'.
!!! error TS2416: Type 'Date' is not assignable to type 'U'.
!!! error TS2416: 'Date' is assignable to the constraint of type 'U', but 'U' could be instantiated with a different subtype of constraint 'Date'.
}
class D29<T extends U, U extends V, V extends Date> extends C3<V> {
[x: string]: V;
foo: Date; // error
~~~
!!! error TS2411: Property 'foo' of type 'Date' is not assignable to 'string' index type 'V'.
~~~
!!! error TS2416: Property 'foo' in type 'D29<T, U, V>' is not assignable to the same property in base type 'C3<V>'.
!!! error TS2416: Type 'Date' is not assignable to type 'V'.
!!! error TS2416: 'Date' is assignable to the constraint of type 'V', but 'V' could be instantiated with a different subtype of constraint 'Date'.
}
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