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tests/cases/conformance/types/typeRelationships/subtypesAndSuperTypes/subtypesOfTypeParameterWithConstraints4.ts(47,5): error TS2411: Property 'foo' of type 'V' is not assignable to 'string' index type 'Foo'.
tests/cases/conformance/types/typeRelationships/subtypesAndSuperTypes/subtypesOfTypeParameterWithConstraints4.ts(47,5): error TS2416: Property 'foo' in type 'D3<T, U, V>' is not assignable to the same property in base type 'B1<Foo>'.
Type 'V' is not assignable to type 'Foo'.
tests/cases/conformance/types/typeRelationships/subtypesAndSuperTypes/subtypesOfTypeParameterWithConstraints4.ts(57,5): error TS2411: Property 'foo' of type 'U' is not assignable to 'string' index type 'T'.
tests/cases/conformance/types/typeRelationships/subtypesAndSuperTypes/subtypesOfTypeParameterWithConstraints4.ts(57,5): error TS2416: Property 'foo' in type 'D5<T, U, V>' is not assignable to the same property in base type 'B1<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 'Foo'.
tests/cases/conformance/types/typeRelationships/subtypesAndSuperTypes/subtypesOfTypeParameterWithConstraints4.ts(62,5): error TS2411: Property 'foo' of type 'V' is not assignable to 'string' index type 'T'.
tests/cases/conformance/types/typeRelationships/subtypesAndSuperTypes/subtypesOfTypeParameterWithConstraints4.ts(62,5): error TS2416: Property 'foo' in type 'D6<T, U, V>' is not assignable to the same property in base type 'B1<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/subtypesOfTypeParameterWithConstraints4.ts(67,5): error TS2411: Property 'foo' of type 'T' is not assignable to 'string' index type 'U'.
tests/cases/conformance/types/typeRelationships/subtypesAndSuperTypes/subtypesOfTypeParameterWithConstraints4.ts(67,5): error TS2416: Property 'foo' in type 'D7<T, U, V>' is not assignable to the same property in base type 'B1<U>'.
Type 'T' is not assignable to type 'U'.
'T' is assignable to the constraint of type 'U', but 'U' could be instantiated with a different subtype of constraint 'Foo'.
tests/cases/conformance/types/typeRelationships/subtypesAndSuperTypes/subtypesOfTypeParameterWithConstraints4.ts(77,5): error TS2411: Property 'foo' of type 'V' is not assignable to 'string' index type 'U'.
tests/cases/conformance/types/typeRelationships/subtypesAndSuperTypes/subtypesOfTypeParameterWithConstraints4.ts(77,5): error TS2416: Property 'foo' in type 'D9<T, U, V>' is not assignable to the same property in base type 'B1<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/subtypesOfTypeParameterWithConstraints4.ts (10 errors) ====
// checking whether other types are subtypes of type parameters with constraints
class Foo { foo: number; }
function f<T extends Foo, U extends Foo, V>(t: T, u: U, v: V) {
// ok
var r = true ? t : u;
var r = true ? u : t;
// ok
var r2 = true ? t : v;
var r2 = true ? v : t;
// ok
var r3 = true ? v : u;
var r3 = true ? u : v;
// ok
var r4 = true ? t : new Foo();
var r4 = true ? new Foo() : t;
// ok
var r5 = true ? u : new Foo();
var r5 = true ? new Foo() : u;
// ok
var r6 = true ? v : new Foo();
var r6 = true ? new Foo() : v;
}
class B1<T> {
foo: T;
}
class D1<T extends Foo, U extends Foo, V> extends B1<Foo> {
[x: string]: Foo;
foo: T; // ok
}
class D2<T extends Foo, U extends Foo, V> extends B1<Foo> {
[x: string]: Foo;
foo: U; // ok
}
class D3<T extends Foo, U extends Foo, V> extends B1<Foo> {
[x: string]: Foo;
foo: V; // error
~~~
!!! error TS2411: Property 'foo' of type 'V' is not assignable to 'string' index type 'Foo'.
~~~
!!! error TS2416: Property 'foo' in type 'D3<T, U, V>' is not assignable to the same property in base type 'B1<Foo>'.
!!! error TS2416: Type 'V' is not assignable to type 'Foo'.
!!! related TS2208 tests/cases/conformance/types/typeRelationships/subtypesAndSuperTypes/subtypesOfTypeParameterWithConstraints4.ts:45:40: This type parameter might need an `extends Foo` constraint.
}
class D4<T extends Foo, U extends Foo, V> extends B1<T> {
[x: string]: T;
foo: T; // ok
}
class D5<T extends Foo, U extends Foo, V> extends B1<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 'D5<T, U, V>' is not assignable to the same property in base type 'B1<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 'Foo'.
}
class D6<T extends Foo, U extends Foo, V> extends B1<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 'D6<T, U, V>' is not assignable to the same property in base type 'B1<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/subtypesOfTypeParameterWithConstraints4.ts:60:40: This type parameter might need an `extends T` constraint.
}
class D7<T extends Foo, U extends Foo, V> extends B1<U> {
[x: string]: U;
foo: T; // error
~~~
!!! error TS2411: Property 'foo' of type 'T' is not assignable to 'string' index type 'U'.
~~~
!!! error TS2416: Property 'foo' in type 'D7<T, U, V>' is not assignable to the same property in base type 'B1<U>'.
!!! error TS2416: Type 'T' is not assignable to type 'U'.
!!! error TS2416: 'T' is assignable to the constraint of type 'U', but 'U' could be instantiated with a different subtype of constraint 'Foo'.
}
class D8<T extends Foo, U extends Foo, V> extends B1<U> {
[x: string]: U;
foo: U; // ok
}
class D9<T extends Foo, U extends Foo, V> extends B1<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 'D9<T, U, V>' is not assignable to the same property in base type 'B1<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/subtypesOfTypeParameterWithConstraints4.ts:75:40: This type parameter might need an `extends U` constraint.
}
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