tests/cases/conformance/types/typeRelationships/typeAndMemberIdentity/objectTypesIdentityWithGenericConstructSignaturesDifferingByConstraints2.ts(5,9): error TS2313: Constraint of a type parameter cannot reference any type parameter from the same type parameter list. tests/cases/conformance/types/typeRelationships/typeAndMemberIdentity/objectTypesIdentityWithGenericConstructSignaturesDifferingByConstraints2.ts(9,9): error TS2313: Constraint of a type parameter cannot reference any type parameter from the same type parameter list. tests/cases/conformance/types/typeRelationships/typeAndMemberIdentity/objectTypesIdentityWithGenericConstructSignaturesDifferingByConstraints2.ts(13,9): error TS2313: Constraint of a type parameter cannot reference any type parameter from the same type parameter list. tests/cases/conformance/types/typeRelationships/typeAndMemberIdentity/objectTypesIdentityWithGenericConstructSignaturesDifferingByConstraints2.ts(17,13): error TS2313: Constraint of a type parameter cannot reference any type parameter from the same type parameter list. tests/cases/conformance/types/typeRelationships/typeAndMemberIdentity/objectTypesIdentityWithGenericConstructSignaturesDifferingByConstraints2.ts(22,9): error TS2313: Constraint of a type parameter cannot reference any type parameter from the same type parameter list. tests/cases/conformance/types/typeRelationships/typeAndMemberIdentity/objectTypesIdentityWithGenericConstructSignaturesDifferingByConstraints2.ts(25,14): error TS2313: Constraint of a type parameter cannot reference any type parameter from the same type parameter list. tests/cases/conformance/types/typeRelationships/typeAndMemberIdentity/objectTypesIdentityWithGenericConstructSignaturesDifferingByConstraints2.ts(26,15): error TS2313: Constraint of a type parameter cannot reference any type parameter from the same type parameter list. ==== tests/cases/conformance/types/typeRelationships/typeAndMemberIdentity/objectTypesIdentityWithGenericConstructSignaturesDifferingByConstraints2.ts (7 errors) ==== // Two call or construct signatures are considered identical when they have the same number of type parameters and, considering those // parameters pairwise identical, have identical type parameter constraints, identical number of parameters with identical kind(required, // optional or rest) and types, and identical return types. class B> { ~~~~~~~~~~~ !!! error TS2313: Constraint of a type parameter cannot reference any type parameter from the same type parameter list. constructor(x: T, y: U) { return null; } } class C { ~~~~~~~~~~~ !!! error TS2313: Constraint of a type parameter cannot reference any type parameter from the same type parameter list. constructor(x: T, y: U) { return null; } } class D { ~~~~~~~~~~~ !!! error TS2313: Constraint of a type parameter cannot reference any type parameter from the same type parameter list. constructor(x: T, y: U) { return null; } } interface I { ~~~~~~~~~~~ !!! error TS2313: Constraint of a type parameter cannot reference any type parameter from the same type parameter list. new(x: T, y: U): string; } interface I2 { new(x: T, y: U): string; ~~~~~~~~~~~ !!! error TS2313: Constraint of a type parameter cannot reference any type parameter from the same type parameter list. } var a: { new>(x: T, y: U): string } ~~~~~~~~~~~ !!! error TS2313: Constraint of a type parameter cannot reference any type parameter from the same type parameter list. var b = { new(x: T, y: U) { return ''; } }; // not a construct signature, function called new ~~~~~~~~~~~ !!! error TS2313: Constraint of a type parameter cannot reference any type parameter from the same type parameter list. function foo1b(x: B, Array>); function foo1b(x: B, Array>); // error function foo1b(x: any) { } function foo1c(x: C); function foo1c(x: C); // error function foo1c(x: any) { } function foo2(x: I); function foo2(x: I); // error function foo2(x: any) { } function foo3(x: typeof a); function foo3(x: typeof a); // error function foo3(x: any) { } function foo4(x: typeof b); function foo4(x: typeof b); // error function foo4(x: any) { } function foo5c(x: C); function foo5c(x: D); // ok function foo5c(x: any) { } function foo6c(x: C); function foo6c(x: D); // ok function foo6c(x: any) { } function foo8(x: B, Array>); function foo8(x: I); // ok function foo8(x: any) { } function foo9(x: B, Array>); function foo9(x: C); // error, types are structurally equal function foo9(x: any) { } function foo10(x: B, Array>); function foo10(x: typeof a); // ok function foo10(x: any) { } function foo11(x: B, Array>); function foo11(x: typeof b); // ok function foo11(x: any) { } function foo12(x: I); function foo12(x: C); // ok function foo12(x: any) { } function foo12b(x: I2); function foo12b(x: C); // ok function foo12b(x: any) { } function foo13(x: I); function foo13(x: typeof a); // ok function foo13(x: any) { } function foo14(x: I); function foo14(x: typeof b); // ok function foo14(x: any) { }