122 lines
5.7 KiB
Plaintext
122 lines
5.7 KiB
Plaintext
tests/cases/conformance/interfaces/interfaceDeclarations/interfaceWithMultipleBaseTypes.ts(21,11): error TS2430: Interface 'Derived2' incorrectly extends interface 'Base2'.
|
|
Types of property 'x' are incompatible.
|
|
Type '{ a: string; b: number; }' is not assignable to type '{ b: string; }'.
|
|
Types of property 'b' are incompatible.
|
|
Type 'number' is not assignable to type 'string'.
|
|
tests/cases/conformance/interfaces/interfaceDeclarations/interfaceWithMultipleBaseTypes.ts(52,15): error TS2320: Interface 'Derived3<T>' cannot simultaneously extend types 'Base1<number>' and 'Base2<number>'.
|
|
Named property 'x' of types 'Base1<number>' and 'Base2<number>' are not identical.
|
|
tests/cases/conformance/interfaces/interfaceDeclarations/interfaceWithMultipleBaseTypes.ts(54,15): error TS2430: Interface 'Derived4<T>' incorrectly extends interface 'Base1<number>'.
|
|
Types of property 'x' are incompatible.
|
|
Type '{ a: T; b: T; }' is not assignable to type '{ a: number; }'.
|
|
Types of property 'a' are incompatible.
|
|
Type 'T' is not assignable to type 'number'.
|
|
tests/cases/conformance/interfaces/interfaceDeclarations/interfaceWithMultipleBaseTypes.ts(54,15): error TS2430: Interface 'Derived4<T>' incorrectly extends interface 'Base2<number>'.
|
|
Types of property 'x' are incompatible.
|
|
Type '{ a: T; b: T; }' is not assignable to type '{ b: number; }'.
|
|
Types of property 'b' are incompatible.
|
|
Type 'T' is not assignable to type 'number'.
|
|
tests/cases/conformance/interfaces/interfaceDeclarations/interfaceWithMultipleBaseTypes.ts(60,15): error TS2430: Interface 'Derived5<T>' incorrectly extends interface 'Base1<T>'.
|
|
Types of property 'x' are incompatible.
|
|
Type 'T' is not assignable to type '{ a: T; }'.
|
|
Property 'a' is missing in type '{}'.
|
|
tests/cases/conformance/interfaces/interfaceDeclarations/interfaceWithMultipleBaseTypes.ts(60,15): error TS2430: Interface 'Derived5<T>' incorrectly extends interface 'Base2<T>'.
|
|
Types of property 'x' are incompatible.
|
|
Type 'T' is not assignable to type '{ b: T; }'.
|
|
Property 'b' is missing in type '{}'.
|
|
|
|
|
|
==== tests/cases/conformance/interfaces/interfaceDeclarations/interfaceWithMultipleBaseTypes.ts (6 errors) ====
|
|
// an interface may have multiple bases with properties of the same name as long as the interface's implementation satisfies all base type versions
|
|
|
|
interface Base1 {
|
|
x: {
|
|
a: string;
|
|
}
|
|
}
|
|
|
|
interface Base2 {
|
|
x: {
|
|
b: string;
|
|
}
|
|
}
|
|
|
|
interface Derived extends Base1, Base2 {
|
|
x: {
|
|
a: string; b: string;
|
|
}
|
|
}
|
|
|
|
interface Derived2 extends Base1, Base2 { // error
|
|
~~~~~~~~
|
|
!!! error TS2430: Interface 'Derived2' incorrectly extends interface 'Base2'.
|
|
!!! error TS2430: Types of property 'x' are incompatible.
|
|
!!! error TS2430: Type '{ a: string; b: number; }' is not assignable to type '{ b: string; }'.
|
|
!!! error TS2430: Types of property 'b' are incompatible.
|
|
!!! error TS2430: Type 'number' is not assignable to type 'string'.
|
|
x: {
|
|
a: string; b: number;
|
|
}
|
|
}
|
|
|
|
module Generic {
|
|
interface Base1<T> {
|
|
x: {
|
|
a: T;
|
|
}
|
|
}
|
|
|
|
interface Base2<T> {
|
|
x: {
|
|
b: T;
|
|
}
|
|
}
|
|
|
|
interface Derived<T> extends Base1<string>, Base2<number> {
|
|
x: {
|
|
a: string; b: number;
|
|
}
|
|
}
|
|
|
|
interface Derived2<T, U> extends Base1<T>, Base2<U> {
|
|
x: {
|
|
a: T; b: U;
|
|
}
|
|
}
|
|
|
|
interface Derived3<T> extends Base1<number>, Base2<number> { } // error
|
|
~~~~~~~~
|
|
!!! error TS2320: Interface 'Derived3<T>' cannot simultaneously extend types 'Base1<number>' and 'Base2<number>'.
|
|
!!! error TS2320: Named property 'x' of types 'Base1<number>' and 'Base2<number>' are not identical.
|
|
|
|
interface Derived4<T> extends Base1<number>, Base2<number> { // error
|
|
~~~~~~~~
|
|
!!! error TS2430: Interface 'Derived4<T>' incorrectly extends interface 'Base1<number>'.
|
|
!!! error TS2430: Types of property 'x' are incompatible.
|
|
!!! error TS2430: Type '{ a: T; b: T; }' is not assignable to type '{ a: number; }'.
|
|
!!! error TS2430: Types of property 'a' are incompatible.
|
|
!!! error TS2430: Type 'T' is not assignable to type 'number'.
|
|
~~~~~~~~
|
|
!!! error TS2430: Interface 'Derived4<T>' incorrectly extends interface 'Base2<number>'.
|
|
!!! error TS2430: Types of property 'x' are incompatible.
|
|
!!! error TS2430: Type '{ a: T; b: T; }' is not assignable to type '{ b: number; }'.
|
|
!!! error TS2430: Types of property 'b' are incompatible.
|
|
!!! error TS2430: Type 'T' is not assignable to type 'number'.
|
|
x: {
|
|
a: T; b: T;
|
|
}
|
|
}
|
|
|
|
interface Derived5<T> extends Base1<T>, Base2<T> { // error
|
|
~~~~~~~~
|
|
!!! error TS2430: Interface 'Derived5<T>' incorrectly extends interface 'Base1<T>'.
|
|
!!! error TS2430: Types of property 'x' are incompatible.
|
|
!!! error TS2430: Type 'T' is not assignable to type '{ a: T; }'.
|
|
!!! error TS2430: Property 'a' is missing in type '{}'.
|
|
~~~~~~~~
|
|
!!! error TS2430: Interface 'Derived5<T>' incorrectly extends interface 'Base2<T>'.
|
|
!!! error TS2430: Types of property 'x' are incompatible.
|
|
!!! error TS2430: Type 'T' is not assignable to type '{ b: T; }'.
|
|
!!! error TS2430: Property 'b' is missing in type '{}'.
|
|
x: T;
|
|
}
|
|
} |