2014-10-28 08:28:59 +01:00
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tests/cases/conformance/interfaces/interfaceDeclarations/interfaceWithMultipleBaseTypes.ts(21,11): error TS2430: Interface 'Derived2' incorrectly extends interface 'Base2'.
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Types of property 'x' are incompatible.
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Type '{ a: string; b: number; }' is not assignable to type '{ b: string; }'.
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Types of property 'b' are incompatible.
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2014-09-12 22:35:07 +02:00
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Type 'number' is not assignable to type 'string'.
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2014-10-28 08:28:59 +01:00
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tests/cases/conformance/interfaces/interfaceDeclarations/interfaceWithMultipleBaseTypes.ts(52,15): error TS2320: Interface 'Derived3<T>' cannot simultaneously extend types 'Base1<number>' and 'Base2<number>'.
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2015-02-05 04:32:13 +01:00
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Named property 'x' of types 'Base1<number>' and 'Base2<number>' are not identical.
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2014-10-28 08:28:59 +01:00
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tests/cases/conformance/interfaces/interfaceDeclarations/interfaceWithMultipleBaseTypes.ts(54,15): error TS2430: Interface 'Derived4<T>' incorrectly extends interface 'Base1<number>'.
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Types of property 'x' are incompatible.
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Type '{ a: T; b: T; }' is not assignable to type '{ a: number; }'.
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Types of property 'a' are incompatible.
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2014-09-12 22:35:07 +02:00
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Type 'T' is not assignable to type 'number'.
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2014-10-28 08:28:59 +01:00
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tests/cases/conformance/interfaces/interfaceDeclarations/interfaceWithMultipleBaseTypes.ts(54,15): error TS2430: Interface 'Derived4<T>' incorrectly extends interface 'Base2<number>'.
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Types of property 'x' are incompatible.
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Type '{ a: T; b: T; }' is not assignable to type '{ b: number; }'.
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Types of property 'b' are incompatible.
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2014-09-12 22:35:07 +02:00
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Type 'T' is not assignable to type 'number'.
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2014-10-28 08:28:59 +01:00
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tests/cases/conformance/interfaces/interfaceDeclarations/interfaceWithMultipleBaseTypes.ts(60,15): error TS2430: Interface 'Derived5<T>' incorrectly extends interface 'Base1<T>'.
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Types of property 'x' are incompatible.
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Type 'T' is not assignable to type '{ a: T; }'.
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2014-09-12 22:35:07 +02:00
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Property 'a' is missing in type '{}'.
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2014-10-28 08:28:59 +01:00
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tests/cases/conformance/interfaces/interfaceDeclarations/interfaceWithMultipleBaseTypes.ts(60,15): error TS2430: Interface 'Derived5<T>' incorrectly extends interface 'Base2<T>'.
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Types of property 'x' are incompatible.
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Type 'T' is not assignable to type '{ b: T; }'.
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2014-09-12 22:35:07 +02:00
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Property 'b' is missing in type '{}'.
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2014-07-13 01:04:16 +02:00
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==== tests/cases/conformance/interfaces/interfaceDeclarations/interfaceWithMultipleBaseTypes.ts (6 errors) ====
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// an interface may have multiple bases with properties of the same name as long as the interface's implementation satisfies all base type versions
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interface Base1 {
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x: {
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a: string;
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}
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}
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interface Base2 {
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x: {
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b: string;
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}
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}
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interface Derived extends Base1, Base2 {
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x: {
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a: string; b: string;
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}
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}
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interface Derived2 extends Base1, Base2 { // error
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~~~~~~~~
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2014-10-28 08:28:59 +01:00
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!!! error TS2430: Interface 'Derived2' incorrectly extends interface 'Base2'.
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!!! error TS2430: Types of property 'x' are incompatible.
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!!! error TS2430: Type '{ a: string; b: number; }' is not assignable to type '{ b: string; }'.
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!!! error TS2430: Types of property 'b' are incompatible.
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!!! error TS2430: Type 'number' is not assignable to type 'string'.
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2014-07-13 01:04:16 +02:00
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x: {
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a: string; b: number;
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}
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}
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module Generic {
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interface Base1<T> {
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x: {
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a: T;
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}
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}
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interface Base2<T> {
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x: {
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b: T;
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}
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}
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interface Derived<T> extends Base1<string>, Base2<number> {
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x: {
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a: string; b: number;
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}
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}
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interface Derived2<T, U> extends Base1<T>, Base2<U> {
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x: {
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a: T; b: U;
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}
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}
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interface Derived3<T> extends Base1<number>, Base2<number> { } // error
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~~~~~~~~
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2014-10-28 08:28:59 +01:00
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!!! error TS2320: Interface 'Derived3<T>' cannot simultaneously extend types 'Base1<number>' and 'Base2<number>'.
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2015-02-05 04:32:13 +01:00
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!!! error TS2320: Named property 'x' of types 'Base1<number>' and 'Base2<number>' are not identical.
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2014-07-13 01:04:16 +02:00
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interface Derived4<T> extends Base1<number>, Base2<number> { // error
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~~~~~~~~
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2014-10-28 08:28:59 +01:00
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!!! error TS2430: Interface 'Derived4<T>' incorrectly extends interface 'Base1<number>'.
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!!! error TS2430: Types of property 'x' are incompatible.
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!!! error TS2430: Type '{ a: T; b: T; }' is not assignable to type '{ a: number; }'.
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!!! error TS2430: Types of property 'a' are incompatible.
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!!! error TS2430: Type 'T' is not assignable to type 'number'.
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2014-07-13 01:04:16 +02:00
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~~~~~~~~
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2014-10-28 08:28:59 +01:00
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!!! error TS2430: Interface 'Derived4<T>' incorrectly extends interface 'Base2<number>'.
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!!! error TS2430: Types of property 'x' are incompatible.
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!!! error TS2430: Type '{ a: T; b: T; }' is not assignable to type '{ b: number; }'.
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!!! error TS2430: Types of property 'b' are incompatible.
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!!! error TS2430: Type 'T' is not assignable to type 'number'.
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2014-07-13 01:04:16 +02:00
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x: {
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a: T; b: T;
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}
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}
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interface Derived5<T> extends Base1<T>, Base2<T> { // error
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~~~~~~~~
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2014-10-28 08:28:59 +01:00
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!!! error TS2430: Interface 'Derived5<T>' incorrectly extends interface 'Base1<T>'.
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!!! error TS2430: Types of property 'x' are incompatible.
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!!! error TS2430: Type 'T' is not assignable to type '{ a: T; }'.
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!!! error TS2430: Property 'a' is missing in type '{}'.
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2014-07-13 01:04:16 +02:00
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~~~~~~~~
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2014-10-28 08:28:59 +01:00
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!!! error TS2430: Interface 'Derived5<T>' incorrectly extends interface 'Base2<T>'.
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!!! error TS2430: Types of property 'x' are incompatible.
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!!! error TS2430: Type 'T' is not assignable to type '{ b: T; }'.
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!!! error TS2430: Property 'b' is missing in type '{}'.
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2014-07-13 01:04:16 +02:00
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x: T;
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}
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}
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