43 lines
1.9 KiB
Plaintext
43 lines
1.9 KiB
Plaintext
tests/cases/compiler/interfacePropertiesWithSameName2.ts(10,11): error TS2320: Interface 'MoverShaker' cannot simultaneously extend types 'Mover' and 'Shaker'.
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Named property 'getStatus' of types 'Mover' and 'Shaker' are not identical.
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tests/cases/compiler/interfacePropertiesWithSameName2.ts(26,11): error TS2320: Interface 'MoverShaker2' cannot simultaneously extend types 'Mover' and 'Shaker'.
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Named property 'getStatus' of types 'Mover' and 'Shaker' are not identical.
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==== tests/cases/compiler/interfacePropertiesWithSameName2.ts (2 errors) ====
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interface Mover {
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move(): void;
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getStatus(): { speed: number; };
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}
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interface Shaker {
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shake(): void;
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getStatus(): { frequency: number; };
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}
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interface MoverShaker extends Mover, Shaker {
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~~~~~~~~~~~
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!!! error TS2320: Interface 'MoverShaker' cannot simultaneously extend types 'Mover' and 'Shaker'.
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!!! error TS2320: Named property 'getStatus' of types 'Mover' and 'Shaker' are not identical.
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}
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// Inside a module
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declare module MoversAndShakers {
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export class Mover {
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move(): void;
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getStatus(): { speed: number; };
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}
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export interface Shaker {
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shake(): void;
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getStatus(): { frequency: number; };
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}
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}
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interface MoverShaker2 extends MoversAndShakers.Mover, MoversAndShakers.Shaker { } // error
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~~~~~~~~~~~~
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!!! error TS2320: Interface 'MoverShaker2' cannot simultaneously extend types 'Mover' and 'Shaker'.
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!!! error TS2320: Named property 'getStatus' of types 'Mover' and 'Shaker' are not identical.
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interface MoverShaker3 extends MoversAndShakers.Mover, MoversAndShakers.Shaker {
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getStatus(): { speed: number; frequency: number; }; // ok because this getStatus overrides the conflicting ones above
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} |