0d284e6c26
* Add support for abstract constructor types * Add backwards-compatible overloads for creating/updating constructor types * Reverting use of 'abstract' in lib/es5.d.ts due to eslint issues * Update baseline due to reverting lib * Add error for failing to mark an mixin class as abstract * Fix declaration/quick info for abstract construct signatures
45 lines
1.7 KiB
Plaintext
45 lines
1.7 KiB
Plaintext
=== tests/cases/conformance/classes/mixinAbstractClassesReturnTypeInference.ts ===
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interface Mixin1 {
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mixinMethod(): void;
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>mixinMethod : () => void
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}
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abstract class AbstractBase {
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>AbstractBase : AbstractBase
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abstract abstractBaseMethod(): void;
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>abstractBaseMethod : () => void
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}
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function Mixin2<TBase extends abstract new (...args: any[]) => any>(baseClass: TBase) {
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>Mixin2 : <TBase extends abstract new (...args: any[]) => any>(baseClass: TBase) => ((abstract new (...args: any[]) => MixinClass) & { prototype: Mixin2<any>.MixinClass; staticMixinMethod(): void; }) & TBase
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>args : any[]
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>baseClass : TBase
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// must be `abstract` because we cannot know *all* of the possible abstract members that need to be
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// implemented for this to be concrete.
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abstract class MixinClass extends baseClass implements Mixin1 {
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>MixinClass : MixinClass
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>baseClass : TBase
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mixinMethod(): void {}
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>mixinMethod : () => void
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static staticMixinMethod(): void {}
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>staticMixinMethod : () => void
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}
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return MixinClass;
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>MixinClass : ((abstract new (...args: any[]) => MixinClass) & { prototype: Mixin2<any>.MixinClass; staticMixinMethod(): void; }) & TBase
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}
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class DerivedFromAbstract2 extends Mixin2(AbstractBase) {
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>DerivedFromAbstract2 : DerivedFromAbstract2
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>Mixin2(AbstractBase) : Mixin2<typeof AbstractBase>.MixinClass & AbstractBase
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>Mixin2 : <TBase extends abstract new (...args: any[]) => any>(baseClass: TBase) => ((abstract new (...args: any[]) => MixinClass) & { prototype: Mixin2<any>.MixinClass; staticMixinMethod(): void; }) & TBase
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>AbstractBase : typeof AbstractBase
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abstractBaseMethod() {}
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>abstractBaseMethod : () => void
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}
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