27 lines
1.2 KiB
Plaintext
27 lines
1.2 KiB
Plaintext
tests/cases/conformance/classes/classDeclarations/classHeritageSpecification/classIsSubtypeOfBaseType.ts(11,7): error TS2415: Class 'Derived2' incorrectly extends base class 'Base<{ bar: string; }>'.
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Types of property 'foo' are incompatible.
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Type '{ bar?: string; }' is not assignable to type '{ bar: string; }'.
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Property 'bar' is optional in type '{ bar?: string; }' but required in type '{ bar: string; }'.
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==== tests/cases/conformance/classes/classDeclarations/classHeritageSpecification/classIsSubtypeOfBaseType.ts (1 errors) ====
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class Base<T> {
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foo: T;
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}
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class Derived extends Base<{ bar: string; }> {
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foo: {
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bar: string; baz: number; // ok
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}
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}
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class Derived2 extends Base<{ bar: string; }> {
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~~~~~~~~
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!!! error TS2415: Class 'Derived2' incorrectly extends base class 'Base<{ bar: string; }>'.
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!!! error TS2415: Types of property 'foo' are incompatible.
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!!! error TS2415: Type '{ bar?: string; }' is not assignable to type '{ bar: string; }'.
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!!! error TS2415: Property 'bar' is optional in type '{ bar?: string; }' but required in type '{ bar: string; }'.
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foo: {
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bar?: string; // error
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}
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} |