39 lines
1.9 KiB
Plaintext
39 lines
1.9 KiB
Plaintext
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==== tests/cases/conformance/types/typeParameters/typeParameterLists/typeParameterDirectlyConstrainedToItself.ts (10 errors) ====
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// all of the below should be errors
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class C<T extends T> { }
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~~~~~~~~~~~
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!!! Constraint of a type parameter cannot reference any type parameter from the same type parameter list.
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class C2<T, U extends U> { }
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~~~~~~~~~~~
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!!! Constraint of a type parameter cannot reference any type parameter from the same type parameter list.
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interface I<T extends T> { }
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~~~~~~~~~~~
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!!! Constraint of a type parameter cannot reference any type parameter from the same type parameter list.
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interface I2<T, U extends U> { }
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~~~~~~~~~~~
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!!! Constraint of a type parameter cannot reference any type parameter from the same type parameter list.
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function f<T extends T>() { }
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~~~~~~~~~~~
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!!! Constraint of a type parameter cannot reference any type parameter from the same type parameter list.
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function f2<T, U extends U>() { }
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~~~~~~~~~~~
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!!! Constraint of a type parameter cannot reference any type parameter from the same type parameter list.
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var a: {
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<T extends T>(): void;
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~~~~~~~~~~~
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!!! Constraint of a type parameter cannot reference any type parameter from the same type parameter list.
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<T, U extends U>(): void;
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~~~~~~~~~~~
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!!! Constraint of a type parameter cannot reference any type parameter from the same type parameter list.
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}
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var b = <T extends T>() => { }
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~~~~~~~~~~~
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!!! Constraint of a type parameter cannot reference any type parameter from the same type parameter list.
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var b2 = <T, U extends U>() => { }
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~~~~~~~~~~~
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!!! Constraint of a type parameter cannot reference any type parameter from the same type parameter list.
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