swc/crates/swc_ecma_parser/tests/tsc/subtypingWithConstructSignatures6.ts

50 lines
1.3 KiB
TypeScript

// checking subtype relations for function types as it relates to contextual signature instantiation
// same as subtypingWithConstructSignatures4 but using class type parameters instead of generic signatures
// all are errors
class Base { foo: string; }
class Derived extends Base { bar: string; }
class Derived2 extends Derived { baz: string; }
class OtherDerived extends Base { bing: string; }
interface A { // T
// M's
a: new <T>(x: T) => T[];
a2: new <T>(x: T) => string[];
a3: new <T>(x: T) => void;
a4: new <T, U>(x: T, y: U) => string;
a5: new <T, U>(x: (arg: T) => U) => T;
a6: new <T extends Base>(x: (arg: T) => Derived) => T;
a11: new <T>(x: { foo: T }, y: { foo: T; bar: T }) => Base;
a15: new <T>(x: { a: T; b: T }) => T[];
a16: new <T extends Base>(x: { a: T; b: T }) => T[];
}
// S's
interface I<T> extends A {
a: new (x: T) => T[];
}
interface I2<T> extends A {
a2: new (x: T) => string[];
}
interface I3<T> extends A {
a3: new (x: T) => T;
}
interface I4<T> extends A {
a4: new <U>(x: T, y: U) => string;
}
interface I5<T> extends A {
a5: new <U>(x: (arg: T) => U) => T;
}
interface I7<T> extends A {
a11: new <U>(x: { foo: T }, y: { foo: U; bar: U }) => Base;
}
interface I9<T> extends A {
a16: new (x: { a: T; b: T }) => T[];
}