128 lines
3.8 KiB
TypeScript
128 lines
3.8 KiB
TypeScript
//// [objectTypesIdentityWithGenericConstructSignaturesDifferingByConstraints2.ts]
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// Two call or construct signatures are considered identical when they have the same number of type parameters and, considering those
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// parameters pairwise identical, have identical type parameter constraints, identical number of parameters with identical kind(required,
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// optional or rest) and types, and identical return types.
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class B<T extends U, U extends Array<number>> {
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constructor(x: T, y: U) { return null; }
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}
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class C<T extends U, U extends String> {
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constructor(x: T, y: U) { return null; }
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}
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class D<T extends U, U extends Number> {
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constructor(x: T, y: U) { return null; }
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}
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interface I<T extends U, U extends Number> {
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new(x: T, y: U): string;
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}
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interface I2 {
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new<T extends U, U extends Boolean>(x: T, y: U): string;
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}
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var a: { new<T extends U, U extends Array<string>>(x: T, y: U): string }
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var b = { new<T extends U, U extends RegExp>(x: T, y: U) { return ''; } }; // not a construct signature, function called new
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function foo1b(x: B<Array<number>, Array<number>>);
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function foo1b(x: B<Array<number>, Array<number>>); // error
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function foo1b(x: any) { }
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function foo1c(x: C<String, String>);
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function foo1c(x: C<String, String>); // error
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function foo1c(x: any) { }
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function foo2(x: I<Number, Number>);
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function foo2(x: I<Number, Number>); // error
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function foo2(x: any) { }
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function foo3(x: typeof a);
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function foo3(x: typeof a); // error
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function foo3(x: any) { }
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function foo4(x: typeof b);
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function foo4(x: typeof b); // error
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function foo4(x: any) { }
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function foo5c(x: C<String, String>);
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function foo5c(x: D<Number, Number>); // ok
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function foo5c(x: any) { }
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function foo6c(x: C<String, String>);
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function foo6c(x: D<any, Number>); // ok
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function foo6c(x: any) { }
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function foo8(x: B<Array<number>, Array<number>>);
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function foo8(x: I<Number, Number>); // ok
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function foo8(x: any) { }
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function foo9(x: B<Array<number>, Array<number>>);
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function foo9(x: C<String, String>); // error, types are structurally equal
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function foo9(x: any) { }
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function foo10(x: B<Array<number>, Array<number>>);
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function foo10(x: typeof a); // ok
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function foo10(x: any) { }
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function foo11(x: B<Array<number>, Array<number>>);
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function foo11(x: typeof b); // ok
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function foo11(x: any) { }
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function foo12(x: I<Number, Number>);
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function foo12(x: C<String, String>); // ok
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function foo12(x: any) { }
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function foo12b(x: I2);
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function foo12b(x: C<String, String>); // ok
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function foo12b(x: any) { }
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function foo13(x: I<Number, Number>);
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function foo13(x: typeof a); // ok
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function foo13(x: any) { }
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function foo14(x: I<Number, Number>);
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function foo14(x: typeof b); // ok
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function foo14(x: any) { }
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//// [objectTypesIdentityWithGenericConstructSignaturesDifferingByConstraints2.js]
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// Two call or construct signatures are considered identical when they have the same number of type parameters and, considering those
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// parameters pairwise identical, have identical type parameter constraints, identical number of parameters with identical kind(required,
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// optional or rest) and types, and identical return types.
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var B = (function () {
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function B(x, y) {
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return null;
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}
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return B;
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})();
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var C = (function () {
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function C(x, y) {
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return null;
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}
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return C;
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})();
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var D = (function () {
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function D(x, y) {
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return null;
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}
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return D;
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})();
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var a;
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var b = { new: function (x, y) { return ''; } }; // not a construct signature, function called new
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function foo1b(x) { }
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function foo1c(x) { }
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function foo2(x) { }
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function foo3(x) { }
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function foo4(x) { }
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function foo5c(x) { }
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function foo6c(x) { }
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function foo8(x) { }
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function foo9(x) { }
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function foo10(x) { }
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function foo11(x) { }
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function foo12(x) { }
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function foo12b(x) { }
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function foo13(x) { }
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function foo14(x) { }
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