// checking assignment compatibility relations for function types.
module Errors {
class Base { foo: string; }
class Derived extends Base { bar: string; }
class Derived2 extends Derived { baz: string; }
class OtherDerived extends Base { bing: string; }
module WithNonGenericSignaturesInBaseType {
// target type with non-generic call signatures
var a2: new (x: number) => string[];
var a7: new (x: (arg: Base) => Derived) => (r: Base) => Derived2;
var a8: new (x: (arg: Base) => Derived, y: (arg2: Base) => Derived) => (r: Base) => Derived;
var a10: new (...x: Base[]) => Base;
var a11: new (x: { foo: string }, y: { foo: string; bar: string }) => Base;
var a12: new (x: Array, y: Array) => Array;
var a14: {
new (x: number): number[];
new (x: string): string[];
};
var a15: new (x: { a: string; b: number }) => number;
var a16: {
new (x: {
new (a: number): number;
new (a?: number): number;
}): number[];
new (x: {
new (a: boolean): boolean;
new (a?: boolean): boolean;
}): boolean[];
};
var a17: {
new (x: {
new (a: T): T;
new (a: T): T;
}): any[];
new (x: {
new (a: T): T;
new (a: T): T;
}): any[];
};
var b2: new (x: T) => U[];
a2 = b2; // ok
b2 = a2; // ok
var b7: new (x: (arg: T) => U) => (r: T) => V;
a7 = b7; // ok
b7 = a7; // ok
var b8: new (x: (arg: T) => U, y: (arg2: { foo: number; }) => U) => (r: T) => U;
a8 = b8; // error, type mismatch
b8 = a8; // error
var b10: new (...x: T[]) => T;
a10 = b10; // ok
b10 = a10; // ok
var b11: new (x: T, y: T) => T;
a11 = b11; // ok
b11 = a11; // ok
var b12: new >(x: Array, y: Array) => T;
a12 = b12; // ok
b12 = a12; // ok
var b15: new (x: { a: T; b: T }) => T;
a15 = b15; // ok
b15 = a15; // ok
var b15a: new (x: { a: T; b: T }) => number;
a15 = b15a; // ok
b15a = a15; // ok
var b16: new (x: (a: T) => T) => T[];
a16 = b16; // error
b16 = a16; // error
var b17: new (x: (a: T) => T) => any[];
a17 = b17; // error
b17 = a17; // error
}
module WithGenericSignaturesInBaseType {
// target type has generic call signature
var a2: new (x: T) => T[];
var b2: new (x: T) => string[];
a2 = b2; // ok
b2 = a2; // ok
// target type has generic call signature
var a3: new (x: T) => string[];
var b3: new (x: T) => T[];
a3 = b3; // ok
b3 = a3; // ok
}
}