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tests/cases/compiler/assignmentCompatWithOverloads.ts(17,1): error TS2322: Type '(x: string) => string' is not assignable to type '(s1: string) => number'.
Type 'string' is not assignable to type 'number'.
tests/cases/compiler/assignmentCompatWithOverloads.ts(19,1): error TS2322: Type '(x: number) => number' is not assignable to type '(s1: string) => number'.
Types of parameters 'x' and 's1' are incompatible.
Type 'string' is not assignable to type 'number'.
tests/cases/compiler/assignmentCompatWithOverloads.ts(21,1): error TS2322: Type '{ (x: string): string; (x: number): number; }' is not assignable to type '(s1: string) => number'.
Type 'string' is not assignable to type 'number'.
tests/cases/compiler/assignmentCompatWithOverloads.ts(30,1): error TS2322: Type 'typeof C' is not assignable to type 'new (x: number) => void'.
Types of construct signatures are incompatible.
Type 'new (x: string) => C' is not assignable to type 'new (x: number) => void'.
Types of parameters 'x' and 'x' are incompatible.
Type 'number' is not assignable to type 'string'.
==== tests/cases/compiler/assignmentCompatWithOverloads.ts (4 errors) ====
function f1(x: string): number { return null; }
function f2(x: string): string { return null; }
function f3(x: number): number { return null; }
function f4(x: string): string;
function f4(x: number): number;
function f4(x: any): any { return undefined; }
var g: (s1: string) => number;
g = f1; // OK
g = f2; // Error
~
!!! error TS2322: Type '(x: string) => string' is not assignable to type '(s1: string) => number'.
!!! error TS2322: Type 'string' is not assignable to type 'number'.
g = f3; // Error
~
!!! error TS2322: Type '(x: number) => number' is not assignable to type '(s1: string) => number'.
!!! error TS2322: Types of parameters 'x' and 's1' are incompatible.
!!! error TS2322: Type 'string' is not assignable to type 'number'.
g = f4; // Error
~
!!! error TS2322: Type '{ (x: string): string; (x: number): number; }' is not assignable to type '(s1: string) => number'.
!!! error TS2322: Type 'string' is not assignable to type 'number'.
class C {
constructor(x: string);
constructor(x: any) {}
}
var d: new(x: number) => void;
d = C; // Error
~
!!! error TS2322: Type 'typeof C' is not assignable to type 'new (x: number) => void'.
!!! error TS2322: Types of construct signatures are incompatible.
!!! error TS2322: Type 'new (x: string) => C' is not assignable to type 'new (x: number) => void'.
!!! error TS2322: Types of parameters 'x' and 'x' are incompatible.
!!! error TS2322: Type 'number' is not assignable to type 'string'.
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