45 lines
1.4 KiB
Plaintext
45 lines
1.4 KiB
Plaintext
==== tests/cases/compiler/assignmentCompatWithOverloads.ts (4 errors) ====
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function f1(x: string): number { return null; }
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function f2(x: string): string { return null; }
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function f3(x: number): number { return null; }
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function f4(x: string): string;
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function f4(x: number): number;
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function f4(x: any): any { return undefined; }
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var g: (s1: string) => number;
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g = f1; // OK
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g = f2; // Error
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~
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!!! Type '(x: string) => string' is not assignable to type '(s1: string) => number':
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!!! Type 'string' is not assignable to type 'number'.
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g = f3; // Error
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~
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!!! Type '(x: number) => number' is not assignable to type '(s1: string) => number':
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!!! Types of parameters 'x' and 's1' are incompatible:
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!!! Type 'number' is not assignable to type 'string'.
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g = f4; // Error
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~
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!!! Type '{ (x: string): string; (x: number): number; }' is not assignable to type '(s1: string) => number':
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!!! Type 'string' is not assignable to type 'number'.
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class C {
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constructor(x: string);
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constructor(x: any) {}
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}
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var d: new(x: number) => void;
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d = C; // Error
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~
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!!! Type 'typeof C' is not assignable to type 'new (x: number) => void':
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!!! Types of parameters 'x' and 'x' are incompatible:
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!!! Type 'string' is not assignable to type 'number'. |