115 lines
5 KiB
Plaintext
115 lines
5 KiB
Plaintext
==== tests/cases/conformance/types/typeRelationships/assignmentCompatibility/assignmentCompatWithCallSignatures4.ts (2 errors) ====
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// These are mostly permitted with the current loose rules. All ok unless otherwise noted.
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module Errors {
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class Base { foo: string; }
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class Derived extends Base { bar: string; }
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class Derived2 extends Derived { baz: string; }
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class OtherDerived extends Base { bing: string; }
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module WithNonGenericSignaturesInBaseType {
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// target type with non-generic call signatures
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var a2: (x: number) => string[];
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var a7: (x: (arg: Base) => Derived) => (r: Base) => Derived2;
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var a8: (x: (arg: Base) => Derived, y: (arg2: Base) => Derived) => (r: Base) => Derived;
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var a10: (...x: Base[]) => Base;
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var a11: (x: { foo: string }, y: { foo: string; bar: string }) => Base;
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var a12: (x: Array<Base>, y: Array<Derived2>) => Array<Derived>;
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var a14: {
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(x: number): number[];
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(x: string): string[];
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};
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var a15: (x: { a: string; b: number }) => number;
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var a16: {
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(x: {
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(a: number): number;
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(a?: number): number;
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}): number[];
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(x: {
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(a: boolean): boolean;
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(a?: boolean): boolean;
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}): boolean[];
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};
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var a17: {
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(x: {
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<T extends Derived>(a: T): T;
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<T extends Base>(a: T): T;
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}): any[];
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(x: {
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<T extends Derived2>(a: T): T;
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<T extends Base>(a: T): T;
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}): any[];
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};
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var b2: <T, U>(x: T) => U[];
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a2 = b2;
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b2 = a2;
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var b7: <T extends Base, U extends Derived, V extends Derived2>(x: (arg: T) => U) => (r: T) => V;
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a7 = b7;
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b7 = a7;
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var b8: <T extends Base, U extends Derived>(x: (arg: T) => U, y: (arg2: { foo: number; }) => U) => (r: T) => U;
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a8 = b8; // error, { foo: number } and Base are incompatible
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~~
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!!! Type '<T extends Base, U extends Derived>(x: (arg: T) => U, y: (arg2: { foo: number; }) => U) => (r: T) => U' is not assignable to type '(x: (arg: Base) => Derived, y: (arg2: Base) => Derived) => (r: Base) => Derived':
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!!! Types of parameters 'y' and 'y' are incompatible:
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!!! Type '(arg2: { foo: number; }) => any' is not assignable to type '(arg2: Base) => Derived':
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!!! Types of parameters 'arg2' and 'arg2' are incompatible:
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!!! Type '{ foo: number; }' is not assignable to type 'Base':
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!!! Types of property 'foo' are incompatible:
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!!! Type 'number' is not assignable to type 'string'.
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b8 = a8; // error, { foo: number } and Base are incompatible
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~~
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!!! Type '(x: (arg: Base) => Derived, y: (arg2: Base) => Derived) => (r: Base) => Derived' is not assignable to type '<T extends Base, U extends Derived>(x: (arg: T) => U, y: (arg2: { foo: number; }) => U) => (r: T) => U':
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!!! Types of parameters 'y' and 'y' are incompatible:
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!!! Type '(arg2: Base) => Derived' is not assignable to type '(arg2: { foo: number; }) => any':
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!!! Types of parameters 'arg2' and 'arg2' are incompatible:
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!!! Type 'Base' is not assignable to type '{ foo: number; }':
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!!! Types of property 'foo' are incompatible:
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!!! Type 'string' is not assignable to type 'number'.
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var b10: <T extends Derived>(...x: T[]) => T;
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a10 = b10;
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b10 = a10;
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var b11: <T extends Derived>(x: T, y: T) => T;
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a11 = b11;
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b11 = a11;
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var b12: <T extends Array<Derived2>>(x: Array<Base>, y: Array<Base>) => T;
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a12 = b12;
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b12 = a12;
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var b15: <T>(x: { a: T; b: T }) => T;
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a15 = b15;
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b15 = a15;
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var b15a: <T extends Base>(x: { a: T; b: T }) => number;
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a15 = b15a;
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b15a = a15;
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var b16: <T>(x: (a: T) => T) => T[];
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a16 = b16;
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b16 = a16;
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var b17: <T>(x: (a: T) => T) => any[];
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a17 = b17;
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b17 = a17;
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}
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module WithGenericSignaturesInBaseType {
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// target type has generic call signature
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var a2: <T>(x: T) => T[];
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var b2: <T>(x: T) => string[];
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a2 = b2;
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b2 = a2;
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// target type has generic call signature
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var a3: <T>(x: T) => string[];
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var b3: <T>(x: T) => T[];
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a3 = b3;
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b3 = a3;
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}
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} |