127 lines
6.3 KiB
Plaintext
127 lines
6.3 KiB
Plaintext
tests/cases/conformance/expressions/functionCalls/overloadResolution.ts(27,5): error TS2345: Argument of type '{}' is not assignable to parameter of type 'number'.
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tests/cases/conformance/expressions/functionCalls/overloadResolution.ts(41,11): error TS2345: Argument of type 'string' is not assignable to parameter of type 'number'.
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tests/cases/conformance/expressions/functionCalls/overloadResolution.ts(63,1): error TS2346: Supplied parameters do not match any signature of call target.
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tests/cases/conformance/expressions/functionCalls/overloadResolution.ts(70,21): error TS2345: Argument of type 'number' is not assignable to parameter of type 'string'.
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tests/cases/conformance/expressions/functionCalls/overloadResolution.ts(71,21): error TS2345: Argument of type 'string' is not assignable to parameter of type 'number'.
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tests/cases/conformance/expressions/functionCalls/overloadResolution.ts(81,5): error TS2344: Type 'boolean' does not satisfy the constraint 'number'.
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tests/cases/conformance/expressions/functionCalls/overloadResolution.ts(84,5): error TS2345: Argument of type 'boolean' is not assignable to parameter of type 'number'.
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tests/cases/conformance/expressions/functionCalls/overloadResolution.ts(85,11): error TS2345: Argument of type 'boolean' is not assignable to parameter of type 'string'.
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tests/cases/conformance/expressions/functionCalls/overloadResolution.ts(91,5): error TS2403: Subsequent variable declarations must have the same type. Variable 'n' must be of type 'number', but here has type 'string'.
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tests/cases/conformance/expressions/functionCalls/overloadResolution.ts(91,22): error TS2339: Property 'toFixed' does not exist on type 'string'.
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==== tests/cases/conformance/expressions/functionCalls/overloadResolution.ts (10 errors) ====
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class SomeBase {
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private n;
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public s: string;
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}
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class SomeDerived1 extends SomeBase {
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private m;
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}
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class SomeDerived2 extends SomeBase {
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private m;
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}
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class SomeDerived3 extends SomeBase {
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private m;
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}
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// Ambiguous call picks the first overload in declaration order
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function fn1(s: string): string;
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function fn1(s: number): number;
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function fn1() { return null; }
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var s = fn1(undefined);
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var s: string;
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// No candidate overloads found
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fn1({}); // Error
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~~
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!!! error TS2345: Argument of type '{}' is not assignable to parameter of type 'number'.
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// Generic and non - generic overload where generic overload is the only candidate when called with type arguments
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function fn2(s: string, n: number): number;
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function fn2<T>(n: number, t: T): T;
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function fn2() { return undefined; }
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var d = fn2<Date>(0, undefined);
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var d: Date;
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// Generic and non - generic overload where generic overload is the only candidate when called without type arguments
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var s = fn2(0, '');
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// Generic and non - generic overload where non - generic overload is the only candidate when called with type arguments
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fn2<Date>('', 0); // Error
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~~
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!!! error TS2345: Argument of type 'string' is not assignable to parameter of type 'number'.
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// Generic and non - generic overload where non - generic overload is the only candidate when called without type arguments
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fn2('', 0); // OK
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// Generic overloads with differing arity called without type arguments
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function fn3<T>(n: T): string;
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function fn3<T, U>(s: string, t: T, u: U): U;
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function fn3<T, U, V>(v: V, u: U, t: T): number;
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function fn3() { return null; }
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var s = fn3(3);
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var s = fn3('', 3, '');
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var n = fn3(5, 5, 5);
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var n: number;
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// Generic overloads with differing arity called with type arguments matching each overload type parameter count
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var s = fn3<number>(4);
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var s = fn3<string, string>('', '', '');
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var n = fn3<number, string, string>('', '', 3);
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// Generic overloads with differing arity called with type argument count that doesn't match any overload
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fn3<number, number, number, number>(); // Error
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~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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!!! error TS2346: Supplied parameters do not match any signature of call target.
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// Generic overloads with constraints called with type arguments that satisfy the constraints
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function fn4<T extends string, U extends number>(n: T, m: U);
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function fn4<T extends number, U extends string>(n: T, m: U);
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function fn4() { }
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fn4<string, number>('', 3);
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fn4<string, number>(3, ''); // Error
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~
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!!! error TS2345: Argument of type 'number' is not assignable to parameter of type 'string'.
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fn4<number, string>('', 3); // Error
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~~
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!!! error TS2345: Argument of type 'string' is not assignable to parameter of type 'number'.
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fn4<number, string>(3, '');
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// Generic overloads with constraints called without type arguments but with types that satisfy the constraints
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fn4('', 3);
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fn4(3, '');
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fn4(3, undefined);
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fn4('', null);
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// Generic overloads with constraints called with type arguments that do not satisfy the constraints
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fn4<boolean, Date>(null, null); // Error
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~~~~~~~
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!!! error TS2344: Type 'boolean' does not satisfy the constraint 'number'.
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// Generic overloads with constraints called without type arguments but with types that do not satisfy the constraints
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fn4(true, null); // Error
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~~~~
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!!! error TS2345: Argument of type 'boolean' is not assignable to parameter of type 'number'.
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fn4(null, true); // Error
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~~~~
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!!! error TS2345: Argument of type 'boolean' is not assignable to parameter of type 'string'.
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// Non - generic overloads where contextual typing of function arguments has errors
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function fn5(f: (n: string) => void): string;
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function fn5(f: (n: number) => void): number;
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function fn5() { return undefined; }
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var n = fn5((n) => n.toFixed());
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~
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!!! error TS2403: Subsequent variable declarations must have the same type. Variable 'n' must be of type 'number', but here has type 'string'.
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~~~~~~~
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!!! error TS2339: Property 'toFixed' does not exist on type 'string'.
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var s = fn5((n) => n.substr(0));
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