68 lines
3.3 KiB
TypeScript
68 lines
3.3 KiB
TypeScript
//// [genericCallWithGenericSignatureArguments3.ts]
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// When a function expression is inferentially typed (section 4.9.3) and a type assigned to a parameter in that expression references type parameters for which inferences are being made,
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// the corresponding inferred type arguments to become fixed and no further candidate inferences are made for them.
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function foo<T>(x: T, a: (x: T) => T, b: (x: T) => T) {
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var r: (x: T) => T;
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return r;
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}
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var r1 = foo('', (x: string) => '', (x: Object) => null); // any => any
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var r1ii = foo('', (x) => '', (x) => null); // string => string
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var r2 = foo('', (x: string) => '', (x: Object) => ''); // string => string
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var r3 = foo(null, (x: Object) => '', (x: string) => ''); // Object => Object
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var r4 = foo(null, (x) => '', (x) => ''); // any => any
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var r5 = foo(new Object(), (x) => '', (x) => ''); // Object => Object
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enum E { A }
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enum F { A }
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var r6 = foo(E.A, (x: number) => E.A, (x: F) => F.A); // number => number
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function foo2<T, U>(x: T, a: (x: T) => U, b: (x: T) => U) {
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var r: (x: T) => U;
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return r;
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}
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var r8 = foo2('', (x) => '', (x) => null); // string => string
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var r9 = foo2(null, (x) => '', (x) => ''); // any => any
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var r10 = foo2(null, (x: Object) => '', (x: string) => ''); // Object => Object
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var x: (a: string) => boolean;
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var r11 = foo2(x, (a1: (y: string) => string) => (n: Object) => 1, (a2: (z: string) => string) => 2); // error
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var r12 = foo2(x, (a1: (y: string) => boolean) => (n: Object) => 1, (a2: (z: string) => boolean) => 2); // error
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//// [genericCallWithGenericSignatureArguments3.js]
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// When a function expression is inferentially typed (section 4.9.3) and a type assigned to a parameter in that expression references type parameters for which inferences are being made,
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// the corresponding inferred type arguments to become fixed and no further candidate inferences are made for them.
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function foo(x, a, b) {
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var r;
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return r;
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}
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var r1 = foo('', function (x) { return ''; }, function (x) { return null; }); // any => any
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var r1ii = foo('', function (x) { return ''; }, function (x) { return null; }); // string => string
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var r2 = foo('', function (x) { return ''; }, function (x) { return ''; }); // string => string
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var r3 = foo(null, function (x) { return ''; }, function (x) { return ''; }); // Object => Object
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var r4 = foo(null, function (x) { return ''; }, function (x) { return ''; }); // any => any
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var r5 = foo(new Object(), function (x) { return ''; }, function (x) { return ''; }); // Object => Object
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var E;
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(function (E) {
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E[E["A"] = 0] = "A";
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})(E || (E = {}));
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var F;
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(function (F) {
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F[F["A"] = 0] = "A";
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})(F || (F = {}));
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var r6 = foo(E.A, function (x) { return E.A; }, function (x) { return F.A; }); // number => number
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function foo2(x, a, b) {
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var r;
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return r;
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}
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var r8 = foo2('', function (x) { return ''; }, function (x) { return null; }); // string => string
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var r9 = foo2(null, function (x) { return ''; }, function (x) { return ''; }); // any => any
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var r10 = foo2(null, function (x) { return ''; }, function (x) { return ''; }); // Object => Object
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var x;
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var r11 = foo2(x, function (a1) { return function (n) { return 1; }; }, function (a2) { return 2; }); // error
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var r12 = foo2(x, function (a1) { return function (n) { return 1; }; }, function (a2) { return 2; }); // error
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