File: typeArgumentInferenceErrors.js

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//// [typeArgumentInferenceErrors.ts]
// Generic call with multiple type parameters and only one used in parameter type annotation
function someGenerics1<T, U>(n: T, m: number) { }
someGenerics1<string, number>(3, 4); // Error

// 2 parameter generic call with argument 1 of type parameter type and argument 2 of function type whose parameter is of type parameter type
function someGenerics4<T, U>(n: T, f: (x: U) => void) { }
someGenerics4<string, number>('', (x: string) => ''); // Error

// 2 parameter generic call with argument 2 of type parameter type and argument 1 of function type whose parameter is of type parameter type
function someGenerics5<U, T>(n: T, f: (x: U) => void) { }
someGenerics5<number, string>('', (x: string) => ''); // Error

// Generic call with multiple arguments of function types that each have parameters of the same generic type
function someGenerics6<A>(a: (a: A) => A, b: (b: A) => A, c: (c: A) => A) { }
someGenerics6<number>((n: number) => n, (n: string) => n, (n: number) => n); // Error


//// [typeArgumentInferenceErrors.js]
// Generic call with multiple type parameters and only one used in parameter type annotation
function someGenerics1(n, m) { }
someGenerics1(3, 4); // Error
// 2 parameter generic call with argument 1 of type parameter type and argument 2 of function type whose parameter is of type parameter type
function someGenerics4(n, f) { }
someGenerics4('', function (x) { return ''; }); // Error
// 2 parameter generic call with argument 2 of type parameter type and argument 1 of function type whose parameter is of type parameter type
function someGenerics5(n, f) { }
someGenerics5('', function (x) { return ''; }); // Error
// Generic call with multiple arguments of function types that each have parameters of the same generic type
function someGenerics6(a, b, c) { }
someGenerics6(function (n) { return n; }, function (n) { return n; }, function (n) { return n; }); // Error