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tests/cases/compiler/genericRestArgs.ts(2,12): error TS2453: The type argument for type parameter 'T' cannot be inferred from the usage. Consider specifying the type arguments explicitly.
Type argument candidate '1' is not a valid type argument because it is not a supertype of candidate '""'.
tests/cases/compiler/genericRestArgs.ts(5,34): error TS2345: Argument of type '""' is not assignable to parameter of type 'number'.
tests/cases/compiler/genericRestArgs.ts(10,12): error TS2453: The type argument for type parameter 'T' cannot be inferred from the usage. Consider specifying the type arguments explicitly.
Type argument candidate '1' is not a valid type argument because it is not a supertype of candidate '""'.
tests/cases/compiler/genericRestArgs.ts(12,30): error TS2345: Argument of type '1' is not assignable to parameter of type 'any[]'.
==== tests/cases/compiler/genericRestArgs.ts (4 errors) ====
function makeArrayG<T>(...items: T[]): T[] { return items; }
var a1Ga = makeArrayG(1, ""); // no error
~~~~~~~~~~
!!! error TS2453: The type argument for type parameter 'T' cannot be inferred from the usage. Consider specifying the type arguments explicitly.
!!! error TS2453: Type argument candidate '1' is not a valid type argument because it is not a supertype of candidate '""'.
var a1Gb = makeArrayG<any>(1, "");
var a1Gc = makeArrayG<Object>(1, "");
var a1Gd = makeArrayG<number>(1, ""); // error
~~
!!! error TS2345: Argument of type '""' is not assignable to parameter of type 'number'.
function makeArrayGOpt<T>(item1?: T, item2?: T, item3?: T) {
return [item1, item2, item3];
}
var a2Ga = makeArrayGOpt(1, "");
~~~~~~~~~~~~~
!!! error TS2453: The type argument for type parameter 'T' cannot be inferred from the usage. Consider specifying the type arguments explicitly.
!!! error TS2453: Type argument candidate '1' is not a valid type argument because it is not a supertype of candidate '""'.
var a2Gb = makeArrayG<any>(1, "");
var a2Gc = makeArrayG<any[]>(1, ""); // error
~
!!! error TS2345: Argument of type '1' is not assignable to parameter of type 'any[]'.
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