tests/cases/conformance/types/objectTypeLiteral/constructSignatures/constructSignaturesWithOverloads2.ts(32,11): error TS2428: All declarations of an interface must have identical type parameters. ==== tests/cases/conformance/types/objectTypeLiteral/constructSignatures/constructSignaturesWithOverloads2.ts (1 errors) ==== // No errors expected for basic overloads of construct signatures with merged declarations // clodules class C { constructor(x: number, y?: string); constructor(x: number, y: string); constructor(x: number) { } } module C { export var x = 1; } var r1 = new C(1, ''); class C2 { constructor(x: T, y?: string); constructor(x: T, y: string); constructor(x: T) { } } module C2 { export var x = 1; } var r2 = new C2(1, ''); // merged interfaces interface I { new (x: number, y?: string): C; new (x: number, y: string): C; } interface I { ~ !!! error TS2428: All declarations of an interface must have identical type parameters. new (x: T, y?: number): C2; new (x: T, y: number): C2; } var i2: I; var r4 = new i2(1, ''); var r5 = new i2(1, 1);