tests/cases/compiler/typeofExternalModules_core.ts(5,1): error TS2322: Type 'typeof D' is not assignable to type 'typeof "tests/cases/compiler/typeofExternalModules_external"'. Property 'C' is missing in type 'typeof D'. tests/cases/compiler/typeofExternalModules_core.ts(7,1): error TS2322: Type 'typeof "tests/cases/compiler/typeofExternalModules_external"' is not assignable to type 'typeof D'. Property 'prototype' is missing in type 'typeof "tests/cases/compiler/typeofExternalModules_external"'. ==== tests/cases/compiler/typeofExternalModules_core.ts (2 errors) ==== import ext = require('typeofExternalModules_external'); import exp = require('typeofExternalModules_exportAssign'); var y1: typeof ext = ext; y1 = exp; ~~ !!! error TS2322: Type 'typeof D' is not assignable to type 'typeof "tests/cases/compiler/typeofExternalModules_external"'. !!! error TS2322: Property 'C' is missing in type 'typeof D'. var y2: typeof exp = exp; y2 = ext; ~~ !!! error TS2322: Type 'typeof "tests/cases/compiler/typeofExternalModules_external"' is not assignable to type 'typeof D'. !!! error TS2322: Property 'prototype' is missing in type 'typeof "tests/cases/compiler/typeofExternalModules_external"'. ==== tests/cases/compiler/typeofExternalModules_external.ts (0 errors) ==== export class C { } ==== tests/cases/compiler/typeofExternalModules_exportAssign.ts (0 errors) ==== class D { } export = D;