Provide a way to alias namespaces

TypeScript should have a way to embed (type) namespaces. In the following case, assigned (embeded) namespace NS.A should have a C type.

TypeScript Version: master

Code

namespace NS_A {
  export class C {
  }
}
namespace NS {
  export var A = NS_A;
  export type A = NS_A;
}
var C = NS.A.C;
type C = NS.A.C;

Expected behavior:

$ node built/local/tsc.js --lib es6 -m commonjs --noEmit index.ts

Actual behavior:

$ node built/local/tsc.js --lib es6 -m commonjs --noEmit index.ts
index.ts(7,19): error TS2304: Cannot find name 'NS_A'.
index.ts(10,13): error TS2305: Module 'NS' has no exported member 'A'.

[RyanCavanaugh]

I’ve been thinking about this as well. We have var / const to alias a value, and type to alias a type, but no equivalent for namespace. We could even consider

namespace ns = foo;

for establishing namespace aliases.

[pgherveou]

stumbled upon this issue, it looks like this feature is supported now see doc here https://www.typescriptlang.org/docs/handbook/namespaces.html#aliases @falsandtru if that answer your question you might want to close this issue