Compile-on-save does not honour const enums when declaration is in an external file

[NoelAbrahams]

Hi,

TS: 1.4

To reproduce.

• Create a TypeScript project in Visual Studio with "Compile on save" set to on.

• Add file enums.d.ts with code:

  declare module enums {
    const enum Bar {
        one = 0,
        two = 1,
    }
  }

• Add file foo.ts with code:

  /// <reference path="enums.d.ts" />
  var foo = enums.Bar.one;

• Compile the project and check that the output foo.js is correct:

  /// <reference path="enums.d.ts" />
  var foo = 0 /* one */;

• Now trigger compile-on-save by saving foo.ts.

• The output in foo.js is now broken:

  /// <reference path="enums.d.ts" />
  var foo = enums.Bar.one;

The following point is relevant: If the enum declaration is moved to foo.ts then things work correctly.

This is a significant issue because the code fails with a runtime error.

[Stompf]

I had the same problem, updating my language service file from master fixed my problem. See #1812 and comment #1812 (comment) of how to build latest

[NoelAbrahams]

@Stompf, yes, looks to be a duplicate. Thanks.