TS 3.0-rc project references to ancestor folders breaks module dependency ordering.

[WearyMonkey]

When a project contains a reference to project in a ancestor folder, includes source files must be listed in dependency order.

TypeScript Version: 3.0-rc, 3.0.1-insiders.20180726, and 3.1.0-dev

Search Terms:

3.0 project references

Code

{
  "compilerOptions": {
    "composite": true,
    "declaration": true

  },
  "references": [
    { "path": ".." }
  ],
  "files": [
    "./imports.ts",
    "./exports.ts"
  ]
}

Where imports.ts is:

import { foo } from './exports';

and exports.ts is:

export const foo = 'foo';

Expected behavior:

Compilation succeeds.

Actual behavior:

error TS6305: Output file '/Users/toby/dev/ts3_bug/proj1/proj2/exports.d.ts' has not been built from source file '/Users/toby/dev/ts3_bug/proj1/proj2/exports.ts'.

Changing the order of files to:

  "files": [
    "./exports.ts",
    "./imports.ts"
  ]

Succeeds.

Github project Link:

https://github.com/WearyMonkey/ts3-file-order-bug

Related Issues:

#25600 (comment)

[tommedema]

This seems crucial. Reading https://blogs.msdn.microsoft.com/typescript/2018/07/30/announcing-typescript-3-0/#project-references it says the the main purpose of references is build ordering; which actually appears to be broken? This issue was reported 1 month ago but supposedly with no progress.