"Go to definition" not working with `declarationMap` and projects references

[OliverJAsh]

TypeScript Version: 3.0.0-rc

Search Terms:

Code

Full reproduction case

src
├── client
│   ├── main.ts
│   └── tsconfig.json
└── shared
    ├── main.ts
    └── tsconfig.json

// src/client/main.ts
import { foo } from '../shared/main';

console.log({ foo })

// src/client/tsconfig.json
{
    "compilerOptions": {
        // Needed for project references.
        "composite": true,
        "declaration": true,

        // Other options...
        "outDir": "../../lib/client",
        "strict": true, "module": "esnext", "moduleResolution": "node",
    },
    "references": [
        { "path": "../shared" }
    ]
}

// src/shared/main.ts
export const foo = 1;

// src/shared/tsconfig.json
{
    "compilerOptions": {
        // Needed for project references.
        "composite": true,
        "declaration": true,
        "declarationMap": true,

        // Other options...
        "outDir": "../../lib/shared",
        "strict": true, "module": "esnext", "moduleResolution": "node",
    }
}

• Run tsc --build ./src/client/
• Configure VSCode TypeScript version to use workspace, and reload VSCode

Expected behavior:
"Go to definition" should work for foo identifier in src/client/main.ts.

Actual behavior:
"Go to definition" does not work for foo identifier in src/client/main.ts.

[weswigham]

Having looked at the other issue, I think this is a dupe of #25792 - or rather, #25792 is a dupe of this, but I looked into #25792 first. 😛 In any case, I should have a fix promptly.

[OliverJAsh]

@weswigham I just tested this with 3.0.1 and I can still reproduce. Any ideas? Can we re-open?

[mhegazy]

@weswigham can you take a look.

[AnyhowStep]

On 3.0.1, have this issue, too.

Code checks, compiles, runs, etc. just "Go to definition" not working.