Different 'find all references' results on export default depending on trigger position

[mjbvz]

Bug Report

🔎 Search Terms

• find all references
• f12
• default export

🕗 Version & Regression Information

4.7-beta

Not a regression

💻 Code

For the code:

// index.ts
import bla from './index'

export default 123;

🙁 Actual behavior

1. Run find all references on export. Notice no results returned

[Trace  - 19:25:55.949] <semantic> Sending request: references (831). Response expected: yes. Current queue length: 0
Arguments: {
    "file": "/Users/matb/projects/san/index.ts",
    "line": 4,
    "offset": 2
}
[Trace  - 19:25:55.952] <semantic> Response received: references (831). Request took 3 ms. Success: true 
Result: {
    "refs": [],
    "symbolName": "export",
    "symbolStartOffset": 1,
    "symbolDisplayString": "(property) default: 123"
}

1. Now Run find all references on default. Notice the two correct references are returned

[Trace  - 19:26:16.509] <semantic> Sending request: references (837). Response expected: yes. Current queue length: 0
Arguments: {
    "file": "/Users/matb/projects/san/index.ts",
    "line": 4,
    "offset": 11
}
[Trace  - 19:26:16.511] <semantic> Response received: references (837). Request took 2 ms. Success: true 
Result: {
    "refs": [
        {
            "file": "/Users/matb/projects/san/index.ts",
            "start": {
                "line": 4,
                "offset": 8
            },
            "end": {
                "line": 4,
                "offset": 15
            },
            "contextStart": {
                "line": 4,
                "offset": 1
            },
            "contextEnd": {
                "line": 4,
                "offset": 20
            },
            "lineText": "export default 123; ",
            "isWriteAccess": true,
            "isDefinition": true
        },
        {
            "file": "/Users/matb/projects/san/index.ts",
            "start": {
                "line": 2,
                "offset": 8
            },
            "end": {
                "line": 2,
                "offset": 11
            },
            "contextStart": {
                "line": 2,
                "offset": 1
            },
            "contextEnd": {
                "line": 2,
                "offset": 26
            },
            "lineText": "import bla from './index'",
            "isWriteAccess": true,
            "isDefinition": false
        }
    ],
    "symbolName": "default",
    "symbolStartOffset": 8,
    "symbolDisplayString": "(property) default: 123"
}

🙂 Expected behavior

I think both cases should return the same references

[mjames-c]

unsure if this is the same issue, however I work for a company with a large mono-repo containing many TS projects. one of our leaf projects contains a Button export with over 16k+ references across the repo. the configuration for this leaf project is below (various properties omitted for privacy reasons):

{
 "rootNames": [
    ...
 ],
 "options": {
  "plugins": [
    ...
  ],
  "paths": {
    ...
  },
  "pathsBasePath": "<omitted>/web",
  "composite": true,
  "declaration": true,
  "baseUrl": "<omitted>/web/src",
  "experimentalDecorators": true,
  "importHelpers": true,
  "noImplicitOverride": true,
  "isolatedModules": true,
  "jsx": 4,
  "lib": [
   "lib.dom.d.ts",
   "lib.dom.iterable.d.ts",
   "lib.es2018.d.ts",
   "lib.es2019.array.d.ts",
   "lib.es2019.object.d.ts",
   "lib.es2019.string.d.ts",
   "lib.es2020.promise.d.ts",
   "lib.es2020.string.d.ts",
   "lib.es2020.intl.d.ts",
   "lib.es2021.promise.d.ts",
   "lib.es2022.string.d.ts",
   "lib.es2022.array.d.ts",
   "lib.es2022.error.d.ts"
  ],
  "moduleResolution": 2,
  "rootDir": "<omitted>",
  "outDir": "<omitted>",
  "strict": true,
  "skipLibCheck": true,
  "target": 6,
  "sourceMap": true,
  "inlineSources": true,
  "module": 99,
  "types": [],
  "configFilePath": "<omitted>/tsconfig.json"
 },
 "projectReferences": [
    ...
 ]
}

Bug: When I attempt to run "Find All References" across the Button symbol it returns no results outside of the project.

// web/src/ui/base/button/button.ts
export { Button, ... } from './private/button';

Expected behaviour: tsserver to attempt a reverse dependency lookup of the Button symbol.

tsserver logs with version details:

Info 0    [16:21:54.777] Starting TS Server
Info 1    [16:21:54.777] Version: 5.8.2
Info 2    [16:21:54.777] Arguments: /usr/bin/node <omitted>/node_modules/typescript/lib/tsserver.js --useInferredProjectPerProjectRoot --enableTelemetry --cancellationPipeName <omitted>/tscancellation-830202ca701f8d894b9f.tmp* --logVerbosity normal --logFile <omitted>/tsserver.log --locale en --noGetErrOnBackgroundUpdate --validateDefaultNpmLocation
Info 3    [16:21:54.777] Platform: linux NodeVersion: v20.18.3 CaseSensitive: true
Info 4    [16:21:54.777] ServerMode: undefined hasUnknownServerMode: undefined
Info 5    [16:21:54.782] currentDirectory:: <omitted> useCaseSensitiveFileNames:: true
Info 6    [16:21:54.782] libs Location:: <omitted>/node_modules/.pnpm/[email protected]/node_modules/typescript/lib
Info 7    [16:21:54.782] globalTypingsCacheLocation:: <omitted>/.cache/typescript/5.8
Info 8    [16:21:54.793] Host information vscode
Info 9    [16:21:54.796] getConfigFileNameForFile:: File: <omitted> ProjectRootPath: <omitted>:: Result: <omitted>
Info 10   [16:21:54.797] Creating ConfiguredProject: <omitted>, currentDirectory: <omitted>

[mjames-c]

I've chased the problem down to here: https://github.com/microsoft/TypeScript/blob/beb69e4cdd61b1a0fd9ae21ae58bd4bd409d7217/src/server/editorServices.ts#L4769-L4770

Our solution level tsconfig.json contains the following config:

{
  "files": [],
  "include": [],
  "references": [
    { "path": "..." },
    { "path": "..." },
    ...
  ]
}

however, the call to project.getCurrentProgram()?.getResolvedProjectReferences() returns undefined which, in turn, is because the program for our solution tsconfig project has NOT been initialized. is this a regression or has this always been a bug in tsserver?