Symbols are listed twice when Deno is enabled

[klaussner]

Describe the bug

When Deno is enabled, symbols in source files are shown twice in the list of symbols.

To reproduce

1. Open an empty directory in VS Code.
2. Run the "Deno: Initialize Workspace Configuration" command.
3. Create a JavaScript file with the content below.
4. Open the command palette and type "@" to list the symbols.

export function foo() {
  return 42;
}

Expected behavior

The symbol foo is shown once in the list.

Video

If applicable, add screenshots to help explain your problem.

Versions

vscode: 1.95.0 deno: 2.0.3 extension: 3.42.0

[mr-moon]

My intellisense is even more bloated:

I'm on Deno 2.0.5 rest are same as yours.

[klaussner]

Perhaps both the built-in TypeScript LSP and the Deno LSP provide results for the symbol list. If the built-in "TypeScript and JavaScript Language Features" extension is disabled (go to the extensions view and type "@​builtin typescript" into the search field), the symbols are not duplicated.

[nesk]

I've got the same issue, and fixed it by disabling the builtin TypeScript like recommended by @klaussner.

In the outline panel view, you can see that the duplication is, indeed, due to both extensions (Deno and TS) doing the same work:

[birgersp]

Is it possible to disable listing symbols (and other features) in the Deno extension?

I mean, VSCode Typescript features like listing symbols, organizing imports etc already exist in VSCode so it would be better (for me at least) to just disable these features of Deno

[birgersp]

Perhaps we could add a setting to disable these feature(s)? PR incoming

Before:

After: