Uint8List is exposed from dart:nativewrappers in IDE

[BirjuVachhani]

Uint8List is exposed from dart:nativewrapper in IDE and it is showing up as the first recommendation where as the actual recommendation should be dart:typed_data.

If this option is selected, it stops compiling. This shouldn't be exposed.

Dart Version

Dart SDK version: 3.9.2 (stable) (Wed Aug 27 03:49:40 2025 -0700) on "macos_arm64"

IDE: Intellij Idea
Dart Plugin: v252.25557.23
Flutter Plugin: v88.0.0

[lrhn]

The entry for nativewrappers in libraries.yaml is:

nativewrappers:
      uri: "html/dartium/nativewrappers.dart"

(Dartium?!)

The only members of the nativewrappers are the classes:

base class NativeFieldWrapperClass1 {}

base class NativeFieldWrapperClass2 extends NativeFieldWrapperClass1 {}

base class NativeFieldWrapperClass3 extends NativeFieldWrapperClass2 {}

base class NativeFieldWrapperClass4 extends NativeFieldWrapperClass3 {}

and a private, seemingly VM-related, deprecated function.

No documentation. I think this library should either be removed, made private, or be documented and owned.

[aam]

It's not clear why Intellij plugin decided to connect dart:nativewrappers with _internal/vm/lib/typed_data_patch.dart, how Uint8List was found there.
Perhaps @helin24 has some ideas?

[helin24]

It looks like the analysis server exposes the _internal class, but the ordering differs between VS Code and IJ:

VS Code:

IJ:

I'd have to look around the Dart plugin code more to see if there's some logic in there for ordering, but if the issue is whether those classes should show up in the first place, I suspect that's from the analysis server.

[aam]

Thank you @helin24 .

@scheglov do you have thoughts on why _internal/vm/lib/typed_data_patch.dart showed up under dart:nativewrappers in the list of suggested imports?

[scheglov]

I don't see typed_data_patch.dart is not in the resulting built Dart SDK, only see it in SDK repository. There it is just a library, so if somehow discovered because you open the whole SDK directory in IDE, it might be suggested.