I am being able to access private properties outside the class

[pjlunardelli]

What version of Bun is running?

1.0.18+36c316a24

What platform is your computer?

Darwin 23.2.0 arm64 arm

What steps can reproduce the bug?

1. Create a private property
2. Access it outside the class

Example
async prepare() {
this.fileSystemHandler = new FileSystemHandler(this.finalDir);
console.log(
"file: classifier.ts:29 || this.fileSystemHandler.handler:",
this.fileSystemHandler.handler.data
);
this.fileSystemHandler.handler = {};
console.log(
"file: classifier.ts:31 || this.fileSystemHandler:",
this.fileSystemHandler.handler
);
}

Log:
file: classifier.ts:29 || this.fileSystemHandler.handler: null
file: classifier.ts:31 || this.fileSystemHandler: {}

What is the expected behavior?

Don't run

What do you see instead?

Code running and showing information it shouldn't

Additional information

I was able to get a private property to work via "#property"

[Didas-git]

I dont see any private properties in the example.
As for testing, i dont see any issues and bun seems to be working as intended

[pjlunardelli]

The image haven't been uploaded, my mistake.

Is does work with "#", but it doesn't with private

private handler: StringHandler | BufferHandler;
private helpers: Helpers = { directory: new Directory(this) };

constructor(
path?: string,
mode: Mode = "Buffer",
acceptDir: boolean = false
) {
super(path);
this.mode = mode;
this.handler = new handlermode;
if (acceptDir !== undefined) this.acceptDir = acceptDir;
}

[Didas-git]

private is not a javascript thing.
its a typescript keyword and only works on the type level, it has no effect at runtime

[Jarred-Sumner]

TypeScript’s private doesn’t use the JavaScript feature for private fields and we cannot change this without breaking lots of code.

[pjlunardelli]

You are both correct, thanks for the information.
microsoft/TypeScript#31670
https://stackoverflow.com/questions/75480223/compiling-private-to-property