local file with private class properties symlinked multiple times erroneously fails compilation

[seansfkelley]

The title is a mouthful, but basically, I'm seeing microsoft/TypeScript#6496 on Typescript 2.0.3, but only when run through Webpack. I'm not 100% which of the many moving parts is at fault here, so I've cross-posted an issue here and as a comment on microsoft/TypeScript#6496.

The repro is sort of involved, so I made a repo to demonstrate: https://github.com/seansfkelley/typescript-lerna-webpack-sadness

[blakeembrey]

@seansfkelley Doesn't seem like a bug in ts-loader, as you already found 😄 It's an issue with TypeScript, see also microsoft/TypeScript#11436 and microsoft/TypeScript#7755. It's a bit of a PITA.

[seansfkelley]

What's strange about the repro I provided above is that it only seems to happen when running through Webpack. tsc behaves just fine (in line with microsoft/TypeScript#6496 (comment)), but something about Webpack specifically seems to be causing issues. I wasn't able to nail down anything more precise than that repro though.

[blakeembrey]

Perhaps one is getting the realpath internally. No sure, hopefully there's some insights here for others 😄

[ghost]

This is working with tsc and with https://github.com/s-panferov/awesome-typescript-loader.
It looks like ts-loader's ModuleResolutionHost only implements 2 methods.
Try implementing the optional methods in ModuleResolutionHost, particularly realpath.

[johnnyreilly]

Thanks for commenting @Andy-MS. If you could submit a PR that would be greatly appreciated. John

[johnnyreilly]

Looking at the atl implementation it may be as simple as replacing moduleResolutionHost with compiler.sys

[johnnyreilly]

In the compiler.resolveModuleName call

[veeramarni]

Would there be a permanent fix or need to use the workaround? I think it was working with awesome-typescript-loader

[stale]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.

[stale]

Closing as stale. Please reopen if you'd like to work on this further.