Post

Nice! It reminds me of the pattern I like to use in my projects: interface AbsDirectoryPath { readonly path: AbsPath; pathAt(relativePath: string): AbsPath; } Commonly-used directories have classes that extend AbsDirectoryPath with more methods. WorkspaceDir, TestDir, etc.

I do this pretty much every time I build a moderately complex codebase that uses a file system. For me it usually ends up as a relative path and an absolute path type.

you're goated

No, these types are very specific to our own invariants and wouldn't make sense for other people, and include runtime funcs that convert regular strings to them or validate

I always do this too github.com/dsherret/path (obviously slight perf implications compared to just a string. ts-morph follows something more similar to ts 6’s ts.Path)

ME! I'm a fan - Erik