`SourceFilesAndDirectoriesKey` contained all source files in the project and computing its hash value was pretty expensive. The key didn’t really provide any value here because the only way it changes is if the build targets change and if that’s the case, we already clear `cachedSourceFilesAndDirectories`, so we can just avoid the hash value computation.
Currently, when there‘s a syntax error in a package manifest, we don’t get any build settings from it in SourceKit-LSP and thus loose almost all semantic functionality. If we can’t parse the package manifest, fall back to providing build settings by assuming it has the current Swift tools version.
Currently, when there‘s a syntax error in a package manifest, we don’t get any build settings from it in SourceKit-LSP and thus loose almost all semantic functionality. If we can’t parse the package manifest, fall back to providing build settings by assuming it has the current Swift tools version.
Fixes#1704
rdar://136423767
Consider the following scenario: A project has target A containing A.swift an target B containing B.swift. B.swift is a symlink to A.swift. When A.swift is modified, both the dependencies of A and B need to be marked as having an out-of-date preparation status, not just A.
When we have background indexing enabled, SourceKit-LSP manages the dependencies. We should thus allow it to update them, eg. after `Package.resolved` was updated.
Some SwiftPM functions check whether their observability scope has errors. If we use the same observability scope for all SwiftPM operations during SourceKit-LSP’s lifetime, a single SwiftPM error will set the `hasError` bit in that observability scope for the entirety of SourceKit-LSP’s lifetime, impacting all upcoming SwiftPM operations.
Creating a separate child scope for every operation fixes
Adding an item to `AsyncQueue` was linear in the number of pending queue items, thus adding n items to an `AsyncQueue` before any can execute is in O(n^2). This decision was made intentionally because the primary use case for `AsyncQueue` was to track pending LSP requests, of which we don’t expect to have too many pending requests at any given time.
While we can't fix the quadratic performance issue in general, we can resolve the quadratic issue of `AsyncQueue<Serial>` by making a new task only depend on the last item in the queue, which then transitively depends on all the previous items. `AsyncQueue<Serial>` are the queues that are most likely to contain many items.
Fixes#1725
rdar://137886469
We made quite a few fixes recently to make sure that path handling works correctly using `URL` on Windows. Use `URL` in most places to have a single type that represents file paths instead of sometimes using `AbsolutePath`.
While doing so, also remove usages of `TSCBasic.FileSystem` an `InMemoryFileSystem`. The pattern of using `InMemoryFileSystem` for tests was never consistently used and it was a little confusing that some types took a `FileSystem` parameter while other always assumed to work on the local file system.
