mirror of https://github.com/golang/go.git
a2a24778ba
The fundamental bug causing TestChangePackageName to fail has been fixed, yet unskipping it revealed a new bug: tracking whether or not a package should be loaded requires that we actually store that package in s.meta. In cases where we drop metadata, we also lose the information that a package path needs to be reloaded. Fix this by significantly reworking the tracking of pending loads, to simplify the code and separate the reloading logic from the logic of tracking metadata. As a nice side-effect, this eliminates the needless work necessary to mark/unmark packages as needing loading, since this is no longer tracked by the immutable metadata graph. Additionally, eliminate the "shouldLoad" guard inside of snapshot.load. We should never ask for loads that we do not want, and the shouldLoad guard either masks bugs or leads to bugs. For example, we would repeatedly call load from reloadOrphanedFiles for files that are part of a package that needs loading, because we skip loading the file scope. Lift the responsibility for determining if we should load to the callers of load. Along the way, make a few additional minor improvements: - simplify the code where possible - leave TODOs for likely bugs or things that should be simplified in the future - reduce the overly granular locking in getOrLoadIDsForURI, which could lead to strange races - remove a stale comment for a test that is no longer flaky. Updates golang/go#53878 Change-Id: I6d9084806f1fdebc43002c7cc75dc1b94f8514b9 Reviewed-on: https://go-review.googlesource.com/c/tools/+/417576 Run-TryBot: Robert Findley <rfindley@google.com> gopls-CI: kokoro <noreply+kokoro@google.com> Reviewed-by: Suzy Mueller <suzmue@golang.org> TryBot-Result: Gopher Robot <gobot@golang.org> |
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