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internal/lsp/cache: add an UnsavedFiles method to Session

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It is useful to know whether the session has any unsaved files, for
example to warn/error when executing a command that interacts only with
files on disk.

Add a new UnsavedFiles method to the Session.

Change-Id: Iea4bf472e3ed6897979306b670eb974a2ee0d3bb
Reviewed-on: https://go-review.googlesource.com/c/tools/+/232747
Run-TryBot: Robert Findley <rfindley@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
This commit is contained in:
Rob Findley 2020-05-07 13:22:13 -04:00 committed by Robert Findley
parent ff647943c7
commit 08cbf656ce
2 changed files with 17 additions and 0 deletions
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14
internal/lsp/cache/session.go vendored
View File

@ -419,6 +419,7 @@ func (s *Session) updateOverlays(ctx context.Context, changes []source.FileModif
return overlays, nil
}
// GetFile implements the source.FileSystem interface.
func (s *Session) GetFile(uri span.URI) source.FileHandle {
if overlay := s.readOverlay(uri); overlay != nil {
return overlay
@ -436,3 +437,16 @@ func (s *Session) readOverlay(uri span.URI) *overlay {
}
return nil
}
func (s *Session) UnsavedFiles() []span.URI {
s.overlayMu.Lock()
defer s.overlayMu.Unlock()
var unsaved []span.URI
for uri, overlay := range s.overlays {
if !overlay.saved {
unsaved = append(unsaved, uri)
}
}
return unsaved
}

3
internal/lsp/source/view.go
View File

@ -185,6 +185,9 @@ type Session interface {
// It returns the resulting snapshots, a guaranteed one per view.
DidModifyFiles(ctx context.Context, changes []FileModification) ([]Snapshot, error)
// UnsavedFiles returns a slice of open but unsaved files in the session.
UnsavedFiles() []span.URI
// Options returns a copy of the SessionOptions for this session.
Options() Options