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go/internal/lsp/mod/format.go
Ian Cottrell 7b212d60a1 internal/event: renaming the main event API functions
event.Log removed
event.Print -> event.Log
event.Record -> event.Metric
event.StartSpan -> event.Start

In order to support this core now exposes the MakeEvent and Export functions.

Change-Id: Ic7550d88dbf400e32c419adbb61d1546c471841e
Reviewed-on: https://go-review.googlesource.com/c/tools/+/229238
Reviewed-by: Robert Findley <rfindley@google.com>
2020-04-23 17:21:36 +00:00

27 lines
698 B
Go

package mod
import (
"context"
"golang.org/x/tools/internal/event"
"golang.org/x/tools/internal/lsp/protocol"
"golang.org/x/tools/internal/lsp/source"
)
func Format(ctx context.Context, snapshot source.Snapshot, fh source.FileHandle) ([]protocol.TextEdit, error) {
ctx, done := event.Start(ctx, "mod.Format")
defer done()
file, m, err := snapshot.ModHandle(ctx, fh).Parse(ctx)
if err != nil {
return nil, err
}
formatted, err := file.Format()
if err != nil {
return nil, err
}
// Calculate the edits to be made due to the change.
diff := snapshot.View().Options().ComputeEdits(fh.Identity().URI, string(m.Content), string(formatted))
return source.ToProtocolEdits(m, diff)
}