.gitignore added

[dotfiles/.git] / .config / coc / extensions / coc-go-data / tools / pkg / mod / golang.org / x / tools@v0.1.1-0.20210319172145-bda8f5cee399 / internal / event / export / tag.go

diff --git a/.config/coc/extensions/coc-go-data/tools/pkg/mod/golang.org/x/tools@v0.1.1-0.20210319172145-bda8f5cee399/internal/event/export/tag.go b/.config/coc/extensions/coc-go-data/tools/pkg/mod/golang.org/x/tools@v0.1.1-0.20210319172145-bda8f5cee399/internal/event/export/tag.go
new file mode 100644 (file)
index 0000000..bc6493d
--- /dev/null
+++ b/.config/coc/extensions/coc-go-data/tools/pkg/mod/golang.org/x/tools@v0.1.1-0.20210319172145-bda8f5cee399/internal/event/export/tag.go
@@ -0,0 +1,37 @@
+// Copyright 2019 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package export
+
+import (
+       "context"
+
+       "golang.org/x/tools/internal/event"
+       "golang.org/x/tools/internal/event/core"
+       "golang.org/x/tools/internal/event/label"
+)
+
+// Labels builds an exporter that manipulates the context using the event.
+// If the event is type IsLabel or IsStartSpan then it returns a context updated
+// with label values from the event.
+// For all other event types the event labels will be updated with values from the
+// context if they are missing.
+func Labels(output event.Exporter) event.Exporter {
+       return func(ctx context.Context, ev core.Event, lm label.Map) context.Context {
+               stored, _ := ctx.Value(labelContextKey).(label.Map)
+               if event.IsLabel(ev) || event.IsStart(ev) {
+                       // update the label map stored in the context
+                       fromEvent := label.Map(ev)
+                       if stored == nil {
+                               stored = fromEvent
+                       } else {
+                               stored = label.MergeMaps(fromEvent, stored)
+                       }
+                       ctx = context.WithValue(ctx, labelContextKey, stored)
+               }
+               // add the stored label context to the label map
+               lm = label.MergeMaps(lm, stored)
+               return output(ctx, ev, lm)
+       }
+}