diff options
Diffstat (limited to 'vendor/golang.org/x/net/trace/trace_go17.go')
-rw-r--r-- | vendor/golang.org/x/net/trace/trace_go17.go | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/vendor/golang.org/x/net/trace/trace_go17.go b/vendor/golang.org/x/net/trace/trace_go17.go new file mode 100644 index 0000000..df6e1fb --- /dev/null +++ b/vendor/golang.org/x/net/trace/trace_go17.go | |||
@@ -0,0 +1,21 @@ | |||
1 | // Copyright 2017 The Go Authors. All rights reserved. | ||
2 | // Use of this source code is governed by a BSD-style | ||
3 | // license that can be found in the LICENSE file. | ||
4 | |||
5 | // +build go1.7 | ||
6 | |||
7 | package trace | ||
8 | |||
9 | import "context" | ||
10 | |||
11 | // NewContext returns a copy of the parent context | ||
12 | // and associates it with a Trace. | ||
13 | func NewContext(ctx context.Context, tr Trace) context.Context { | ||
14 | return context.WithValue(ctx, contextKey, tr) | ||
15 | } | ||
16 | |||
17 | // FromContext returns the Trace bound to the context, if any. | ||
18 | func FromContext(ctx context.Context) (tr Trace, ok bool) { | ||
19 | tr, ok = ctx.Value(contextKey).(Trace) | ||
20 | return | ||
21 | } | ||