mirror of
https://github.com/golang/go
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24 lines
959 B
Go
24 lines
959 B
Go
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// Copyright 2019 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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// Package xcontext is a package to offer the extra functionality we need
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// from contexts that is not available from the standard context package.
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package xcontext
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import (
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"context"
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"time"
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)
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// Detach returns a context that keeps all the values of its parent context
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// but detaches from the cancellation and error handling.
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func Detach(ctx context.Context) context.Context { return detachedContext{ctx} }
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type detachedContext struct{ parent context.Context }
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func (v detachedContext) Deadline() (time.Time, bool) { return time.Time{}, false }
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func (v detachedContext) Done() <-chan struct{} { return nil }
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func (v detachedContext) Err() error { return nil }
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func (v detachedContext) Value(key interface{}) interface{} { return v.parent.Value(key) }
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