22 lines
826 B
Go
22 lines
826 B
Go
// 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 memoize
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import (
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"context"
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"time"
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)
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// detatch returns a context that keeps all the values of its parent context
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// but detatches from the cancellation and error handling.
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func detatchContext(ctx context.Context) context.Context { return detatchedContext{ctx} }
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type detatchedContext struct{ parent context.Context }
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func (v detatchedContext) Deadline() (time.Time, bool) { return time.Time{}, false }
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func (v detatchedContext) Done() <-chan struct{} { return nil }
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func (v detatchedContext) Err() error { return nil }
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func (v detatchedContext) Value(key interface{}) interface{} { return v.parent.Value(key) }
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