24 lines
470 B
Go
24 lines
470 B
Go
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package cache
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import (
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"golang.org/x/net/context"
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)
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const key = "cache"
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// Setter defines a context that enables setting values.
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type Setter interface {
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Set(string, interface{})
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}
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// FromContext returns the Cache associated with this context.
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func FromContext(c context.Context) Cache {
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return c.Value(key).(Cache)
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}
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// ToContext adds the Cache to this context if it supports
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// the Setter interface.
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func ToContext(c Setter, cache Cache) {
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c.Set(key, cache)
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}
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