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mirror of https://github.com/v2fly/v2ray-core.git synced 2024-12-29 05:27:02 -05:00
v2fly/context.go
2018-02-21 17:05:29 +01:00

27 lines
535 B
Go

package core
import (
"context"
)
type key int
const v2rayKey key = 1
// FromContext returns an Instance from the given context, or nil if the context doesn't contain one.
func FromContext(ctx context.Context) *Instance {
if s, ok := ctx.Value(v2rayKey).(*Instance); ok {
return s
}
return nil
}
// MustFromContext returns an Instance from the given context, or panics if not present.
func MustFromContext(ctx context.Context) *Instance {
v := FromContext(ctx)
if v == nil {
panic("V is not in context.")
}
return v
}