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27 行
511 B

package translation
import (
"context"
"golang.org/x/text/language"
)
type ctxkey uint8
const (
localeKey ctxkey = iota
)
// WithLanguage sets language to context.
func WithLanguage(ctx context.Context, lang language.Tag) context.Context {
return context.WithValue(ctx, localeKey, lang)
}
// FromContext get language from context or use default.
func FromContext(ctx context.Context, def language.Tag) language.Tag {
if t, ok := ctx.Value(localeKey).(language.Tag); ok {
return t
}
return def
}