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package jsonlog // import "github.com/docker/docker/daemon/logger/jsonfilelog/jsonlog"
import (
"time"
"github.com/pkg/errors"
)
const jsonFormat = `"` + time.RFC3339Nano + `"`
// fastTimeMarshalJSON avoids one of the extra allocations that
// time.MarshalJSON is making.
func fastTimeMarshalJSON(t time.Time) (string, error) {
if y := t.Year(); y < 0 || y >= 10000 {
// RFC 3339 is clear that years are 4 digits exactly.
// See golang.org/issue/4556#c15 for more discussion.
return "", errors.New("time.MarshalJSON: year outside of range [0,9999]")
}
return t.Format(jsonFormat), nil
}
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