// trace writes some trace (if there is a Tracer set).
func trace(t *tracer.Tracer, format string, args ...interface{}) {
if t.Should(tracer.LevelDebug) {
// add the 'signature' prefix to trace
if len(format) > 0 {
format = stewstrings.MergeStrings("signature: ", format)
}
// trace this
t.Trace(tracer.LevelDebug, format, args...)
}
}
func HashWithKeyWithTrace(body, key []byte, t *tracer.Tracer) string {
if t.Should(tracer.LevelDebug) {
t.Trace(tracer.LevelDebug, "HashWithKeys: body=", body)
t.Trace(tracer.LevelDebug, "HashWithKeys: key=", key)
}
hash := Hash(string(strings.JoinBytes([]byte(HashWithKeysSeparator), body, key)))
if t.Should(tracer.LevelDebug) {
t.Trace(tracer.LevelDebug, "HashWithKeys: Output: %s", hash)
}
return hash
}