kubernetes/vendor/go.opentelemetry.io/otel/sdk/trace/tracer.go

type tracer …

var _ …

// Start starts a Span and returns it along with a context containing it.
//
// The Span is created with the provided name and as a child of any existing
// span context found in the passed context. The created Span will be
// configured appropriately by any SpanOption passed.
func (tr *tracer) Start(ctx context.Context, name string, options ...trace.SpanStartOption) (context.Context, trace.Span) { … }

type runtimeTracer …

// newSpan returns a new configured span.
func (tr *tracer) newSpan(ctx context.Context, name string, config *trace.SpanConfig) trace.Span { … }

// newRecordingSpan returns a new configured recordingSpan.
func (tr *tracer) newRecordingSpan(psc, sc trace.SpanContext, name string, sr SamplingResult, config *trace.SpanConfig) *recordingSpan { … }

// newNonRecordingSpan returns a new configured nonRecordingSpan.
func (tr *tracer) newNonRecordingSpan(sc trace.SpanContext) nonRecordingSpan { … }