const ScopeName … const GRPCStatusCodeKey … type InterceptorFilter … type Filter … type config … type Option … // newConfig returns a config configured with all the passed Options. func newConfig(opts []Option, role string) *config { … } type propagatorsOption … func (o propagatorsOption) apply(c *config) { … } // WithPropagators returns an Option to use the Propagators when extracting // and injecting trace context from requests. func WithPropagators(p propagation.TextMapPropagator) Option { … } type tracerProviderOption … func (o tracerProviderOption) apply(c *config) { … } // WithInterceptorFilter returns an Option to use the request filter. // // Deprecated: Use stats handlers instead. func WithInterceptorFilter(f InterceptorFilter) Option { … } type interceptorFilterOption … func (o interceptorFilterOption) apply(c *config) { … } // WithFilter returns an Option to use the request filter. func WithFilter(f Filter) Option { … } type filterOption … func (o filterOption) apply(c *config) { … } // WithTracerProvider returns an Option to use the TracerProvider when // creating a Tracer. func WithTracerProvider(tp trace.TracerProvider) Option { … } type meterProviderOption … func (o meterProviderOption) apply(c *config) { … } // WithMeterProvider returns an Option to use the MeterProvider when // creating a Meter. If this option is not provide the global MeterProvider will be used. func WithMeterProvider(mp metric.MeterProvider) Option { … } type Event … const ReceivedEvents … const SentEvents … type messageEventsProviderOption … func (m messageEventsProviderOption) apply(c *config) { … } // WithMessageEvents configures the Handler to record the specified events // (span.AddEvent) on spans. By default only summary attributes are added at the // end of the request. // // Valid events are: // - ReceivedEvents: Record the number of bytes read after every gRPC read operation. // - SentEvents: Record the number of bytes written after every gRPC write operation. func WithMessageEvents(events ...Event) Option { … } type spanStartOption … func (o spanStartOption) apply(c *config) { … } // WithSpanOptions configures an additional set of // trace.SpanOptions, which are applied to each new span. func WithSpanOptions(opts ...trace.SpanStartOption) Option { … }
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