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Diffstat (limited to 'vendor/github.com/opentracing/opentracing-go/noop.go')
-rw-r--r--vendor/github.com/opentracing/opentracing-go/noop.go64
1 files changed, 0 insertions, 64 deletions
diff --git a/vendor/github.com/opentracing/opentracing-go/noop.go b/vendor/github.com/opentracing/opentracing-go/noop.go
deleted file mode 100644
index f9b680a21..000000000
--- a/vendor/github.com/opentracing/opentracing-go/noop.go
+++ /dev/null
@@ -1,64 +0,0 @@
-package opentracing
-
-import "github.com/opentracing/opentracing-go/log"
-
-// A NoopTracer is a trivial, minimum overhead implementation of Tracer
-// for which all operations are no-ops.
-//
-// The primary use of this implementation is in libraries, such as RPC
-// frameworks, that make tracing an optional feature controlled by the
-// end user. A no-op implementation allows said libraries to use it
-// as the default Tracer and to write instrumentation that does
-// not need to keep checking if the tracer instance is nil.
-//
-// For the same reason, the NoopTracer is the default "global" tracer
-// (see GlobalTracer and SetGlobalTracer functions).
-//
-// WARNING: NoopTracer does not support baggage propagation.
-type NoopTracer struct{}
-
-type noopSpan struct{}
-type noopSpanContext struct{}
-
-var (
- defaultNoopSpanContext SpanContext = noopSpanContext{}
- defaultNoopSpan Span = noopSpan{}
- defaultNoopTracer Tracer = NoopTracer{}
-)
-
-const (
- emptyString = ""
-)
-
-// noopSpanContext:
-func (n noopSpanContext) ForeachBaggageItem(handler func(k, v string) bool) {}
-
-// noopSpan:
-func (n noopSpan) Context() SpanContext { return defaultNoopSpanContext }
-func (n noopSpan) SetBaggageItem(key, val string) Span { return n }
-func (n noopSpan) BaggageItem(key string) string { return emptyString }
-func (n noopSpan) SetTag(key string, value interface{}) Span { return n }
-func (n noopSpan) LogFields(fields ...log.Field) {}
-func (n noopSpan) LogKV(keyVals ...interface{}) {}
-func (n noopSpan) Finish() {}
-func (n noopSpan) FinishWithOptions(opts FinishOptions) {}
-func (n noopSpan) SetOperationName(operationName string) Span { return n }
-func (n noopSpan) Tracer() Tracer { return defaultNoopTracer }
-func (n noopSpan) LogEvent(event string) {}
-func (n noopSpan) LogEventWithPayload(event string, payload interface{}) {}
-func (n noopSpan) Log(data LogData) {}
-
-// StartSpan belongs to the Tracer interface.
-func (n NoopTracer) StartSpan(operationName string, opts ...StartSpanOption) Span {
- return defaultNoopSpan
-}
-
-// Inject belongs to the Tracer interface.
-func (n NoopTracer) Inject(sp SpanContext, format interface{}, carrier interface{}) error {
- return nil
-}
-
-// Extract belongs to the Tracer interface.
-func (n NoopTracer) Extract(format interface{}, carrier interface{}) (SpanContext, error) {
- return nil, ErrSpanContextNotFound
-}