1 files changed, 0 insertions, 156 deletions
diff --git a/vendor/go.opentelemetry.io/otel/propagation/trace_context.go b/vendor/go.opentelemetry.io/otel/propagation/trace_context.go
deleted file mode 100644
index 6870e316d..000000000
--- a/vendor/go.opentelemetry.io/otel/propagation/trace_context.go
+++ /dev/null
@@ -1,156 +0,0 @@
-// Copyright The OpenTelemetry Authors
-// SPDX-License-Identifier: Apache-2.0
-
-package propagation // import "go.opentelemetry.io/otel/propagation"
-
-import (
-	"context"
-	"encoding/hex"
-	"fmt"
-	"strings"
-
-	"go.opentelemetry.io/otel/trace"
-)
-
-const (
-	supportedVersion  = 0
-	maxVersion        = 254
-	traceparentHeader = "traceparent"
-	tracestateHeader  = "tracestate"
-	delimiter         = "-"
-)
-
-// TraceContext is a propagator that supports the W3C Trace Context format
-// (https://www.w3.org/TR/trace-context/)
-//
-// This propagator will propagate the traceparent and tracestate headers to
-// guarantee traces are not broken. It is up to the users of this propagator
-// to choose if they want to participate in a trace by modifying the
-// traceparent header and relevant parts of the tracestate header containing
-// their proprietary information.
-type TraceContext struct{}
-
-var (
-	_           TextMapPropagator = TraceContext{}
-	versionPart                   = fmt.Sprintf("%.2X", supportedVersion)
-)
-
-// Inject injects the trace context from ctx into carrier.
-func (tc TraceContext) Inject(ctx context.Context, carrier TextMapCarrier) {
-	sc := trace.SpanContextFromContext(ctx)
-	if !sc.IsValid() {
-		return
-	}
-
-	if ts := sc.TraceState().String(); ts != "" {
-		carrier.Set(tracestateHeader, ts)
-	}
-
-	// Clear all flags other than the trace-context supported sampling bit.
-	flags := sc.TraceFlags() & trace.FlagsSampled
-
-	var sb strings.Builder
-	sb.Grow(2 + 32 + 16 + 2 + 3)
-	_, _ = sb.WriteString(versionPart)
-	traceID := sc.TraceID()
-	spanID := sc.SpanID()
-	flagByte := [1]byte{byte(flags)}
-	var buf [32]byte
-	for _, src := range [][]byte{traceID[:], spanID[:], flagByte[:]} {
-		_ = sb.WriteByte(delimiter[0])
-		n := hex.Encode(buf[:], src)
-		_, _ = sb.Write(buf[:n])
-	}
-	carrier.Set(traceparentHeader, sb.String())
-}
-
-// Extract reads tracecontext from the carrier into a returned Context.
-//
-// The returned Context will be a copy of ctx and contain the extracted
-// tracecontext as the remote SpanContext. If the extracted tracecontext is
-// invalid, the passed ctx will be returned directly instead.
-func (tc TraceContext) Extract(ctx context.Context, carrier TextMapCarrier) context.Context {
-	sc := tc.extract(carrier)
-	if !sc.IsValid() {
-		return ctx
-	}
-	return trace.ContextWithRemoteSpanContext(ctx, sc)
-}
-
-func (tc TraceContext) extract(carrier TextMapCarrier) trace.SpanContext {
-	h := carrier.Get(traceparentHeader)
-	if h == "" {
-		return trace.SpanContext{}
-	}
-
-	var ver [1]byte
-	if !extractPart(ver[:], &h, 2) {
-		return trace.SpanContext{}
-	}
-	version := int(ver[0])
-	if version > maxVersion {
-		return trace.SpanContext{}
-	}
-
-	var scc trace.SpanContextConfig
-	if !extractPart(scc.TraceID[:], &h, 32) {
-		return trace.SpanContext{}
-	}
-	if !extractPart(scc.SpanID[:], &h, 16) {
-		return trace.SpanContext{}
-	}
-
-	var opts [1]byte
-	if !extractPart(opts[:], &h, 2) {
-		return trace.SpanContext{}
-	}
-	if version == 0 && (h != "" || opts[0] > 2) {
-		// version 0 not allow extra
-		// version 0 not allow other flag
-		return trace.SpanContext{}
-	}
-
-	// Clear all flags other than the trace-context supported sampling bit.
-	scc.TraceFlags = trace.TraceFlags(opts[0]) & trace.FlagsSampled
-
-	// Ignore the error returned here. Failure to parse tracestate MUST NOT
-	// affect the parsing of traceparent according to the W3C tracecontext
-	// specification.
-	scc.TraceState, _ = trace.ParseTraceState(carrier.Get(tracestateHeader))
-	scc.Remote = true
-
-	sc := trace.NewSpanContext(scc)
-	if !sc.IsValid() {
-		return trace.SpanContext{}
-	}
-
-	return sc
-}
-
-// upperHex detect hex is upper case Unicode characters.
-func upperHex(v string) bool {
-	for _, c := range v {
-		if c >= 'A' && c <= 'F' {
-			return true
-		}
-	}
-	return false
-}
-
-func extractPart(dst []byte, h *string, n int) bool {
-	part, left, _ := strings.Cut(*h, delimiter)
-	*h = left
-	// hex.Decode decodes unsupported upper-case characters, so exclude explicitly.
-	if len(part) != n || upperHex(part) {
-		return false
-	}
-	if p, err := hex.Decode(dst, []byte(part)); err != nil || p != n/2 {
-		return false
-	}
-	return true
-}
-
-// Fields returns the keys who's values are set with Inject.
-func (tc TraceContext) Fields() []string {
-	return []string{traceparentHeader, tracestateHeader}
-}