From 8c12c6939aab9106db14ec2d11d983bc5b29fb2c Mon Sep 17 00:00:00 2001
From: Niall Sheridan <nsheridan@gmail.com>
Date: Sun, 7 Jul 2019 21:33:44 +0100
Subject: Switch to modules

---
 .../trace/propagation/propagation.go               | 108 ---------------------
 1 file changed, 108 deletions(-)
 delete mode 100644 vendor/go.opencensus.io/trace/propagation/propagation.go

(limited to 'vendor/go.opencensus.io/trace/propagation/propagation.go')

diff --git a/vendor/go.opencensus.io/trace/propagation/propagation.go b/vendor/go.opencensus.io/trace/propagation/propagation.go
deleted file mode 100644
index 1eb190a..0000000
--- a/vendor/go.opencensus.io/trace/propagation/propagation.go
+++ /dev/null
@@ -1,108 +0,0 @@
-// Copyright 2017, OpenCensus Authors
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
-// Package propagation implements the binary trace context format.
-package propagation // import "go.opencensus.io/trace/propagation"
-
-// TODO: link to external spec document.
-
-// BinaryFormat format:
-//
-// Binary value: <version_id><version_format>
-// version_id: 1 byte representing the version id.
-//
-// For version_id = 0:
-//
-// version_format: <field><field>
-// field_format: <field_id><field_format>
-//
-// Fields:
-//
-// TraceId: (field_id = 0, len = 16, default = "0000000000000000") - 16-byte array representing the trace_id.
-// SpanId: (field_id = 1, len = 8, default = "00000000") - 8-byte array representing the span_id.
-// TraceOptions: (field_id = 2, len = 1, default = "0") - 1-byte array representing the trace_options.
-//
-// Fields MUST be encoded using the field id order (smaller to higher).
-//
-// Valid value example:
-//
-// {0, 0, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 1, 97,
-// 98, 99, 100, 101, 102, 103, 104, 2, 1}
-//
-// version_id = 0;
-// trace_id = {64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79}
-// span_id = {97, 98, 99, 100, 101, 102, 103, 104};
-// trace_options = {1};
-
-import (
-	"net/http"
-
-	"go.opencensus.io/trace"
-)
-
-// Binary returns the binary format representation of a SpanContext.
-//
-// If sc is the zero value, Binary returns nil.
-func Binary(sc trace.SpanContext) []byte {
-	if sc == (trace.SpanContext{}) {
-		return nil
-	}
-	var b [29]byte
-	copy(b[2:18], sc.TraceID[:])
-	b[18] = 1
-	copy(b[19:27], sc.SpanID[:])
-	b[27] = 2
-	b[28] = uint8(sc.TraceOptions)
-	return b[:]
-}
-
-// FromBinary returns the SpanContext represented by b.
-//
-// If b has an unsupported version ID or contains no TraceID, FromBinary
-// returns with ok==false.
-func FromBinary(b []byte) (sc trace.SpanContext, ok bool) {
-	if len(b) == 0 || b[0] != 0 {
-		return trace.SpanContext{}, false
-	}
-	b = b[1:]
-	if len(b) >= 17 && b[0] == 0 {
-		copy(sc.TraceID[:], b[1:17])
-		b = b[17:]
-	} else {
-		return trace.SpanContext{}, false
-	}
-	if len(b) >= 9 && b[0] == 1 {
-		copy(sc.SpanID[:], b[1:9])
-		b = b[9:]
-	}
-	if len(b) >= 2 && b[0] == 2 {
-		sc.TraceOptions = trace.TraceOptions(b[1])
-	}
-	return sc, true
-}
-
-// HTTPFormat implementations propagate span contexts
-// in HTTP requests.
-//
-// SpanContextFromRequest extracts a span context from incoming
-// requests.
-//
-// SpanContextToRequest modifies the given request to include the given
-// span context.
-type HTTPFormat interface {
-	SpanContextFromRequest(req *http.Request) (sc trace.SpanContext, ok bool)
-	SpanContextToRequest(sc trace.SpanContext, req *http.Request)
-}
-
-// TODO(jbd): Find a more representative but short name for HTTPFormat.
-- 
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