switch to go vendoring

vendor/github.com/shamaton/msgpack/v2/internal/encoding/uint.go

@@ -0,0 +1,40 @@
+package encoding
+
+import (
+	"math"
+
+	"github.com/shamaton/msgpack/v2/def"
+)
+
+func (e *encoder) calcUint(v uint64) int {
+	if v <= math.MaxInt8 {
+		// format code only
+		return 0
+	} else if v <= math.MaxUint8 {
+		return def.Byte1
+	} else if v <= math.MaxUint16 {
+		return def.Byte2
+	} else if v <= math.MaxUint32 {
+		return def.Byte4
+	}
+	return def.Byte8
+}
+
+func (e *encoder) writeUint(v uint64, offset int) int {
+	if v <= math.MaxInt8 {
+		offset = e.setByte1Uint64(v, offset)
+	} else if v <= math.MaxUint8 {
+		offset = e.setByte1Int(def.Uint8, offset)
+		offset = e.setByte1Uint64(v, offset)
+	} else if v <= math.MaxUint16 {
+		offset = e.setByte1Int(def.Uint16, offset)
+		offset = e.setByte2Uint64(v, offset)
+	} else if v <= math.MaxUint32 {
+		offset = e.setByte1Int(def.Uint32, offset)
+		offset = e.setByte4Uint64(v, offset)
+	} else {
+		offset = e.setByte1Int(def.Uint64, offset)
+		offset = e.setByte8Uint64(v, offset)
+	}
+	return offset
+}