Vendor main dependencies.

vendor/github.com/ugorji/go/codec/helper_unsafe.go

@@ -0,0 +1,45 @@
+//+build unsafe
+
+// Copyright (c) 2012-2015 Ugorji Nwoke. All rights reserved.
+// Use of this source code is governed by a MIT license found in the LICENSE file.
+
+package codec
+
+import (
+	"unsafe"
+)
+
+// This file has unsafe variants of some helper methods.
+
+type unsafeString struct {
+	Data uintptr
+	Len  int
+}
+
+type unsafeBytes struct {
+	Data uintptr
+	Len  int
+	Cap  int
+}
+
+// stringView returns a view of the []byte as a string.
+// In unsafe mode, it doesn't incur allocation and copying caused by conversion.
+// In regular safe mode, it is an allocation and copy.
+func stringView(v []byte) string {
+	if len(v) == 0 {
+		return ""
+	}
+	x := unsafeString{uintptr(unsafe.Pointer(&v[0])), len(v)}
+	return *(*string)(unsafe.Pointer(&x))
+}
+
+// bytesView returns a view of the string as a []byte.
+// In unsafe mode, it doesn't incur allocation and copying caused by conversion.
+// In regular safe mode, it is an allocation and copy.
+func bytesView(v string) []byte {
+	if len(v) == 0 {
+		return zeroByteSlice
+	}
+	x := unsafeBytes{uintptr(unsafe.Pointer(&v)), len(v), len(v)}
+	return *(*[]byte)(unsafe.Pointer(&x))
+}