Upgrading vendor folder dependencies.

vendor/github.com/davecgh/go-spew/.travis.yml

@@ -1,14 +1,28 @@
 language: go
+go_import_path: github.com/davecgh/go-spew
 go:
-    - 1.5.4
-    - 1.6.3
-    - 1.7
+    - 1.6.x
+    - 1.7.x
+    - 1.8.x
+    - 1.9.x
+    - 1.10.x
+    - tip
+sudo: false
 install:
-    - go get -v golang.org/x/tools/cmd/cover
+    - go get -v github.com/alecthomas/gometalinter
+    - gometalinter --install
 script:
-    - go test -v -tags=safe ./spew
-    - go test -v -tags=testcgo ./spew -covermode=count -coverprofile=profile.cov
+    - export PATH=$PATH:$HOME/gopath/bin
+    - export GORACE="halt_on_error=1"
+    - test -z "$(gometalinter --disable-all
+      --enable=gofmt
+      --enable=golint
+      --enable=vet
+      --enable=gosimple
+      --enable=unconvert
+      --deadline=4m ./spew | tee /dev/stderr)"
+    - go test -v -race -tags safe ./spew
+    - go test -v -race -tags testcgo ./spew -covermode=atomic -coverprofile=profile.cov
 after_success:
     - go get -v github.com/mattn/goveralls
-    - export PATH=$PATH:$HOME/gopath/bin
     - goveralls -coverprofile=profile.cov -service=travis-ci

vendor/github.com/davecgh/go-spew/LICENSE

@@ -2,7 +2,7 @@ ISC License
 
 Copyright (c) 2012-2016 Dave Collins <dave@davec.name>
 
-Permission to use, copy, modify, and distribute this software for any
+Permission to use, copy, modify, and/or distribute this software for any
 purpose with or without fee is hereby granted, provided that the above
 copyright notice and this permission notice appear in all copies.
 

vendor/github.com/davecgh/go-spew/README.md

@@ -1,12 +1,9 @@
 go-spew
 =======
 
-[![Build Status](https://img.shields.io/travis/davecgh/go-spew.svg)]
-(https://travis-ci.org/davecgh/go-spew) [![ISC License]
-(http://img.shields.io/badge/license-ISC-blue.svg)](http://copyfree.org) [![Coverage Status]
-(https://img.shields.io/coveralls/davecgh/go-spew.svg)]
-(https://coveralls.io/r/davecgh/go-spew?branch=master)
-
+[![Build Status](https://img.shields.io/travis/davecgh/go-spew.svg)](https://travis-ci.org/davecgh/go-spew)
+[![ISC License](http://img.shields.io/badge/license-ISC-blue.svg)](http://copyfree.org)
+[![Coverage Status](https://img.shields.io/coveralls/davecgh/go-spew.svg)](https://coveralls.io/r/davecgh/go-spew?branch=master)
 
 Go-spew implements a deep pretty printer for Go data structures to aid in
 debugging.  A comprehensive suite of tests with 100% test coverage is provided
@@ -21,8 +18,7 @@ post about it
 
 ## Documentation
 
-[![GoDoc](https://img.shields.io/badge/godoc-reference-blue.svg)]
-(http://godoc.org/github.com/davecgh/go-spew/spew)
+[![GoDoc](https://img.shields.io/badge/godoc-reference-blue.svg)](http://godoc.org/github.com/davecgh/go-spew/spew)
 
 Full `go doc` style documentation for the project can be viewed online without
 installing this package by using the excellent GoDoc site here:

vendor/github.com/davecgh/go-spew/spew/bypass.go

@@ -16,7 +16,9 @@
 // when the code is not running on Google App Engine, compiled by GopherJS, and
 // "-tags safe" is not added to the go build command line.  The "disableunsafe"
 // tag is deprecated and thus should not be used.
-// +build !js,!appengine,!safe,!disableunsafe
+// Go versions prior to 1.4 are disabled because they use a different layout
+// for interfaces which make the implementation of unsafeReflectValue more complex.
+// +build !js,!appengine,!safe,!disableunsafe,go1.4
 
 package spew
 
@@ -34,80 +36,49 @@ const (
 	ptrSize = unsafe.Sizeof((*byte)(nil))
 )
 
-var (
-	// offsetPtr, offsetScalar, and offsetFlag are the offsets for the
-	// internal reflect.Value fields.  These values are valid before golang
-	// commit ecccf07e7f9d which changed the format.  The are also valid
-	// after commit 82f48826c6c7 which changed the format again to mirror
-	// the original format.  Code in the init function updates these offsets
-	// as necessary.
-	offsetPtr    = uintptr(ptrSize)
-	offsetScalar = uintptr(0)
-	offsetFlag   = uintptr(ptrSize * 2)
+type flag uintptr
 
-	// flagKindWidth and flagKindShift indicate various bits that the
-	// reflect package uses internally to track kind information.
-	//
-	// flagRO indicates whether or not the value field of a reflect.Value is
-	// read-only.
-	//
-	// flagIndir indicates whether the value field of a reflect.Value is
-	// the actual data or a pointer to the data.
-	//
-	// These values are valid before golang commit 90a7c3c86944 which
-	// changed their positions.  Code in the init function updates these
-	// flags as necessary.
-	flagKindWidth = uintptr(5)
-	flagKindShift = uintptr(flagKindWidth - 1)
-	flagRO        = uintptr(1 << 0)
-	flagIndir     = uintptr(1 << 1)
+var (
+	// flagRO indicates whether the value field of a reflect.Value
+	// is read-only.
+	flagRO flag
+
+	// flagAddr indicates whether the address of the reflect.Value's
+	// value may be taken.
+	flagAddr flag
 )
 
-func init() {
-	// Older versions of reflect.Value stored small integers directly in the
-	// ptr field (which is named val in the older versions).  Versions
-	// between commits ecccf07e7f9d and 82f48826c6c7 added a new field named
-	// scalar for this purpose which unfortunately came before the flag
-	// field, so the offset of the flag field is different for those
-	// versions.
-	//
-	// This code constructs a new reflect.Value from a known small integer
-	// and checks if the size of the reflect.Value struct indicates it has
-	// the scalar field. When it does, the offsets are updated accordingly.
-	vv := reflect.ValueOf(0xf00)
-	if unsafe.Sizeof(vv) == (ptrSize * 4) {
-		offsetScalar = ptrSize * 2
-		offsetFlag = ptrSize * 3
-	}
+// flagKindMask holds the bits that make up the kind
+// part of the flags field. In all the supported versions,
+// it is in the lower 5 bits.
+const flagKindMask = flag(0x1f)
 
-	// Commit 90a7c3c86944 changed the flag positions such that the low
-	// order bits are the kind.  This code extracts the kind from the flags
-	// field and ensures it's the correct type.  When it's not, the flag
-	// order has been changed to the newer format, so the flags are updated
-	// accordingly.
-	upf := unsafe.Pointer(uintptr(unsafe.Pointer(&vv)) + offsetFlag)
-	upfv := *(*uintptr)(upf)
-	flagKindMask := uintptr((1<<flagKindWidth - 1) << flagKindShift)
-	if (upfv&flagKindMask)>>flagKindShift != uintptr(reflect.Int) {
-		flagKindShift = 0
-		flagRO = 1 << 5
-		flagIndir = 1 << 6
+// Different versions of Go have used different
+// bit layouts for the flags type. This table
+// records the known combinations.
+var okFlags = []struct {
+	ro, addr flag
+}{{
+	// From Go 1.4 to 1.5
+	ro:   1 << 5,
+	addr: 1 << 7,
+}, {
+	// Up to Go tip.
+	ro:   1<<5 | 1<<6,
+	addr: 1 << 8,
+}}
 
-		// Commit adf9b30e5594 modified the flags to separate the
-		// flagRO flag into two bits which specifies whether or not the
-		// field is embedded.  This causes flagIndir to move over a bit
-		// and means that flagRO is the combination of either of the
-		// original flagRO bit and the new bit.
-		//
-		// This code detects the change by extracting what used to be
-		// the indirect bit to ensure it's set.  When it's not, the flag
-		// order has been changed to the newer format, so the flags are
-		// updated accordingly.
-		if upfv&flagIndir == 0 {
-			flagRO = 3 << 5
-			flagIndir = 1 << 7
-		}
+var flagValOffset = func() uintptr {
+	field, ok := reflect.TypeOf(reflect.Value{}).FieldByName("flag")
+	if !ok {
+		panic("reflect.Value has no flag field")
 	}
+	return field.Offset
+}()
+
+// flagField returns a pointer to the flag field of a reflect.Value.
+func flagField(v *reflect.Value) *flag {
+	return (*flag)(unsafe.Pointer(uintptr(unsafe.Pointer(v)) + flagValOffset))
 }
 
 // unsafeReflectValue converts the passed reflect.Value into a one that bypasses
@@ -119,34 +90,56 @@ func init() {
 // This allows us to check for implementations of the Stringer and error
 // interfaces to be used for pretty printing ordinarily unaddressable and
 // inaccessible values such as unexported struct fields.
-func unsafeReflectValue(v reflect.Value) (rv reflect.Value) {
-	indirects := 1
-	vt := v.Type()
-	upv := unsafe.Pointer(uintptr(unsafe.Pointer(&v)) + offsetPtr)
-	rvf := *(*uintptr)(unsafe.Pointer(uintptr(unsafe.Pointer(&v)) + offsetFlag))
-	if rvf&flagIndir != 0 {
-		vt = reflect.PtrTo(v.Type())
-		indirects++
-	} else if offsetScalar != 0 {
-		// The value is in the scalar field when it's not one of the
-		// reference types.
-		switch vt.Kind() {
-		case reflect.Uintptr:
-		case reflect.Chan:
-		case reflect.Func:
-		case reflect.Map:
-		case reflect.Ptr:
-		case reflect.UnsafePointer:
-		default:
-			upv = unsafe.Pointer(uintptr(unsafe.Pointer(&v)) +
-				offsetScalar)
+func unsafeReflectValue(v reflect.Value) reflect.Value {
+	if !v.IsValid() || (v.CanInterface() && v.CanAddr()) {
+		return v
+	}
+	flagFieldPtr := flagField(&v)
+	*flagFieldPtr &^= flagRO
+	*flagFieldPtr |= flagAddr
+	return v
+}
+
+// Sanity checks against future reflect package changes
+// to the type or semantics of the Value.flag field.
+func init() {
+	field, ok := reflect.TypeOf(reflect.Value{}).FieldByName("flag")
+	if !ok {
+		panic("reflect.Value has no flag field")
+	}
+	if field.Type.Kind() != reflect.TypeOf(flag(0)).Kind() {
+		panic("reflect.Value flag field has changed kind")
+	}
+	type t0 int
+	var t struct {
+		A t0
+		// t0 will have flagEmbedRO set.
+		t0
+		// a will have flagStickyRO set
+		a t0
+	}
+	vA := reflect.ValueOf(t).FieldByName("A")
+	va := reflect.ValueOf(t).FieldByName("a")
+	vt0 := reflect.ValueOf(t).FieldByName("t0")
+
+	// Infer flagRO from the difference between the flags
+	// for the (otherwise identical) fields in t.
+	flagPublic := *flagField(&vA)
+	flagWithRO := *flagField(&va) | *flagField(&vt0)
+	flagRO = flagPublic ^ flagWithRO
+
+	// Infer flagAddr from the difference between a value
+	// taken from a pointer and not.
+	vPtrA := reflect.ValueOf(&t).Elem().FieldByName("A")
+	flagNoPtr := *flagField(&vA)
+	flagPtr := *flagField(&vPtrA)
+	flagAddr = flagNoPtr ^ flagPtr
+
+	// Check that the inferred flags tally with one of the known versions.
+	for _, f := range okFlags {
+		if flagRO == f.ro && flagAddr == f.addr {
+			return
 		}
 	}
-
-	pv := reflect.NewAt(vt, upv)
-	rv = pv
-	for i := 0; i < indirects; i++ {
-		rv = rv.Elem()
-	}
-	return rv
+	panic("reflect.Value read-only flag has changed semantics")
 }

vendor/github.com/davecgh/go-spew/spew/bypasssafe.go

@@ -16,7 +16,7 @@
 // when the code is running on Google App Engine, compiled by GopherJS, or
 // "-tags safe" is added to the go build command line.  The "disableunsafe"
 // tag is deprecated and thus should not be used.
-// +build js appengine safe disableunsafe
+// +build js appengine safe disableunsafe !go1.4
 
 package spew
 

vendor/github.com/davecgh/go-spew/spew/common.go

@@ -180,7 +180,7 @@ func printComplex(w io.Writer, c complex128, floatPrecision int) {
 	w.Write(closeParenBytes)
 }
 
-// printHexPtr outputs a uintptr formatted as hexidecimal with a leading '0x'
+// printHexPtr outputs a uintptr formatted as hexadecimal with a leading '0x'
 // prefix to Writer w.
 func printHexPtr(w io.Writer, p uintptr) {
 	// Null pointer.

vendor/github.com/davecgh/go-spew/spew/dump.go

@@ -35,16 +35,16 @@ var (
 
 	// cCharRE is a regular expression that matches a cgo char.
 	// It is used to detect character arrays to hexdump them.
-	cCharRE = regexp.MustCompile("^.*\\._Ctype_char$")
+	cCharRE = regexp.MustCompile(`^.*\._Ctype_char$`)
 
 	// cUnsignedCharRE is a regular expression that matches a cgo unsigned
 	// char.  It is used to detect unsigned character arrays to hexdump
 	// them.
-	cUnsignedCharRE = regexp.MustCompile("^.*\\._Ctype_unsignedchar$")
+	cUnsignedCharRE = regexp.MustCompile(`^.*\._Ctype_unsignedchar$`)
 
 	// cUint8tCharRE is a regular expression that matches a cgo uint8_t.
 	// It is used to detect uint8_t arrays to hexdump them.
-	cUint8tCharRE = regexp.MustCompile("^.*\\._Ctype_uint8_t$")
+	cUint8tCharRE = regexp.MustCompile(`^.*\._Ctype_uint8_t$`)
 )
 
 // dumpState contains information about the state of a dump operation.
@@ -143,10 +143,10 @@ func (d *dumpState) dumpPtr(v reflect.Value) {
 	// Display dereferenced value.
 	d.w.Write(openParenBytes)
 	switch {
-	case nilFound == true:
+	case nilFound:
 		d.w.Write(nilAngleBytes)
 
-	case cycleFound == true:
+	case cycleFound:
 		d.w.Write(circularBytes)
 
 	default:

vendor/github.com/davecgh/go-spew/spew/dump_test.go

@@ -768,7 +768,7 @@ func addUintptrDumpTests() {
 
 func addUnsafePointerDumpTests() {
 	// Null pointer.
-	v := unsafe.Pointer(uintptr(0))
+	v := unsafe.Pointer(nil)
 	nv := (*unsafe.Pointer)(nil)
 	pv := &v
 	vAddr := fmt.Sprintf("%p", pv)

vendor/github.com/davecgh/go-spew/spew/dumpcgo_test.go

@@ -82,18 +82,20 @@ func addCgoDumpTests() {
 	v5Len := fmt.Sprintf("%d", v5l)
 	v5Cap := fmt.Sprintf("%d", v5c)
 	v5t := "[6]testdata._Ctype_uint8_t"
+	v5t2 := "[6]testdata._Ctype_uchar"
 	v5s := "(len=" + v5Len + " cap=" + v5Cap + ") " +
 		"{\n 00000000  74 65 73 74 35 00                               " +
 		"  |test5.|\n}"
-	addDumpTest(v5, "("+v5t+") "+v5s+"\n")
+	addDumpTest(v5, "("+v5t+") "+v5s+"\n", "("+v5t2+") "+v5s+"\n")
 
 	// C typedefed unsigned char array.
 	v6, v6l, v6c := testdata.GetCgoTypdefedUnsignedCharArray()
 	v6Len := fmt.Sprintf("%d", v6l)
 	v6Cap := fmt.Sprintf("%d", v6c)
 	v6t := "[6]testdata._Ctype_custom_uchar_t"
+	v6t2 := "[6]testdata._Ctype_uchar"
 	v6s := "(len=" + v6Len + " cap=" + v6Cap + ") " +
 		"{\n 00000000  74 65 73 74 36 00                               " +
 		"  |test6.|\n}"
-	addDumpTest(v6, "("+v6t+") "+v6s+"\n")
+	addDumpTest(v6, "("+v6t+") "+v6s+"\n", "("+v6t2+") "+v6s+"\n")
 }

vendor/github.com/davecgh/go-spew/spew/format.go

@@ -182,10 +182,10 @@ func (f *formatState) formatPtr(v reflect.Value) {
 
 	// Display dereferenced value.
 	switch {
-	case nilFound == true:
+	case nilFound:
 		f.fs.Write(nilAngleBytes)
 
-	case cycleFound == true:
+	case cycleFound:
 		f.fs.Write(circularShortBytes)
 
 	default:

vendor/github.com/davecgh/go-spew/spew/format_test.go

@@ -1083,7 +1083,7 @@ func addUintptrFormatterTests() {
 
 func addUnsafePointerFormatterTests() {
 	// Null pointer.
-	v := unsafe.Pointer(uintptr(0))
+	v := unsafe.Pointer(nil)
 	nv := (*unsafe.Pointer)(nil)
 	pv := &v
 	vAddr := fmt.Sprintf("%p", pv)
@@ -1536,14 +1536,14 @@ func TestPrintSortedKeys(t *testing.T) {
 		t.Errorf("Sorted keys mismatch 3:\n  %v %v", s, expected)
 	}
 
-	s = cfg.Sprint(map[testStruct]int{testStruct{1}: 1, testStruct{3}: 3, testStruct{2}: 2})
+	s = cfg.Sprint(map[testStruct]int{{1}: 1, {3}: 3, {2}: 2})
 	expected = "map[ts.1:1 ts.2:2 ts.3:3]"
 	if s != expected {
 		t.Errorf("Sorted keys mismatch 4:\n  %v %v", s, expected)
 	}
 
 	if !spew.UnsafeDisabled {
-		s = cfg.Sprint(map[testStructP]int{testStructP{1}: 1, testStructP{3}: 3, testStructP{2}: 2})
+		s = cfg.Sprint(map[testStructP]int{{1}: 1, {3}: 3, {2}: 2})
 		expected = "map[ts.1:1 ts.2:2 ts.3:3]"
 		if s != expected {
 			t.Errorf("Sorted keys mismatch 5:\n  %v %v", s, expected)

vendor/github.com/davecgh/go-spew/spew/internal_test.go

@@ -36,10 +36,7 @@ type dummyFmtState struct {
 }
 
 func (dfs *dummyFmtState) Flag(f int) bool {
-	if f == int('+') {
-		return true
-	}
-	return false
+	return f == int('+')
 }
 
 func (dfs *dummyFmtState) Precision() (int, bool) {

vendor/github.com/davecgh/go-spew/spew/internalunsafe_test.go

@@ -16,7 +16,7 @@
 // when the code is not running on Google App Engine, compiled by GopherJS, and
 // "-tags safe" is not added to the go build command line.  The "disableunsafe"
 // tag is deprecated and thus should not be used.
-// +build !js,!appengine,!safe,!disableunsafe
+// +build !js,!appengine,!safe,!disableunsafe,go1.4
 
 /*
 This test file is part of the spew package rather than than the spew_test
@@ -30,7 +30,6 @@ import (
 	"bytes"
 	"reflect"
 	"testing"
-	"unsafe"
 )
 
 // changeKind uses unsafe to intentionally change the kind of a reflect.Value to
@@ -38,13 +37,13 @@ import (
 // fallback code which punts to the standard fmt library for new types that
 // might get added to the language.
 func changeKind(v *reflect.Value, readOnly bool) {
-	rvf := (*uintptr)(unsafe.Pointer(uintptr(unsafe.Pointer(v)) + offsetFlag))
-	*rvf = *rvf | ((1<<flagKindWidth - 1) << flagKindShift)
+	flags := flagField(v)
 	if readOnly {
-		*rvf |= flagRO
+		*flags |= flagRO
 	} else {
-		*rvf &= ^uintptr(flagRO)
+		*flags &^= flagRO
 	}
+	*flags |= flagKindMask
 }
 
 // TestAddedReflectValue tests functionaly of the dump and formatter code which