Bump go-connections and canonical go dependencies to the latest version

Logging bugfix for github.com/docker/go-connections
github.com/docker/go rebased to go 1.6

Signed-off-by: Ying Li <ying.li@docker.com>

Godeps/Godeps.json

@@ -97,13 +97,13 @@
 		},
 		{
 			"ImportPath": "github.com/docker/go-connections/tlsconfig",
-			"Comment": "v0.1.2-7-g6e4c13d",
-			"Rev": "6e4c13dc022344c3623c9eacbaf7cfd0fa9fcae3"
+			"Comment": "v0.1.2-16-gf549a93",
+			"Rev": "f549a9393d05688dff0992ef3efd8bbe6c628aeb"
 		},
 		{
 			"ImportPath": "github.com/docker/go/canonical/json",
-			"Comment": "v1.5.1-1-1-gbaf439e",
-			"Rev": "baf439e6c161bd2106346fc8022b74ac2444e311"
+			"Comment": "v1.5.1-1-6-gd30aec9",
+			"Rev": "d30aec9fd63c35133f8f79c3412ad91a3b08be06"
 		},
 		{
 			"ImportPath": "github.com/docker/libtrust",

Godeps/_workspace/src/github.com/docker/go-connections/tlsconfig/config.go

@@ -72,12 +72,7 @@ func certPool(caFile string) (*x509.CertPool, error) {
 	if !certPool.AppendCertsFromPEM(pem) {
 		return nil, fmt.Errorf("failed to append certificates from PEM file: %q", caFile)
 	}
-	s := certPool.Subjects()
-	subjects := make([]string, len(s))
-	for i, subject := range s {
-		subjects[i] = string(subject)
-	}
-	logrus.Debugf("Trusting certs with subjects: %v", subjects)
+	logrus.Debugf("Trusting %d certs", len(certPool.Subjects()))
 	return certPool, nil
 }
 

Godeps/_workspace/src/github.com/docker/go/canonical/json/decode.go

@@ -37,6 +37,7 @@ import (
 // To unmarshal JSON into a struct, Unmarshal matches incoming object
 // keys to the keys used by Marshal (either the struct field name or its tag),
 // preferring an exact match but also accepting a case-insensitive match.
+// Unmarshal will only set exported fields of the struct.
 //
 // To unmarshal JSON into an interface value,
 // Unmarshal stores one of these in the interface value:
@@ -48,16 +49,26 @@ import (
 //	map[string]interface{}, for JSON objects
 //	nil for JSON null
 //
-// To unmarshal a JSON array into a slice, Unmarshal resets the slice to nil
-// and then appends each element to the slice.
+// To unmarshal a JSON array into a slice, Unmarshal resets the slice length
+// to zero and then appends each element to the slice.
+// As a special case, to unmarshal an empty JSON array into a slice,
+// Unmarshal replaces the slice with a new empty slice.
 //
-// To unmarshal a JSON object into a map, Unmarshal replaces the map
-// with an empty map and then adds key-value pairs from the object to
-// the map.
+// To unmarshal a JSON array into a Go array, Unmarshal decodes
+// JSON array elements into corresponding Go array elements.
+// If the Go array is smaller than the JSON array,
+// the additional JSON array elements are discarded.
+// If the JSON array is smaller than the Go array,
+// the additional Go array elements are set to zero values.
+//
+// To unmarshal a JSON object into a string-keyed map, Unmarshal first
+// establishes a map to use, If the map is nil, Unmarshal allocates a new map.
+// Otherwise Unmarshal reuses the existing map, keeping existing entries.
+// Unmarshal then stores key-value pairs from the JSON object into the map.
 //
 // If a JSON value is not appropriate for a given target type,
 // or if a JSON number overflows the target type, Unmarshal
-// skips that field and completes the unmarshalling as best it can.
+// skips that field and completes the unmarshaling as best it can.
 // If no more serious errors are encountered, Unmarshal returns
 // an UnmarshalTypeError describing the earliest such error.
 //
@@ -174,6 +185,66 @@ func (n Number) Int64() (int64, error) {
 	return strconv.ParseInt(string(n), 10, 64)
 }
 
+// isValidNumber reports whether s is a valid JSON number literal.
+func isValidNumber(s string) bool {
+	// This function implements the JSON numbers grammar.
+	// See https://tools.ietf.org/html/rfc7159#section-6
+	// and http://json.org/number.gif
+
+	if s == "" {
+		return false
+	}
+
+	// Optional -
+	if s[0] == '-' {
+		s = s[1:]
+		if s == "" {
+			return false
+		}
+	}
+
+	// Digits
+	switch {
+	default:
+		return false
+
+	case s[0] == '0':
+		s = s[1:]
+
+	case '1' <= s[0] && s[0] <= '9':
+		s = s[1:]
+		for len(s) > 0 && '0' <= s[0] && s[0] <= '9' {
+			s = s[1:]
+		}
+	}
+
+	// . followed by 1 or more digits.
+	if len(s) >= 2 && s[0] == '.' && '0' <= s[1] && s[1] <= '9' {
+		s = s[2:]
+		for len(s) > 0 && '0' <= s[0] && s[0] <= '9' {
+			s = s[1:]
+		}
+	}
+
+	// e or E followed by an optional - or + and
+	// 1 or more digits.
+	if len(s) >= 2 && (s[0] == 'e' || s[0] == 'E') {
+		s = s[1:]
+		if s[0] == '+' || s[0] == '-' {
+			s = s[1:]
+			if s == "" {
+				return false
+			}
+		}
+		for len(s) > 0 && '0' <= s[0] && s[0] <= '9' {
+			s = s[1:]
+		}
+	}
+
+	// Make sure we are at the end.
+	return s == ""
+}
+
 // decodeState represents the state while decoding a JSON value.
 type decodeState struct {
 	data       []byte
@@ -242,7 +313,7 @@ func (d *decodeState) scanWhile(op int) int {
 			newOp = d.scan.eof()
 			d.off = len(d.data) + 1 // mark processed EOF with len+1
 		} else {
-			c := int(d.data[d.off])
+			c := d.data[d.off]
 			d.off++
 			newOp = d.scan.step(&d.scan, c)
 		}
@@ -758,7 +829,7 @@ func (d *decodeState) literalStore(item []byte, v reflect.Value, fromQuoted bool
 				d.saveError(err)
 				break
 			}
-			v.Set(reflect.ValueOf(b[0:n]))
+			v.SetBytes(b[:n])
 		case reflect.String:
 			v.SetString(string(s))
 		case reflect.Interface:
@@ -782,6 +853,9 @@ func (d *decodeState) literalStore(item []byte, v reflect.Value, fromQuoted bool
 		default:
 			if v.Kind() == reflect.String && v.Type() == numberType {
 				v.SetString(s)
+				if !isValidNumber(s) {
+					d.error(fmt.Errorf("json: invalid number literal, trying to unmarshal %q into Number", item))
+				}
 				break
 			}
 			if fromQuoted {

Godeps/_workspace/src/github.com/docker/go/canonical/json/encode.go

@@ -14,6 +14,7 @@ import (
 	"bytes"
 	"encoding"
 	"encoding/base64"
+	"fmt"
 	"math"
 	"reflect"
 	"runtime"
@@ -30,7 +31,10 @@ import (
 // Marshal traverses the value v recursively.
 // If an encountered value implements the Marshaler interface
 // and is not a nil pointer, Marshal calls its MarshalJSON method
-// to produce JSON.  The nil pointer exception is not strictly necessary
+// to produce JSON. If no MarshalJSON method is present but the
+// value implements encoding.TextMarshaler instead, Marshal calls
+// its MarshalText method.
+// The nil pointer exception is not strictly necessary
 // but mimics a similar, necessary exception in the behavior of
 // UnmarshalJSON.
 //
@@ -457,12 +461,10 @@ func textMarshalerEncoder(e *encodeState, v reflect.Value, quoted bool) {
 	}
 	m := v.Interface().(encoding.TextMarshaler)
 	b, err := m.MarshalText()
-	if err == nil {
-		_, err = e.stringBytes(b)
-	}
 	if err != nil {
 		e.error(&MarshalerError{v.Type(), err})
 	}
+	e.stringBytes(b)
 }
 
 func addrTextMarshalerEncoder(e *encodeState, v reflect.Value, quoted bool) {
@@ -473,12 +475,10 @@ func addrTextMarshalerEncoder(e *encodeState, v reflect.Value, quoted bool) {
 	}
 	m := va.Interface().(encoding.TextMarshaler)
 	b, err := m.MarshalText()
-	if err == nil {
-		_, err = e.stringBytes(b)
-	}
 	if err != nil {
 		e.error(&MarshalerError{v.Type(), err})
 	}
+	e.stringBytes(b)
 }
 
 func boolEncoder(e *encodeState, v reflect.Value, quoted bool) {
@@ -548,9 +548,14 @@ var (
 func stringEncoder(e *encodeState, v reflect.Value, quoted bool) {
 	if v.Type() == numberType {
 		numStr := v.String()
+		// In Go1.5 the empty string encodes to "0", while this is not a valid number literal
+		// we keep compatibility so check validity after this.
 		if numStr == "" {
 			numStr = "0" // Number's zero-val
 		}
+		if !isValidNumber(numStr) {
+			e.error(fmt.Errorf("json: invalid number literal %q", numStr))
+		}
 		e.WriteString(numStr)
 		return
 	}
@@ -798,7 +803,7 @@ func (sv stringValues) Less(i, j int) bool { return sv.get(i) < sv.get(j) }
 func (sv stringValues) get(i int) string   { return sv[i].String() }
 
 // NOTE: keep in sync with stringBytes below.
-func (e *encodeState) string(s string) (int, error) {
+func (e *encodeState) string(s string) int {
 	len0 := e.Len()
 	e.WriteByte('"')
 	start := 0
@@ -876,11 +881,11 @@ func (e *encodeState) string(s string) (int, error) {
 		e.WriteString(s[start:])
 	}
 	e.WriteByte('"')
-	return e.Len() - len0, nil
+	return e.Len() - len0
 }
 
 // NOTE: keep in sync with string above.
-func (e *encodeState) stringBytes(s []byte) (int, error) {
+func (e *encodeState) stringBytes(s []byte) int {
 	len0 := e.Len()
 	e.WriteByte('"')
 	start := 0
@@ -958,7 +963,7 @@ func (e *encodeState) stringBytes(s []byte) (int, error) {
 		e.Write(s[start:])
 	}
 	e.WriteByte('"')
-	return e.Len() - len0, nil
+	return e.Len() - len0
 }
 
 // A field represents a single field found in a struct.
@@ -1052,7 +1057,7 @@ func typeFields(t reflect.Type) []field {
 			// Scan f.typ for fields to include.
 			for i := 0; i < f.typ.NumField(); i++ {
 				sf := f.typ.Field(i)
-				if sf.PkgPath != "" { // unexported
+				if sf.PkgPath != "" && !sf.Anonymous { // unexported
 					continue
 				}
 				tag := sf.Tag.Get("json")

Godeps/_workspace/src/github.com/docker/go/canonical/json/indent.go

@@ -36,7 +36,7 @@ func compact(dst *bytes.Buffer, src []byte, escape bool) error {
 			dst.WriteByte(hex[src[i+2]&0xF])
 			start = i + 3
 		}
-		v := scan.step(&scan, int(c))
+		v := scan.step(&scan, c)
 		if v >= scanSkipSpace {
 			if v == scanError {
 				break
@@ -70,8 +70,12 @@ func newline(dst *bytes.Buffer, prefix, indent string, depth int) {
 // indented line beginning with prefix followed by one or more
 // copies of indent according to the indentation nesting.
 // The data appended to dst does not begin with the prefix nor
-// any indentation, and has no trailing newline, to make it
-// easier to embed inside other formatted JSON data.
+// any indentation, to make it easier to embed inside other formatted JSON data.
+// Although leading space characters (space, tab, carriage return, newline)
+// at the beginning of src are dropped, trailing space characters
+// at the end of src are preserved and copied to dst.
+// For example, if src has no trailing spaces, neither will dst;
+// if src ends in a trailing newline, so will dst.
 func Indent(dst *bytes.Buffer, src []byte, prefix, indent string) error {
 	origLen := dst.Len()
 	var scan scanner
@@ -80,7 +84,7 @@ func Indent(dst *bytes.Buffer, src []byte, prefix, indent string) error {
 	depth := 0
 	for _, c := range src {
 		scan.bytes++
-		v := scan.step(&scan, int(c))
+		v := scan.step(&scan, c)
 		if v == scanSkipSpace {
 			continue
 		}

Godeps/_workspace/src/github.com/docker/go/canonical/json/scanner.go

@@ -21,7 +21,7 @@ func checkValid(data []byte, scan *scanner) error {
 	scan.reset()
 	for _, c := range data {
 		scan.bytes++
-		if scan.step(scan, int(c)) == scanError {
+		if scan.step(scan, c) == scanError {
 			return scan.err
 		}
 	}
@@ -37,7 +37,7 @@ func checkValid(data []byte, scan *scanner) error {
 func nextValue(data []byte, scan *scanner) (value, rest []byte, err error) {
 	scan.reset()
 	for i, c := range data {
-		v := scan.step(scan, int(c))
+		v := scan.step(scan, c)
 		if v >= scanEndObject {
 			switch v {
 			// probe the scanner with a space to determine whether we will
@@ -50,7 +50,7 @@ func nextValue(data []byte, scan *scanner) (value, rest []byte, err error) {
 			case scanError:
 				return nil, nil, scan.err
 			case scanEnd:
-				return data[0:i], data[i:], nil
+				return data[:i], data[i:], nil
 			}
 		}
 	}
@@ -85,7 +85,7 @@ type scanner struct {
 	// Also tried using an integer constant and a single func
 	// with a switch, but using the func directly was 10% faster
 	// on a 64-bit Mac Mini, and it's nicer to read.
-	step func(*scanner, int) int
+	step func(*scanner, byte) int
 
 	// Reached end of top-level value.
 	endTop bool
@@ -99,7 +99,7 @@ type scanner struct {
 	// 1-byte redo (see undo method)
 	redo      bool
 	redoCode  int
-	redoState func(*scanner, int) int
+	redoState func(*scanner, byte) int
 
 	// total bytes consumed, updated by decoder.Decode
 	bytes int64
@@ -188,13 +188,13 @@ func (s *scanner) popParseState() {
 	}
 }
 
-func isSpace(c rune) bool {
+func isSpace(c byte) bool {
 	return c == ' ' || c == '\t' || c == '\r' || c == '\n'
 }
 
 // stateBeginValueOrEmpty is the state after reading `[`.
-func stateBeginValueOrEmpty(s *scanner, c int) int {
-	if c <= ' ' && isSpace(rune(c)) {
+func stateBeginValueOrEmpty(s *scanner, c byte) int {
+	if c <= ' ' && isSpace(c) {
 		return scanSkipSpace
 	}
 	if c == ']' {
@@ -204,8 +204,8 @@ func stateBeginValueOrEmpty(s *scanner, c int) int {
 }
 
 // stateBeginValue is the state at the beginning of the input.
-func stateBeginValue(s *scanner, c int) int {
-	if c <= ' ' && isSpace(rune(c)) {
+func stateBeginValue(s *scanner, c byte) int {
+	if c <= ' ' && isSpace(c) {
 		return scanSkipSpace
 	}
 	switch c {
@@ -244,8 +244,8 @@ func stateBeginValue(s *scanner, c int) int {
 }
 
 // stateBeginStringOrEmpty is the state after reading `{`.
-func stateBeginStringOrEmpty(s *scanner, c int) int {
-	if c <= ' ' && isSpace(rune(c)) {
+func stateBeginStringOrEmpty(s *scanner, c byte) int {
+	if c <= ' ' && isSpace(c) {
 		return scanSkipSpace
 	}
 	if c == '}' {
@@ -257,8 +257,8 @@ func stateBeginStringOrEmpty(s *scanner, c int) int {
 }
 
 // stateBeginString is the state after reading `{"key": value,`.
-func stateBeginString(s *scanner, c int) int {
-	if c <= ' ' && isSpace(rune(c)) {
+func stateBeginString(s *scanner, c byte) int {
+	if c <= ' ' && isSpace(c) {
 		return scanSkipSpace
 	}
 	if c == '"' {
@@ -270,7 +270,7 @@ func stateBeginString(s *scanner, c int) int {
 
 // stateEndValue is the state after completing a value,
 // such as after reading `{}` or `true` or `["x"`.
-func stateEndValue(s *scanner, c int) int {
+func stateEndValue(s *scanner, c byte) int {
 	n := len(s.parseState)
 	if n == 0 {
 		// Completed top-level before the current byte.
@@ -278,7 +278,7 @@ func stateEndValue(s *scanner, c int) int {
 		s.endTop = true
 		return stateEndTop(s, c)
 	}
-	if c <= ' ' && isSpace(rune(c)) {
+	if c <= ' ' && isSpace(c) {
 		s.step = stateEndValue
 		return scanSkipSpace
 	}
@@ -319,7 +319,7 @@ func stateEndValue(s *scanner, c int) int {
 // stateEndTop is the state after finishing the top-level value,
 // such as after reading `{}` or `[1,2,3]`.
 // Only space characters should be seen now.
-func stateEndTop(s *scanner, c int) int {
+func stateEndTop(s *scanner, c byte) int {
 	if c != ' ' && c != '\t' && c != '\r' && c != '\n' {
 		// Complain about non-space byte on next call.
 		s.error(c, "after top-level value")
@@ -328,7 +328,7 @@ func stateEndTop(s *scanner, c int) int {
 }
 
 // stateInString is the state after reading `"`.
-func stateInString(s *scanner, c int) int {
+func stateInString(s *scanner, c byte) int {
 	if c == '"' {
 		s.step = stateEndValue
 		return scanContinue
@@ -344,13 +344,12 @@ func stateInString(s *scanner, c int) int {
 }
 
 // stateInStringEsc is the state after reading `"\` during a quoted string.
-func stateInStringEsc(s *scanner, c int) int {
+func stateInStringEsc(s *scanner, c byte) int {
 	switch c {
 	case 'b', 'f', 'n', 'r', 't', '\\', '/', '"':
 		s.step = stateInString
 		return scanContinue
-	}
-	if c == 'u' {
+	case 'u':
 		s.step = stateInStringEscU
 		return scanContinue
 	}
@@ -358,7 +357,7 @@ func stateInStringEsc(s *scanner, c int) int {
 }
 
 // stateInStringEscU is the state after reading `"\u` during a quoted string.
-func stateInStringEscU(s *scanner, c int) int {
+func stateInStringEscU(s *scanner, c byte) int {
 	if '0' <= c && c <= '9' || 'a' <= c && c <= 'f' || 'A' <= c && c <= 'F' {
 		s.step = stateInStringEscU1
 		return scanContinue
@@ -368,7 +367,7 @@ func stateInStringEscU(s *scanner, c int) int {
 }
 
 // stateInStringEscU1 is the state after reading `"\u1` during a quoted string.
-func stateInStringEscU1(s *scanner, c int) int {
+func stateInStringEscU1(s *scanner, c byte) int {
 	if '0' <= c && c <= '9' || 'a' <= c && c <= 'f' || 'A' <= c && c <= 'F' {
 		s.step = stateInStringEscU12
 		return scanContinue
@@ -378,7 +377,7 @@ func stateInStringEscU1(s *scanner, c int) int {
 }
 
 // stateInStringEscU12 is the state after reading `"\u12` during a quoted string.
-func stateInStringEscU12(s *scanner, c int) int {
+func stateInStringEscU12(s *scanner, c byte) int {
 	if '0' <= c && c <= '9' || 'a' <= c && c <= 'f' || 'A' <= c && c <= 'F' {
 		s.step = stateInStringEscU123
 		return scanContinue
@@ -388,7 +387,7 @@ func stateInStringEscU12(s *scanner, c int) int {
 }
 
 // stateInStringEscU123 is the state after reading `"\u123` during a quoted string.
-func stateInStringEscU123(s *scanner, c int) int {
+func stateInStringEscU123(s *scanner, c byte) int {
 	if '0' <= c && c <= '9' || 'a' <= c && c <= 'f' || 'A' <= c && c <= 'F' {
 		s.step = stateInString
 		return scanContinue
@@ -398,7 +397,7 @@ func stateInStringEscU123(s *scanner, c int) int {
 }
 
 // stateNeg is the state after reading `-` during a number.
-func stateNeg(s *scanner, c int) int {
+func stateNeg(s *scanner, c byte) int {
 	if c == '0' {
 		s.step = state0
 		return scanContinue
@@ -412,7 +411,7 @@ func stateNeg(s *scanner, c int) int {
 
 // state1 is the state after reading a non-zero integer during a number,
 // such as after reading `1` or `100` but not `0`.
-func state1(s *scanner, c int) int {
+func state1(s *scanner, c byte) int {
 	if '0' <= c && c <= '9' {
 		s.step = state1
 		return scanContinue
@@ -421,7 +420,7 @@ func state1(s *scanner, c int) int {
 }
 
 // state0 is the state after reading `0` during a number.
-func state0(s *scanner, c int) int {
+func state0(s *scanner, c byte) int {
 	if c == '.' {
 		s.step = stateDot
 		return scanContinue
@@ -435,7 +434,7 @@ func state0(s *scanner, c int) int {
 
 // stateDot is the state after reading the integer and decimal point in a number,
 // such as after reading `1.`.
-func stateDot(s *scanner, c int) int {
+func stateDot(s *scanner, c byte) int {
 	if '0' <= c && c <= '9' {
 		s.step = stateDot0
 		return scanContinue
@@ -445,9 +444,8 @@ func stateDot(s *scanner, c int) int {
 
 // stateDot0 is the state after reading the integer, decimal point, and subsequent
 // digits of a number, such as after reading `3.14`.
-func stateDot0(s *scanner, c int) int {
+func stateDot0(s *scanner, c byte) int {
 	if '0' <= c && c <= '9' {
-		s.step = stateDot0
 		return scanContinue
 	}
 	if c == 'e' || c == 'E' {
@@ -459,12 +457,8 @@ func stateDot0(s *scanner, c int) int {
 
 // stateE is the state after reading the mantissa and e in a number,
 // such as after reading `314e` or `0.314e`.
-func stateE(s *scanner, c int) int {
-	if c == '+' {
-		s.step = stateESign
-		return scanContinue
-	}
-	if c == '-' {
+func stateE(s *scanner, c byte) int {
+	if c == '+' || c == '-' {
 		s.step = stateESign
 		return scanContinue
 	}
@@ -473,7 +467,7 @@ func stateE(s *scanner, c int) int {
 
 // stateESign is the state after reading the mantissa, e, and sign in a number,
 // such as after reading `314e-` or `0.314e+`.
-func stateESign(s *scanner, c int) int {
+func stateESign(s *scanner, c byte) int {
 	if '0' <= c && c <= '9' {
 		s.step = stateE0
 		return scanContinue
@@ -484,16 +478,15 @@ func stateESign(s *scanner, c int) int {
 // stateE0 is the state after reading the mantissa, e, optional sign,
 // and at least one digit of the exponent in a number,
 // such as after reading `314e-2` or `0.314e+1` or `3.14e0`.
-func stateE0(s *scanner, c int) int {
+func stateE0(s *scanner, c byte) int {
 	if '0' <= c && c <= '9' {
-		s.step = stateE0
 		return scanContinue
 	}
 	return stateEndValue(s, c)
 }
 
 // stateT is the state after reading `t`.
-func stateT(s *scanner, c int) int {
+func stateT(s *scanner, c byte) int {
 	if c == 'r' {
 		s.step = stateTr
 		return scanContinue
@@ -502,7 +495,7 @@ func stateT(s *scanner, c int) int {
 }
 
 // stateTr is the state after reading `tr`.
-func stateTr(s *scanner, c int) int {
+func stateTr(s *scanner, c byte) int {
 	if c == 'u' {
 		s.step = stateTru
 		return scanContinue
@@ -511,7 +504,7 @@ func stateTr(s *scanner, c int) int {
 }
 
 // stateTru is the state after reading `tru`.
-func stateTru(s *scanner, c int) int {
+func stateTru(s *scanner, c byte) int {
 	if c == 'e' {
 		s.step = stateEndValue
 		return scanContinue
@@ -520,7 +513,7 @@ func stateTru(s *scanner, c int) int {
 }
 
 // stateF is the state after reading `f`.
-func stateF(s *scanner, c int) int {
+func stateF(s *scanner, c byte) int {
 	if c == 'a' {
 		s.step = stateFa
 		return scanContinue
@@ -529,7 +522,7 @@ func stateF(s *scanner, c int) int {
 }
 
 // stateFa is the state after reading `fa`.
-func stateFa(s *scanner, c int) int {
+func stateFa(s *scanner, c byte) int {
 	if c == 'l' {
 		s.step = stateFal
 		return scanContinue
@@ -538,7 +531,7 @@ func stateFa(s *scanner, c int) int {
 }
 
 // stateFal is the state after reading `fal`.
-func stateFal(s *scanner, c int) int {
+func stateFal(s *scanner, c byte) int {
 	if c == 's' {
 		s.step = stateFals
 		return scanContinue
@@ -547,7 +540,7 @@ func stateFal(s *scanner, c int) int {
 }
 
 // stateFals is the state after reading `fals`.
-func stateFals(s *scanner, c int) int {
+func stateFals(s *scanner, c byte) int {
 	if c == 'e' {
 		s.step = stateEndValue
 		return scanContinue
@@ -556,7 +549,7 @@ func stateFals(s *scanner, c int) int {
 }
 
 // stateN is the state after reading `n`.
-func stateN(s *scanner, c int) int {
+func stateN(s *scanner, c byte) int {
 	if c == 'u' {
 		s.step = stateNu
 		return scanContinue
@@ -565,7 +558,7 @@ func stateN(s *scanner, c int) int {
 }
 
 // stateNu is the state after reading `nu`.
-func stateNu(s *scanner, c int) int {
+func stateNu(s *scanner, c byte) int {
 	if c == 'l' {
 		s.step = stateNul
 		return scanContinue
@@ -574,7 +567,7 @@ func stateNu(s *scanner, c int) int {
 }
 
 // stateNul is the state after reading `nul`.
-func stateNul(s *scanner, c int) int {
+func stateNul(s *scanner, c byte) int {
 	if c == 'l' {
 		s.step = stateEndValue
 		return scanContinue
@@ -584,19 +577,19 @@ func stateNul(s *scanner, c int) int {
 
 // stateError is the state after reaching a syntax error,
 // such as after reading `[1}` or `5.1.2`.
-func stateError(s *scanner, c int) int {
+func stateError(s *scanner, c byte) int {
 	return scanError
 }
 
 // error records an error and switches to the error state.
-func (s *scanner) error(c int, context string) int {
+func (s *scanner) error(c byte, context string) int {
 	s.step = stateError
 	s.err = &SyntaxError{"invalid character " + quoteChar(c) + " " + context, s.bytes}
 	return scanError
 }
 
 // quoteChar formats c as a quoted character literal
-func quoteChar(c int) string {
+func quoteChar(c byte) string {
 	// special cases - different from quoted strings
 	if c == '\'' {
 		return `'\''`
@@ -623,7 +616,7 @@ func (s *scanner) undo(scanCode int) {
 }
 
 // stateRedo helps implement the scanner's 1-byte undo.
-func stateRedo(s *scanner, c int) int {
+func stateRedo(s *scanner, c byte) int {
 	s.redo = false
 	s.step = s.redoState
 	return s.redoCode

Godeps/_workspace/src/github.com/docker/go/canonical/json/stream.go

@@ -90,7 +90,7 @@ Input:
 		// Look in the buffer for a new value.
 		for i, c := range dec.buf[scanp:] {
 			dec.scan.bytes++
-			v := dec.scan.step(&dec.scan, int(c))
+			v := dec.scan.step(&dec.scan, c)
 			if v == scanEnd {
 				scanp += i
 				break Input
@@ -157,7 +157,7 @@ func (dec *Decoder) refill() error {
 
 func nonSpace(b []byte) bool {
 	for _, c := range b {
-		if !isSpace(rune(c)) {
+		if !isSpace(c) {
 			return true
 		}
 	}
@@ -440,7 +440,7 @@ func (dec *Decoder) tokenError(c byte) (Token, error) {
 	case tokenObjectComma:
 		context = " after object key:value pair"
 	}
-	return nil, &SyntaxError{"invalid character " + quoteChar(int(c)) + " " + context, 0}
+	return nil, &SyntaxError{"invalid character " + quoteChar(c) + " " + context, 0}
 }
 
 // More reports whether there is another element in the
@@ -455,7 +455,7 @@ func (dec *Decoder) peek() (byte, error) {
 	for {
 		for i := dec.scanp; i < len(dec.buf); i++ {
 			c := dec.buf[i]
-			if isSpace(rune(c)) {
+			if isSpace(c) {
 				continue
 			}
 			dec.scanp = i