[VOL-4648] Add connection to sysrepo and subscribe to NETCONF 'get' requests with dummy callback
Change-Id: I9124d9b9430ee1358885bdb5c65dedfb3c5d3978
diff --git a/vendor/google.golang.org/protobuf/internal/encoding/json/decode.go b/vendor/google.golang.org/protobuf/internal/encoding/json/decode.go
new file mode 100644
index 0000000..b13fd29
--- /dev/null
+++ b/vendor/google.golang.org/protobuf/internal/encoding/json/decode.go
@@ -0,0 +1,340 @@
+// Copyright 2018 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package json
+
+import (
+ "bytes"
+ "fmt"
+ "io"
+ "regexp"
+ "unicode/utf8"
+
+ "google.golang.org/protobuf/internal/errors"
+)
+
+// call specifies which Decoder method was invoked.
+type call uint8
+
+const (
+ readCall call = iota
+ peekCall
+)
+
+const unexpectedFmt = "unexpected token %s"
+
+// ErrUnexpectedEOF means that EOF was encountered in the middle of the input.
+var ErrUnexpectedEOF = errors.New("%v", io.ErrUnexpectedEOF)
+
+// Decoder is a token-based JSON decoder.
+type Decoder struct {
+ // lastCall is last method called, either readCall or peekCall.
+ // Initial value is readCall.
+ lastCall call
+
+ // lastToken contains the last read token.
+ lastToken Token
+
+ // lastErr contains the last read error.
+ lastErr error
+
+ // openStack is a stack containing ObjectOpen and ArrayOpen values. The
+ // top of stack represents the object or the array the current value is
+ // directly located in.
+ openStack []Kind
+
+ // orig is used in reporting line and column.
+ orig []byte
+ // in contains the unconsumed input.
+ in []byte
+}
+
+// NewDecoder returns a Decoder to read the given []byte.
+func NewDecoder(b []byte) *Decoder {
+ return &Decoder{orig: b, in: b}
+}
+
+// Peek looks ahead and returns the next token kind without advancing a read.
+func (d *Decoder) Peek() (Token, error) {
+ defer func() { d.lastCall = peekCall }()
+ if d.lastCall == readCall {
+ d.lastToken, d.lastErr = d.Read()
+ }
+ return d.lastToken, d.lastErr
+}
+
+// Read returns the next JSON token.
+// It will return an error if there is no valid token.
+func (d *Decoder) Read() (Token, error) {
+ const scalar = Null | Bool | Number | String
+
+ defer func() { d.lastCall = readCall }()
+ if d.lastCall == peekCall {
+ return d.lastToken, d.lastErr
+ }
+
+ tok, err := d.parseNext()
+ if err != nil {
+ return Token{}, err
+ }
+
+ switch tok.kind {
+ case EOF:
+ if len(d.openStack) != 0 ||
+ d.lastToken.kind&scalar|ObjectClose|ArrayClose == 0 {
+ return Token{}, ErrUnexpectedEOF
+ }
+
+ case Null:
+ if !d.isValueNext() {
+ return Token{}, d.newSyntaxError(tok.pos, unexpectedFmt, tok.RawString())
+ }
+
+ case Bool, Number:
+ if !d.isValueNext() {
+ return Token{}, d.newSyntaxError(tok.pos, unexpectedFmt, tok.RawString())
+ }
+
+ case String:
+ if d.isValueNext() {
+ break
+ }
+ // This string token should only be for a field name.
+ if d.lastToken.kind&(ObjectOpen|comma) == 0 {
+ return Token{}, d.newSyntaxError(tok.pos, unexpectedFmt, tok.RawString())
+ }
+ if len(d.in) == 0 {
+ return Token{}, ErrUnexpectedEOF
+ }
+ if c := d.in[0]; c != ':' {
+ return Token{}, d.newSyntaxError(d.currPos(), `unexpected character %s, missing ":" after field name`, string(c))
+ }
+ tok.kind = Name
+ d.consume(1)
+
+ case ObjectOpen, ArrayOpen:
+ if !d.isValueNext() {
+ return Token{}, d.newSyntaxError(tok.pos, unexpectedFmt, tok.RawString())
+ }
+ d.openStack = append(d.openStack, tok.kind)
+
+ case ObjectClose:
+ if len(d.openStack) == 0 ||
+ d.lastToken.kind == comma ||
+ d.openStack[len(d.openStack)-1] != ObjectOpen {
+ return Token{}, d.newSyntaxError(tok.pos, unexpectedFmt, tok.RawString())
+ }
+ d.openStack = d.openStack[:len(d.openStack)-1]
+
+ case ArrayClose:
+ if len(d.openStack) == 0 ||
+ d.lastToken.kind == comma ||
+ d.openStack[len(d.openStack)-1] != ArrayOpen {
+ return Token{}, d.newSyntaxError(tok.pos, unexpectedFmt, tok.RawString())
+ }
+ d.openStack = d.openStack[:len(d.openStack)-1]
+
+ case comma:
+ if len(d.openStack) == 0 ||
+ d.lastToken.kind&(scalar|ObjectClose|ArrayClose) == 0 {
+ return Token{}, d.newSyntaxError(tok.pos, unexpectedFmt, tok.RawString())
+ }
+ }
+
+ // Update d.lastToken only after validating token to be in the right sequence.
+ d.lastToken = tok
+
+ if d.lastToken.kind == comma {
+ return d.Read()
+ }
+ return tok, nil
+}
+
+// Any sequence that looks like a non-delimiter (for error reporting).
+var errRegexp = regexp.MustCompile(`^([-+._a-zA-Z0-9]{1,32}|.)`)
+
+// parseNext parses for the next JSON token. It returns a Token object for
+// different types, except for Name. It does not handle whether the next token
+// is in a valid sequence or not.
+func (d *Decoder) parseNext() (Token, error) {
+ // Trim leading spaces.
+ d.consume(0)
+
+ in := d.in
+ if len(in) == 0 {
+ return d.consumeToken(EOF, 0), nil
+ }
+
+ switch in[0] {
+ case 'n':
+ if n := matchWithDelim("null", in); n != 0 {
+ return d.consumeToken(Null, n), nil
+ }
+
+ case 't':
+ if n := matchWithDelim("true", in); n != 0 {
+ return d.consumeBoolToken(true, n), nil
+ }
+
+ case 'f':
+ if n := matchWithDelim("false", in); n != 0 {
+ return d.consumeBoolToken(false, n), nil
+ }
+
+ case '-', '0', '1', '2', '3', '4', '5', '6', '7', '8', '9':
+ if n, ok := parseNumber(in); ok {
+ return d.consumeToken(Number, n), nil
+ }
+
+ case '"':
+ s, n, err := d.parseString(in)
+ if err != nil {
+ return Token{}, err
+ }
+ return d.consumeStringToken(s, n), nil
+
+ case '{':
+ return d.consumeToken(ObjectOpen, 1), nil
+
+ case '}':
+ return d.consumeToken(ObjectClose, 1), nil
+
+ case '[':
+ return d.consumeToken(ArrayOpen, 1), nil
+
+ case ']':
+ return d.consumeToken(ArrayClose, 1), nil
+
+ case ',':
+ return d.consumeToken(comma, 1), nil
+ }
+ return Token{}, d.newSyntaxError(d.currPos(), "invalid value %s", errRegexp.Find(in))
+}
+
+// newSyntaxError returns an error with line and column information useful for
+// syntax errors.
+func (d *Decoder) newSyntaxError(pos int, f string, x ...interface{}) error {
+ e := errors.New(f, x...)
+ line, column := d.Position(pos)
+ return errors.New("syntax error (line %d:%d): %v", line, column, e)
+}
+
+// Position returns line and column number of given index of the original input.
+// It will panic if index is out of range.
+func (d *Decoder) Position(idx int) (line int, column int) {
+ b := d.orig[:idx]
+ line = bytes.Count(b, []byte("\n")) + 1
+ if i := bytes.LastIndexByte(b, '\n'); i >= 0 {
+ b = b[i+1:]
+ }
+ column = utf8.RuneCount(b) + 1 // ignore multi-rune characters
+ return line, column
+}
+
+// currPos returns the current index position of d.in from d.orig.
+func (d *Decoder) currPos() int {
+ return len(d.orig) - len(d.in)
+}
+
+// matchWithDelim matches s with the input b and verifies that the match
+// terminates with a delimiter of some form (e.g., r"[^-+_.a-zA-Z0-9]").
+// As a special case, EOF is considered a delimiter. It returns the length of s
+// if there is a match, else 0.
+func matchWithDelim(s string, b []byte) int {
+ if !bytes.HasPrefix(b, []byte(s)) {
+ return 0
+ }
+
+ n := len(s)
+ if n < len(b) && isNotDelim(b[n]) {
+ return 0
+ }
+ return n
+}
+
+// isNotDelim returns true if given byte is a not delimiter character.
+func isNotDelim(c byte) bool {
+ return (c == '-' || c == '+' || c == '.' || c == '_' ||
+ ('a' <= c && c <= 'z') ||
+ ('A' <= c && c <= 'Z') ||
+ ('0' <= c && c <= '9'))
+}
+
+// consume consumes n bytes of input and any subsequent whitespace.
+func (d *Decoder) consume(n int) {
+ d.in = d.in[n:]
+ for len(d.in) > 0 {
+ switch d.in[0] {
+ case ' ', '\n', '\r', '\t':
+ d.in = d.in[1:]
+ default:
+ return
+ }
+ }
+}
+
+// isValueNext returns true if next type should be a JSON value: Null,
+// Number, String or Bool.
+func (d *Decoder) isValueNext() bool {
+ if len(d.openStack) == 0 {
+ return d.lastToken.kind == 0
+ }
+
+ start := d.openStack[len(d.openStack)-1]
+ switch start {
+ case ObjectOpen:
+ return d.lastToken.kind&Name != 0
+ case ArrayOpen:
+ return d.lastToken.kind&(ArrayOpen|comma) != 0
+ }
+ panic(fmt.Sprintf(
+ "unreachable logic in Decoder.isValueNext, lastToken.kind: %v, openStack: %v",
+ d.lastToken.kind, start))
+}
+
+// consumeToken constructs a Token for given Kind with raw value derived from
+// current d.in and given size, and consumes the given size-lenght of it.
+func (d *Decoder) consumeToken(kind Kind, size int) Token {
+ tok := Token{
+ kind: kind,
+ raw: d.in[:size],
+ pos: len(d.orig) - len(d.in),
+ }
+ d.consume(size)
+ return tok
+}
+
+// consumeBoolToken constructs a Token for a Bool kind with raw value derived from
+// current d.in and given size.
+func (d *Decoder) consumeBoolToken(b bool, size int) Token {
+ tok := Token{
+ kind: Bool,
+ raw: d.in[:size],
+ pos: len(d.orig) - len(d.in),
+ boo: b,
+ }
+ d.consume(size)
+ return tok
+}
+
+// consumeStringToken constructs a Token for a String kind with raw value derived
+// from current d.in and given size.
+func (d *Decoder) consumeStringToken(s string, size int) Token {
+ tok := Token{
+ kind: String,
+ raw: d.in[:size],
+ pos: len(d.orig) - len(d.in),
+ str: s,
+ }
+ d.consume(size)
+ return tok
+}
+
+// Clone returns a copy of the Decoder for use in reading ahead the next JSON
+// object, array or other values without affecting current Decoder.
+func (d *Decoder) Clone() *Decoder {
+ ret := *d
+ ret.openStack = append([]Kind(nil), ret.openStack...)
+ return &ret
+}
diff --git a/vendor/google.golang.org/protobuf/internal/encoding/json/decode_number.go b/vendor/google.golang.org/protobuf/internal/encoding/json/decode_number.go
new file mode 100644
index 0000000..2999d71
--- /dev/null
+++ b/vendor/google.golang.org/protobuf/internal/encoding/json/decode_number.go
@@ -0,0 +1,254 @@
+// Copyright 2018 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package json
+
+import (
+ "bytes"
+ "strconv"
+)
+
+// parseNumber reads the given []byte for a valid JSON number. If it is valid,
+// it returns the number of bytes. Parsing logic follows the definition in
+// https://tools.ietf.org/html/rfc7159#section-6, and is based off
+// encoding/json.isValidNumber function.
+func parseNumber(input []byte) (int, bool) {
+ var n int
+
+ s := input
+ if len(s) == 0 {
+ return 0, false
+ }
+
+ // Optional -
+ if s[0] == '-' {
+ s = s[1:]
+ n++
+ if len(s) == 0 {
+ return 0, false
+ }
+ }
+
+ // Digits
+ switch {
+ case s[0] == '0':
+ s = s[1:]
+ n++
+
+ case '1' <= s[0] && s[0] <= '9':
+ s = s[1:]
+ n++
+ for len(s) > 0 && '0' <= s[0] && s[0] <= '9' {
+ s = s[1:]
+ n++
+ }
+
+ default:
+ return 0, false
+ }
+
+ // . followed by 1 or more digits.
+ if len(s) >= 2 && s[0] == '.' && '0' <= s[1] && s[1] <= '9' {
+ s = s[2:]
+ n += 2
+ for len(s) > 0 && '0' <= s[0] && s[0] <= '9' {
+ s = s[1:]
+ n++
+ }
+ }
+
+ // 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:]
+ n++
+ if s[0] == '+' || s[0] == '-' {
+ s = s[1:]
+ n++
+ if len(s) == 0 {
+ return 0, false
+ }
+ }
+ for len(s) > 0 && '0' <= s[0] && s[0] <= '9' {
+ s = s[1:]
+ n++
+ }
+ }
+
+ // Check that next byte is a delimiter or it is at the end.
+ if n < len(input) && isNotDelim(input[n]) {
+ return 0, false
+ }
+
+ return n, true
+}
+
+// numberParts is the result of parsing out a valid JSON number. It contains
+// the parts of a number. The parts are used for integer conversion.
+type numberParts struct {
+ neg bool
+ intp []byte
+ frac []byte
+ exp []byte
+}
+
+// parseNumber constructs numberParts from given []byte. The logic here is
+// similar to consumeNumber above with the difference of having to construct
+// numberParts. The slice fields in numberParts are subslices of the input.
+func parseNumberParts(input []byte) (numberParts, bool) {
+ var neg bool
+ var intp []byte
+ var frac []byte
+ var exp []byte
+
+ s := input
+ if len(s) == 0 {
+ return numberParts{}, false
+ }
+
+ // Optional -
+ if s[0] == '-' {
+ neg = true
+ s = s[1:]
+ if len(s) == 0 {
+ return numberParts{}, false
+ }
+ }
+
+ // Digits
+ switch {
+ case s[0] == '0':
+ // Skip first 0 and no need to store.
+ s = s[1:]
+
+ case '1' <= s[0] && s[0] <= '9':
+ intp = s
+ n := 1
+ s = s[1:]
+ for len(s) > 0 && '0' <= s[0] && s[0] <= '9' {
+ s = s[1:]
+ n++
+ }
+ intp = intp[:n]
+
+ default:
+ return numberParts{}, false
+ }
+
+ // . followed by 1 or more digits.
+ if len(s) >= 2 && s[0] == '.' && '0' <= s[1] && s[1] <= '9' {
+ frac = s[1:]
+ n := 1
+ s = s[2:]
+ for len(s) > 0 && '0' <= s[0] && s[0] <= '9' {
+ s = s[1:]
+ n++
+ }
+ frac = frac[:n]
+ }
+
+ // 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:]
+ exp = s
+ n := 0
+ if s[0] == '+' || s[0] == '-' {
+ s = s[1:]
+ n++
+ if len(s) == 0 {
+ return numberParts{}, false
+ }
+ }
+ for len(s) > 0 && '0' <= s[0] && s[0] <= '9' {
+ s = s[1:]
+ n++
+ }
+ exp = exp[:n]
+ }
+
+ return numberParts{
+ neg: neg,
+ intp: intp,
+ frac: bytes.TrimRight(frac, "0"), // Remove unnecessary 0s to the right.
+ exp: exp,
+ }, true
+}
+
+// normalizeToIntString returns an integer string in normal form without the
+// E-notation for given numberParts. It will return false if it is not an
+// integer or if the exponent exceeds than max/min int value.
+func normalizeToIntString(n numberParts) (string, bool) {
+ intpSize := len(n.intp)
+ fracSize := len(n.frac)
+
+ if intpSize == 0 && fracSize == 0 {
+ return "0", true
+ }
+
+ var exp int
+ if len(n.exp) > 0 {
+ i, err := strconv.ParseInt(string(n.exp), 10, 32)
+ if err != nil {
+ return "", false
+ }
+ exp = int(i)
+ }
+
+ var num []byte
+ if exp >= 0 {
+ // For positive E, shift fraction digits into integer part and also pad
+ // with zeroes as needed.
+
+ // If there are more digits in fraction than the E value, then the
+ // number is not an integer.
+ if fracSize > exp {
+ return "", false
+ }
+
+ // Make sure resulting digits are within max value limit to avoid
+ // unnecessarily constructing a large byte slice that may simply fail
+ // later on.
+ const maxDigits = 20 // Max uint64 value has 20 decimal digits.
+ if intpSize+exp > maxDigits {
+ return "", false
+ }
+
+ // Set cap to make a copy of integer part when appended.
+ num = n.intp[:len(n.intp):len(n.intp)]
+ num = append(num, n.frac...)
+ for i := 0; i < exp-fracSize; i++ {
+ num = append(num, '0')
+ }
+ } else {
+ // For negative E, shift digits in integer part out.
+
+ // If there are fractions, then the number is not an integer.
+ if fracSize > 0 {
+ return "", false
+ }
+
+ // index is where the decimal point will be after adjusting for negative
+ // exponent.
+ index := intpSize + exp
+ if index < 0 {
+ return "", false
+ }
+
+ num = n.intp
+ // If any of the digits being shifted to the right of the decimal point
+ // is non-zero, then the number is not an integer.
+ for i := index; i < intpSize; i++ {
+ if num[i] != '0' {
+ return "", false
+ }
+ }
+ num = num[:index]
+ }
+
+ if n.neg {
+ return "-" + string(num), true
+ }
+ return string(num), true
+}
diff --git a/vendor/google.golang.org/protobuf/internal/encoding/json/decode_string.go b/vendor/google.golang.org/protobuf/internal/encoding/json/decode_string.go
new file mode 100644
index 0000000..f7fea7d
--- /dev/null
+++ b/vendor/google.golang.org/protobuf/internal/encoding/json/decode_string.go
@@ -0,0 +1,91 @@
+// Copyright 2018 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package json
+
+import (
+ "strconv"
+ "unicode"
+ "unicode/utf16"
+ "unicode/utf8"
+
+ "google.golang.org/protobuf/internal/strs"
+)
+
+func (d *Decoder) parseString(in []byte) (string, int, error) {
+ in0 := in
+ if len(in) == 0 {
+ return "", 0, ErrUnexpectedEOF
+ }
+ if in[0] != '"' {
+ return "", 0, d.newSyntaxError(d.currPos(), "invalid character %q at start of string", in[0])
+ }
+ in = in[1:]
+ i := indexNeedEscapeInBytes(in)
+ in, out := in[i:], in[:i:i] // set cap to prevent mutations
+ for len(in) > 0 {
+ switch r, n := utf8.DecodeRune(in); {
+ case r == utf8.RuneError && n == 1:
+ return "", 0, d.newSyntaxError(d.currPos(), "invalid UTF-8 in string")
+ case r < ' ':
+ return "", 0, d.newSyntaxError(d.currPos(), "invalid character %q in string", r)
+ case r == '"':
+ in = in[1:]
+ n := len(in0) - len(in)
+ return string(out), n, nil
+ case r == '\\':
+ if len(in) < 2 {
+ return "", 0, ErrUnexpectedEOF
+ }
+ switch r := in[1]; r {
+ case '"', '\\', '/':
+ in, out = in[2:], append(out, r)
+ case 'b':
+ in, out = in[2:], append(out, '\b')
+ case 'f':
+ in, out = in[2:], append(out, '\f')
+ case 'n':
+ in, out = in[2:], append(out, '\n')
+ case 'r':
+ in, out = in[2:], append(out, '\r')
+ case 't':
+ in, out = in[2:], append(out, '\t')
+ case 'u':
+ if len(in) < 6 {
+ return "", 0, ErrUnexpectedEOF
+ }
+ v, err := strconv.ParseUint(string(in[2:6]), 16, 16)
+ if err != nil {
+ return "", 0, d.newSyntaxError(d.currPos(), "invalid escape code %q in string", in[:6])
+ }
+ in = in[6:]
+
+ r := rune(v)
+ if utf16.IsSurrogate(r) {
+ if len(in) < 6 {
+ return "", 0, ErrUnexpectedEOF
+ }
+ v, err := strconv.ParseUint(string(in[2:6]), 16, 16)
+ r = utf16.DecodeRune(r, rune(v))
+ if in[0] != '\\' || in[1] != 'u' ||
+ r == unicode.ReplacementChar || err != nil {
+ return "", 0, d.newSyntaxError(d.currPos(), "invalid escape code %q in string", in[:6])
+ }
+ in = in[6:]
+ }
+ out = append(out, string(r)...)
+ default:
+ return "", 0, d.newSyntaxError(d.currPos(), "invalid escape code %q in string", in[:2])
+ }
+ default:
+ i := indexNeedEscapeInBytes(in[n:])
+ in, out = in[n+i:], append(out, in[:n+i]...)
+ }
+ }
+ return "", 0, ErrUnexpectedEOF
+}
+
+// indexNeedEscapeInBytes returns the index of the character that needs
+// escaping. If no characters need escaping, this returns the input length.
+func indexNeedEscapeInBytes(b []byte) int { return indexNeedEscapeInString(strs.UnsafeString(b)) }
diff --git a/vendor/google.golang.org/protobuf/internal/encoding/json/decode_token.go b/vendor/google.golang.org/protobuf/internal/encoding/json/decode_token.go
new file mode 100644
index 0000000..50578d6
--- /dev/null
+++ b/vendor/google.golang.org/protobuf/internal/encoding/json/decode_token.go
@@ -0,0 +1,192 @@
+// Copyright 2019 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package json
+
+import (
+ "bytes"
+ "fmt"
+ "strconv"
+)
+
+// Kind represents a token kind expressible in the JSON format.
+type Kind uint16
+
+const (
+ Invalid Kind = (1 << iota) / 2
+ EOF
+ Null
+ Bool
+ Number
+ String
+ Name
+ ObjectOpen
+ ObjectClose
+ ArrayOpen
+ ArrayClose
+
+ // comma is only for parsing in between tokens and
+ // does not need to be exported.
+ comma
+)
+
+func (k Kind) String() string {
+ switch k {
+ case EOF:
+ return "eof"
+ case Null:
+ return "null"
+ case Bool:
+ return "bool"
+ case Number:
+ return "number"
+ case String:
+ return "string"
+ case ObjectOpen:
+ return "{"
+ case ObjectClose:
+ return "}"
+ case Name:
+ return "name"
+ case ArrayOpen:
+ return "["
+ case ArrayClose:
+ return "]"
+ case comma:
+ return ","
+ }
+ return "<invalid>"
+}
+
+// Token provides a parsed token kind and value.
+//
+// Values are provided by the difference accessor methods. The accessor methods
+// Name, Bool, and ParsedString will panic if called on the wrong kind. There
+// are different accessor methods for the Number kind for converting to the
+// appropriate Go numeric type and those methods have the ok return value.
+type Token struct {
+ // Token kind.
+ kind Kind
+ // pos provides the position of the token in the original input.
+ pos int
+ // raw bytes of the serialized token.
+ // This is a subslice into the original input.
+ raw []byte
+ // boo is parsed boolean value.
+ boo bool
+ // str is parsed string value.
+ str string
+}
+
+// Kind returns the token kind.
+func (t Token) Kind() Kind {
+ return t.kind
+}
+
+// RawString returns the read value in string.
+func (t Token) RawString() string {
+ return string(t.raw)
+}
+
+// Pos returns the token position from the input.
+func (t Token) Pos() int {
+ return t.pos
+}
+
+// Name returns the object name if token is Name, else it panics.
+func (t Token) Name() string {
+ if t.kind == Name {
+ return t.str
+ }
+ panic(fmt.Sprintf("Token is not a Name: %v", t.RawString()))
+}
+
+// Bool returns the bool value if token kind is Bool, else it panics.
+func (t Token) Bool() bool {
+ if t.kind == Bool {
+ return t.boo
+ }
+ panic(fmt.Sprintf("Token is not a Bool: %v", t.RawString()))
+}
+
+// ParsedString returns the string value for a JSON string token or the read
+// value in string if token is not a string.
+func (t Token) ParsedString() string {
+ if t.kind == String {
+ return t.str
+ }
+ panic(fmt.Sprintf("Token is not a String: %v", t.RawString()))
+}
+
+// Float returns the floating-point number if token kind is Number.
+//
+// The floating-point precision is specified by the bitSize parameter: 32 for
+// float32 or 64 for float64. If bitSize=32, the result still has type float64,
+// but it will be convertible to float32 without changing its value. It will
+// return false if the number exceeds the floating point limits for given
+// bitSize.
+func (t Token) Float(bitSize int) (float64, bool) {
+ if t.kind != Number {
+ return 0, false
+ }
+ f, err := strconv.ParseFloat(t.RawString(), bitSize)
+ if err != nil {
+ return 0, false
+ }
+ return f, true
+}
+
+// Int returns the signed integer number if token is Number.
+//
+// The given bitSize specifies the integer type that the result must fit into.
+// It returns false if the number is not an integer value or if the result
+// exceeds the limits for given bitSize.
+func (t Token) Int(bitSize int) (int64, bool) {
+ s, ok := t.getIntStr()
+ if !ok {
+ return 0, false
+ }
+ n, err := strconv.ParseInt(s, 10, bitSize)
+ if err != nil {
+ return 0, false
+ }
+ return n, true
+}
+
+// Uint returns the signed integer number if token is Number.
+//
+// The given bitSize specifies the unsigned integer type that the result must
+// fit into. It returns false if the number is not an unsigned integer value
+// or if the result exceeds the limits for given bitSize.
+func (t Token) Uint(bitSize int) (uint64, bool) {
+ s, ok := t.getIntStr()
+ if !ok {
+ return 0, false
+ }
+ n, err := strconv.ParseUint(s, 10, bitSize)
+ if err != nil {
+ return 0, false
+ }
+ return n, true
+}
+
+func (t Token) getIntStr() (string, bool) {
+ if t.kind != Number {
+ return "", false
+ }
+ parts, ok := parseNumberParts(t.raw)
+ if !ok {
+ return "", false
+ }
+ return normalizeToIntString(parts)
+}
+
+// TokenEquals returns true if given Tokens are equal, else false.
+func TokenEquals(x, y Token) bool {
+ return x.kind == y.kind &&
+ x.pos == y.pos &&
+ bytes.Equal(x.raw, y.raw) &&
+ x.boo == y.boo &&
+ x.str == y.str
+}
diff --git a/vendor/google.golang.org/protobuf/internal/encoding/json/encode.go b/vendor/google.golang.org/protobuf/internal/encoding/json/encode.go
new file mode 100644
index 0000000..fbdf348
--- /dev/null
+++ b/vendor/google.golang.org/protobuf/internal/encoding/json/encode.go
@@ -0,0 +1,276 @@
+// Copyright 2018 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package json
+
+import (
+ "math"
+ "math/bits"
+ "strconv"
+ "strings"
+ "unicode/utf8"
+
+ "google.golang.org/protobuf/internal/detrand"
+ "google.golang.org/protobuf/internal/errors"
+)
+
+// kind represents an encoding type.
+type kind uint8
+
+const (
+ _ kind = (1 << iota) / 2
+ name
+ scalar
+ objectOpen
+ objectClose
+ arrayOpen
+ arrayClose
+)
+
+// Encoder provides methods to write out JSON constructs and values. The user is
+// responsible for producing valid sequences of JSON constructs and values.
+type Encoder struct {
+ indent string
+ lastKind kind
+ indents []byte
+ out []byte
+}
+
+// NewEncoder returns an Encoder.
+//
+// If indent is a non-empty string, it causes every entry for an Array or Object
+// to be preceded by the indent and trailed by a newline.
+func NewEncoder(indent string) (*Encoder, error) {
+ e := &Encoder{}
+ if len(indent) > 0 {
+ if strings.Trim(indent, " \t") != "" {
+ return nil, errors.New("indent may only be composed of space or tab characters")
+ }
+ e.indent = indent
+ }
+ return e, nil
+}
+
+// Bytes returns the content of the written bytes.
+func (e *Encoder) Bytes() []byte {
+ return e.out
+}
+
+// WriteNull writes out the null value.
+func (e *Encoder) WriteNull() {
+ e.prepareNext(scalar)
+ e.out = append(e.out, "null"...)
+}
+
+// WriteBool writes out the given boolean value.
+func (e *Encoder) WriteBool(b bool) {
+ e.prepareNext(scalar)
+ if b {
+ e.out = append(e.out, "true"...)
+ } else {
+ e.out = append(e.out, "false"...)
+ }
+}
+
+// WriteString writes out the given string in JSON string value. Returns error
+// if input string contains invalid UTF-8.
+func (e *Encoder) WriteString(s string) error {
+ e.prepareNext(scalar)
+ var err error
+ if e.out, err = appendString(e.out, s); err != nil {
+ return err
+ }
+ return nil
+}
+
+// Sentinel error used for indicating invalid UTF-8.
+var errInvalidUTF8 = errors.New("invalid UTF-8")
+
+func appendString(out []byte, in string) ([]byte, error) {
+ out = append(out, '"')
+ i := indexNeedEscapeInString(in)
+ in, out = in[i:], append(out, in[:i]...)
+ for len(in) > 0 {
+ switch r, n := utf8.DecodeRuneInString(in); {
+ case r == utf8.RuneError && n == 1:
+ return out, errInvalidUTF8
+ case r < ' ' || r == '"' || r == '\\':
+ out = append(out, '\\')
+ switch r {
+ case '"', '\\':
+ out = append(out, byte(r))
+ case '\b':
+ out = append(out, 'b')
+ case '\f':
+ out = append(out, 'f')
+ case '\n':
+ out = append(out, 'n')
+ case '\r':
+ out = append(out, 'r')
+ case '\t':
+ out = append(out, 't')
+ default:
+ out = append(out, 'u')
+ out = append(out, "0000"[1+(bits.Len32(uint32(r))-1)/4:]...)
+ out = strconv.AppendUint(out, uint64(r), 16)
+ }
+ in = in[n:]
+ default:
+ i := indexNeedEscapeInString(in[n:])
+ in, out = in[n+i:], append(out, in[:n+i]...)
+ }
+ }
+ out = append(out, '"')
+ return out, nil
+}
+
+// indexNeedEscapeInString returns the index of the character that needs
+// escaping. If no characters need escaping, this returns the input length.
+func indexNeedEscapeInString(s string) int {
+ for i, r := range s {
+ if r < ' ' || r == '\\' || r == '"' || r == utf8.RuneError {
+ return i
+ }
+ }
+ return len(s)
+}
+
+// WriteFloat writes out the given float and bitSize in JSON number value.
+func (e *Encoder) WriteFloat(n float64, bitSize int) {
+ e.prepareNext(scalar)
+ e.out = appendFloat(e.out, n, bitSize)
+}
+
+// appendFloat formats given float in bitSize, and appends to the given []byte.
+func appendFloat(out []byte, n float64, bitSize int) []byte {
+ switch {
+ case math.IsNaN(n):
+ return append(out, `"NaN"`...)
+ case math.IsInf(n, +1):
+ return append(out, `"Infinity"`...)
+ case math.IsInf(n, -1):
+ return append(out, `"-Infinity"`...)
+ }
+
+ // JSON number formatting logic based on encoding/json.
+ // See floatEncoder.encode for reference.
+ fmt := byte('f')
+ if abs := math.Abs(n); abs != 0 {
+ if bitSize == 64 && (abs < 1e-6 || abs >= 1e21) ||
+ bitSize == 32 && (float32(abs) < 1e-6 || float32(abs) >= 1e21) {
+ fmt = 'e'
+ }
+ }
+ out = strconv.AppendFloat(out, n, fmt, -1, bitSize)
+ if fmt == 'e' {
+ n := len(out)
+ if n >= 4 && out[n-4] == 'e' && out[n-3] == '-' && out[n-2] == '0' {
+ out[n-2] = out[n-1]
+ out = out[:n-1]
+ }
+ }
+ return out
+}
+
+// WriteInt writes out the given signed integer in JSON number value.
+func (e *Encoder) WriteInt(n int64) {
+ e.prepareNext(scalar)
+ e.out = append(e.out, strconv.FormatInt(n, 10)...)
+}
+
+// WriteUint writes out the given unsigned integer in JSON number value.
+func (e *Encoder) WriteUint(n uint64) {
+ e.prepareNext(scalar)
+ e.out = append(e.out, strconv.FormatUint(n, 10)...)
+}
+
+// StartObject writes out the '{' symbol.
+func (e *Encoder) StartObject() {
+ e.prepareNext(objectOpen)
+ e.out = append(e.out, '{')
+}
+
+// EndObject writes out the '}' symbol.
+func (e *Encoder) EndObject() {
+ e.prepareNext(objectClose)
+ e.out = append(e.out, '}')
+}
+
+// WriteName writes out the given string in JSON string value and the name
+// separator ':'. Returns error if input string contains invalid UTF-8, which
+// should not be likely as protobuf field names should be valid.
+func (e *Encoder) WriteName(s string) error {
+ e.prepareNext(name)
+ var err error
+ // Append to output regardless of error.
+ e.out, err = appendString(e.out, s)
+ e.out = append(e.out, ':')
+ return err
+}
+
+// StartArray writes out the '[' symbol.
+func (e *Encoder) StartArray() {
+ e.prepareNext(arrayOpen)
+ e.out = append(e.out, '[')
+}
+
+// EndArray writes out the ']' symbol.
+func (e *Encoder) EndArray() {
+ e.prepareNext(arrayClose)
+ e.out = append(e.out, ']')
+}
+
+// prepareNext adds possible comma and indentation for the next value based
+// on last type and indent option. It also updates lastKind to next.
+func (e *Encoder) prepareNext(next kind) {
+ defer func() {
+ // Set lastKind to next.
+ e.lastKind = next
+ }()
+
+ if len(e.indent) == 0 {
+ // Need to add comma on the following condition.
+ if e.lastKind&(scalar|objectClose|arrayClose) != 0 &&
+ next&(name|scalar|objectOpen|arrayOpen) != 0 {
+ e.out = append(e.out, ',')
+ // For single-line output, add a random extra space after each
+ // comma to make output unstable.
+ if detrand.Bool() {
+ e.out = append(e.out, ' ')
+ }
+ }
+ return
+ }
+
+ switch {
+ case e.lastKind&(objectOpen|arrayOpen) != 0:
+ // If next type is NOT closing, add indent and newline.
+ if next&(objectClose|arrayClose) == 0 {
+ e.indents = append(e.indents, e.indent...)
+ e.out = append(e.out, '\n')
+ e.out = append(e.out, e.indents...)
+ }
+
+ case e.lastKind&(scalar|objectClose|arrayClose) != 0:
+ switch {
+ // If next type is either a value or name, add comma and newline.
+ case next&(name|scalar|objectOpen|arrayOpen) != 0:
+ e.out = append(e.out, ',', '\n')
+
+ // If next type is a closing object or array, adjust indentation.
+ case next&(objectClose|arrayClose) != 0:
+ e.indents = e.indents[:len(e.indents)-len(e.indent)]
+ e.out = append(e.out, '\n')
+ }
+ e.out = append(e.out, e.indents...)
+
+ case e.lastKind&name != 0:
+ e.out = append(e.out, ' ')
+ // For multi-line output, add a random extra space after key: to make
+ // output unstable.
+ if detrand.Bool() {
+ e.out = append(e.out, ' ')
+ }
+ }
+}