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Help needed: vendor files for Prometheus support
These are the vendor files needed for Prometheus support. I have not been able to figure out how to do this properly with gopkg.
This commit is contained in:
Konrad Wojas
Zlatko Čalušić
parent
ca0e09261f
commit
4cd82b6802
423 changed files with 90775 additions and 0 deletions
895
vendor/github.com/golang/protobuf/proto/text_parser.go
generated
vendored
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895
vendor/github.com/golang/protobuf/proto/text_parser.go
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vendored
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@ -0,0 +1,895 @@
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// Go support for Protocol Buffers - Google's data interchange format
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//
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// Copyright 2010 The Go Authors. All rights reserved.
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// https://github.com/golang/protobuf
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//
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// Redistribution and use in source and binary forms, with or without
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// modification, are permitted provided that the following conditions are
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// met:
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//
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// * Redistributions of source code must retain the above copyright
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// notice, this list of conditions and the following disclaimer.
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// * Redistributions in binary form must reproduce the above
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// copyright notice, this list of conditions and the following disclaimer
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// in the documentation and/or other materials provided with the
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// distribution.
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// * Neither the name of Google Inc. nor the names of its
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// contributors may be used to endorse or promote products derived from
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// this software without specific prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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package proto
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// Functions for parsing the Text protocol buffer format.
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// TODO: message sets.
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import (
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"encoding"
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"errors"
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"fmt"
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"reflect"
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"strconv"
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"strings"
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"unicode/utf8"
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)
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// Error string emitted when deserializing Any and fields are already set
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const anyRepeatedlyUnpacked = "Any message unpacked multiple times, or %q already set"
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type ParseError struct {
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Message string
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Line int // 1-based line number
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Offset int // 0-based byte offset from start of input
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}
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func (p *ParseError) Error() string {
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if p.Line == 1 {
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// show offset only for first line
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return fmt.Sprintf("line 1.%d: %v", p.Offset, p.Message)
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}
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return fmt.Sprintf("line %d: %v", p.Line, p.Message)
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}
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type token struct {
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value string
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err *ParseError
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line int // line number
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offset int // byte number from start of input, not start of line
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unquoted string // the unquoted version of value, if it was a quoted string
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}
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func (t *token) String() string {
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if t.err == nil {
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return fmt.Sprintf("%q (line=%d, offset=%d)", t.value, t.line, t.offset)
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}
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return fmt.Sprintf("parse error: %v", t.err)
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}
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type textParser struct {
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s string // remaining input
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done bool // whether the parsing is finished (success or error)
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backed bool // whether back() was called
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offset, line int
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cur token
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}
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func newTextParser(s string) *textParser {
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p := new(textParser)
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p.s = s
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p.line = 1
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p.cur.line = 1
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return p
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}
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func (p *textParser) errorf(format string, a ...interface{}) *ParseError {
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pe := &ParseError{fmt.Sprintf(format, a...), p.cur.line, p.cur.offset}
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p.cur.err = pe
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p.done = true
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return pe
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}
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// Numbers and identifiers are matched by [-+._A-Za-z0-9]
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func isIdentOrNumberChar(c byte) bool {
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switch {
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case 'A' <= c && c <= 'Z', 'a' <= c && c <= 'z':
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return true
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case '0' <= c && c <= '9':
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return true
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}
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switch c {
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case '-', '+', '.', '_':
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return true
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}
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return false
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}
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func isWhitespace(c byte) bool {
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switch c {
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case ' ', '\t', '\n', '\r':
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return true
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}
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return false
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}
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func isQuote(c byte) bool {
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switch c {
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case '"', '\'':
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return true
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}
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return false
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}
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func (p *textParser) skipWhitespace() {
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i := 0
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for i < len(p.s) && (isWhitespace(p.s[i]) || p.s[i] == '#') {
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if p.s[i] == '#' {
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// comment; skip to end of line or input
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for i < len(p.s) && p.s[i] != '\n' {
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i++
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}
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if i == len(p.s) {
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break
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}
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}
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if p.s[i] == '\n' {
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p.line++
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}
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i++
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}
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p.offset += i
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p.s = p.s[i:len(p.s)]
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if len(p.s) == 0 {
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p.done = true
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}
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}
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func (p *textParser) advance() {
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// Skip whitespace
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p.skipWhitespace()
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if p.done {
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return
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}
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// Start of non-whitespace
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p.cur.err = nil
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p.cur.offset, p.cur.line = p.offset, p.line
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p.cur.unquoted = ""
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switch p.s[0] {
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case '<', '>', '{', '}', ':', '[', ']', ';', ',', '/':
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// Single symbol
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p.cur.value, p.s = p.s[0:1], p.s[1:len(p.s)]
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case '"', '\'':
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// Quoted string
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i := 1
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for i < len(p.s) && p.s[i] != p.s[0] && p.s[i] != '\n' {
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if p.s[i] == '\\' && i+1 < len(p.s) {
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// skip escaped char
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i++
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}
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i++
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}
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if i >= len(p.s) || p.s[i] != p.s[0] {
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p.errorf("unmatched quote")
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return
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}
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unq, err := unquoteC(p.s[1:i], rune(p.s[0]))
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if err != nil {
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p.errorf("invalid quoted string %s: %v", p.s[0:i+1], err)
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return
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}
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p.cur.value, p.s = p.s[0:i+1], p.s[i+1:len(p.s)]
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p.cur.unquoted = unq
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default:
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i := 0
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for i < len(p.s) && isIdentOrNumberChar(p.s[i]) {
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i++
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}
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if i == 0 {
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p.errorf("unexpected byte %#x", p.s[0])
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return
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}
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p.cur.value, p.s = p.s[0:i], p.s[i:len(p.s)]
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}
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p.offset += len(p.cur.value)
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}
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var (
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errBadUTF8 = errors.New("proto: bad UTF-8")
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errBadHex = errors.New("proto: bad hexadecimal")
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)
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func unquoteC(s string, quote rune) (string, error) {
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// This is based on C++'s tokenizer.cc.
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// Despite its name, this is *not* parsing C syntax.
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// For instance, "\0" is an invalid quoted string.
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// Avoid allocation in trivial cases.
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simple := true
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for _, r := range s {
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if r == '\\' || r == quote {
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simple = false
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break
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}
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}
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if simple {
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return s, nil
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}
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buf := make([]byte, 0, 3*len(s)/2)
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for len(s) > 0 {
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r, n := utf8.DecodeRuneInString(s)
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if r == utf8.RuneError && n == 1 {
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return "", errBadUTF8
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}
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s = s[n:]
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if r != '\\' {
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if r < utf8.RuneSelf {
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buf = append(buf, byte(r))
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} else {
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buf = append(buf, string(r)...)
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}
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continue
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}
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ch, tail, err := unescape(s)
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if err != nil {
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return "", err
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}
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buf = append(buf, ch...)
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s = tail
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}
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return string(buf), nil
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}
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func unescape(s string) (ch string, tail string, err error) {
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r, n := utf8.DecodeRuneInString(s)
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if r == utf8.RuneError && n == 1 {
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return "", "", errBadUTF8
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}
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s = s[n:]
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switch r {
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case 'a':
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return "\a", s, nil
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case 'b':
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return "\b", s, nil
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case 'f':
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return "\f", s, nil
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case 'n':
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return "\n", s, nil
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case 'r':
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return "\r", s, nil
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case 't':
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return "\t", s, nil
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case 'v':
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return "\v", s, nil
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case '?':
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return "?", s, nil // trigraph workaround
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case '\'', '"', '\\':
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return string(r), s, nil
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case '0', '1', '2', '3', '4', '5', '6', '7', 'x', 'X':
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if len(s) < 2 {
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return "", "", fmt.Errorf(`\%c requires 2 following digits`, r)
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}
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base := 8
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ss := s[:2]
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s = s[2:]
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if r == 'x' || r == 'X' {
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base = 16
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} else {
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ss = string(r) + ss
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}
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i, err := strconv.ParseUint(ss, base, 8)
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if err != nil {
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return "", "", err
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}
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return string([]byte{byte(i)}), s, nil
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case 'u', 'U':
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n := 4
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if r == 'U' {
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n = 8
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}
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if len(s) < n {
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return "", "", fmt.Errorf(`\%c requires %d digits`, r, n)
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}
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bs := make([]byte, n/2)
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for i := 0; i < n; i += 2 {
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a, ok1 := unhex(s[i])
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b, ok2 := unhex(s[i+1])
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if !ok1 || !ok2 {
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return "", "", errBadHex
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}
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bs[i/2] = a<<4 | b
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}
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s = s[n:]
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return string(bs), s, nil
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}
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return "", "", fmt.Errorf(`unknown escape \%c`, r)
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}
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// Adapted from src/pkg/strconv/quote.go.
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func unhex(b byte) (v byte, ok bool) {
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switch {
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case '0' <= b && b <= '9':
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return b - '0', true
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case 'a' <= b && b <= 'f':
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return b - 'a' + 10, true
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case 'A' <= b && b <= 'F':
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return b - 'A' + 10, true
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}
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return 0, false
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}
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// Back off the parser by one token. Can only be done between calls to next().
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// It makes the next advance() a no-op.
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func (p *textParser) back() { p.backed = true }
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// Advances the parser and returns the new current token.
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func (p *textParser) next() *token {
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if p.backed || p.done {
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p.backed = false
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return &p.cur
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}
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p.advance()
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if p.done {
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p.cur.value = ""
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} else if len(p.cur.value) > 0 && isQuote(p.cur.value[0]) {
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// Look for multiple quoted strings separated by whitespace,
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// and concatenate them.
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cat := p.cur
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for {
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p.skipWhitespace()
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if p.done || !isQuote(p.s[0]) {
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break
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}
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p.advance()
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if p.cur.err != nil {
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return &p.cur
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}
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cat.value += " " + p.cur.value
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cat.unquoted += p.cur.unquoted
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}
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p.done = false // parser may have seen EOF, but we want to return cat
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p.cur = cat
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}
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return &p.cur
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}
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func (p *textParser) consumeToken(s string) error {
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tok := p.next()
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if tok.err != nil {
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return tok.err
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}
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if tok.value != s {
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p.back()
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return p.errorf("expected %q, found %q", s, tok.value)
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}
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return nil
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}
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// Return a RequiredNotSetError indicating which required field was not set.
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func (p *textParser) missingRequiredFieldError(sv reflect.Value) *RequiredNotSetError {
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st := sv.Type()
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sprops := GetProperties(st)
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for i := 0; i < st.NumField(); i++ {
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if !isNil(sv.Field(i)) {
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continue
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}
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props := sprops.Prop[i]
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if props.Required {
|
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return &RequiredNotSetError{fmt.Sprintf("%v.%v", st, props.OrigName)}
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}
|
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}
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return &RequiredNotSetError{fmt.Sprintf("%v.<unknown field name>", st)} // should not happen
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}
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// Returns the index in the struct for the named field, as well as the parsed tag properties.
|
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func structFieldByName(sprops *StructProperties, name string) (int, *Properties, bool) {
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i, ok := sprops.decoderOrigNames[name]
|
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if ok {
|
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return i, sprops.Prop[i], true
|
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}
|
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return -1, nil, false
|
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}
|
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|
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// Consume a ':' from the input stream (if the next token is a colon),
|
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// returning an error if a colon is needed but not present.
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func (p *textParser) checkForColon(props *Properties, typ reflect.Type) *ParseError {
|
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tok := p.next()
|
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if tok.err != nil {
|
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return tok.err
|
||||
}
|
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if tok.value != ":" {
|
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// Colon is optional when the field is a group or message.
|
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needColon := true
|
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switch props.Wire {
|
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case "group":
|
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needColon = false
|
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case "bytes":
|
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// A "bytes" field is either a message, a string, or a repeated field;
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// those three become *T, *string and []T respectively, so we can check for
|
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// this field being a pointer to a non-string.
|
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if typ.Kind() == reflect.Ptr {
|
||||
// *T or *string
|
||||
if typ.Elem().Kind() == reflect.String {
|
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break
|
||||
}
|
||||
} else if typ.Kind() == reflect.Slice {
|
||||
// []T or []*T
|
||||
if typ.Elem().Kind() != reflect.Ptr {
|
||||
break
|
||||
}
|
||||
} else if typ.Kind() == reflect.String {
|
||||
// The proto3 exception is for a string field,
|
||||
// which requires a colon.
|
||||
break
|
||||
}
|
||||
needColon = false
|
||||
}
|
||||
if needColon {
|
||||
return p.errorf("expected ':', found %q", tok.value)
|
||||
}
|
||||
p.back()
|
||||
}
|
||||
return nil
|
||||
}
|
||||
|
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func (p *textParser) readStruct(sv reflect.Value, terminator string) error {
|
||||
st := sv.Type()
|
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sprops := GetProperties(st)
|
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reqCount := sprops.reqCount
|
||||
var reqFieldErr error
|
||||
fieldSet := make(map[string]bool)
|
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// A struct is a sequence of "name: value", terminated by one of
|
||||
// '>' or '}', or the end of the input. A name may also be
|
||||
// "[extension]" or "[type/url]".
|
||||
//
|
||||
// The whole struct can also be an expanded Any message, like:
|
||||
// [type/url] < ... struct contents ... >
|
||||
for {
|
||||
tok := p.next()
|
||||
if tok.err != nil {
|
||||
return tok.err
|
||||
}
|
||||
if tok.value == terminator {
|
||||
break
|
||||
}
|
||||
if tok.value == "[" {
|
||||
// Looks like an extension or an Any.
|
||||
//
|
||||
// TODO: Check whether we need to handle
|
||||
// namespace rooted names (e.g. ".something.Foo").
|
||||
extName, err := p.consumeExtName()
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
|
||||
if s := strings.LastIndex(extName, "/"); s >= 0 {
|
||||
// If it contains a slash, it's an Any type URL.
|
||||
messageName := extName[s+1:]
|
||||
mt := MessageType(messageName)
|
||||
if mt == nil {
|
||||
return p.errorf("unrecognized message %q in google.protobuf.Any", messageName)
|
||||
}
|
||||
tok = p.next()
|
||||
if tok.err != nil {
|
||||
return tok.err
|
||||
}
|
||||
// consume an optional colon
|
||||
if tok.value == ":" {
|
||||
tok = p.next()
|
||||
if tok.err != nil {
|
||||
return tok.err
|
||||
}
|
||||
}
|
||||
var terminator string
|
||||
switch tok.value {
|
||||
case "<":
|
||||
terminator = ">"
|
||||
case "{":
|
||||
terminator = "}"
|
||||
default:
|
||||
return p.errorf("expected '{' or '<', found %q", tok.value)
|
||||
}
|
||||
v := reflect.New(mt.Elem())
|
||||
if pe := p.readStruct(v.Elem(), terminator); pe != nil {
|
||||
return pe
|
||||
}
|
||||
b, err := Marshal(v.Interface().(Message))
|
||||
if err != nil {
|
||||
return p.errorf("failed to marshal message of type %q: %v", messageName, err)
|
||||
}
|
||||
if fieldSet["type_url"] {
|
||||
return p.errorf(anyRepeatedlyUnpacked, "type_url")
|
||||
}
|
||||
if fieldSet["value"] {
|
||||
return p.errorf(anyRepeatedlyUnpacked, "value")
|
||||
}
|
||||
sv.FieldByName("TypeUrl").SetString(extName)
|
||||
sv.FieldByName("Value").SetBytes(b)
|
||||
fieldSet["type_url"] = true
|
||||
fieldSet["value"] = true
|
||||
continue
|
||||
}
|
||||
|
||||
var desc *ExtensionDesc
|
||||
// This could be faster, but it's functional.
|
||||
// TODO: Do something smarter than a linear scan.
|
||||
for _, d := range RegisteredExtensions(reflect.New(st).Interface().(Message)) {
|
||||
if d.Name == extName {
|
||||
desc = d
|
||||
break
|
||||
}
|
||||
}
|
||||
if desc == nil {
|
||||
return p.errorf("unrecognized extension %q", extName)
|
||||
}
|
||||
|
||||
props := &Properties{}
|
||||
props.Parse(desc.Tag)
|
||||
|
||||
typ := reflect.TypeOf(desc.ExtensionType)
|
||||
if err := p.checkForColon(props, typ); err != nil {
|
||||
return err
|
||||
}
|
||||
|
||||
rep := desc.repeated()
|
||||
|
||||
// Read the extension structure, and set it in
|
||||
// the value we're constructing.
|
||||
var ext reflect.Value
|
||||
if !rep {
|
||||
ext = reflect.New(typ).Elem()
|
||||
} else {
|
||||
ext = reflect.New(typ.Elem()).Elem()
|
||||
}
|
||||
if err := p.readAny(ext, props); err != nil {
|
||||
if _, ok := err.(*RequiredNotSetError); !ok {
|
||||
return err
|
||||
}
|
||||
reqFieldErr = err
|
||||
}
|
||||
ep := sv.Addr().Interface().(Message)
|
||||
if !rep {
|
||||
SetExtension(ep, desc, ext.Interface())
|
||||
} else {
|
||||
old, err := GetExtension(ep, desc)
|
||||
var sl reflect.Value
|
||||
if err == nil {
|
||||
sl = reflect.ValueOf(old) // existing slice
|
||||
} else {
|
||||
sl = reflect.MakeSlice(typ, 0, 1)
|
||||
}
|
||||
sl = reflect.Append(sl, ext)
|
||||
SetExtension(ep, desc, sl.Interface())
|
||||
}
|
||||
if err := p.consumeOptionalSeparator(); err != nil {
|
||||
return err
|
||||
}
|
||||
continue
|
||||
}
|
||||
|
||||
// This is a normal, non-extension field.
|
||||
name := tok.value
|
||||
var dst reflect.Value
|
||||
fi, props, ok := structFieldByName(sprops, name)
|
||||
if ok {
|
||||
dst = sv.Field(fi)
|
||||
} else if oop, ok := sprops.OneofTypes[name]; ok {
|
||||
// It is a oneof.
|
||||
props = oop.Prop
|
||||
nv := reflect.New(oop.Type.Elem())
|
||||
dst = nv.Elem().Field(0)
|
||||
field := sv.Field(oop.Field)
|
||||
if !field.IsNil() {
|
||||
return p.errorf("field '%s' would overwrite already parsed oneof '%s'", name, sv.Type().Field(oop.Field).Name)
|
||||
}
|
||||
field.Set(nv)
|
||||
}
|
||||
if !dst.IsValid() {
|
||||
return p.errorf("unknown field name %q in %v", name, st)
|
||||
}
|
||||
|
||||
if dst.Kind() == reflect.Map {
|
||||
// Consume any colon.
|
||||
if err := p.checkForColon(props, dst.Type()); err != nil {
|
||||
return err
|
||||
}
|
||||
|
||||
// Construct the map if it doesn't already exist.
|
||||
if dst.IsNil() {
|
||||
dst.Set(reflect.MakeMap(dst.Type()))
|
||||
}
|
||||
key := reflect.New(dst.Type().Key()).Elem()
|
||||
val := reflect.New(dst.Type().Elem()).Elem()
|
||||
|
||||
// The map entry should be this sequence of tokens:
|
||||
// < key : KEY value : VALUE >
|
||||
// However, implementations may omit key or value, and technically
|
||||
// we should support them in any order. See b/28924776 for a time
|
||||
// this went wrong.
|
||||
|
||||
tok := p.next()
|
||||
var terminator string
|
||||
switch tok.value {
|
||||
case "<":
|
||||
terminator = ">"
|
||||
case "{":
|
||||
terminator = "}"
|
||||
default:
|
||||
return p.errorf("expected '{' or '<', found %q", tok.value)
|
||||
}
|
||||
for {
|
||||
tok := p.next()
|
||||
if tok.err != nil {
|
||||
return tok.err
|
||||
}
|
||||
if tok.value == terminator {
|
||||
break
|
||||
}
|
||||
switch tok.value {
|
||||
case "key":
|
||||
if err := p.consumeToken(":"); err != nil {
|
||||
return err
|
||||
}
|
||||
if err := p.readAny(key, props.mkeyprop); err != nil {
|
||||
return err
|
||||
}
|
||||
if err := p.consumeOptionalSeparator(); err != nil {
|
||||
return err
|
||||
}
|
||||
case "value":
|
||||
if err := p.checkForColon(props.mvalprop, dst.Type().Elem()); err != nil {
|
||||
return err
|
||||
}
|
||||
if err := p.readAny(val, props.mvalprop); err != nil {
|
||||
return err
|
||||
}
|
||||
if err := p.consumeOptionalSeparator(); err != nil {
|
||||
return err
|
||||
}
|
||||
default:
|
||||
p.back()
|
||||
return p.errorf(`expected "key", "value", or %q, found %q`, terminator, tok.value)
|
||||
}
|
||||
}
|
||||
|
||||
dst.SetMapIndex(key, val)
|
||||
continue
|
||||
}
|
||||
|
||||
// Check that it's not already set if it's not a repeated field.
|
||||
if !props.Repeated && fieldSet[name] {
|
||||
return p.errorf("non-repeated field %q was repeated", name)
|
||||
}
|
||||
|
||||
if err := p.checkForColon(props, dst.Type()); err != nil {
|
||||
return err
|
||||
}
|
||||
|
||||
// Parse into the field.
|
||||
fieldSet[name] = true
|
||||
if err := p.readAny(dst, props); err != nil {
|
||||
if _, ok := err.(*RequiredNotSetError); !ok {
|
||||
return err
|
||||
}
|
||||
reqFieldErr = err
|
||||
}
|
||||
if props.Required {
|
||||
reqCount--
|
||||
}
|
||||
|
||||
if err := p.consumeOptionalSeparator(); err != nil {
|
||||
return err
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
if reqCount > 0 {
|
||||
return p.missingRequiredFieldError(sv)
|
||||
}
|
||||
return reqFieldErr
|
||||
}
|
||||
|
||||
// consumeExtName consumes extension name or expanded Any type URL and the
|
||||
// following ']'. It returns the name or URL consumed.
|
||||
func (p *textParser) consumeExtName() (string, error) {
|
||||
tok := p.next()
|
||||
if tok.err != nil {
|
||||
return "", tok.err
|
||||
}
|
||||
|
||||
// If extension name or type url is quoted, it's a single token.
|
||||
if len(tok.value) > 2 && isQuote(tok.value[0]) && tok.value[len(tok.value)-1] == tok.value[0] {
|
||||
name, err := unquoteC(tok.value[1:len(tok.value)-1], rune(tok.value[0]))
|
||||
if err != nil {
|
||||
return "", err
|
||||
}
|
||||
return name, p.consumeToken("]")
|
||||
}
|
||||
|
||||
// Consume everything up to "]"
|
||||
var parts []string
|
||||
for tok.value != "]" {
|
||||
parts = append(parts, tok.value)
|
||||
tok = p.next()
|
||||
if tok.err != nil {
|
||||
return "", p.errorf("unrecognized type_url or extension name: %s", tok.err)
|
||||
}
|
||||
}
|
||||
return strings.Join(parts, ""), nil
|
||||
}
|
||||
|
||||
// consumeOptionalSeparator consumes an optional semicolon or comma.
|
||||
// It is used in readStruct to provide backward compatibility.
|
||||
func (p *textParser) consumeOptionalSeparator() error {
|
||||
tok := p.next()
|
||||
if tok.err != nil {
|
||||
return tok.err
|
||||
}
|
||||
if tok.value != ";" && tok.value != "," {
|
||||
p.back()
|
||||
}
|
||||
return nil
|
||||
}
|
||||
|
||||
func (p *textParser) readAny(v reflect.Value, props *Properties) error {
|
||||
tok := p.next()
|
||||
if tok.err != nil {
|
||||
return tok.err
|
||||
}
|
||||
if tok.value == "" {
|
||||
return p.errorf("unexpected EOF")
|
||||
}
|
||||
|
||||
switch fv := v; fv.Kind() {
|
||||
case reflect.Slice:
|
||||
at := v.Type()
|
||||
if at.Elem().Kind() == reflect.Uint8 {
|
||||
// Special case for []byte
|
||||
if tok.value[0] != '"' && tok.value[0] != '\'' {
|
||||
// Deliberately written out here, as the error after
|
||||
// this switch statement would write "invalid []byte: ...",
|
||||
// which is not as user-friendly.
|
||||
return p.errorf("invalid string: %v", tok.value)
|
||||
}
|
||||
bytes := []byte(tok.unquoted)
|
||||
fv.Set(reflect.ValueOf(bytes))
|
||||
return nil
|
||||
}
|
||||
// Repeated field.
|
||||
if tok.value == "[" {
|
||||
// Repeated field with list notation, like [1,2,3].
|
||||
for {
|
||||
fv.Set(reflect.Append(fv, reflect.New(at.Elem()).Elem()))
|
||||
err := p.readAny(fv.Index(fv.Len()-1), props)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
tok := p.next()
|
||||
if tok.err != nil {
|
||||
return tok.err
|
||||
}
|
||||
if tok.value == "]" {
|
||||
break
|
||||
}
|
||||
if tok.value != "," {
|
||||
return p.errorf("Expected ']' or ',' found %q", tok.value)
|
||||
}
|
||||
}
|
||||
return nil
|
||||
}
|
||||
// One value of the repeated field.
|
||||
p.back()
|
||||
fv.Set(reflect.Append(fv, reflect.New(at.Elem()).Elem()))
|
||||
return p.readAny(fv.Index(fv.Len()-1), props)
|
||||
case reflect.Bool:
|
||||
// true/1/t/True or false/f/0/False.
|
||||
switch tok.value {
|
||||
case "true", "1", "t", "True":
|
||||
fv.SetBool(true)
|
||||
return nil
|
||||
case "false", "0", "f", "False":
|
||||
fv.SetBool(false)
|
||||
return nil
|
||||
}
|
||||
case reflect.Float32, reflect.Float64:
|
||||
v := tok.value
|
||||
// Ignore 'f' for compatibility with output generated by C++, but don't
|
||||
// remove 'f' when the value is "-inf" or "inf".
|
||||
if strings.HasSuffix(v, "f") && tok.value != "-inf" && tok.value != "inf" {
|
||||
v = v[:len(v)-1]
|
||||
}
|
||||
if f, err := strconv.ParseFloat(v, fv.Type().Bits()); err == nil {
|
||||
fv.SetFloat(f)
|
||||
return nil
|
||||
}
|
||||
case reflect.Int32:
|
||||
if x, err := strconv.ParseInt(tok.value, 0, 32); err == nil {
|
||||
fv.SetInt(x)
|
||||
return nil
|
||||
}
|
||||
|
||||
if len(props.Enum) == 0 {
|
||||
break
|
||||
}
|
||||
m, ok := enumValueMaps[props.Enum]
|
||||
if !ok {
|
||||
break
|
||||
}
|
||||
x, ok := m[tok.value]
|
||||
if !ok {
|
||||
break
|
||||
}
|
||||
fv.SetInt(int64(x))
|
||||
return nil
|
||||
case reflect.Int64:
|
||||
if x, err := strconv.ParseInt(tok.value, 0, 64); err == nil {
|
||||
fv.SetInt(x)
|
||||
return nil
|
||||
}
|
||||
|
||||
case reflect.Ptr:
|
||||
// A basic field (indirected through pointer), or a repeated message/group
|
||||
p.back()
|
||||
fv.Set(reflect.New(fv.Type().Elem()))
|
||||
return p.readAny(fv.Elem(), props)
|
||||
case reflect.String:
|
||||
if tok.value[0] == '"' || tok.value[0] == '\'' {
|
||||
fv.SetString(tok.unquoted)
|
||||
return nil
|
||||
}
|
||||
case reflect.Struct:
|
||||
var terminator string
|
||||
switch tok.value {
|
||||
case "{":
|
||||
terminator = "}"
|
||||
case "<":
|
||||
terminator = ">"
|
||||
default:
|
||||
return p.errorf("expected '{' or '<', found %q", tok.value)
|
||||
}
|
||||
// TODO: Handle nested messages which implement encoding.TextUnmarshaler.
|
||||
return p.readStruct(fv, terminator)
|
||||
case reflect.Uint32:
|
||||
if x, err := strconv.ParseUint(tok.value, 0, 32); err == nil {
|
||||
fv.SetUint(x)
|
||||
return nil
|
||||
}
|
||||
case reflect.Uint64:
|
||||
if x, err := strconv.ParseUint(tok.value, 0, 64); err == nil {
|
||||
fv.SetUint(x)
|
||||
return nil
|
||||
}
|
||||
}
|
||||
return p.errorf("invalid %v: %v", v.Type(), tok.value)
|
||||
}
|
||||
|
||||
// UnmarshalText reads a protocol buffer in Text format. UnmarshalText resets pb
|
||||
// before starting to unmarshal, so any existing data in pb is always removed.
|
||||
// If a required field is not set and no other error occurs,
|
||||
// UnmarshalText returns *RequiredNotSetError.
|
||||
func UnmarshalText(s string, pb Message) error {
|
||||
if um, ok := pb.(encoding.TextUnmarshaler); ok {
|
||||
err := um.UnmarshalText([]byte(s))
|
||||
return err
|
||||
}
|
||||
pb.Reset()
|
||||
v := reflect.ValueOf(pb)
|
||||
if pe := newTextParser(s).readStruct(v.Elem(), ""); pe != nil {
|
||||
return pe
|
||||
}
|
||||
return nil
|
||||
}
|
||||
Loading…
Add table
Add a link
Reference in a new issue