From 621e49bb465f500cc46d47e39e828cf76d6381d7 Mon Sep 17 00:00:00 2001 From: Dimitri Sokolyuk Date: Tue, 24 Jul 2018 14:35:44 +0200 Subject: update vendor --- vendor/golang.org/x/text/internal/catmsg/varint.go | 62 ++++++++++++++++++++++ 1 file changed, 62 insertions(+) create mode 100644 vendor/golang.org/x/text/internal/catmsg/varint.go (limited to 'vendor/golang.org/x/text/internal/catmsg/varint.go') diff --git a/vendor/golang.org/x/text/internal/catmsg/varint.go b/vendor/golang.org/x/text/internal/catmsg/varint.go new file mode 100644 index 0000000..a2cee2c --- /dev/null +++ b/vendor/golang.org/x/text/internal/catmsg/varint.go @@ -0,0 +1,62 @@ +// Copyright 2017 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 catmsg + +// This file implements varint encoding analogous to the one in encoding/binary. +// We need a string version of this function, so we add that here and then add +// the rest for consistency. + +import "errors" + +var ( + errIllegalVarint = errors.New("catmsg: illegal varint") + errVarintTooLarge = errors.New("catmsg: varint too large for uint64") +) + +const maxVarintBytes = 10 // maximum length of a varint + +// encodeUint encodes x as a variable-sized integer into buf and returns the +// number of bytes written. buf must be at least maxVarintBytes long +func encodeUint(buf []byte, x uint64) (n int) { + for ; x > 127; n++ { + buf[n] = 0x80 | uint8(x&0x7F) + x >>= 7 + } + buf[n] = uint8(x) + n++ + return n +} + +func decodeUintString(s string) (x uint64, size int, err error) { + i := 0 + for shift := uint(0); shift < 64; shift += 7 { + if i >= len(s) { + return 0, i, errIllegalVarint + } + b := uint64(s[i]) + i++ + x |= (b & 0x7F) << shift + if b&0x80 == 0 { + return x, i, nil + } + } + return 0, i, errVarintTooLarge +} + +func decodeUint(b []byte) (x uint64, size int, err error) { + i := 0 + for shift := uint(0); shift < 64; shift += 7 { + if i >= len(b) { + return 0, i, errIllegalVarint + } + c := uint64(b[i]) + i++ + x |= (c & 0x7F) << shift + if c&0x80 == 0 { + return x, i, nil + } + } + return 0, i, errVarintTooLarge +} -- cgit v1.2.3