diff options
author | nanohard <nanohard@users.noreply.github.com> | 2018-08-18 19:29:35 -0500 |
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committer | Steve Manuel <nilslice@gmail.com> | 2018-08-19 21:08:03 -0600 |
commit | 3c15499b7dd96f68262f59a368cf215b4b4c39a1 (patch) | |
tree | 12202f2599bba2f4107d679363480d56cf361f79 /cmd/ponzu/vendor/github.com/gofrs/uuid/uuid.go | |
parent | 83d740d8437d6cd55ad5ac8e3a293221c24260df (diff) |
Replaced satori/go.uuid with gofrs/uuid. (#268)
* Changed files to use new uuid pkg.
* Replace satori/go.uuid with gofrs/uuid. Closes #257.
* Deleted satori/go.uuid folder. Closes #257.
Diffstat (limited to 'cmd/ponzu/vendor/github.com/gofrs/uuid/uuid.go')
-rw-r--r-- | cmd/ponzu/vendor/github.com/gofrs/uuid/uuid.go | 159 |
1 files changed, 159 insertions, 0 deletions
diff --git a/cmd/ponzu/vendor/github.com/gofrs/uuid/uuid.go b/cmd/ponzu/vendor/github.com/gofrs/uuid/uuid.go new file mode 100644 index 0000000..a2558b6 --- /dev/null +++ b/cmd/ponzu/vendor/github.com/gofrs/uuid/uuid.go @@ -0,0 +1,159 @@ +// Copyright (C) 2013-2018 by Maxim Bublis <b@codemonkey.ru> +// +// Permission is hereby granted, free of charge, to any person obtaining +// a copy of this software and associated documentation files (the +// "Software"), to deal in the Software without restriction, including +// without limitation the rights to use, copy, modify, merge, publish, +// distribute, sublicense, and/or sell copies of the Software, and to +// permit persons to whom the Software is furnished to do so, subject to +// the following conditions: +// +// The above copyright notice and this permission notice shall be +// included in all copies or substantial portions of the Software. +// +// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, +// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF +// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND +// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE +// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION +// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION +// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + +// Package uuid provides implementations of the Universally Unique Identifier (UUID), as specified in RFC-4122 and DCE 1.1. +// +// RFC-4122[1] provides the specification for versions 1, 3, 4, and 5. +// +// DCE 1.1[2] provides the specification for version 2. +// +// [1] https://tools.ietf.org/html/rfc4122 +// [2] http://pubs.opengroup.org/onlinepubs/9696989899/chap5.htm#tagcjh_08_02_01_01 +package uuid + +import ( + "encoding/hex" +) + +// Size of a UUID in bytes. +const Size = 16 + +// UUID is an array type to represent the value of a UUID, as defined in RFC-4122. +type UUID [Size]byte + +// UUID versions. +const ( + _ byte = iota + V1 // Version 1 (date-time and MAC address) + V2 // Version 2 (date-time and MAC address, DCE security version) + V3 // Version 3 (namespace name-based) + V4 // Version 4 (random) + V5 // Version 5 (namespace name-based) +) + +// UUID layout variants. +const ( + VariantNCS byte = iota + VariantRFC4122 + VariantMicrosoft + VariantFuture +) + +// UUID DCE domains. +const ( + DomainPerson = iota + DomainGroup + DomainOrg +) + +// String parse helpers. +var ( + urnPrefix = []byte("urn:uuid:") + byteGroups = []int{8, 4, 4, 4, 12} +) + +// Nil is the nil UUID, as specified in RFC-4122, that has all 128 bits set to +// zero. +var Nil = UUID{} + +// Predefined namespace UUIDs. +var ( + NamespaceDNS = Must(FromString("6ba7b810-9dad-11d1-80b4-00c04fd430c8")) + NamespaceURL = Must(FromString("6ba7b811-9dad-11d1-80b4-00c04fd430c8")) + NamespaceOID = Must(FromString("6ba7b812-9dad-11d1-80b4-00c04fd430c8")) + NamespaceX500 = Must(FromString("6ba7b814-9dad-11d1-80b4-00c04fd430c8")) +) + +// Version returns the algorithm version used to generate the UUID. +func (u UUID) Version() byte { + return u[6] >> 4 +} + +// Variant returns the UUID layout variant. +func (u UUID) Variant() byte { + switch { + case (u[8] >> 7) == 0x00: + return VariantNCS + case (u[8] >> 6) == 0x02: + return VariantRFC4122 + case (u[8] >> 5) == 0x06: + return VariantMicrosoft + case (u[8] >> 5) == 0x07: + fallthrough + default: + return VariantFuture + } +} + +// Bytes returns a byte slice representation of the UUID. +func (u UUID) Bytes() []byte { + return u[:] +} + +// String returns a canonical RFC-4122 string representation of the UUID: +// xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx. +func (u UUID) String() string { + buf := make([]byte, 36) + + hex.Encode(buf[0:8], u[0:4]) + buf[8] = '-' + hex.Encode(buf[9:13], u[4:6]) + buf[13] = '-' + hex.Encode(buf[14:18], u[6:8]) + buf[18] = '-' + hex.Encode(buf[19:23], u[8:10]) + buf[23] = '-' + hex.Encode(buf[24:], u[10:]) + + return string(buf) +} + +// SetVersion sets the version bits. +func (u *UUID) SetVersion(v byte) { + u[6] = (u[6] & 0x0f) | (v << 4) +} + +// SetVariant sets the variant bits. +func (u *UUID) SetVariant(v byte) { + switch v { + case VariantNCS: + u[8] = (u[8]&(0xff>>1) | (0x00 << 7)) + case VariantRFC4122: + u[8] = (u[8]&(0xff>>2) | (0x02 << 6)) + case VariantMicrosoft: + u[8] = (u[8]&(0xff>>3) | (0x06 << 5)) + case VariantFuture: + fallthrough + default: + u[8] = (u[8]&(0xff>>3) | (0x07 << 5)) + } +} + +// Must is a helper that wraps a call to a function returning (UUID, error) +// and panics if the error is non-nil. It is intended for use in variable +// initializations such as +// var packageUUID = uuid.Must(uuid.FromString("123e4567-e89b-12d3-a456-426655440000")) +func Must(u UUID, err error) UUID { + if err != nil { + panic(err) + } + return u +} |