mirror of
https://github.com/fnproject/fn.git
synced 2022-10-28 21:29:17 +03:00
51ff7caeb2
* add DateTime sans mgo * change all uses of strfmt.DateTime to common.DateTime, remove test strfmt usage * remove api tests, system-test dep on api test multiple reasons to remove the api tests: * awkward dependency with fn_go meant generating bindings on a branched fn to vendor those to test new stuff. this is at a minimum not at all intuitive, worth it, nor a fun way to spend the finite amount of time we have to live. * api tests only tested a subset of functionality that the server/ api tests already test, and we risk having tests where one tests some thing and the other doesn't. let's not. we have too many test suites as it is, and these pretty much only test that we updated the fn_go bindings, which is actually a hassle as noted above and the cli will pretty quickly figure out anyway. * fn_go relies on openapi, which relies on mgo, which is deprecated and we'd like to remove as a dependency. openapi is a _huge_ dep built in a NIH fashion, that cannot simply remove the mgo dep as users may be using it. we've now stolen their date time and otherwise killed usage of it in fn core, for fn_go it still exists but that's less of a problem. * update deps removals: * easyjson * mgo * go-openapi * mapstructure * fn_go * purell * go-validator also, had to lock docker. we shouldn't use docker on master anyway, they strongly advise against that. had no luck with latest version rev, so i locked it to what we were using before. until next time. the rest is just playing dep roulette, those end up removing a ton tho * fix exec test to work * account for john le cache
653 lines
16 KiB
Go
653 lines
16 KiB
Go
// Copyright (c) 2012-2018 Ugorji Nwoke. All rights reserved.
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// Use of this source code is governed by a MIT license found in the LICENSE file.
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package codec
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import (
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"math"
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"reflect"
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"time"
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)
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const (
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_ uint8 = iota
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simpleVdNil = 1
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simpleVdFalse = 2
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simpleVdTrue = 3
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simpleVdFloat32 = 4
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simpleVdFloat64 = 5
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// each lasts for 4 (ie n, n+1, n+2, n+3)
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simpleVdPosInt = 8
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simpleVdNegInt = 12
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simpleVdTime = 24
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// containers: each lasts for 4 (ie n, n+1, n+2, ... n+7)
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simpleVdString = 216
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simpleVdByteArray = 224
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simpleVdArray = 232
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simpleVdMap = 240
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simpleVdExt = 248
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)
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type simpleEncDriver struct {
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noBuiltInTypes
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// encNoSeparator
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e *Encoder
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h *SimpleHandle
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w encWriter
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b [8]byte
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// c containerState
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encDriverTrackContainerWriter
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// encDriverNoopContainerWriter
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_ [2]uint64 // padding
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}
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func (e *simpleEncDriver) EncodeNil() {
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e.w.writen1(simpleVdNil)
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}
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func (e *simpleEncDriver) EncodeBool(b bool) {
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if e.h.EncZeroValuesAsNil && e.c != containerMapKey && !b {
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e.EncodeNil()
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return
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}
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if b {
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e.w.writen1(simpleVdTrue)
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} else {
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e.w.writen1(simpleVdFalse)
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}
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}
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func (e *simpleEncDriver) EncodeFloat32(f float32) {
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if e.h.EncZeroValuesAsNil && e.c != containerMapKey && f == 0.0 {
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e.EncodeNil()
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return
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}
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e.w.writen1(simpleVdFloat32)
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bigenHelper{e.b[:4], e.w}.writeUint32(math.Float32bits(f))
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}
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func (e *simpleEncDriver) EncodeFloat64(f float64) {
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if e.h.EncZeroValuesAsNil && e.c != containerMapKey && f == 0.0 {
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e.EncodeNil()
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return
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}
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e.w.writen1(simpleVdFloat64)
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bigenHelper{e.b[:8], e.w}.writeUint64(math.Float64bits(f))
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}
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func (e *simpleEncDriver) EncodeInt(v int64) {
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if v < 0 {
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e.encUint(uint64(-v), simpleVdNegInt)
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} else {
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e.encUint(uint64(v), simpleVdPosInt)
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}
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}
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func (e *simpleEncDriver) EncodeUint(v uint64) {
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e.encUint(v, simpleVdPosInt)
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}
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func (e *simpleEncDriver) encUint(v uint64, bd uint8) {
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if e.h.EncZeroValuesAsNil && e.c != containerMapKey && v == 0 {
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e.EncodeNil()
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return
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}
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if v <= math.MaxUint8 {
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e.w.writen2(bd, uint8(v))
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} else if v <= math.MaxUint16 {
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e.w.writen1(bd + 1)
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bigenHelper{e.b[:2], e.w}.writeUint16(uint16(v))
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} else if v <= math.MaxUint32 {
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e.w.writen1(bd + 2)
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bigenHelper{e.b[:4], e.w}.writeUint32(uint32(v))
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} else { // if v <= math.MaxUint64 {
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e.w.writen1(bd + 3)
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bigenHelper{e.b[:8], e.w}.writeUint64(v)
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}
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}
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func (e *simpleEncDriver) encLen(bd byte, length int) {
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if length == 0 {
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e.w.writen1(bd)
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} else if length <= math.MaxUint8 {
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e.w.writen1(bd + 1)
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e.w.writen1(uint8(length))
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} else if length <= math.MaxUint16 {
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e.w.writen1(bd + 2)
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bigenHelper{e.b[:2], e.w}.writeUint16(uint16(length))
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} else if int64(length) <= math.MaxUint32 {
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e.w.writen1(bd + 3)
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bigenHelper{e.b[:4], e.w}.writeUint32(uint32(length))
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} else {
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e.w.writen1(bd + 4)
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bigenHelper{e.b[:8], e.w}.writeUint64(uint64(length))
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}
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}
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func (e *simpleEncDriver) EncodeExt(rv interface{}, xtag uint64, ext Ext, _ *Encoder) {
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bs := ext.WriteExt(rv)
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if bs == nil {
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e.EncodeNil()
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return
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}
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e.encodeExtPreamble(uint8(xtag), len(bs))
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e.w.writeb(bs)
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}
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func (e *simpleEncDriver) EncodeRawExt(re *RawExt, _ *Encoder) {
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e.encodeExtPreamble(uint8(re.Tag), len(re.Data))
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e.w.writeb(re.Data)
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}
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func (e *simpleEncDriver) encodeExtPreamble(xtag byte, length int) {
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e.encLen(simpleVdExt, length)
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e.w.writen1(xtag)
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}
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func (e *simpleEncDriver) WriteArrayStart(length int) {
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e.c = containerArrayStart
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e.encLen(simpleVdArray, length)
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}
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func (e *simpleEncDriver) WriteMapStart(length int) {
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e.c = containerMapStart
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e.encLen(simpleVdMap, length)
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}
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func (e *simpleEncDriver) EncodeString(c charEncoding, v string) {
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if false && e.h.EncZeroValuesAsNil && e.c != containerMapKey && v == "" {
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e.EncodeNil()
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return
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}
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e.encLen(simpleVdString, len(v))
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e.w.writestr(v)
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}
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// func (e *simpleEncDriver) EncodeSymbol(v string) {
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// e.EncodeString(cUTF8, v)
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// }
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func (e *simpleEncDriver) EncodeStringBytes(c charEncoding, v []byte) {
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// if e.h.EncZeroValuesAsNil && e.c != containerMapKey && v == nil {
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if v == nil {
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e.EncodeNil()
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return
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}
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e.encLen(simpleVdByteArray, len(v))
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e.w.writeb(v)
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}
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func (e *simpleEncDriver) EncodeTime(t time.Time) {
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// if e.h.EncZeroValuesAsNil && e.c != containerMapKey && t.IsZero() {
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if t.IsZero() {
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e.EncodeNil()
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return
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}
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v, err := t.MarshalBinary()
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if err != nil {
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e.e.errorv(err)
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return
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}
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// time.Time marshalbinary takes about 14 bytes.
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e.w.writen2(simpleVdTime, uint8(len(v)))
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e.w.writeb(v)
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}
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//------------------------------------
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type simpleDecDriver struct {
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d *Decoder
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h *SimpleHandle
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r decReader
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bdRead bool
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bd byte
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br bool // a bytes reader?
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c containerState
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// b [scratchByteArrayLen]byte
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noBuiltInTypes
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// noStreamingCodec
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decDriverNoopContainerReader
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_ [3]uint64 // padding
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}
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func (d *simpleDecDriver) readNextBd() {
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d.bd = d.r.readn1()
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d.bdRead = true
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}
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func (d *simpleDecDriver) uncacheRead() {
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if d.bdRead {
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d.r.unreadn1()
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d.bdRead = false
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}
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}
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func (d *simpleDecDriver) ContainerType() (vt valueType) {
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if !d.bdRead {
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d.readNextBd()
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}
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switch d.bd {
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case simpleVdNil:
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return valueTypeNil
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case simpleVdByteArray, simpleVdByteArray + 1,
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simpleVdByteArray + 2, simpleVdByteArray + 3, simpleVdByteArray + 4:
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return valueTypeBytes
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case simpleVdString, simpleVdString + 1,
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simpleVdString + 2, simpleVdString + 3, simpleVdString + 4:
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return valueTypeString
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case simpleVdArray, simpleVdArray + 1,
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simpleVdArray + 2, simpleVdArray + 3, simpleVdArray + 4:
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return valueTypeArray
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case simpleVdMap, simpleVdMap + 1,
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simpleVdMap + 2, simpleVdMap + 3, simpleVdMap + 4:
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return valueTypeMap
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// case simpleVdTime:
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// return valueTypeTime
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}
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// else {
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// d.d.errorf("isContainerType: unsupported parameter: %v", vt)
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// }
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return valueTypeUnset
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}
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func (d *simpleDecDriver) TryDecodeAsNil() bool {
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if !d.bdRead {
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d.readNextBd()
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}
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if d.bd == simpleVdNil {
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d.bdRead = false
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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 (d *simpleDecDriver) decCheckInteger() (ui uint64, neg bool) {
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if !d.bdRead {
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d.readNextBd()
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}
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switch d.bd {
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case simpleVdPosInt:
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ui = uint64(d.r.readn1())
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case simpleVdPosInt + 1:
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ui = uint64(bigen.Uint16(d.r.readx(2)))
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case simpleVdPosInt + 2:
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ui = uint64(bigen.Uint32(d.r.readx(4)))
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case simpleVdPosInt + 3:
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ui = uint64(bigen.Uint64(d.r.readx(8)))
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case simpleVdNegInt:
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ui = uint64(d.r.readn1())
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neg = true
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case simpleVdNegInt + 1:
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ui = uint64(bigen.Uint16(d.r.readx(2)))
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neg = true
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case simpleVdNegInt + 2:
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ui = uint64(bigen.Uint32(d.r.readx(4)))
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neg = true
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case simpleVdNegInt + 3:
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ui = uint64(bigen.Uint64(d.r.readx(8)))
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neg = true
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default:
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d.d.errorf("integer only valid from pos/neg integer1..8. Invalid descriptor: %v", d.bd)
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return
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}
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// don't do this check, because callers may only want the unsigned value.
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// if ui > math.MaxInt64 {
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// d.d.errorf("decIntAny: Integer out of range for signed int64: %v", ui)
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// return
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// }
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return
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}
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func (d *simpleDecDriver) DecodeInt64() (i int64) {
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ui, neg := d.decCheckInteger()
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i = chkOvf.SignedIntV(ui)
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if neg {
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i = -i
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}
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d.bdRead = false
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return
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}
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func (d *simpleDecDriver) DecodeUint64() (ui uint64) {
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ui, neg := d.decCheckInteger()
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if neg {
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d.d.errorf("assigning negative signed value to unsigned type")
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return
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}
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d.bdRead = false
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return
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}
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func (d *simpleDecDriver) DecodeFloat64() (f float64) {
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if !d.bdRead {
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d.readNextBd()
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}
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if d.bd == simpleVdFloat32 {
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f = float64(math.Float32frombits(bigen.Uint32(d.r.readx(4))))
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} else if d.bd == simpleVdFloat64 {
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f = math.Float64frombits(bigen.Uint64(d.r.readx(8)))
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} else {
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if d.bd >= simpleVdPosInt && d.bd <= simpleVdNegInt+3 {
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f = float64(d.DecodeInt64())
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} else {
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d.d.errorf("float only valid from float32/64: Invalid descriptor: %v", d.bd)
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return
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}
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}
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d.bdRead = false
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return
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}
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// bool can be decoded from bool only (single byte).
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func (d *simpleDecDriver) DecodeBool() (b bool) {
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if !d.bdRead {
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d.readNextBd()
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}
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if d.bd == simpleVdTrue {
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b = true
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} else if d.bd == simpleVdFalse {
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} else {
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d.d.errorf("cannot decode bool - %s: %x", msgBadDesc, d.bd)
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return
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}
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d.bdRead = false
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return
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}
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func (d *simpleDecDriver) ReadMapStart() (length int) {
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if !d.bdRead {
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d.readNextBd()
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}
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d.bdRead = false
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d.c = containerMapStart
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return d.decLen()
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}
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func (d *simpleDecDriver) ReadArrayStart() (length int) {
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if !d.bdRead {
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d.readNextBd()
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}
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d.bdRead = false
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d.c = containerArrayStart
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return d.decLen()
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}
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func (d *simpleDecDriver) ReadArrayElem() {
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d.c = containerArrayElem
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}
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func (d *simpleDecDriver) ReadArrayEnd() {
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d.c = containerArrayEnd
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}
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func (d *simpleDecDriver) ReadMapElemKey() {
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d.c = containerMapKey
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}
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func (d *simpleDecDriver) ReadMapElemValue() {
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d.c = containerMapValue
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}
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func (d *simpleDecDriver) ReadMapEnd() {
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d.c = containerMapEnd
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}
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func (d *simpleDecDriver) decLen() int {
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switch d.bd % 8 {
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case 0:
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return 0
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case 1:
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return int(d.r.readn1())
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case 2:
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return int(bigen.Uint16(d.r.readx(2)))
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case 3:
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ui := uint64(bigen.Uint32(d.r.readx(4)))
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if chkOvf.Uint(ui, intBitsize) {
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d.d.errorf("overflow integer: %v", ui)
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return 0
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}
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return int(ui)
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case 4:
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ui := bigen.Uint64(d.r.readx(8))
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if chkOvf.Uint(ui, intBitsize) {
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d.d.errorf("overflow integer: %v", ui)
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return 0
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}
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return int(ui)
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}
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d.d.errorf("cannot read length: bd%%8 must be in range 0..4. Got: %d", d.bd%8)
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return -1
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}
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func (d *simpleDecDriver) DecodeString() (s string) {
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return string(d.DecodeBytes(d.d.b[:], true))
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}
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func (d *simpleDecDriver) DecodeStringAsBytes() (s []byte) {
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return d.DecodeBytes(d.d.b[:], true)
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}
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func (d *simpleDecDriver) DecodeBytes(bs []byte, zerocopy bool) (bsOut []byte) {
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if !d.bdRead {
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d.readNextBd()
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}
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if d.bd == simpleVdNil {
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d.bdRead = false
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return
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}
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// check if an "array" of uint8's (see ContainerType for how to infer if an array)
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if d.bd >= simpleVdArray && d.bd <= simpleVdMap+4 {
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if len(bs) == 0 && zerocopy {
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bs = d.d.b[:]
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}
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bsOut, _ = fastpathTV.DecSliceUint8V(bs, true, d.d)
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return
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}
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clen := d.decLen()
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d.bdRead = false
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if zerocopy {
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if d.br {
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return d.r.readx(clen)
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} else if len(bs) == 0 {
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bs = d.d.b[:]
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}
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}
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return decByteSlice(d.r, clen, d.d.h.MaxInitLen, bs)
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}
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func (d *simpleDecDriver) DecodeTime() (t time.Time) {
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if !d.bdRead {
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d.readNextBd()
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}
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if d.bd == simpleVdNil {
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d.bdRead = false
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return
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}
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if d.bd != simpleVdTime {
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d.d.errorf("invalid descriptor for time.Time - expect 0x%x, received 0x%x", simpleVdTime, d.bd)
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return
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}
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d.bdRead = false
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clen := int(d.r.readn1())
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b := d.r.readx(clen)
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if err := (&t).UnmarshalBinary(b); err != nil {
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d.d.errorv(err)
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}
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return
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}
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func (d *simpleDecDriver) DecodeExt(rv interface{}, xtag uint64, ext Ext) (realxtag uint64) {
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if xtag > 0xff {
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d.d.errorf("ext: tag must be <= 0xff; got: %v", xtag)
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return
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}
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realxtag1, xbs := d.decodeExtV(ext != nil, uint8(xtag))
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realxtag = uint64(realxtag1)
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if ext == nil {
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re := rv.(*RawExt)
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re.Tag = realxtag
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re.Data = detachZeroCopyBytes(d.br, re.Data, xbs)
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} else {
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ext.ReadExt(rv, xbs)
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}
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return
|
|
}
|
|
|
|
func (d *simpleDecDriver) decodeExtV(verifyTag bool, tag byte) (xtag byte, xbs []byte) {
|
|
if !d.bdRead {
|
|
d.readNextBd()
|
|
}
|
|
switch d.bd {
|
|
case simpleVdExt, simpleVdExt + 1, simpleVdExt + 2, simpleVdExt + 3, simpleVdExt + 4:
|
|
l := d.decLen()
|
|
xtag = d.r.readn1()
|
|
if verifyTag && xtag != tag {
|
|
d.d.errorf("wrong extension tag. Got %b. Expecting: %v", xtag, tag)
|
|
return
|
|
}
|
|
xbs = d.r.readx(l)
|
|
case simpleVdByteArray, simpleVdByteArray + 1,
|
|
simpleVdByteArray + 2, simpleVdByteArray + 3, simpleVdByteArray + 4:
|
|
xbs = d.DecodeBytes(nil, true)
|
|
default:
|
|
d.d.errorf("ext - %s - expecting extensions/bytearray, got: 0x%x", msgBadDesc, d.bd)
|
|
return
|
|
}
|
|
d.bdRead = false
|
|
return
|
|
}
|
|
|
|
func (d *simpleDecDriver) DecodeNaked() {
|
|
if !d.bdRead {
|
|
d.readNextBd()
|
|
}
|
|
|
|
n := d.d.n
|
|
var decodeFurther bool
|
|
|
|
switch d.bd {
|
|
case simpleVdNil:
|
|
n.v = valueTypeNil
|
|
case simpleVdFalse:
|
|
n.v = valueTypeBool
|
|
n.b = false
|
|
case simpleVdTrue:
|
|
n.v = valueTypeBool
|
|
n.b = true
|
|
case simpleVdPosInt, simpleVdPosInt + 1, simpleVdPosInt + 2, simpleVdPosInt + 3:
|
|
if d.h.SignedInteger {
|
|
n.v = valueTypeInt
|
|
n.i = d.DecodeInt64()
|
|
} else {
|
|
n.v = valueTypeUint
|
|
n.u = d.DecodeUint64()
|
|
}
|
|
case simpleVdNegInt, simpleVdNegInt + 1, simpleVdNegInt + 2, simpleVdNegInt + 3:
|
|
n.v = valueTypeInt
|
|
n.i = d.DecodeInt64()
|
|
case simpleVdFloat32:
|
|
n.v = valueTypeFloat
|
|
n.f = d.DecodeFloat64()
|
|
case simpleVdFloat64:
|
|
n.v = valueTypeFloat
|
|
n.f = d.DecodeFloat64()
|
|
case simpleVdTime:
|
|
n.v = valueTypeTime
|
|
n.t = d.DecodeTime()
|
|
case simpleVdString, simpleVdString + 1,
|
|
simpleVdString + 2, simpleVdString + 3, simpleVdString + 4:
|
|
n.v = valueTypeString
|
|
n.s = d.DecodeString()
|
|
case simpleVdByteArray, simpleVdByteArray + 1,
|
|
simpleVdByteArray + 2, simpleVdByteArray + 3, simpleVdByteArray + 4:
|
|
n.v = valueTypeBytes
|
|
n.l = d.DecodeBytes(nil, false)
|
|
case simpleVdExt, simpleVdExt + 1, simpleVdExt + 2, simpleVdExt + 3, simpleVdExt + 4:
|
|
n.v = valueTypeExt
|
|
l := d.decLen()
|
|
n.u = uint64(d.r.readn1())
|
|
n.l = d.r.readx(l)
|
|
case simpleVdArray, simpleVdArray + 1, simpleVdArray + 2,
|
|
simpleVdArray + 3, simpleVdArray + 4:
|
|
n.v = valueTypeArray
|
|
decodeFurther = true
|
|
case simpleVdMap, simpleVdMap + 1, simpleVdMap + 2, simpleVdMap + 3, simpleVdMap + 4:
|
|
n.v = valueTypeMap
|
|
decodeFurther = true
|
|
default:
|
|
d.d.errorf("cannot infer value - %s 0x%x", msgBadDesc, d.bd)
|
|
}
|
|
|
|
if !decodeFurther {
|
|
d.bdRead = false
|
|
}
|
|
return
|
|
}
|
|
|
|
//------------------------------------
|
|
|
|
// SimpleHandle is a Handle for a very simple encoding format.
|
|
//
|
|
// simple is a simplistic codec similar to binc, but not as compact.
|
|
// - Encoding of a value is always preceded by the descriptor byte (bd)
|
|
// - True, false, nil are encoded fully in 1 byte (the descriptor)
|
|
// - Integers (intXXX, uintXXX) are encoded in 1, 2, 4 or 8 bytes (plus a descriptor byte).
|
|
// There are positive (uintXXX and intXXX >= 0) and negative (intXXX < 0) integers.
|
|
// - Floats are encoded in 4 or 8 bytes (plus a descriptor byte)
|
|
// - Length of containers (strings, bytes, array, map, extensions)
|
|
// are encoded in 0, 1, 2, 4 or 8 bytes.
|
|
// Zero-length containers have no length encoded.
|
|
// For others, the number of bytes is given by pow(2, bd%3)
|
|
// - maps are encoded as [bd] [length] [[key][value]]...
|
|
// - arrays are encoded as [bd] [length] [value]...
|
|
// - extensions are encoded as [bd] [length] [tag] [byte]...
|
|
// - strings/bytearrays are encoded as [bd] [length] [byte]...
|
|
// - time.Time are encoded as [bd] [length] [byte]...
|
|
//
|
|
// The full spec will be published soon.
|
|
type SimpleHandle struct {
|
|
BasicHandle
|
|
binaryEncodingType
|
|
noElemSeparators
|
|
// EncZeroValuesAsNil says to encode zero values for numbers, bool, string, etc as nil
|
|
EncZeroValuesAsNil bool
|
|
|
|
// _ [1]uint64 // padding
|
|
}
|
|
|
|
// Name returns the name of the handle: simple
|
|
func (h *SimpleHandle) Name() string { return "simple" }
|
|
|
|
// SetBytesExt sets an extension
|
|
func (h *SimpleHandle) SetBytesExt(rt reflect.Type, tag uint64, ext BytesExt) (err error) {
|
|
return h.SetExt(rt, tag, &extWrapper{ext, interfaceExtFailer{}})
|
|
}
|
|
|
|
func (h *SimpleHandle) hasElemSeparators() bool { return true } // as it implements Write(Map|Array)XXX
|
|
|
|
func (h *SimpleHandle) newEncDriver(e *Encoder) encDriver {
|
|
return &simpleEncDriver{e: e, w: e.w, h: h}
|
|
}
|
|
|
|
func (h *SimpleHandle) newDecDriver(d *Decoder) decDriver {
|
|
return &simpleDecDriver{d: d, h: h, r: d.r, br: d.bytes}
|
|
}
|
|
|
|
func (e *simpleEncDriver) reset() {
|
|
e.c = 0
|
|
e.w = e.e.w
|
|
}
|
|
|
|
func (d *simpleDecDriver) reset() {
|
|
d.c = 0
|
|
d.r, d.br = d.d.r, d.d.bytes
|
|
d.bd, d.bdRead = 0, false
|
|
}
|
|
|
|
var _ decDriver = (*simpleDecDriver)(nil)
|
|
var _ encDriver = (*simpleEncDriver)(nil)
|