forked from mirrors/gotosocial
acc333c40b
When GTS is running in a container runtime which has configured CPU or memory limits or under an init system that uses cgroups to impose CPU and memory limits the values the Go runtime sees for GOMAXPROCS and GOMEMLIMIT are still based on the host resources, not the cgroup. At least for the throttling middlewares which use GOMAXPROCS to configure their queue size, this can result in GTS running with values too big compared to the resources that will actuall be available to it. This introduces 2 dependencies which can pick up resource contraints from the current cgroup and tune the Go runtime accordingly. This should result in the different queues being appropriately sized and in general more predictable performance. These dependencies are a no-op on non-Linux systems or if running in a cgroup that doesn't set a limit on CPU or memory. The automatic tuning of GOMEMLIMIT can be disabled by either explicitly setting GOMEMLIMIT yourself or by setting AUTOMEMLIMIT=off. The automatic tuning of GOMAXPROCS can similarly be counteracted by setting GOMAXPROCS yourself.
2249 lines
54 KiB
Go
2249 lines
54 KiB
Go
// Go support for Protocol Buffers - Google's data interchange format
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//
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// Copyright 2016 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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import (
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"errors"
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"fmt"
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"io"
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"math"
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"reflect"
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"strconv"
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"strings"
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"sync"
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"sync/atomic"
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"unicode/utf8"
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)
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// Unmarshal is the entry point from the generated .pb.go files.
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// This function is not intended to be used by non-generated code.
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// This function is not subject to any compatibility guarantee.
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// msg contains a pointer to a protocol buffer struct.
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// b is the data to be unmarshaled into the protocol buffer.
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// a is a pointer to a place to store cached unmarshal information.
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func (a *InternalMessageInfo) Unmarshal(msg Message, b []byte) error {
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// Load the unmarshal information for this message type.
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// The atomic load ensures memory consistency.
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u := atomicLoadUnmarshalInfo(&a.unmarshal)
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if u == nil {
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// Slow path: find unmarshal info for msg, update a with it.
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u = getUnmarshalInfo(reflect.TypeOf(msg).Elem())
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atomicStoreUnmarshalInfo(&a.unmarshal, u)
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}
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// Then do the unmarshaling.
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err := u.unmarshal(toPointer(&msg), b)
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return err
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}
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type unmarshalInfo struct {
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typ reflect.Type // type of the protobuf struct
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// 0 = only typ field is initialized
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// 1 = completely initialized
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initialized int32
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lock sync.Mutex // prevents double initialization
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dense []unmarshalFieldInfo // fields indexed by tag #
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sparse map[uint64]unmarshalFieldInfo // fields indexed by tag #
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reqFields []string // names of required fields
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reqMask uint64 // 1<<len(reqFields)-1
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unrecognized field // offset of []byte to put unrecognized data (or invalidField if we should throw it away)
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extensions field // offset of extensions field (of type proto.XXX_InternalExtensions), or invalidField if it does not exist
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oldExtensions field // offset of old-form extensions field (of type map[int]Extension)
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extensionRanges []ExtensionRange // if non-nil, implies extensions field is valid
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isMessageSet bool // if true, implies extensions field is valid
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bytesExtensions field // offset of XXX_extensions with type []byte
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}
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// An unmarshaler takes a stream of bytes and a pointer to a field of a message.
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// It decodes the field, stores it at f, and returns the unused bytes.
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// w is the wire encoding.
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// b is the data after the tag and wire encoding have been read.
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type unmarshaler func(b []byte, f pointer, w int) ([]byte, error)
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type unmarshalFieldInfo struct {
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// location of the field in the proto message structure.
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field field
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// function to unmarshal the data for the field.
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unmarshal unmarshaler
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// if a required field, contains a single set bit at this field's index in the required field list.
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reqMask uint64
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name string // name of the field, for error reporting
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}
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var (
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unmarshalInfoMap = map[reflect.Type]*unmarshalInfo{}
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unmarshalInfoLock sync.Mutex
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)
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// getUnmarshalInfo returns the data structure which can be
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// subsequently used to unmarshal a message of the given type.
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// t is the type of the message (note: not pointer to message).
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func getUnmarshalInfo(t reflect.Type) *unmarshalInfo {
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// It would be correct to return a new unmarshalInfo
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// unconditionally. We would end up allocating one
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// per occurrence of that type as a message or submessage.
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// We use a cache here just to reduce memory usage.
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unmarshalInfoLock.Lock()
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defer unmarshalInfoLock.Unlock()
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u := unmarshalInfoMap[t]
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if u == nil {
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u = &unmarshalInfo{typ: t}
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// Note: we just set the type here. The rest of the fields
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// will be initialized on first use.
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unmarshalInfoMap[t] = u
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}
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return u
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}
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// unmarshal does the main work of unmarshaling a message.
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// u provides type information used to unmarshal the message.
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// m is a pointer to a protocol buffer message.
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// b is a byte stream to unmarshal into m.
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// This is top routine used when recursively unmarshaling submessages.
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func (u *unmarshalInfo) unmarshal(m pointer, b []byte) error {
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if atomic.LoadInt32(&u.initialized) == 0 {
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u.computeUnmarshalInfo()
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}
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if u.isMessageSet {
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return unmarshalMessageSet(b, m.offset(u.extensions).toExtensions())
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}
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var reqMask uint64 // bitmask of required fields we've seen.
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var errLater error
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for len(b) > 0 {
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// Read tag and wire type.
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// Special case 1 and 2 byte varints.
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var x uint64
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if b[0] < 128 {
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x = uint64(b[0])
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b = b[1:]
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} else if len(b) >= 2 && b[1] < 128 {
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x = uint64(b[0]&0x7f) + uint64(b[1])<<7
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b = b[2:]
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} else {
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var n int
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x, n = decodeVarint(b)
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if n == 0 {
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return io.ErrUnexpectedEOF
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}
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b = b[n:]
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}
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tag := x >> 3
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wire := int(x) & 7
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// Dispatch on the tag to one of the unmarshal* functions below.
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var f unmarshalFieldInfo
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if tag < uint64(len(u.dense)) {
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f = u.dense[tag]
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} else {
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f = u.sparse[tag]
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}
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if fn := f.unmarshal; fn != nil {
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var err error
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b, err = fn(b, m.offset(f.field), wire)
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if err == nil {
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reqMask |= f.reqMask
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continue
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}
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if r, ok := err.(*RequiredNotSetError); ok {
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// Remember this error, but keep parsing. We need to produce
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// a full parse even if a required field is missing.
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if errLater == nil {
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errLater = r
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}
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reqMask |= f.reqMask
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continue
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}
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if err != errInternalBadWireType {
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if err == errInvalidUTF8 {
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if errLater == nil {
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fullName := revProtoTypes[reflect.PtrTo(u.typ)] + "." + f.name
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errLater = &invalidUTF8Error{fullName}
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}
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continue
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}
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return err
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}
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// Fragments with bad wire type are treated as unknown fields.
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}
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// Unknown tag.
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if !u.unrecognized.IsValid() {
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// Don't keep unrecognized data; just skip it.
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var err error
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b, err = skipField(b, wire)
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if err != nil {
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return err
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}
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continue
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}
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// Keep unrecognized data around.
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// maybe in extensions, maybe in the unrecognized field.
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z := m.offset(u.unrecognized).toBytes()
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var emap map[int32]Extension
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var e Extension
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for _, r := range u.extensionRanges {
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if uint64(r.Start) <= tag && tag <= uint64(r.End) {
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if u.extensions.IsValid() {
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mp := m.offset(u.extensions).toExtensions()
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emap = mp.extensionsWrite()
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e = emap[int32(tag)]
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z = &e.enc
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break
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}
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if u.oldExtensions.IsValid() {
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p := m.offset(u.oldExtensions).toOldExtensions()
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emap = *p
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if emap == nil {
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emap = map[int32]Extension{}
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*p = emap
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}
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e = emap[int32(tag)]
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z = &e.enc
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break
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}
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if u.bytesExtensions.IsValid() {
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z = m.offset(u.bytesExtensions).toBytes()
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break
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}
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panic("no extensions field available")
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}
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}
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// Use wire type to skip data.
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var err error
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b0 := b
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b, err = skipField(b, wire)
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if err != nil {
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return err
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}
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*z = encodeVarint(*z, tag<<3|uint64(wire))
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*z = append(*z, b0[:len(b0)-len(b)]...)
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if emap != nil {
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emap[int32(tag)] = e
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}
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}
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if reqMask != u.reqMask && errLater == nil {
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// A required field of this message is missing.
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for _, n := range u.reqFields {
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if reqMask&1 == 0 {
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errLater = &RequiredNotSetError{n}
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}
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reqMask >>= 1
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}
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}
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return errLater
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}
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// computeUnmarshalInfo fills in u with information for use
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// in unmarshaling protocol buffers of type u.typ.
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func (u *unmarshalInfo) computeUnmarshalInfo() {
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u.lock.Lock()
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defer u.lock.Unlock()
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if u.initialized != 0 {
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return
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}
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t := u.typ
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n := t.NumField()
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// Set up the "not found" value for the unrecognized byte buffer.
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// This is the default for proto3.
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u.unrecognized = invalidField
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u.extensions = invalidField
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u.oldExtensions = invalidField
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u.bytesExtensions = invalidField
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// List of the generated type and offset for each oneof field.
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type oneofField struct {
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ityp reflect.Type // interface type of oneof field
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field field // offset in containing message
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}
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var oneofFields []oneofField
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for i := 0; i < n; i++ {
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f := t.Field(i)
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if f.Name == "XXX_unrecognized" {
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// The byte slice used to hold unrecognized input is special.
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if f.Type != reflect.TypeOf(([]byte)(nil)) {
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panic("bad type for XXX_unrecognized field: " + f.Type.Name())
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}
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u.unrecognized = toField(&f)
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continue
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}
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if f.Name == "XXX_InternalExtensions" {
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// Ditto here.
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if f.Type != reflect.TypeOf(XXX_InternalExtensions{}) {
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panic("bad type for XXX_InternalExtensions field: " + f.Type.Name())
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}
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u.extensions = toField(&f)
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if f.Tag.Get("protobuf_messageset") == "1" {
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u.isMessageSet = true
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}
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continue
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}
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if f.Name == "XXX_extensions" {
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// An older form of the extensions field.
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if f.Type == reflect.TypeOf((map[int32]Extension)(nil)) {
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u.oldExtensions = toField(&f)
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continue
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} else if f.Type == reflect.TypeOf(([]byte)(nil)) {
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u.bytesExtensions = toField(&f)
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continue
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}
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panic("bad type for XXX_extensions field: " + f.Type.Name())
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}
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if f.Name == "XXX_NoUnkeyedLiteral" || f.Name == "XXX_sizecache" {
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continue
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}
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oneof := f.Tag.Get("protobuf_oneof")
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if oneof != "" {
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oneofFields = append(oneofFields, oneofField{f.Type, toField(&f)})
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// The rest of oneof processing happens below.
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continue
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}
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tags := f.Tag.Get("protobuf")
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tagArray := strings.Split(tags, ",")
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if len(tagArray) < 2 {
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panic("protobuf tag not enough fields in " + t.Name() + "." + f.Name + ": " + tags)
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}
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tag, err := strconv.Atoi(tagArray[1])
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if err != nil {
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panic("protobuf tag field not an integer: " + tagArray[1])
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}
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name := ""
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for _, tag := range tagArray[3:] {
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if strings.HasPrefix(tag, "name=") {
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name = tag[5:]
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}
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}
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// Extract unmarshaling function from the field (its type and tags).
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unmarshal := fieldUnmarshaler(&f)
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// Required field?
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var reqMask uint64
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if tagArray[2] == "req" {
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bit := len(u.reqFields)
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u.reqFields = append(u.reqFields, name)
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reqMask = uint64(1) << uint(bit)
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// TODO: if we have more than 64 required fields, we end up
|
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// not verifying that all required fields are present.
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// Fix this, perhaps using a count of required fields?
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}
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// Store the info in the correct slot in the message.
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u.setTag(tag, toField(&f), unmarshal, reqMask, name)
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}
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// Find any types associated with oneof fields.
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// gogo: len(oneofFields) > 0 is needed for embedded oneof messages, without a marshaler and unmarshaler
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if len(oneofFields) > 0 {
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var oneofImplementers []interface{}
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switch m := reflect.Zero(reflect.PtrTo(t)).Interface().(type) {
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case oneofFuncsIface:
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_, _, _, oneofImplementers = m.XXX_OneofFuncs()
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case oneofWrappersIface:
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oneofImplementers = m.XXX_OneofWrappers()
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}
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for _, v := range oneofImplementers {
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tptr := reflect.TypeOf(v) // *Msg_X
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typ := tptr.Elem() // Msg_X
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f := typ.Field(0) // oneof implementers have one field
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baseUnmarshal := fieldUnmarshaler(&f)
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tags := strings.Split(f.Tag.Get("protobuf"), ",")
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fieldNum, err := strconv.Atoi(tags[1])
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if err != nil {
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panic("protobuf tag field not an integer: " + tags[1])
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}
|
|
var name string
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for _, tag := range tags {
|
|
if strings.HasPrefix(tag, "name=") {
|
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name = strings.TrimPrefix(tag, "name=")
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break
|
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}
|
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}
|
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|
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// Find the oneof field that this struct implements.
|
|
// Might take O(n^2) to process all of the oneofs, but who cares.
|
|
for _, of := range oneofFields {
|
|
if tptr.Implements(of.ityp) {
|
|
// We have found the corresponding interface for this struct.
|
|
// That lets us know where this struct should be stored
|
|
// when we encounter it during unmarshaling.
|
|
unmarshal := makeUnmarshalOneof(typ, of.ityp, baseUnmarshal)
|
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u.setTag(fieldNum, of.field, unmarshal, 0, name)
|
|
}
|
|
}
|
|
|
|
}
|
|
}
|
|
|
|
// Get extension ranges, if any.
|
|
fn := reflect.Zero(reflect.PtrTo(t)).MethodByName("ExtensionRangeArray")
|
|
if fn.IsValid() {
|
|
if !u.extensions.IsValid() && !u.oldExtensions.IsValid() && !u.bytesExtensions.IsValid() {
|
|
panic("a message with extensions, but no extensions field in " + t.Name())
|
|
}
|
|
u.extensionRanges = fn.Call(nil)[0].Interface().([]ExtensionRange)
|
|
}
|
|
|
|
// Explicitly disallow tag 0. This will ensure we flag an error
|
|
// when decoding a buffer of all zeros. Without this code, we
|
|
// would decode and skip an all-zero buffer of even length.
|
|
// [0 0] is [tag=0/wiretype=varint varint-encoded-0].
|
|
u.setTag(0, zeroField, func(b []byte, f pointer, w int) ([]byte, error) {
|
|
return nil, fmt.Errorf("proto: %s: illegal tag 0 (wire type %d)", t, w)
|
|
}, 0, "")
|
|
|
|
// Set mask for required field check.
|
|
u.reqMask = uint64(1)<<uint(len(u.reqFields)) - 1
|
|
|
|
atomic.StoreInt32(&u.initialized, 1)
|
|
}
|
|
|
|
// setTag stores the unmarshal information for the given tag.
|
|
// tag = tag # for field
|
|
// field/unmarshal = unmarshal info for that field.
|
|
// reqMask = if required, bitmask for field position in required field list. 0 otherwise.
|
|
// name = short name of the field.
|
|
func (u *unmarshalInfo) setTag(tag int, field field, unmarshal unmarshaler, reqMask uint64, name string) {
|
|
i := unmarshalFieldInfo{field: field, unmarshal: unmarshal, reqMask: reqMask, name: name}
|
|
n := u.typ.NumField()
|
|
if tag >= 0 && (tag < 16 || tag < 2*n) { // TODO: what are the right numbers here?
|
|
for len(u.dense) <= tag {
|
|
u.dense = append(u.dense, unmarshalFieldInfo{})
|
|
}
|
|
u.dense[tag] = i
|
|
return
|
|
}
|
|
if u.sparse == nil {
|
|
u.sparse = map[uint64]unmarshalFieldInfo{}
|
|
}
|
|
u.sparse[uint64(tag)] = i
|
|
}
|
|
|
|
// fieldUnmarshaler returns an unmarshaler for the given field.
|
|
func fieldUnmarshaler(f *reflect.StructField) unmarshaler {
|
|
if f.Type.Kind() == reflect.Map {
|
|
return makeUnmarshalMap(f)
|
|
}
|
|
return typeUnmarshaler(f.Type, f.Tag.Get("protobuf"))
|
|
}
|
|
|
|
// typeUnmarshaler returns an unmarshaler for the given field type / field tag pair.
|
|
func typeUnmarshaler(t reflect.Type, tags string) unmarshaler {
|
|
tagArray := strings.Split(tags, ",")
|
|
encoding := tagArray[0]
|
|
name := "unknown"
|
|
ctype := false
|
|
isTime := false
|
|
isDuration := false
|
|
isWktPointer := false
|
|
proto3 := false
|
|
validateUTF8 := true
|
|
for _, tag := range tagArray[3:] {
|
|
if strings.HasPrefix(tag, "name=") {
|
|
name = tag[5:]
|
|
}
|
|
if tag == "proto3" {
|
|
proto3 = true
|
|
}
|
|
if strings.HasPrefix(tag, "customtype=") {
|
|
ctype = true
|
|
}
|
|
if tag == "stdtime" {
|
|
isTime = true
|
|
}
|
|
if tag == "stdduration" {
|
|
isDuration = true
|
|
}
|
|
if tag == "wktptr" {
|
|
isWktPointer = true
|
|
}
|
|
}
|
|
validateUTF8 = validateUTF8 && proto3
|
|
|
|
// Figure out packaging (pointer, slice, or both)
|
|
slice := false
|
|
pointer := false
|
|
if t.Kind() == reflect.Slice && t.Elem().Kind() != reflect.Uint8 {
|
|
slice = true
|
|
t = t.Elem()
|
|
}
|
|
if t.Kind() == reflect.Ptr {
|
|
pointer = true
|
|
t = t.Elem()
|
|
}
|
|
|
|
if ctype {
|
|
if reflect.PtrTo(t).Implements(customType) {
|
|
if slice {
|
|
return makeUnmarshalCustomSlice(getUnmarshalInfo(t), name)
|
|
}
|
|
if pointer {
|
|
return makeUnmarshalCustomPtr(getUnmarshalInfo(t), name)
|
|
}
|
|
return makeUnmarshalCustom(getUnmarshalInfo(t), name)
|
|
} else {
|
|
panic(fmt.Sprintf("custom type: type: %v, does not implement the proto.custom interface", t))
|
|
}
|
|
}
|
|
|
|
if isTime {
|
|
if pointer {
|
|
if slice {
|
|
return makeUnmarshalTimePtrSlice(getUnmarshalInfo(t), name)
|
|
}
|
|
return makeUnmarshalTimePtr(getUnmarshalInfo(t), name)
|
|
}
|
|
if slice {
|
|
return makeUnmarshalTimeSlice(getUnmarshalInfo(t), name)
|
|
}
|
|
return makeUnmarshalTime(getUnmarshalInfo(t), name)
|
|
}
|
|
|
|
if isDuration {
|
|
if pointer {
|
|
if slice {
|
|
return makeUnmarshalDurationPtrSlice(getUnmarshalInfo(t), name)
|
|
}
|
|
return makeUnmarshalDurationPtr(getUnmarshalInfo(t), name)
|
|
}
|
|
if slice {
|
|
return makeUnmarshalDurationSlice(getUnmarshalInfo(t), name)
|
|
}
|
|
return makeUnmarshalDuration(getUnmarshalInfo(t), name)
|
|
}
|
|
|
|
if isWktPointer {
|
|
switch t.Kind() {
|
|
case reflect.Float64:
|
|
if pointer {
|
|
if slice {
|
|
return makeStdDoubleValuePtrSliceUnmarshaler(getUnmarshalInfo(t), name)
|
|
}
|
|
return makeStdDoubleValuePtrUnmarshaler(getUnmarshalInfo(t), name)
|
|
}
|
|
if slice {
|
|
return makeStdDoubleValueSliceUnmarshaler(getUnmarshalInfo(t), name)
|
|
}
|
|
return makeStdDoubleValueUnmarshaler(getUnmarshalInfo(t), name)
|
|
case reflect.Float32:
|
|
if pointer {
|
|
if slice {
|
|
return makeStdFloatValuePtrSliceUnmarshaler(getUnmarshalInfo(t), name)
|
|
}
|
|
return makeStdFloatValuePtrUnmarshaler(getUnmarshalInfo(t), name)
|
|
}
|
|
if slice {
|
|
return makeStdFloatValueSliceUnmarshaler(getUnmarshalInfo(t), name)
|
|
}
|
|
return makeStdFloatValueUnmarshaler(getUnmarshalInfo(t), name)
|
|
case reflect.Int64:
|
|
if pointer {
|
|
if slice {
|
|
return makeStdInt64ValuePtrSliceUnmarshaler(getUnmarshalInfo(t), name)
|
|
}
|
|
return makeStdInt64ValuePtrUnmarshaler(getUnmarshalInfo(t), name)
|
|
}
|
|
if slice {
|
|
return makeStdInt64ValueSliceUnmarshaler(getUnmarshalInfo(t), name)
|
|
}
|
|
return makeStdInt64ValueUnmarshaler(getUnmarshalInfo(t), name)
|
|
case reflect.Uint64:
|
|
if pointer {
|
|
if slice {
|
|
return makeStdUInt64ValuePtrSliceUnmarshaler(getUnmarshalInfo(t), name)
|
|
}
|
|
return makeStdUInt64ValuePtrUnmarshaler(getUnmarshalInfo(t), name)
|
|
}
|
|
if slice {
|
|
return makeStdUInt64ValueSliceUnmarshaler(getUnmarshalInfo(t), name)
|
|
}
|
|
return makeStdUInt64ValueUnmarshaler(getUnmarshalInfo(t), name)
|
|
case reflect.Int32:
|
|
if pointer {
|
|
if slice {
|
|
return makeStdInt32ValuePtrSliceUnmarshaler(getUnmarshalInfo(t), name)
|
|
}
|
|
return makeStdInt32ValuePtrUnmarshaler(getUnmarshalInfo(t), name)
|
|
}
|
|
if slice {
|
|
return makeStdInt32ValueSliceUnmarshaler(getUnmarshalInfo(t), name)
|
|
}
|
|
return makeStdInt32ValueUnmarshaler(getUnmarshalInfo(t), name)
|
|
case reflect.Uint32:
|
|
if pointer {
|
|
if slice {
|
|
return makeStdUInt32ValuePtrSliceUnmarshaler(getUnmarshalInfo(t), name)
|
|
}
|
|
return makeStdUInt32ValuePtrUnmarshaler(getUnmarshalInfo(t), name)
|
|
}
|
|
if slice {
|
|
return makeStdUInt32ValueSliceUnmarshaler(getUnmarshalInfo(t), name)
|
|
}
|
|
return makeStdUInt32ValueUnmarshaler(getUnmarshalInfo(t), name)
|
|
case reflect.Bool:
|
|
if pointer {
|
|
if slice {
|
|
return makeStdBoolValuePtrSliceUnmarshaler(getUnmarshalInfo(t), name)
|
|
}
|
|
return makeStdBoolValuePtrUnmarshaler(getUnmarshalInfo(t), name)
|
|
}
|
|
if slice {
|
|
return makeStdBoolValueSliceUnmarshaler(getUnmarshalInfo(t), name)
|
|
}
|
|
return makeStdBoolValueUnmarshaler(getUnmarshalInfo(t), name)
|
|
case reflect.String:
|
|
if pointer {
|
|
if slice {
|
|
return makeStdStringValuePtrSliceUnmarshaler(getUnmarshalInfo(t), name)
|
|
}
|
|
return makeStdStringValuePtrUnmarshaler(getUnmarshalInfo(t), name)
|
|
}
|
|
if slice {
|
|
return makeStdStringValueSliceUnmarshaler(getUnmarshalInfo(t), name)
|
|
}
|
|
return makeStdStringValueUnmarshaler(getUnmarshalInfo(t), name)
|
|
case uint8SliceType:
|
|
if pointer {
|
|
if slice {
|
|
return makeStdBytesValuePtrSliceUnmarshaler(getUnmarshalInfo(t), name)
|
|
}
|
|
return makeStdBytesValuePtrUnmarshaler(getUnmarshalInfo(t), name)
|
|
}
|
|
if slice {
|
|
return makeStdBytesValueSliceUnmarshaler(getUnmarshalInfo(t), name)
|
|
}
|
|
return makeStdBytesValueUnmarshaler(getUnmarshalInfo(t), name)
|
|
default:
|
|
panic(fmt.Sprintf("unknown wktpointer type %#v", t))
|
|
}
|
|
}
|
|
|
|
// We'll never have both pointer and slice for basic types.
|
|
if pointer && slice && t.Kind() != reflect.Struct {
|
|
panic("both pointer and slice for basic type in " + t.Name())
|
|
}
|
|
|
|
switch t.Kind() {
|
|
case reflect.Bool:
|
|
if pointer {
|
|
return unmarshalBoolPtr
|
|
}
|
|
if slice {
|
|
return unmarshalBoolSlice
|
|
}
|
|
return unmarshalBoolValue
|
|
case reflect.Int32:
|
|
switch encoding {
|
|
case "fixed32":
|
|
if pointer {
|
|
return unmarshalFixedS32Ptr
|
|
}
|
|
if slice {
|
|
return unmarshalFixedS32Slice
|
|
}
|
|
return unmarshalFixedS32Value
|
|
case "varint":
|
|
// this could be int32 or enum
|
|
if pointer {
|
|
return unmarshalInt32Ptr
|
|
}
|
|
if slice {
|
|
return unmarshalInt32Slice
|
|
}
|
|
return unmarshalInt32Value
|
|
case "zigzag32":
|
|
if pointer {
|
|
return unmarshalSint32Ptr
|
|
}
|
|
if slice {
|
|
return unmarshalSint32Slice
|
|
}
|
|
return unmarshalSint32Value
|
|
}
|
|
case reflect.Int64:
|
|
switch encoding {
|
|
case "fixed64":
|
|
if pointer {
|
|
return unmarshalFixedS64Ptr
|
|
}
|
|
if slice {
|
|
return unmarshalFixedS64Slice
|
|
}
|
|
return unmarshalFixedS64Value
|
|
case "varint":
|
|
if pointer {
|
|
return unmarshalInt64Ptr
|
|
}
|
|
if slice {
|
|
return unmarshalInt64Slice
|
|
}
|
|
return unmarshalInt64Value
|
|
case "zigzag64":
|
|
if pointer {
|
|
return unmarshalSint64Ptr
|
|
}
|
|
if slice {
|
|
return unmarshalSint64Slice
|
|
}
|
|
return unmarshalSint64Value
|
|
}
|
|
case reflect.Uint32:
|
|
switch encoding {
|
|
case "fixed32":
|
|
if pointer {
|
|
return unmarshalFixed32Ptr
|
|
}
|
|
if slice {
|
|
return unmarshalFixed32Slice
|
|
}
|
|
return unmarshalFixed32Value
|
|
case "varint":
|
|
if pointer {
|
|
return unmarshalUint32Ptr
|
|
}
|
|
if slice {
|
|
return unmarshalUint32Slice
|
|
}
|
|
return unmarshalUint32Value
|
|
}
|
|
case reflect.Uint64:
|
|
switch encoding {
|
|
case "fixed64":
|
|
if pointer {
|
|
return unmarshalFixed64Ptr
|
|
}
|
|
if slice {
|
|
return unmarshalFixed64Slice
|
|
}
|
|
return unmarshalFixed64Value
|
|
case "varint":
|
|
if pointer {
|
|
return unmarshalUint64Ptr
|
|
}
|
|
if slice {
|
|
return unmarshalUint64Slice
|
|
}
|
|
return unmarshalUint64Value
|
|
}
|
|
case reflect.Float32:
|
|
if pointer {
|
|
return unmarshalFloat32Ptr
|
|
}
|
|
if slice {
|
|
return unmarshalFloat32Slice
|
|
}
|
|
return unmarshalFloat32Value
|
|
case reflect.Float64:
|
|
if pointer {
|
|
return unmarshalFloat64Ptr
|
|
}
|
|
if slice {
|
|
return unmarshalFloat64Slice
|
|
}
|
|
return unmarshalFloat64Value
|
|
case reflect.Map:
|
|
panic("map type in typeUnmarshaler in " + t.Name())
|
|
case reflect.Slice:
|
|
if pointer {
|
|
panic("bad pointer in slice case in " + t.Name())
|
|
}
|
|
if slice {
|
|
return unmarshalBytesSlice
|
|
}
|
|
return unmarshalBytesValue
|
|
case reflect.String:
|
|
if validateUTF8 {
|
|
if pointer {
|
|
return unmarshalUTF8StringPtr
|
|
}
|
|
if slice {
|
|
return unmarshalUTF8StringSlice
|
|
}
|
|
return unmarshalUTF8StringValue
|
|
}
|
|
if pointer {
|
|
return unmarshalStringPtr
|
|
}
|
|
if slice {
|
|
return unmarshalStringSlice
|
|
}
|
|
return unmarshalStringValue
|
|
case reflect.Struct:
|
|
// message or group field
|
|
if !pointer {
|
|
switch encoding {
|
|
case "bytes":
|
|
if slice {
|
|
return makeUnmarshalMessageSlice(getUnmarshalInfo(t), name)
|
|
}
|
|
return makeUnmarshalMessage(getUnmarshalInfo(t), name)
|
|
}
|
|
}
|
|
switch encoding {
|
|
case "bytes":
|
|
if slice {
|
|
return makeUnmarshalMessageSlicePtr(getUnmarshalInfo(t), name)
|
|
}
|
|
return makeUnmarshalMessagePtr(getUnmarshalInfo(t), name)
|
|
case "group":
|
|
if slice {
|
|
return makeUnmarshalGroupSlicePtr(getUnmarshalInfo(t), name)
|
|
}
|
|
return makeUnmarshalGroupPtr(getUnmarshalInfo(t), name)
|
|
}
|
|
}
|
|
panic(fmt.Sprintf("unmarshaler not found type:%s encoding:%s", t, encoding))
|
|
}
|
|
|
|
// Below are all the unmarshalers for individual fields of various types.
|
|
|
|
func unmarshalInt64Value(b []byte, f pointer, w int) ([]byte, error) {
|
|
if w != WireVarint {
|
|
return b, errInternalBadWireType
|
|
}
|
|
x, n := decodeVarint(b)
|
|
if n == 0 {
|
|
return nil, io.ErrUnexpectedEOF
|
|
}
|
|
b = b[n:]
|
|
v := int64(x)
|
|
*f.toInt64() = v
|
|
return b, nil
|
|
}
|
|
|
|
func unmarshalInt64Ptr(b []byte, f pointer, w int) ([]byte, error) {
|
|
if w != WireVarint {
|
|
return b, errInternalBadWireType
|
|
}
|
|
x, n := decodeVarint(b)
|
|
if n == 0 {
|
|
return nil, io.ErrUnexpectedEOF
|
|
}
|
|
b = b[n:]
|
|
v := int64(x)
|
|
*f.toInt64Ptr() = &v
|
|
return b, nil
|
|
}
|
|
|
|
func unmarshalInt64Slice(b []byte, f pointer, w int) ([]byte, error) {
|
|
if w == WireBytes { // packed
|
|
x, n := decodeVarint(b)
|
|
if n == 0 {
|
|
return nil, io.ErrUnexpectedEOF
|
|
}
|
|
b = b[n:]
|
|
if x > uint64(len(b)) {
|
|
return nil, io.ErrUnexpectedEOF
|
|
}
|
|
res := b[x:]
|
|
b = b[:x]
|
|
for len(b) > 0 {
|
|
x, n = decodeVarint(b)
|
|
if n == 0 {
|
|
return nil, io.ErrUnexpectedEOF
|
|
}
|
|
b = b[n:]
|
|
v := int64(x)
|
|
s := f.toInt64Slice()
|
|
*s = append(*s, v)
|
|
}
|
|
return res, nil
|
|
}
|
|
if w != WireVarint {
|
|
return b, errInternalBadWireType
|
|
}
|
|
x, n := decodeVarint(b)
|
|
if n == 0 {
|
|
return nil, io.ErrUnexpectedEOF
|
|
}
|
|
b = b[n:]
|
|
v := int64(x)
|
|
s := f.toInt64Slice()
|
|
*s = append(*s, v)
|
|
return b, nil
|
|
}
|
|
|
|
func unmarshalSint64Value(b []byte, f pointer, w int) ([]byte, error) {
|
|
if w != WireVarint {
|
|
return b, errInternalBadWireType
|
|
}
|
|
x, n := decodeVarint(b)
|
|
if n == 0 {
|
|
return nil, io.ErrUnexpectedEOF
|
|
}
|
|
b = b[n:]
|
|
v := int64(x>>1) ^ int64(x)<<63>>63
|
|
*f.toInt64() = v
|
|
return b, nil
|
|
}
|
|
|
|
func unmarshalSint64Ptr(b []byte, f pointer, w int) ([]byte, error) {
|
|
if w != WireVarint {
|
|
return b, errInternalBadWireType
|
|
}
|
|
x, n := decodeVarint(b)
|
|
if n == 0 {
|
|
return nil, io.ErrUnexpectedEOF
|
|
}
|
|
b = b[n:]
|
|
v := int64(x>>1) ^ int64(x)<<63>>63
|
|
*f.toInt64Ptr() = &v
|
|
return b, nil
|
|
}
|
|
|
|
func unmarshalSint64Slice(b []byte, f pointer, w int) ([]byte, error) {
|
|
if w == WireBytes { // packed
|
|
x, n := decodeVarint(b)
|
|
if n == 0 {
|
|
return nil, io.ErrUnexpectedEOF
|
|
}
|
|
b = b[n:]
|
|
if x > uint64(len(b)) {
|
|
return nil, io.ErrUnexpectedEOF
|
|
}
|
|
res := b[x:]
|
|
b = b[:x]
|
|
for len(b) > 0 {
|
|
x, n = decodeVarint(b)
|
|
if n == 0 {
|
|
return nil, io.ErrUnexpectedEOF
|
|
}
|
|
b = b[n:]
|
|
v := int64(x>>1) ^ int64(x)<<63>>63
|
|
s := f.toInt64Slice()
|
|
*s = append(*s, v)
|
|
}
|
|
return res, nil
|
|
}
|
|
if w != WireVarint {
|
|
return b, errInternalBadWireType
|
|
}
|
|
x, n := decodeVarint(b)
|
|
if n == 0 {
|
|
return nil, io.ErrUnexpectedEOF
|
|
}
|
|
b = b[n:]
|
|
v := int64(x>>1) ^ int64(x)<<63>>63
|
|
s := f.toInt64Slice()
|
|
*s = append(*s, v)
|
|
return b, nil
|
|
}
|
|
|
|
func unmarshalUint64Value(b []byte, f pointer, w int) ([]byte, error) {
|
|
if w != WireVarint {
|
|
return b, errInternalBadWireType
|
|
}
|
|
x, n := decodeVarint(b)
|
|
if n == 0 {
|
|
return nil, io.ErrUnexpectedEOF
|
|
}
|
|
b = b[n:]
|
|
v := uint64(x)
|
|
*f.toUint64() = v
|
|
return b, nil
|
|
}
|
|
|
|
func unmarshalUint64Ptr(b []byte, f pointer, w int) ([]byte, error) {
|
|
if w != WireVarint {
|
|
return b, errInternalBadWireType
|
|
}
|
|
x, n := decodeVarint(b)
|
|
if n == 0 {
|
|
return nil, io.ErrUnexpectedEOF
|
|
}
|
|
b = b[n:]
|
|
v := uint64(x)
|
|
*f.toUint64Ptr() = &v
|
|
return b, nil
|
|
}
|
|
|
|
func unmarshalUint64Slice(b []byte, f pointer, w int) ([]byte, error) {
|
|
if w == WireBytes { // packed
|
|
x, n := decodeVarint(b)
|
|
if n == 0 {
|
|
return nil, io.ErrUnexpectedEOF
|
|
}
|
|
b = b[n:]
|
|
if x > uint64(len(b)) {
|
|
return nil, io.ErrUnexpectedEOF
|
|
}
|
|
res := b[x:]
|
|
b = b[:x]
|
|
for len(b) > 0 {
|
|
x, n = decodeVarint(b)
|
|
if n == 0 {
|
|
return nil, io.ErrUnexpectedEOF
|
|
}
|
|
b = b[n:]
|
|
v := uint64(x)
|
|
s := f.toUint64Slice()
|
|
*s = append(*s, v)
|
|
}
|
|
return res, nil
|
|
}
|
|
if w != WireVarint {
|
|
return b, errInternalBadWireType
|
|
}
|
|
x, n := decodeVarint(b)
|
|
if n == 0 {
|
|
return nil, io.ErrUnexpectedEOF
|
|
}
|
|
b = b[n:]
|
|
v := uint64(x)
|
|
s := f.toUint64Slice()
|
|
*s = append(*s, v)
|
|
return b, nil
|
|
}
|
|
|
|
func unmarshalInt32Value(b []byte, f pointer, w int) ([]byte, error) {
|
|
if w != WireVarint {
|
|
return b, errInternalBadWireType
|
|
}
|
|
x, n := decodeVarint(b)
|
|
if n == 0 {
|
|
return nil, io.ErrUnexpectedEOF
|
|
}
|
|
b = b[n:]
|
|
v := int32(x)
|
|
*f.toInt32() = v
|
|
return b, nil
|
|
}
|
|
|
|
func unmarshalInt32Ptr(b []byte, f pointer, w int) ([]byte, error) {
|
|
if w != WireVarint {
|
|
return b, errInternalBadWireType
|
|
}
|
|
x, n := decodeVarint(b)
|
|
if n == 0 {
|
|
return nil, io.ErrUnexpectedEOF
|
|
}
|
|
b = b[n:]
|
|
v := int32(x)
|
|
f.setInt32Ptr(v)
|
|
return b, nil
|
|
}
|
|
|
|
func unmarshalInt32Slice(b []byte, f pointer, w int) ([]byte, error) {
|
|
if w == WireBytes { // packed
|
|
x, n := decodeVarint(b)
|
|
if n == 0 {
|
|
return nil, io.ErrUnexpectedEOF
|
|
}
|
|
b = b[n:]
|
|
if x > uint64(len(b)) {
|
|
return nil, io.ErrUnexpectedEOF
|
|
}
|
|
res := b[x:]
|
|
b = b[:x]
|
|
for len(b) > 0 {
|
|
x, n = decodeVarint(b)
|
|
if n == 0 {
|
|
return nil, io.ErrUnexpectedEOF
|
|
}
|
|
b = b[n:]
|
|
v := int32(x)
|
|
f.appendInt32Slice(v)
|
|
}
|
|
return res, nil
|
|
}
|
|
if w != WireVarint {
|
|
return b, errInternalBadWireType
|
|
}
|
|
x, n := decodeVarint(b)
|
|
if n == 0 {
|
|
return nil, io.ErrUnexpectedEOF
|
|
}
|
|
b = b[n:]
|
|
v := int32(x)
|
|
f.appendInt32Slice(v)
|
|
return b, nil
|
|
}
|
|
|
|
func unmarshalSint32Value(b []byte, f pointer, w int) ([]byte, error) {
|
|
if w != WireVarint {
|
|
return b, errInternalBadWireType
|
|
}
|
|
x, n := decodeVarint(b)
|
|
if n == 0 {
|
|
return nil, io.ErrUnexpectedEOF
|
|
}
|
|
b = b[n:]
|
|
v := int32(x>>1) ^ int32(x)<<31>>31
|
|
*f.toInt32() = v
|
|
return b, nil
|
|
}
|
|
|
|
func unmarshalSint32Ptr(b []byte, f pointer, w int) ([]byte, error) {
|
|
if w != WireVarint {
|
|
return b, errInternalBadWireType
|
|
}
|
|
x, n := decodeVarint(b)
|
|
if n == 0 {
|
|
return nil, io.ErrUnexpectedEOF
|
|
}
|
|
b = b[n:]
|
|
v := int32(x>>1) ^ int32(x)<<31>>31
|
|
f.setInt32Ptr(v)
|
|
return b, nil
|
|
}
|
|
|
|
func unmarshalSint32Slice(b []byte, f pointer, w int) ([]byte, error) {
|
|
if w == WireBytes { // packed
|
|
x, n := decodeVarint(b)
|
|
if n == 0 {
|
|
return nil, io.ErrUnexpectedEOF
|
|
}
|
|
b = b[n:]
|
|
if x > uint64(len(b)) {
|
|
return nil, io.ErrUnexpectedEOF
|
|
}
|
|
res := b[x:]
|
|
b = b[:x]
|
|
for len(b) > 0 {
|
|
x, n = decodeVarint(b)
|
|
if n == 0 {
|
|
return nil, io.ErrUnexpectedEOF
|
|
}
|
|
b = b[n:]
|
|
v := int32(x>>1) ^ int32(x)<<31>>31
|
|
f.appendInt32Slice(v)
|
|
}
|
|
return res, nil
|
|
}
|
|
if w != WireVarint {
|
|
return b, errInternalBadWireType
|
|
}
|
|
x, n := decodeVarint(b)
|
|
if n == 0 {
|
|
return nil, io.ErrUnexpectedEOF
|
|
}
|
|
b = b[n:]
|
|
v := int32(x>>1) ^ int32(x)<<31>>31
|
|
f.appendInt32Slice(v)
|
|
return b, nil
|
|
}
|
|
|
|
func unmarshalUint32Value(b []byte, f pointer, w int) ([]byte, error) {
|
|
if w != WireVarint {
|
|
return b, errInternalBadWireType
|
|
}
|
|
x, n := decodeVarint(b)
|
|
if n == 0 {
|
|
return nil, io.ErrUnexpectedEOF
|
|
}
|
|
b = b[n:]
|
|
v := uint32(x)
|
|
*f.toUint32() = v
|
|
return b, nil
|
|
}
|
|
|
|
func unmarshalUint32Ptr(b []byte, f pointer, w int) ([]byte, error) {
|
|
if w != WireVarint {
|
|
return b, errInternalBadWireType
|
|
}
|
|
x, n := decodeVarint(b)
|
|
if n == 0 {
|
|
return nil, io.ErrUnexpectedEOF
|
|
}
|
|
b = b[n:]
|
|
v := uint32(x)
|
|
*f.toUint32Ptr() = &v
|
|
return b, nil
|
|
}
|
|
|
|
func unmarshalUint32Slice(b []byte, f pointer, w int) ([]byte, error) {
|
|
if w == WireBytes { // packed
|
|
x, n := decodeVarint(b)
|
|
if n == 0 {
|
|
return nil, io.ErrUnexpectedEOF
|
|
}
|
|
b = b[n:]
|
|
if x > uint64(len(b)) {
|
|
return nil, io.ErrUnexpectedEOF
|
|
}
|
|
res := b[x:]
|
|
b = b[:x]
|
|
for len(b) > 0 {
|
|
x, n = decodeVarint(b)
|
|
if n == 0 {
|
|
return nil, io.ErrUnexpectedEOF
|
|
}
|
|
b = b[n:]
|
|
v := uint32(x)
|
|
s := f.toUint32Slice()
|
|
*s = append(*s, v)
|
|
}
|
|
return res, nil
|
|
}
|
|
if w != WireVarint {
|
|
return b, errInternalBadWireType
|
|
}
|
|
x, n := decodeVarint(b)
|
|
if n == 0 {
|
|
return nil, io.ErrUnexpectedEOF
|
|
}
|
|
b = b[n:]
|
|
v := uint32(x)
|
|
s := f.toUint32Slice()
|
|
*s = append(*s, v)
|
|
return b, nil
|
|
}
|
|
|
|
func unmarshalFixed64Value(b []byte, f pointer, w int) ([]byte, error) {
|
|
if w != WireFixed64 {
|
|
return b, errInternalBadWireType
|
|
}
|
|
if len(b) < 8 {
|
|
return nil, io.ErrUnexpectedEOF
|
|
}
|
|
v := uint64(b[0]) | uint64(b[1])<<8 | uint64(b[2])<<16 | uint64(b[3])<<24 | uint64(b[4])<<32 | uint64(b[5])<<40 | uint64(b[6])<<48 | uint64(b[7])<<56
|
|
*f.toUint64() = v
|
|
return b[8:], nil
|
|
}
|
|
|
|
func unmarshalFixed64Ptr(b []byte, f pointer, w int) ([]byte, error) {
|
|
if w != WireFixed64 {
|
|
return b, errInternalBadWireType
|
|
}
|
|
if len(b) < 8 {
|
|
return nil, io.ErrUnexpectedEOF
|
|
}
|
|
v := uint64(b[0]) | uint64(b[1])<<8 | uint64(b[2])<<16 | uint64(b[3])<<24 | uint64(b[4])<<32 | uint64(b[5])<<40 | uint64(b[6])<<48 | uint64(b[7])<<56
|
|
*f.toUint64Ptr() = &v
|
|
return b[8:], nil
|
|
}
|
|
|
|
func unmarshalFixed64Slice(b []byte, f pointer, w int) ([]byte, error) {
|
|
if w == WireBytes { // packed
|
|
x, n := decodeVarint(b)
|
|
if n == 0 {
|
|
return nil, io.ErrUnexpectedEOF
|
|
}
|
|
b = b[n:]
|
|
if x > uint64(len(b)) {
|
|
return nil, io.ErrUnexpectedEOF
|
|
}
|
|
res := b[x:]
|
|
b = b[:x]
|
|
for len(b) > 0 {
|
|
if len(b) < 8 {
|
|
return nil, io.ErrUnexpectedEOF
|
|
}
|
|
v := uint64(b[0]) | uint64(b[1])<<8 | uint64(b[2])<<16 | uint64(b[3])<<24 | uint64(b[4])<<32 | uint64(b[5])<<40 | uint64(b[6])<<48 | uint64(b[7])<<56
|
|
s := f.toUint64Slice()
|
|
*s = append(*s, v)
|
|
b = b[8:]
|
|
}
|
|
return res, nil
|
|
}
|
|
if w != WireFixed64 {
|
|
return b, errInternalBadWireType
|
|
}
|
|
if len(b) < 8 {
|
|
return nil, io.ErrUnexpectedEOF
|
|
}
|
|
v := uint64(b[0]) | uint64(b[1])<<8 | uint64(b[2])<<16 | uint64(b[3])<<24 | uint64(b[4])<<32 | uint64(b[5])<<40 | uint64(b[6])<<48 | uint64(b[7])<<56
|
|
s := f.toUint64Slice()
|
|
*s = append(*s, v)
|
|
return b[8:], nil
|
|
}
|
|
|
|
func unmarshalFixedS64Value(b []byte, f pointer, w int) ([]byte, error) {
|
|
if w != WireFixed64 {
|
|
return b, errInternalBadWireType
|
|
}
|
|
if len(b) < 8 {
|
|
return nil, io.ErrUnexpectedEOF
|
|
}
|
|
v := int64(b[0]) | int64(b[1])<<8 | int64(b[2])<<16 | int64(b[3])<<24 | int64(b[4])<<32 | int64(b[5])<<40 | int64(b[6])<<48 | int64(b[7])<<56
|
|
*f.toInt64() = v
|
|
return b[8:], nil
|
|
}
|
|
|
|
func unmarshalFixedS64Ptr(b []byte, f pointer, w int) ([]byte, error) {
|
|
if w != WireFixed64 {
|
|
return b, errInternalBadWireType
|
|
}
|
|
if len(b) < 8 {
|
|
return nil, io.ErrUnexpectedEOF
|
|
}
|
|
v := int64(b[0]) | int64(b[1])<<8 | int64(b[2])<<16 | int64(b[3])<<24 | int64(b[4])<<32 | int64(b[5])<<40 | int64(b[6])<<48 | int64(b[7])<<56
|
|
*f.toInt64Ptr() = &v
|
|
return b[8:], nil
|
|
}
|
|
|
|
func unmarshalFixedS64Slice(b []byte, f pointer, w int) ([]byte, error) {
|
|
if w == WireBytes { // packed
|
|
x, n := decodeVarint(b)
|
|
if n == 0 {
|
|
return nil, io.ErrUnexpectedEOF
|
|
}
|
|
b = b[n:]
|
|
if x > uint64(len(b)) {
|
|
return nil, io.ErrUnexpectedEOF
|
|
}
|
|
res := b[x:]
|
|
b = b[:x]
|
|
for len(b) > 0 {
|
|
if len(b) < 8 {
|
|
return nil, io.ErrUnexpectedEOF
|
|
}
|
|
v := int64(b[0]) | int64(b[1])<<8 | int64(b[2])<<16 | int64(b[3])<<24 | int64(b[4])<<32 | int64(b[5])<<40 | int64(b[6])<<48 | int64(b[7])<<56
|
|
s := f.toInt64Slice()
|
|
*s = append(*s, v)
|
|
b = b[8:]
|
|
}
|
|
return res, nil
|
|
}
|
|
if w != WireFixed64 {
|
|
return b, errInternalBadWireType
|
|
}
|
|
if len(b) < 8 {
|
|
return nil, io.ErrUnexpectedEOF
|
|
}
|
|
v := int64(b[0]) | int64(b[1])<<8 | int64(b[2])<<16 | int64(b[3])<<24 | int64(b[4])<<32 | int64(b[5])<<40 | int64(b[6])<<48 | int64(b[7])<<56
|
|
s := f.toInt64Slice()
|
|
*s = append(*s, v)
|
|
return b[8:], nil
|
|
}
|
|
|
|
func unmarshalFixed32Value(b []byte, f pointer, w int) ([]byte, error) {
|
|
if w != WireFixed32 {
|
|
return b, errInternalBadWireType
|
|
}
|
|
if len(b) < 4 {
|
|
return nil, io.ErrUnexpectedEOF
|
|
}
|
|
v := uint32(b[0]) | uint32(b[1])<<8 | uint32(b[2])<<16 | uint32(b[3])<<24
|
|
*f.toUint32() = v
|
|
return b[4:], nil
|
|
}
|
|
|
|
func unmarshalFixed32Ptr(b []byte, f pointer, w int) ([]byte, error) {
|
|
if w != WireFixed32 {
|
|
return b, errInternalBadWireType
|
|
}
|
|
if len(b) < 4 {
|
|
return nil, io.ErrUnexpectedEOF
|
|
}
|
|
v := uint32(b[0]) | uint32(b[1])<<8 | uint32(b[2])<<16 | uint32(b[3])<<24
|
|
*f.toUint32Ptr() = &v
|
|
return b[4:], nil
|
|
}
|
|
|
|
func unmarshalFixed32Slice(b []byte, f pointer, w int) ([]byte, error) {
|
|
if w == WireBytes { // packed
|
|
x, n := decodeVarint(b)
|
|
if n == 0 {
|
|
return nil, io.ErrUnexpectedEOF
|
|
}
|
|
b = b[n:]
|
|
if x > uint64(len(b)) {
|
|
return nil, io.ErrUnexpectedEOF
|
|
}
|
|
res := b[x:]
|
|
b = b[:x]
|
|
for len(b) > 0 {
|
|
if len(b) < 4 {
|
|
return nil, io.ErrUnexpectedEOF
|
|
}
|
|
v := uint32(b[0]) | uint32(b[1])<<8 | uint32(b[2])<<16 | uint32(b[3])<<24
|
|
s := f.toUint32Slice()
|
|
*s = append(*s, v)
|
|
b = b[4:]
|
|
}
|
|
return res, nil
|
|
}
|
|
if w != WireFixed32 {
|
|
return b, errInternalBadWireType
|
|
}
|
|
if len(b) < 4 {
|
|
return nil, io.ErrUnexpectedEOF
|
|
}
|
|
v := uint32(b[0]) | uint32(b[1])<<8 | uint32(b[2])<<16 | uint32(b[3])<<24
|
|
s := f.toUint32Slice()
|
|
*s = append(*s, v)
|
|
return b[4:], nil
|
|
}
|
|
|
|
func unmarshalFixedS32Value(b []byte, f pointer, w int) ([]byte, error) {
|
|
if w != WireFixed32 {
|
|
return b, errInternalBadWireType
|
|
}
|
|
if len(b) < 4 {
|
|
return nil, io.ErrUnexpectedEOF
|
|
}
|
|
v := int32(b[0]) | int32(b[1])<<8 | int32(b[2])<<16 | int32(b[3])<<24
|
|
*f.toInt32() = v
|
|
return b[4:], nil
|
|
}
|
|
|
|
func unmarshalFixedS32Ptr(b []byte, f pointer, w int) ([]byte, error) {
|
|
if w != WireFixed32 {
|
|
return b, errInternalBadWireType
|
|
}
|
|
if len(b) < 4 {
|
|
return nil, io.ErrUnexpectedEOF
|
|
}
|
|
v := int32(b[0]) | int32(b[1])<<8 | int32(b[2])<<16 | int32(b[3])<<24
|
|
f.setInt32Ptr(v)
|
|
return b[4:], nil
|
|
}
|
|
|
|
func unmarshalFixedS32Slice(b []byte, f pointer, w int) ([]byte, error) {
|
|
if w == WireBytes { // packed
|
|
x, n := decodeVarint(b)
|
|
if n == 0 {
|
|
return nil, io.ErrUnexpectedEOF
|
|
}
|
|
b = b[n:]
|
|
if x > uint64(len(b)) {
|
|
return nil, io.ErrUnexpectedEOF
|
|
}
|
|
res := b[x:]
|
|
b = b[:x]
|
|
for len(b) > 0 {
|
|
if len(b) < 4 {
|
|
return nil, io.ErrUnexpectedEOF
|
|
}
|
|
v := int32(b[0]) | int32(b[1])<<8 | int32(b[2])<<16 | int32(b[3])<<24
|
|
f.appendInt32Slice(v)
|
|
b = b[4:]
|
|
}
|
|
return res, nil
|
|
}
|
|
if w != WireFixed32 {
|
|
return b, errInternalBadWireType
|
|
}
|
|
if len(b) < 4 {
|
|
return nil, io.ErrUnexpectedEOF
|
|
}
|
|
v := int32(b[0]) | int32(b[1])<<8 | int32(b[2])<<16 | int32(b[3])<<24
|
|
f.appendInt32Slice(v)
|
|
return b[4:], nil
|
|
}
|
|
|
|
func unmarshalBoolValue(b []byte, f pointer, w int) ([]byte, error) {
|
|
if w != WireVarint {
|
|
return b, errInternalBadWireType
|
|
}
|
|
// Note: any length varint is allowed, even though any sane
|
|
// encoder will use one byte.
|
|
// See https://github.com/golang/protobuf/issues/76
|
|
x, n := decodeVarint(b)
|
|
if n == 0 {
|
|
return nil, io.ErrUnexpectedEOF
|
|
}
|
|
// TODO: check if x>1? Tests seem to indicate no.
|
|
v := x != 0
|
|
*f.toBool() = v
|
|
return b[n:], nil
|
|
}
|
|
|
|
func unmarshalBoolPtr(b []byte, f pointer, w int) ([]byte, error) {
|
|
if w != WireVarint {
|
|
return b, errInternalBadWireType
|
|
}
|
|
x, n := decodeVarint(b)
|
|
if n == 0 {
|
|
return nil, io.ErrUnexpectedEOF
|
|
}
|
|
v := x != 0
|
|
*f.toBoolPtr() = &v
|
|
return b[n:], nil
|
|
}
|
|
|
|
func unmarshalBoolSlice(b []byte, f pointer, w int) ([]byte, error) {
|
|
if w == WireBytes { // packed
|
|
x, n := decodeVarint(b)
|
|
if n == 0 {
|
|
return nil, io.ErrUnexpectedEOF
|
|
}
|
|
b = b[n:]
|
|
if x > uint64(len(b)) {
|
|
return nil, io.ErrUnexpectedEOF
|
|
}
|
|
res := b[x:]
|
|
b = b[:x]
|
|
for len(b) > 0 {
|
|
x, n = decodeVarint(b)
|
|
if n == 0 {
|
|
return nil, io.ErrUnexpectedEOF
|
|
}
|
|
v := x != 0
|
|
s := f.toBoolSlice()
|
|
*s = append(*s, v)
|
|
b = b[n:]
|
|
}
|
|
return res, nil
|
|
}
|
|
if w != WireVarint {
|
|
return b, errInternalBadWireType
|
|
}
|
|
x, n := decodeVarint(b)
|
|
if n == 0 {
|
|
return nil, io.ErrUnexpectedEOF
|
|
}
|
|
v := x != 0
|
|
s := f.toBoolSlice()
|
|
*s = append(*s, v)
|
|
return b[n:], nil
|
|
}
|
|
|
|
func unmarshalFloat64Value(b []byte, f pointer, w int) ([]byte, error) {
|
|
if w != WireFixed64 {
|
|
return b, errInternalBadWireType
|
|
}
|
|
if len(b) < 8 {
|
|
return nil, io.ErrUnexpectedEOF
|
|
}
|
|
v := math.Float64frombits(uint64(b[0]) | uint64(b[1])<<8 | uint64(b[2])<<16 | uint64(b[3])<<24 | uint64(b[4])<<32 | uint64(b[5])<<40 | uint64(b[6])<<48 | uint64(b[7])<<56)
|
|
*f.toFloat64() = v
|
|
return b[8:], nil
|
|
}
|
|
|
|
func unmarshalFloat64Ptr(b []byte, f pointer, w int) ([]byte, error) {
|
|
if w != WireFixed64 {
|
|
return b, errInternalBadWireType
|
|
}
|
|
if len(b) < 8 {
|
|
return nil, io.ErrUnexpectedEOF
|
|
}
|
|
v := math.Float64frombits(uint64(b[0]) | uint64(b[1])<<8 | uint64(b[2])<<16 | uint64(b[3])<<24 | uint64(b[4])<<32 | uint64(b[5])<<40 | uint64(b[6])<<48 | uint64(b[7])<<56)
|
|
*f.toFloat64Ptr() = &v
|
|
return b[8:], nil
|
|
}
|
|
|
|
func unmarshalFloat64Slice(b []byte, f pointer, w int) ([]byte, error) {
|
|
if w == WireBytes { // packed
|
|
x, n := decodeVarint(b)
|
|
if n == 0 {
|
|
return nil, io.ErrUnexpectedEOF
|
|
}
|
|
b = b[n:]
|
|
if x > uint64(len(b)) {
|
|
return nil, io.ErrUnexpectedEOF
|
|
}
|
|
res := b[x:]
|
|
b = b[:x]
|
|
for len(b) > 0 {
|
|
if len(b) < 8 {
|
|
return nil, io.ErrUnexpectedEOF
|
|
}
|
|
v := math.Float64frombits(uint64(b[0]) | uint64(b[1])<<8 | uint64(b[2])<<16 | uint64(b[3])<<24 | uint64(b[4])<<32 | uint64(b[5])<<40 | uint64(b[6])<<48 | uint64(b[7])<<56)
|
|
s := f.toFloat64Slice()
|
|
*s = append(*s, v)
|
|
b = b[8:]
|
|
}
|
|
return res, nil
|
|
}
|
|
if w != WireFixed64 {
|
|
return b, errInternalBadWireType
|
|
}
|
|
if len(b) < 8 {
|
|
return nil, io.ErrUnexpectedEOF
|
|
}
|
|
v := math.Float64frombits(uint64(b[0]) | uint64(b[1])<<8 | uint64(b[2])<<16 | uint64(b[3])<<24 | uint64(b[4])<<32 | uint64(b[5])<<40 | uint64(b[6])<<48 | uint64(b[7])<<56)
|
|
s := f.toFloat64Slice()
|
|
*s = append(*s, v)
|
|
return b[8:], nil
|
|
}
|
|
|
|
func unmarshalFloat32Value(b []byte, f pointer, w int) ([]byte, error) {
|
|
if w != WireFixed32 {
|
|
return b, errInternalBadWireType
|
|
}
|
|
if len(b) < 4 {
|
|
return nil, io.ErrUnexpectedEOF
|
|
}
|
|
v := math.Float32frombits(uint32(b[0]) | uint32(b[1])<<8 | uint32(b[2])<<16 | uint32(b[3])<<24)
|
|
*f.toFloat32() = v
|
|
return b[4:], nil
|
|
}
|
|
|
|
func unmarshalFloat32Ptr(b []byte, f pointer, w int) ([]byte, error) {
|
|
if w != WireFixed32 {
|
|
return b, errInternalBadWireType
|
|
}
|
|
if len(b) < 4 {
|
|
return nil, io.ErrUnexpectedEOF
|
|
}
|
|
v := math.Float32frombits(uint32(b[0]) | uint32(b[1])<<8 | uint32(b[2])<<16 | uint32(b[3])<<24)
|
|
*f.toFloat32Ptr() = &v
|
|
return b[4:], nil
|
|
}
|
|
|
|
func unmarshalFloat32Slice(b []byte, f pointer, w int) ([]byte, error) {
|
|
if w == WireBytes { // packed
|
|
x, n := decodeVarint(b)
|
|
if n == 0 {
|
|
return nil, io.ErrUnexpectedEOF
|
|
}
|
|
b = b[n:]
|
|
if x > uint64(len(b)) {
|
|
return nil, io.ErrUnexpectedEOF
|
|
}
|
|
res := b[x:]
|
|
b = b[:x]
|
|
for len(b) > 0 {
|
|
if len(b) < 4 {
|
|
return nil, io.ErrUnexpectedEOF
|
|
}
|
|
v := math.Float32frombits(uint32(b[0]) | uint32(b[1])<<8 | uint32(b[2])<<16 | uint32(b[3])<<24)
|
|
s := f.toFloat32Slice()
|
|
*s = append(*s, v)
|
|
b = b[4:]
|
|
}
|
|
return res, nil
|
|
}
|
|
if w != WireFixed32 {
|
|
return b, errInternalBadWireType
|
|
}
|
|
if len(b) < 4 {
|
|
return nil, io.ErrUnexpectedEOF
|
|
}
|
|
v := math.Float32frombits(uint32(b[0]) | uint32(b[1])<<8 | uint32(b[2])<<16 | uint32(b[3])<<24)
|
|
s := f.toFloat32Slice()
|
|
*s = append(*s, v)
|
|
return b[4:], nil
|
|
}
|
|
|
|
func unmarshalStringValue(b []byte, f pointer, w int) ([]byte, error) {
|
|
if w != WireBytes {
|
|
return b, errInternalBadWireType
|
|
}
|
|
x, n := decodeVarint(b)
|
|
if n == 0 {
|
|
return nil, io.ErrUnexpectedEOF
|
|
}
|
|
b = b[n:]
|
|
if x > uint64(len(b)) {
|
|
return nil, io.ErrUnexpectedEOF
|
|
}
|
|
v := string(b[:x])
|
|
*f.toString() = v
|
|
return b[x:], nil
|
|
}
|
|
|
|
func unmarshalStringPtr(b []byte, f pointer, w int) ([]byte, error) {
|
|
if w != WireBytes {
|
|
return b, errInternalBadWireType
|
|
}
|
|
x, n := decodeVarint(b)
|
|
if n == 0 {
|
|
return nil, io.ErrUnexpectedEOF
|
|
}
|
|
b = b[n:]
|
|
if x > uint64(len(b)) {
|
|
return nil, io.ErrUnexpectedEOF
|
|
}
|
|
v := string(b[:x])
|
|
*f.toStringPtr() = &v
|
|
return b[x:], nil
|
|
}
|
|
|
|
func unmarshalStringSlice(b []byte, f pointer, w int) ([]byte, error) {
|
|
if w != WireBytes {
|
|
return b, errInternalBadWireType
|
|
}
|
|
x, n := decodeVarint(b)
|
|
if n == 0 {
|
|
return nil, io.ErrUnexpectedEOF
|
|
}
|
|
b = b[n:]
|
|
if x > uint64(len(b)) {
|
|
return nil, io.ErrUnexpectedEOF
|
|
}
|
|
v := string(b[:x])
|
|
s := f.toStringSlice()
|
|
*s = append(*s, v)
|
|
return b[x:], nil
|
|
}
|
|
|
|
func unmarshalUTF8StringValue(b []byte, f pointer, w int) ([]byte, error) {
|
|
if w != WireBytes {
|
|
return b, errInternalBadWireType
|
|
}
|
|
x, n := decodeVarint(b)
|
|
if n == 0 {
|
|
return nil, io.ErrUnexpectedEOF
|
|
}
|
|
b = b[n:]
|
|
if x > uint64(len(b)) {
|
|
return nil, io.ErrUnexpectedEOF
|
|
}
|
|
v := string(b[:x])
|
|
*f.toString() = v
|
|
if !utf8.ValidString(v) {
|
|
return b[x:], errInvalidUTF8
|
|
}
|
|
return b[x:], nil
|
|
}
|
|
|
|
func unmarshalUTF8StringPtr(b []byte, f pointer, w int) ([]byte, error) {
|
|
if w != WireBytes {
|
|
return b, errInternalBadWireType
|
|
}
|
|
x, n := decodeVarint(b)
|
|
if n == 0 {
|
|
return nil, io.ErrUnexpectedEOF
|
|
}
|
|
b = b[n:]
|
|
if x > uint64(len(b)) {
|
|
return nil, io.ErrUnexpectedEOF
|
|
}
|
|
v := string(b[:x])
|
|
*f.toStringPtr() = &v
|
|
if !utf8.ValidString(v) {
|
|
return b[x:], errInvalidUTF8
|
|
}
|
|
return b[x:], nil
|
|
}
|
|
|
|
func unmarshalUTF8StringSlice(b []byte, f pointer, w int) ([]byte, error) {
|
|
if w != WireBytes {
|
|
return b, errInternalBadWireType
|
|
}
|
|
x, n := decodeVarint(b)
|
|
if n == 0 {
|
|
return nil, io.ErrUnexpectedEOF
|
|
}
|
|
b = b[n:]
|
|
if x > uint64(len(b)) {
|
|
return nil, io.ErrUnexpectedEOF
|
|
}
|
|
v := string(b[:x])
|
|
s := f.toStringSlice()
|
|
*s = append(*s, v)
|
|
if !utf8.ValidString(v) {
|
|
return b[x:], errInvalidUTF8
|
|
}
|
|
return b[x:], nil
|
|
}
|
|
|
|
var emptyBuf [0]byte
|
|
|
|
func unmarshalBytesValue(b []byte, f pointer, w int) ([]byte, error) {
|
|
if w != WireBytes {
|
|
return b, errInternalBadWireType
|
|
}
|
|
x, n := decodeVarint(b)
|
|
if n == 0 {
|
|
return nil, io.ErrUnexpectedEOF
|
|
}
|
|
b = b[n:]
|
|
if x > uint64(len(b)) {
|
|
return nil, io.ErrUnexpectedEOF
|
|
}
|
|
// The use of append here is a trick which avoids the zeroing
|
|
// that would be required if we used a make/copy pair.
|
|
// We append to emptyBuf instead of nil because we want
|
|
// a non-nil result even when the length is 0.
|
|
v := append(emptyBuf[:], b[:x]...)
|
|
*f.toBytes() = v
|
|
return b[x:], nil
|
|
}
|
|
|
|
func unmarshalBytesSlice(b []byte, f pointer, w int) ([]byte, error) {
|
|
if w != WireBytes {
|
|
return b, errInternalBadWireType
|
|
}
|
|
x, n := decodeVarint(b)
|
|
if n == 0 {
|
|
return nil, io.ErrUnexpectedEOF
|
|
}
|
|
b = b[n:]
|
|
if x > uint64(len(b)) {
|
|
return nil, io.ErrUnexpectedEOF
|
|
}
|
|
v := append(emptyBuf[:], b[:x]...)
|
|
s := f.toBytesSlice()
|
|
*s = append(*s, v)
|
|
return b[x:], nil
|
|
}
|
|
|
|
func makeUnmarshalMessagePtr(sub *unmarshalInfo, name string) unmarshaler {
|
|
return func(b []byte, f pointer, w int) ([]byte, error) {
|
|
if w != WireBytes {
|
|
return b, errInternalBadWireType
|
|
}
|
|
x, n := decodeVarint(b)
|
|
if n == 0 {
|
|
return nil, io.ErrUnexpectedEOF
|
|
}
|
|
b = b[n:]
|
|
if x > uint64(len(b)) {
|
|
return nil, io.ErrUnexpectedEOF
|
|
}
|
|
// First read the message field to see if something is there.
|
|
// The semantics of multiple submessages are weird. Instead of
|
|
// the last one winning (as it is for all other fields), multiple
|
|
// submessages are merged.
|
|
v := f.getPointer()
|
|
if v.isNil() {
|
|
v = valToPointer(reflect.New(sub.typ))
|
|
f.setPointer(v)
|
|
}
|
|
err := sub.unmarshal(v, b[:x])
|
|
if err != nil {
|
|
if r, ok := err.(*RequiredNotSetError); ok {
|
|
r.field = name + "." + r.field
|
|
} else {
|
|
return nil, err
|
|
}
|
|
}
|
|
return b[x:], err
|
|
}
|
|
}
|
|
|
|
func makeUnmarshalMessageSlicePtr(sub *unmarshalInfo, name string) unmarshaler {
|
|
return func(b []byte, f pointer, w int) ([]byte, error) {
|
|
if w != WireBytes {
|
|
return b, errInternalBadWireType
|
|
}
|
|
x, n := decodeVarint(b)
|
|
if n == 0 {
|
|
return nil, io.ErrUnexpectedEOF
|
|
}
|
|
b = b[n:]
|
|
if x > uint64(len(b)) {
|
|
return nil, io.ErrUnexpectedEOF
|
|
}
|
|
v := valToPointer(reflect.New(sub.typ))
|
|
err := sub.unmarshal(v, b[:x])
|
|
if err != nil {
|
|
if r, ok := err.(*RequiredNotSetError); ok {
|
|
r.field = name + "." + r.field
|
|
} else {
|
|
return nil, err
|
|
}
|
|
}
|
|
f.appendPointer(v)
|
|
return b[x:], err
|
|
}
|
|
}
|
|
|
|
func makeUnmarshalGroupPtr(sub *unmarshalInfo, name string) unmarshaler {
|
|
return func(b []byte, f pointer, w int) ([]byte, error) {
|
|
if w != WireStartGroup {
|
|
return b, errInternalBadWireType
|
|
}
|
|
x, y := findEndGroup(b)
|
|
if x < 0 {
|
|
return nil, io.ErrUnexpectedEOF
|
|
}
|
|
v := f.getPointer()
|
|
if v.isNil() {
|
|
v = valToPointer(reflect.New(sub.typ))
|
|
f.setPointer(v)
|
|
}
|
|
err := sub.unmarshal(v, b[:x])
|
|
if err != nil {
|
|
if r, ok := err.(*RequiredNotSetError); ok {
|
|
r.field = name + "." + r.field
|
|
} else {
|
|
return nil, err
|
|
}
|
|
}
|
|
return b[y:], err
|
|
}
|
|
}
|
|
|
|
func makeUnmarshalGroupSlicePtr(sub *unmarshalInfo, name string) unmarshaler {
|
|
return func(b []byte, f pointer, w int) ([]byte, error) {
|
|
if w != WireStartGroup {
|
|
return b, errInternalBadWireType
|
|
}
|
|
x, y := findEndGroup(b)
|
|
if x < 0 {
|
|
return nil, io.ErrUnexpectedEOF
|
|
}
|
|
v := valToPointer(reflect.New(sub.typ))
|
|
err := sub.unmarshal(v, b[:x])
|
|
if err != nil {
|
|
if r, ok := err.(*RequiredNotSetError); ok {
|
|
r.field = name + "." + r.field
|
|
} else {
|
|
return nil, err
|
|
}
|
|
}
|
|
f.appendPointer(v)
|
|
return b[y:], err
|
|
}
|
|
}
|
|
|
|
func makeUnmarshalMap(f *reflect.StructField) unmarshaler {
|
|
t := f.Type
|
|
kt := t.Key()
|
|
vt := t.Elem()
|
|
tagArray := strings.Split(f.Tag.Get("protobuf"), ",")
|
|
valTags := strings.Split(f.Tag.Get("protobuf_val"), ",")
|
|
for _, t := range tagArray {
|
|
if strings.HasPrefix(t, "customtype=") {
|
|
valTags = append(valTags, t)
|
|
}
|
|
if t == "stdtime" {
|
|
valTags = append(valTags, t)
|
|
}
|
|
if t == "stdduration" {
|
|
valTags = append(valTags, t)
|
|
}
|
|
if t == "wktptr" {
|
|
valTags = append(valTags, t)
|
|
}
|
|
}
|
|
unmarshalKey := typeUnmarshaler(kt, f.Tag.Get("protobuf_key"))
|
|
unmarshalVal := typeUnmarshaler(vt, strings.Join(valTags, ","))
|
|
return func(b []byte, f pointer, w int) ([]byte, error) {
|
|
// The map entry is a submessage. Figure out how big it is.
|
|
if w != WireBytes {
|
|
return nil, fmt.Errorf("proto: bad wiretype for map field: got %d want %d", w, WireBytes)
|
|
}
|
|
x, n := decodeVarint(b)
|
|
if n == 0 {
|
|
return nil, io.ErrUnexpectedEOF
|
|
}
|
|
b = b[n:]
|
|
if x > uint64(len(b)) {
|
|
return nil, io.ErrUnexpectedEOF
|
|
}
|
|
r := b[x:] // unused data to return
|
|
b = b[:x] // data for map entry
|
|
|
|
// Note: we could use #keys * #values ~= 200 functions
|
|
// to do map decoding without reflection. Probably not worth it.
|
|
// Maps will be somewhat slow. Oh well.
|
|
|
|
// Read key and value from data.
|
|
var nerr nonFatal
|
|
k := reflect.New(kt)
|
|
v := reflect.New(vt)
|
|
for len(b) > 0 {
|
|
x, n := decodeVarint(b)
|
|
if n == 0 {
|
|
return nil, io.ErrUnexpectedEOF
|
|
}
|
|
wire := int(x) & 7
|
|
b = b[n:]
|
|
|
|
var err error
|
|
switch x >> 3 {
|
|
case 1:
|
|
b, err = unmarshalKey(b, valToPointer(k), wire)
|
|
case 2:
|
|
b, err = unmarshalVal(b, valToPointer(v), wire)
|
|
default:
|
|
err = errInternalBadWireType // skip unknown tag
|
|
}
|
|
|
|
if nerr.Merge(err) {
|
|
continue
|
|
}
|
|
if err != errInternalBadWireType {
|
|
return nil, err
|
|
}
|
|
|
|
// Skip past unknown fields.
|
|
b, err = skipField(b, wire)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
}
|
|
|
|
// Get map, allocate if needed.
|
|
m := f.asPointerTo(t).Elem() // an addressable map[K]T
|
|
if m.IsNil() {
|
|
m.Set(reflect.MakeMap(t))
|
|
}
|
|
|
|
// Insert into map.
|
|
m.SetMapIndex(k.Elem(), v.Elem())
|
|
|
|
return r, nerr.E
|
|
}
|
|
}
|
|
|
|
// makeUnmarshalOneof makes an unmarshaler for oneof fields.
|
|
// for:
|
|
// message Msg {
|
|
// oneof F {
|
|
// int64 X = 1;
|
|
// float64 Y = 2;
|
|
// }
|
|
// }
|
|
// typ is the type of the concrete entry for a oneof case (e.g. Msg_X).
|
|
// ityp is the interface type of the oneof field (e.g. isMsg_F).
|
|
// unmarshal is the unmarshaler for the base type of the oneof case (e.g. int64).
|
|
// Note that this function will be called once for each case in the oneof.
|
|
func makeUnmarshalOneof(typ, ityp reflect.Type, unmarshal unmarshaler) unmarshaler {
|
|
sf := typ.Field(0)
|
|
field0 := toField(&sf)
|
|
return func(b []byte, f pointer, w int) ([]byte, error) {
|
|
// Allocate holder for value.
|
|
v := reflect.New(typ)
|
|
|
|
// Unmarshal data into holder.
|
|
// We unmarshal into the first field of the holder object.
|
|
var err error
|
|
var nerr nonFatal
|
|
b, err = unmarshal(b, valToPointer(v).offset(field0), w)
|
|
if !nerr.Merge(err) {
|
|
return nil, err
|
|
}
|
|
|
|
// Write pointer to holder into target field.
|
|
f.asPointerTo(ityp).Elem().Set(v)
|
|
|
|
return b, nerr.E
|
|
}
|
|
}
|
|
|
|
// Error used by decode internally.
|
|
var errInternalBadWireType = errors.New("proto: internal error: bad wiretype")
|
|
|
|
// skipField skips past a field of type wire and returns the remaining bytes.
|
|
func skipField(b []byte, wire int) ([]byte, error) {
|
|
switch wire {
|
|
case WireVarint:
|
|
_, k := decodeVarint(b)
|
|
if k == 0 {
|
|
return b, io.ErrUnexpectedEOF
|
|
}
|
|
b = b[k:]
|
|
case WireFixed32:
|
|
if len(b) < 4 {
|
|
return b, io.ErrUnexpectedEOF
|
|
}
|
|
b = b[4:]
|
|
case WireFixed64:
|
|
if len(b) < 8 {
|
|
return b, io.ErrUnexpectedEOF
|
|
}
|
|
b = b[8:]
|
|
case WireBytes:
|
|
m, k := decodeVarint(b)
|
|
if k == 0 || uint64(len(b)-k) < m {
|
|
return b, io.ErrUnexpectedEOF
|
|
}
|
|
b = b[uint64(k)+m:]
|
|
case WireStartGroup:
|
|
_, i := findEndGroup(b)
|
|
if i == -1 {
|
|
return b, io.ErrUnexpectedEOF
|
|
}
|
|
b = b[i:]
|
|
default:
|
|
return b, fmt.Errorf("proto: can't skip unknown wire type %d", wire)
|
|
}
|
|
return b, nil
|
|
}
|
|
|
|
// findEndGroup finds the index of the next EndGroup tag.
|
|
// Groups may be nested, so the "next" EndGroup tag is the first
|
|
// unpaired EndGroup.
|
|
// findEndGroup returns the indexes of the start and end of the EndGroup tag.
|
|
// Returns (-1,-1) if it can't find one.
|
|
func findEndGroup(b []byte) (int, int) {
|
|
depth := 1
|
|
i := 0
|
|
for {
|
|
x, n := decodeVarint(b[i:])
|
|
if n == 0 {
|
|
return -1, -1
|
|
}
|
|
j := i
|
|
i += n
|
|
switch x & 7 {
|
|
case WireVarint:
|
|
_, k := decodeVarint(b[i:])
|
|
if k == 0 {
|
|
return -1, -1
|
|
}
|
|
i += k
|
|
case WireFixed32:
|
|
if len(b)-4 < i {
|
|
return -1, -1
|
|
}
|
|
i += 4
|
|
case WireFixed64:
|
|
if len(b)-8 < i {
|
|
return -1, -1
|
|
}
|
|
i += 8
|
|
case WireBytes:
|
|
m, k := decodeVarint(b[i:])
|
|
if k == 0 {
|
|
return -1, -1
|
|
}
|
|
i += k
|
|
if uint64(len(b)-i) < m {
|
|
return -1, -1
|
|
}
|
|
i += int(m)
|
|
case WireStartGroup:
|
|
depth++
|
|
case WireEndGroup:
|
|
depth--
|
|
if depth == 0 {
|
|
return j, i
|
|
}
|
|
default:
|
|
return -1, -1
|
|
}
|
|
}
|
|
}
|
|
|
|
// encodeVarint appends a varint-encoded integer to b and returns the result.
|
|
func encodeVarint(b []byte, x uint64) []byte {
|
|
for x >= 1<<7 {
|
|
b = append(b, byte(x&0x7f|0x80))
|
|
x >>= 7
|
|
}
|
|
return append(b, byte(x))
|
|
}
|
|
|
|
// decodeVarint reads a varint-encoded integer from b.
|
|
// Returns the decoded integer and the number of bytes read.
|
|
// If there is an error, it returns 0,0.
|
|
func decodeVarint(b []byte) (uint64, int) {
|
|
var x, y uint64
|
|
if len(b) == 0 {
|
|
goto bad
|
|
}
|
|
x = uint64(b[0])
|
|
if x < 0x80 {
|
|
return x, 1
|
|
}
|
|
x -= 0x80
|
|
|
|
if len(b) <= 1 {
|
|
goto bad
|
|
}
|
|
y = uint64(b[1])
|
|
x += y << 7
|
|
if y < 0x80 {
|
|
return x, 2
|
|
}
|
|
x -= 0x80 << 7
|
|
|
|
if len(b) <= 2 {
|
|
goto bad
|
|
}
|
|
y = uint64(b[2])
|
|
x += y << 14
|
|
if y < 0x80 {
|
|
return x, 3
|
|
}
|
|
x -= 0x80 << 14
|
|
|
|
if len(b) <= 3 {
|
|
goto bad
|
|
}
|
|
y = uint64(b[3])
|
|
x += y << 21
|
|
if y < 0x80 {
|
|
return x, 4
|
|
}
|
|
x -= 0x80 << 21
|
|
|
|
if len(b) <= 4 {
|
|
goto bad
|
|
}
|
|
y = uint64(b[4])
|
|
x += y << 28
|
|
if y < 0x80 {
|
|
return x, 5
|
|
}
|
|
x -= 0x80 << 28
|
|
|
|
if len(b) <= 5 {
|
|
goto bad
|
|
}
|
|
y = uint64(b[5])
|
|
x += y << 35
|
|
if y < 0x80 {
|
|
return x, 6
|
|
}
|
|
x -= 0x80 << 35
|
|
|
|
if len(b) <= 6 {
|
|
goto bad
|
|
}
|
|
y = uint64(b[6])
|
|
x += y << 42
|
|
if y < 0x80 {
|
|
return x, 7
|
|
}
|
|
x -= 0x80 << 42
|
|
|
|
if len(b) <= 7 {
|
|
goto bad
|
|
}
|
|
y = uint64(b[7])
|
|
x += y << 49
|
|
if y < 0x80 {
|
|
return x, 8
|
|
}
|
|
x -= 0x80 << 49
|
|
|
|
if len(b) <= 8 {
|
|
goto bad
|
|
}
|
|
y = uint64(b[8])
|
|
x += y << 56
|
|
if y < 0x80 {
|
|
return x, 9
|
|
}
|
|
x -= 0x80 << 56
|
|
|
|
if len(b) <= 9 {
|
|
goto bad
|
|
}
|
|
y = uint64(b[9])
|
|
x += y << 63
|
|
if y < 2 {
|
|
return x, 10
|
|
}
|
|
|
|
bad:
|
|
return 0, 0
|
|
}
|