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Unreader to unread bytes

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This commit is contained in:
Jae Kwon
2014-12-29 15:14:54 -08:00
parent 946fa21dc7
commit 5bace5cce8
19 changed files with 84 additions and 57 deletions
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36
binary/reflect.go
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@ -47,34 +47,44 @@ func GetTypeInfo(rt reflect.Type) *TypeInfo {
// NOTE: not goroutine safe, so only call upon program init.
func RegisterType(info *TypeInfo) *TypeInfo {
// Register the type info
typeInfos[info.Type] = info
// Also register the underlying struct's info, if info.Type is a pointer.
// Or, if info.Type is not a pointer, register the pointer.
var rt, ptrRt reflect.Type
if info.Type.Kind() == reflect.Ptr {
rt := info.Type.Elem()
typeInfos[rt] = info
rt, ptrRt = info.Type.Elem(), info.Type
} else {
ptrRt := reflect.PtrTo(info.Type)
typeInfos[ptrRt] = info
rt, ptrRt = info.Type, reflect.PtrTo(info.Type)
}
// Register the type info
typeInfos[rt] = info
typeInfos[ptrRt] = info
// See if the type implements HasTypeByte
if info.Type.Implements(reflect.TypeOf((*HasTypeByte)(nil)).Elem()) {
zero := reflect.Zero(info.Type)
if rt.Implements(reflect.TypeOf((*HasTypeByte)(nil)).Elem()) {
zero := reflect.Zero(rt)
typeByte := zero.Interface().(HasTypeByte).TypeByte()
if info.HasTypeByte && info.TypeByte != typeByte {
panic(fmt.Sprintf("Type %v expected TypeByte of %X", info.Type, typeByte))
panic(fmt.Sprintf("Type %v expected TypeByte of %X", rt, typeByte))
} else {
info.HasTypeByte = true
info.TypeByte = typeByte
}
} else if ptrRt.Implements(reflect.TypeOf((*HasTypeByte)(nil)).Elem()) {
zero := reflect.Zero(ptrRt)
typeByte := zero.Interface().(HasTypeByte).TypeByte()
if info.HasTypeByte && info.TypeByte != typeByte {
panic(fmt.Sprintf("Type %v expected TypeByte of %X", ptrRt, typeByte))
} else {
info.HasTypeByte = true
info.TypeByte = typeByte
}
info.HasTypeByte = true
info.TypeByte = typeByte
}
return info
}
func readReflect(rv reflect.Value, rt reflect.Type, r io.Reader, n *int64, err *error) {
func readReflect(rv reflect.Value, rt reflect.Type, r Unreader, n *int64, err *error) {
// First, create a new struct if rv is nil pointer.
if rt.Kind() == reflect.Ptr && rv.IsNil() {