private bool IsTypeMatch(SpField f, SpObject o)
{
if (f == null || f.Type == null || o == null)
{
return(false);
}
if (f.IsTable && o.IsTable())
{
return(true);
}
else if (f.Type == mTypeManager.String)
{
if (o.IsString())
{
return(true);
}
}
else if (f.Type == mTypeManager.Boolean)
{
if (o.IsBoolean())
{
return(true);
}
}
else if (f.Type == mTypeManager.Integer)
{
if (o.IsInt() || o.IsLong())
{
return(true);
}
}
else if (o.IsTable())
{
return(true);
}
return(false);
}
private bool EncodeInternal(SpType type, SpObject obj)
{
if (mStream == null || type == null || obj == null)
{
return(false);
}
// buildin type decoding should not be here
if (mTypeManager.IsBuildinType(type))
{
return(false);
}
int begin = mStream.Position;
// fn. will be update later
short fn = 0;
mStream.Write(fn);
List <KeyValuePair <SpObject, SpField> > objs = new List <KeyValuePair <SpObject, SpField> >();
int current_tag = -1;
Dictionary <int, SpField> .ValueCollection.Enumerator en = type.Fields.Values.GetEnumerator();
while (en.MoveNext())
{
SpField f = en.Current;
if (f == null)
{
return(false);
}
SpObject o = obj[f.Name];
if (o == null || IsTypeMatch(f, o) == false)
{
continue;
}
if (f.Tag <= current_tag)
{
return(false);
}
if (f.Tag - current_tag > 1)
{
mStream.Write((short)(2 * (f.Tag - current_tag - 1) - 1));
fn++;
}
bool standalone = true;
if (f.IsTable == false)
{
if (f.Type == mTypeManager.Boolean)
{
int value = o.AsBoolean() ? 1 : 0;
mStream.Write((short)((value + 1) * 2));
standalone = false;
}
else if (f.Type == mTypeManager.Integer)
{
int value = o.AsInt();
if (value >= 0 && value < 0x7fff)
{
mStream.Write((short)((value + 1) * 2));
standalone = false;
}
}
}
if (standalone)
{
objs.Add(new KeyValuePair <SpObject, SpField>(o, f));
mStream.Write((short)0);
}
fn++;
current_tag = f.Tag;
}
List <KeyValuePair <SpObject, SpField> > .Enumerator e = objs.GetEnumerator();
while (e.MoveNext())
{
KeyValuePair <SpObject, SpField> entry = e.Current;
if (entry.Value.IsTable)
{
int array_begin = mStream.Position;
int size = 0;
mStream.Write(size);
if (entry.Value.Type == mTypeManager.Integer)
{
byte len = 4;
Dictionary <object, SpObject> .Enumerator enumerator = entry.Key.AsTable().GetEnumerator();
while (enumerator.MoveNext())
{
SpObject o = enumerator.Current.Value;
if (o.IsLong())
{
len = 8;
break;
}
}
mStream.Write(len);
enumerator = entry.Key.AsTable().GetEnumerator();
while (enumerator.MoveNext())
{
SpObject o = enumerator.Current.Value;
if (len == 4)
{
mStream.Write(o.AsInt());
}
else
{
mStream.Write(o.AsLong());
}
}
}
else if (entry.Value.Type == mTypeManager.Boolean)
{
Dictionary <object, SpObject> .Enumerator enumerator = entry.Key.AsTable().GetEnumerator();
while (enumerator.MoveNext())
{
SpObject o = enumerator.Current.Value;
mStream.Write((byte)(o.AsBoolean() ? 1 : 0));
}
}
else if (entry.Value.Type == mTypeManager.String)
{
Dictionary <object, SpObject> .Enumerator enumerator = entry.Key.AsTable().GetEnumerator();
while (enumerator.MoveNext())
{
SpObject o = enumerator.Current.Value;
byte[] b = Encoding.UTF8.GetBytes(o.AsString());
mStream.Write(b.Length);
mStream.Write(b);
}
}
else
{
Dictionary <object, SpObject> .Enumerator enumerator = entry.Key.AsTable().GetEnumerator();
while (enumerator.MoveNext())
{
SpObject o = enumerator.Current.Value;
int obj_begin = mStream.Position;
int obj_size = 0;
mStream.Write(obj_size);
if (EncodeInternal(entry.Value.Type, o) == false)
{
return(false);
}
int obj_end = mStream.Position;
obj_size = (int)(obj_end - obj_begin - 4);
mStream.Position = obj_begin;
mStream.Write(obj_size);
mStream.Position = obj_end;
}
}
int array_end = mStream.Position;
size = (int)(array_end - array_begin - 4);
mStream.Position = array_begin;
mStream.Write(size);
mStream.Position = array_end;
}
else
{
if (entry.Key.IsString())
{
byte[] b = Encoding.UTF8.GetBytes(entry.Key.AsString());
mStream.Write(b.Length);
mStream.Write(b);
}
else if (entry.Key.IsInt())
{
mStream.Write((int)4);
mStream.Write(entry.Key.AsInt());
}
else if (entry.Key.IsLong())
{
mStream.Write((int)8);
mStream.Write(entry.Key.AsLong());
}
else if (entry.Key.IsBoolean())
{
// boolean should not be here
return(false);
}
else
{
int obj_begin = mStream.Position;
int obj_size = 0;
mStream.Write(obj_size);
if (EncodeInternal(entry.Value.Type, entry.Key) == false)
{
return(false);
}
int obj_end = mStream.Position;
obj_size = (int)(obj_end - obj_begin - 4);
mStream.Position = obj_begin;
mStream.Write(obj_size);
mStream.Position = obj_end;
}
}
}
int end = mStream.Position;
mStream.Position = begin;
mStream.Write(fn);
mStream.Position = end;
return(true);
}
