private static SprotoType _parse_type(Lexer lexer, SprotoType type)
{
while (true)
{
Token token = lexer.tokens[0];
if ("eof" == token.type || "block_end" == token.type)
{
break;
}
if (token.type == "point")
{
lexer.pop_token();
SprotoType nest_type = parse_type(lexer);
type.AddType(nest_type);
}
else
{
type.AddField(parse_field(lexer, type));
}
}
expect(lexer, "block_end");
if (lexer.tokens[0].type != "eof")
{
ignore(lexer, "space");
}
return(type);
}
// Parser from binary(*.spb)
private static void _ParseFromBinary(SprotoMgr sprotomgr, byte[] bytes, int length)
{
SprotoMgr meta = SprotoParser.Parse(meta_proto);
SprotoStream reader = new SprotoStream();
reader.Write(bytes, 0, length);
reader.Seek(0, SprotoStream.SEEK_BEGIN);
SprotoObject group = meta.Decode("group", reader);
List <SprotoObject> types = null;
List <SprotoObject> protocols = null;
if (group.Get("type") != null)
{
types = group.Get("type");
foreach (SprotoObject meta_type in types)
{
SprotoType type = new SprotoType();
type.name = meta_type["name"];
if (meta_type.Has("fields"))
{
List <SprotoObject> fields = meta_type["fields"];
foreach (SprotoObject meta_field in fields)
{
SprotoField field = new SprotoField();
field.name = meta_field["name"];
field.tag = (UInt16)meta_field["tag"];
field.is_array = false;
if (meta_field.Has("array"))
{
field.is_array = (bool)meta_field["array"];
}
Int64 type_id;
if (meta_field.Has("buildin"))
{
type_id = meta_field["buildin"];
field.type = SprotoParser.BuildInTypeId2Name[type_id];
if (type_id == 0 && meta_field.Has("type"))
{
// fixed float
field.digit = (UInt16)meta_field["type"];
}
else if (type_id == 2 && meta_field.Has("type"))
{
// binary
field.type = "binary";
}
}
else
{
type_id = meta_field["type"];
SprotoObject t = types[(int)type_id];
field.type = t["name"];
// map
if (meta_field.Has("key"))
{
SprotoHelper.Assert(field.is_array);
UInt16 map_index = (UInt16)meta_field["key"];
List <SprotoObject> t_fields = t["fields"];
string name = null;
foreach (SprotoObject f in t_fields)
{
if (f["tag"] == map_index)
{
name = f["name"];
break;
}
}
SprotoHelper.Assert(name != null, String.Format("map index {0} cann't find in type '{1}'", map_index, field.type));
field.key = name;
}
}
type.AddField(field);
}
}
sprotomgr.AddType(type);
}
}
if (group.Get("protocol") != null)
{
protocols = group.Get("protocol");
foreach (SprotoObject meta_protocol in protocols)
{
SprotoProtocol protocol = new SprotoProtocol();
protocol.name = meta_protocol["name"];
protocol.tag = (UInt16)meta_protocol["tag"];
if (meta_protocol["request"] != null)
{
Int64 request = meta_protocol["request"];
protocol.request = types[(int)request]["name"];
}
if (meta_protocol["response"] != null)
{
Int64 response = meta_protocol["response"];
protocol.response = types[(int)response]["name"];
}
bool confirm = meta_protocol["confirm"];
if (confirm)
{
protocol.response = null;
}
sprotomgr.AddProtocol(protocol);
}
}
}
