Method AssignTypeMetaIndexIfAbsent

csharp/src/Fory/WriteContext.cs:68–133

(Type type)

    }

    internal (uint Index, bool IsNew) AssignTypeMetaIndexIfAbsent(Type type)
    {
        ulong typeKey = TypeMapKey.Get(type);
        switch (_inlineTypeMetaCount)
        {
            case 0:
                _firstInlineTypeMetaKey = typeKey;
                _inlineTypeMetaCount = 1;
                _nextTypeMetaIndex = 1;
                return (0, true);
            case 1:
                if (_firstInlineTypeMetaKey == typeKey)
                {
                    return (0, false);
                }

                _secondInlineTypeMetaKey = typeKey;
                _inlineTypeMetaCount = 2;
                _nextTypeMetaIndex = 2;
                return (1, true);
            case 2:
                if (_firstInlineTypeMetaKey == typeKey)
                {
                    return (0, false);
                }

                if (_secondInlineTypeMetaKey == typeKey)
                {
                    return (1, false);
                }

                _thirdInlineTypeMetaKey = typeKey;
                _inlineTypeMetaCount = InlineTypeMetaSlots;
                _nextTypeMetaIndex = InlineTypeMetaSlots;
                return (2, true);
        }

        if (_firstInlineTypeMetaKey == typeKey)
        {
            return (0, false);
        }

        if (_secondInlineTypeMetaKey == typeKey)
        {
            return (1, false);
        }

        if (_thirdInlineTypeMetaKey == typeKey)
        {
            return (2, false);
        }

        if (_typeMetaIndexByType is null)
        {
            _typeMetaIndexByType = new UInt64Map<uint>();
        }
        else if (_typeMetaIndexByType.TryGetValue(typeKey, out uint existing))
        {