Пример #1
0
        public override void ExplicitVisit(IntegerLiteral node)
        {
            var sys_int_name = this.GetSqlNameSys().ChildWellkown("int");
            var t            = new ModelSematicScalarType()
            {
                Name           = sys_int_name,
                SystemDataType = ModelSystemDataType.Int
            };
            var v = new ModelSematicValueScalar()
            {
                Type    = t,
                Value   = node.Value,
                IsConst = true
            };

            node.Analyse.ResultType  = new SqlCodeType(t);
            node.Analyse.ResultValue = new SqlCodeResultConst(v);

            /*
             * no need for base.ExplicitVisit(node);
             */
        }
Пример #2
0
        public override void ExplicitVisit(SqlDataTypeReference node)
        {
            var     name              = node.Name;
            var     parameters        = node.Parameters;
            SqlName typename          = SqlName.From(node.Name);
            var     sqlDataTypeOption = node.SqlDataTypeOption;
            short   length            = 0;
            bool    isMax             = false;
            byte    precision         = 0;
            byte    scale             = 0;
            string  collationName     = null;

            foreach (var parameter in parameters)
            {
                {
                    if (parameter is MaxLiteral)
                    {
                        isMax = true;
                        continue;
                    }
                }
                {
                    if (parameter is IntegerLiteral lengthLiteral)
                    {
                        short.TryParse(lengthLiteral.Value, out length);
                        continue;
                    }
                }

                // TODO: float(1,2)
                // TODO: collationName
            }
            if (sqlDataTypeOption != ModelSystemDataType.None)
            {
                // happyness
                var scalarType = new ModelSematicScalarType();
                scalarType.Name           = typename;
                scalarType.MaxLength      = (isMax) ? ((short)-1) : length;
                scalarType.Precision      = precision;
                scalarType.Scale          = scale;
                scalarType.SystemDataType = sqlDataTypeOption;
                scalarType.CollationName  = collationName;
                node.Analyse.ResultType   = new SqlCodeType(scalarType);
            }
            else
            {
                if (System.Diagnostics.Debugger.IsAttached)
                {
                    System.Diagnostics.Debugger.Break();
                }
                var resolved = this.scope.ResolveObject(typename, null);
                if (resolved != null)
                {
                    if (resolved is ModelSematicType modelType)
                    {
                        node.Analyse.ResultType = new SqlCodeType(modelType);
                    }
                }

                /*
                 * var sqlName = SqlName.Parse(name.BaseIdentifier.Value, ObjectLevel.Object);
                 * var sqlSysName = SqlName.Root.Child("sys", ObjectLevel.Schema).Child(sqlName.Name, ObjectLevel.Object);
                 * var sqlCodeType = this.currentScopeRef.Current.ResolveObject(sqlSysName, null) as ISqlCodeType;
                 * SetAnalyseSqlCodeType(node.Analyse, sqlCodeType);
                 */
            }
        }