105 lines
6.6 KiB
C#
105 lines
6.6 KiB
C#
/*
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BSD 3-Clause License
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Copyright (c) 2017, B. Wofter
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All rights reserved.
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Redistribution and use in source and binary forms, with or without
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modification, are permitted provided that the following conditions are met:
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* Redistributions of source code must retain the above copyright notice, this
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list of conditions and the following disclaimer.
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* Redistributions in binary form must reproduce the above copyright notice,
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this list of conditions and the following disclaimer in the documentation
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and/or other materials provided with the distribution.
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* Neither the name of the copyright holder nor the names of its
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contributors may be used to endorse or promote products derived from
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this software without specific prior written permission.
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
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FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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namespace BWofter.Converters.Expressions
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{
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using System;
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using System.Data;
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using System.Linq.Expressions;
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using System.Reflection;
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public abstract class DataExpression : Expression
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{
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public override bool CanReduce => true;
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public override ExpressionType NodeType => ExpressionType.Extension;
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protected static readonly Type objectType = typeof(object);
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protected static readonly Type boolType = typeof(bool);
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protected static readonly Type typeType = typeof(Type);
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protected static readonly Type typeInfoType = typeof(TypeInfo);
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protected static readonly Type dataColumnType = typeof(DataColumn);
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protected static readonly Type dataTableType = typeof(DataTable);
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protected static readonly Type dataRowType = typeof(DataRow);
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protected static readonly Type intType = typeof(int);
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protected static readonly Type stringType = typeof(string);
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protected static readonly Type dataSetType = typeof(DataSet);
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protected static readonly Type convertType = typeof(Convert);
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public static IsAssignableFromExpression IsAssignableFrom(Type target, Type other) =>
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new IsAssignableFromExpression(Constant(target), Constant(other));
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public static IsAssignableFromExpression IsAssignableFrom(Expression other, Type target) =>
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new IsAssignableFromExpression(Constant(target), other);
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public static IsAssignableFromExpression IsAssignableFrom(Expression target, Expression other) =>
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new IsAssignableFromExpression(target, other);
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public static DataColumnExpression DataColumn(Expression dataTable, int columnNumber) =>
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new DataColumnExpression(dataTable, Constant(columnNumber));
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public static DataColumnExpression DataColumn(Expression dataTable, string columnName) =>
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new DataColumnExpression(dataTable, Constant(columnName));
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public static DataColumnExpression DataColumn(Expression dataTable, Expression columnName) =>
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new DataColumnExpression(dataTable, columnName);
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public static DataTableExpression DataTable(Expression dataMember, int tableNumber) =>
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new DataTableExpression(dataMember, Constant(tableNumber));
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public static DataTableExpression DataTable(Expression dataMember, string tableName) =>
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new DataTableExpression(dataMember, Constant(tableName));
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public static DataTableExpression DataTable(Expression dataMember, string tableName, string tableNamespace) =>
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new DataTableExpression(dataMember, Constant(tableName), Constant(tableNamespace));
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public static DataTableExpression DataTable(Expression dataMember, Expression tableName, string tableNamespace) =>
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new DataTableExpression(dataMember, tableName, Constant(tableNamespace));
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public static DataTableExpression DataTable(Expression dataMember, Expression tableName = null, Expression tableNamespace = null) =>
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new DataTableExpression(dataMember, tableName, tableNamespace);
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public static DataTypeExpression DataType(Expression dataColumn) =>
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new DataTypeExpression(dataColumn);
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public static DataFieldExpression DataField(Expression dataRow, int columnNumber) =>
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new DataFieldExpression(dataRow, DataColumn(DataTable(dataRow), columnNumber));
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public static DataFieldExpression DataField(Expression dataRow, string columnName) =>
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new DataFieldExpression(dataRow, DataColumn(DataTable(dataRow), columnName));
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public static DataFieldExpression DataField(Expression dataRow, Expression dataColumn) =>
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new DataFieldExpression(dataRow, dataColumn);
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public static TypeIsAssignExpression TypeIsAssign(Expression left, ParameterExpression right) =>
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new TypeIsAssignExpression(left, right, right.Type);
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public static TypeIsAssignExpression TypeIsAssign(Expression left, Expression right, Type type) =>
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new TypeIsAssignExpression(left, right, type);
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public static TryParseExpression TryParse(Expression inParameter, ParameterExpression outParameter) =>
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new TryParseExpression(inParameter, outParameter, outParameter.Type);
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public static TryParseExpression TryParse(Expression inParameter, Expression outParameter, Type type) =>
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new TryParseExpression(inParameter, outParameter, type);
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public static ChangeTypeExpression ChangeType(Expression operand, Type type) =>
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new ChangeTypeExpression(operand, type);
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public static DataFieldIsNullExpression DataFieldIsNull(Expression dataRow, int columnNumber) =>
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new DataFieldIsNullExpression(dataRow, DataColumn(DataTable(dataRow), columnNumber));
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public static DataFieldIsNullExpression DataFieldIsNull(Expression dataRow, string columnName) =>
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new DataFieldIsNullExpression(dataRow, DataColumn(DataTable(dataRow), columnName));
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public static DataFieldIsNullExpression DataFieldIsNull(Expression dataRow, Expression dataColumn) =>
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new DataFieldIsNullExpression(dataRow, dataColumn);
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public override abstract Expression Reduce();
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}
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}
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