#region MIT license // // MIT license // // Copyright (c) 2007-2008 Jiri Moudry, Pascal Craponne // // Permission is hereby granted, free of charge, to any person obtaining a copy // of this software and associated documentation files (the "Software"), to deal // in the Software without restriction, including without limitation the rights // to use, copy, modify, merge, publish, distribute, sublicense, and/or sell // copies of the Software, and to permit persons to whom the Software is // furnished to do so, subject to the following conditions: // // The above copyright notice and this permission notice shall be included in // all copies or substantial portions of the Software. // // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE // AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER // LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, // OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN // THE SOFTWARE. // #endregion using System; using System.Collections.Generic; using System.Linq.Expressions; using DbLinq.Data.Linq.Sugar.Expressions; namespace DbLinq.Data.Linq.Sugar.ExpressionMutator.Implementation { internal class UnaryExpressionMutator : IMutableExpression { protected UnaryExpression UnaryExpression { get; private set; } public Expression Mutate(IList operands) { switch (UnaryExpression.NodeType) { case ExpressionType.ArrayLength: return Expression.ArrayLength(operands[0]); case ExpressionType.Convert: if (UnaryExpression.Method != null) return Expression.Convert(operands[0], UnaryExpression.Type, UnaryExpression.Method); return Expression.Convert(operands[0], UnaryExpression.Type); case ExpressionType.ConvertChecked: if (UnaryExpression.Method != null) return Expression.ConvertChecked(operands[0], UnaryExpression.Type, UnaryExpression.Method); return Expression.ConvertChecked(operands[0], UnaryExpression.Type); case ExpressionType.Negate: if (UnaryExpression.Method != null) return Expression.Negate(operands[0], UnaryExpression.Method); return Expression.Negate(operands[0]); case ExpressionType.NegateChecked: if (UnaryExpression.Method != null) return Expression.NegateChecked(operands[0], UnaryExpression.Method); return Expression.NegateChecked(operands[0]); case ExpressionType.Not: if (UnaryExpression.Method != null) return Expression.Not(operands[0], UnaryExpression.Method); return Expression.Not(operands[0]); case ExpressionType.Quote: return Expression.Quote(operands[0]); case ExpressionType.TypeAs: return Expression.TypeAs(operands[0], UnaryExpression.Type); case ExpressionType.UnaryPlus: if (UnaryExpression.Method != null) return Expression.UnaryPlus(operands[0], UnaryExpression.Method); return Expression.UnaryPlus(operands[0]); } throw new Exception(); } public IEnumerable Operands { get { yield return UnaryExpression.Operand; } } public UnaryExpressionMutator(UnaryExpression expression) { UnaryExpression = expression; } } }