1 #region MIT license 2 // 3 // MIT license 4 // 5 // Copyright (c) 2007-2008 Jiri Moudry, Pascal Craponne 6 // 7 // Permission is hereby granted, free of charge, to any person obtaining a copy 8 // of this software and associated documentation files (the "Software"), to deal 9 // in the Software without restriction, including without limitation the rights 10 // to use, copy, modify, merge, publish, distribute, sublicense, and/or sell 11 // copies of the Software, and to permit persons to whom the Software is 12 // furnished to do so, subject to the following conditions: 13 // 14 // The above copyright notice and this permission notice shall be included in 15 // all copies or substantial portions of the Software. 16 // 17 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 18 // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 19 // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE 20 // AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 21 // LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 22 // OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN 23 // THE SOFTWARE. 24 // 25 #endregion 26 27 using System; 28 using System.Diagnostics; 29 using System.Linq.Expressions; 30 31 using DbLinq.Data.Linq.Sugar.Expressions; 32 33 namespace DbLinq.Data.Linq.Sugar.Expressions 34 { 35 [DebuggerDisplay("ObjectInputParameterExpression")] 36 #if !MONO_STRICT 37 public 38 #endif 39 class ObjectInputParameterExpression : MutableExpression 40 { 41 public const ExpressionType ExpressionType = (ExpressionType)CustomExpressionType.ObjectInputParameter; 42 43 public string Alias { get; private set; } 44 public Type ValueType { get; private set; } 45 46 private readonly Delegate getValueDelegate; 47 /// <summary> 48 /// Returns the outer parameter value 49 /// </summary> 50 /// <returns></returns> GetValue(object o)51 public object GetValue(object o) 52 { 53 return getValueDelegate.DynamicInvoke(o); 54 } 55 ObjectInputParameterExpression(LambdaExpression lambda, Type valueType, string alias)56 public ObjectInputParameterExpression(LambdaExpression lambda, Type valueType, string alias) 57 : base(ExpressionType, lambda.Type) 58 { 59 if (lambda.Parameters.Count != 1) 60 throw Error.BadArgument("S0055: Lambda must take 1 argument"); 61 getValueDelegate = lambda.Compile(); 62 Alias = alias; 63 ValueType = valueType; 64 } 65 } 66 } 67