Ejemplo n.º 1
0
		protected override SequenceConvertInfo Convert(
			ExpressionBuilder builder, MethodCallExpression methodCall, BuildInfo buildInfo, ParameterExpression param)
		{
			var predicate = (LambdaExpression)methodCall.Arguments[1].Unwrap();
			var info      = builder.ConvertSequence(new BuildInfo(buildInfo, methodCall.Arguments[0]), predicate.Parameters[0]);

			if (info != null)
			{
				info.Expression = methodCall.Convert(ex => ConvertMethod(methodCall, 0, info, predicate.Parameters[0], ex));

				if (param != null)
				{
					if (param.Type != info.Parameter.Type)
						param = Expression.Parameter(info.Parameter.Type, param.Name);

					if (info.ExpressionsToReplace != null)
						foreach (var path in info.ExpressionsToReplace)
						{
							path.Path = path.Path.Convert(e => e == info.Parameter ? param : e);
							path.Expr = path.Expr.Convert(e => e == info.Parameter ? param : e);
						}
				}

				info.Parameter = param;

				return info;
			}

			return null;
		}