text: ﻿/* Copyright 2015-present MongoDB Inc.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * You may obtain a copy of the License at
  *
  * http://www.apache.org/licenses/LICENSE-2.0
  *
  * Unless required by applicable law or agreed to in writing, software
  * distributed under the License is distributed on an "AS IS" BASIS,
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
  
  using System.Collections.Generic;
  using System.Linq;
  using System.Linq.Expressions;
  using System.Reflection;
  using MongoDB.Driver.Linq.Expressions;
  using MongoDB.Driver.Linq.Expressions.ResultOperators;
  
  namespace MongoDB.Driver.Linq.Processors.EmbeddedPipeline.MethodCallBinders
  {
      internal sealed class AnyBinder : IMethodCallBinder<EmbeddedPipelineBindingContext>
      {
          public static IEnumerable<MethodInfo> GetSupportedMethods()
          {
              return MethodHelper.GetEnumerableAndQueryableMethodDefinitions("Any");
          }
  
          public Expression Bind(PipelineExpression pipeline, EmbeddedPipelineBindingContext bindingContext, MethodCallExpression node, IEnumerable<Expression> arguments)
          {
              var source = pipeline.Source;
              if (arguments.Any())
              {
                  source = BinderHelper.BindWhere(
                      pipeline,
                      bindingContext,
                      ExpressionHelper.GetLambda(arguments.Single()));
              }
  
              return new PipelineExpression(
                  source,
                  pipeline.Projector,
                  new AnyResultOperator());
          }
      }
  }
  