// public static methods
public static AstFilter Translate(TranslationContext context, MethodCallExpression expression)
{
var method = expression.Method;
var arguments = expression.Arguments;
if (method.Is(LinqExtensionsMethod.Inject))
{
var filterExpression = arguments[0];
var filterDefinition = filterExpression.GetConstantValue <object>(expression);
var filterDefinitionType = filterDefinition.GetType(); // we KNOW it's a FilterDefinition<TDocument> because of the Inject method signature
var documentType = filterDefinitionType.GetGenericArguments()[0];
var serializerRegistry = BsonSerializer.SerializerRegistry;
var documentSerializer = serializerRegistry.GetSerializer(documentType); // TODO: is this the right serializer?
var renderMethodArgumentTypes = new[]
{
typeof(IBsonSerializer <>).MakeGenericType(documentType),
typeof(IBsonSerializerRegistry),
typeof(LinqProvider)
};
var renderMethod = filterDefinitionType.GetMethod("Render", renderMethodArgumentTypes);
var renderedFilter = (BsonDocument)renderMethod.Invoke(filterDefinition, new object[] { documentSerializer, serializerRegistry, LinqProvider.V3 });
return(AstFilter.Raw(renderedFilter));
}
throw new ExpressionNotSupportedException(expression);
}