public static LambdaExpression MakeLambda(Expression expression, TranslatorContext context)
{
var tupleParameter = Expression.Parameter(typeof(Tuple), "tuple");
var visitor = new ExpressionMaterializer(tupleParameter, context, null, EnumerableUtils <Parameter <Tuple> > .Empty);
var processedExpression = OwnerRemover.RemoveOwner(expression);
return(FastExpression.Lambda(visitor.Visit(processedExpression), tupleParameter));
}
public static MaterializationInfo MakeMaterialization(ItemProjectorExpression projector, TranslatorContext context,
IEnumerable <Parameter <Tuple> > tupleParameters)
{
var tupleParameter = Expression.Parameter(typeof(Tuple), "tuple");
var materializationContextParameter = Expression.Parameter(typeof(ItemMaterializationContext), "mc");
var visitor = new ExpressionMaterializer(tupleParameter, context, materializationContextParameter, tupleParameters);
var lambda = FastExpression.Lambda(visitor.Visit(projector.Item), tupleParameter, materializationContextParameter);
var count = visitor.entityRegistry.Count;
return(new MaterializationInfo(count, lambda));
}
