protected virtual LambdaExpression ClassMap()
{
DetermineAssignments();
var input = CurrentJob.InputParameter;
var output = CurrentJob.OutputParameter;
_ = Expression.Label(CurrentJob.Output, "_return");
var nullCheck = Expression.NotEqual(input, Expression.Constant(null, input.Type));
var ctorResolver = GetConstructorResolver();
var ctor = CurrentJob.GetConstructor(ctorResolver);
var newInstance = Expression.Assign(output, Expression.Coalesce(output, ctor));
Expression body;
if (Tracking.ContainsKey(CurrentJob.Input) && Tracking[CurrentJob.Input])
{
body = GetCacheBlock(newInstance, nullCheck);
}
else
{
body = Expression.Block(
Expression.IfThen(nullCheck, Expression.Block(new Expression[] { newInstance }.Concat(CurrentJob.GetAssignments()))),
output
);
}
return(Expression.Lambda(body, input, output, CurrentJob.CacheParameter));
}