protected Expression VisitNonTranslatedMemberInit(MemberInitExpression init)
{
if (init.NewExpression.Arguments.Count > 0)
{
throw new NotSupportedException("Only parameterless constructor is supported.");
}
var memberAssignments = new List <KeyValuePair <MemberInfo, Expression> >();
var memberQueryTypes = new Dictionary <MemberInfo, SimpleType>();
//Currently only considering member assignment bindings
foreach (var binding in init.Bindings)
{
switch (binding.BindingType)
{
case MemberBindingType.Assignment:
var result = VisitWithNewVisitor((binding as MemberAssignment).Expression, AnalysisContext, false);
memberAssignments.Add(new KeyValuePair <MemberInfo, Expression>(binding.Member, result.TranslatedExpression));
memberQueryTypes.Add(binding.Member, result.QueryableType);
break;
default:
throw new NotSupportedException("Only member assignment is supported.");
}
}
var typeArgs = memberAssignments.Select(kvp => kvp.Value.Type).ToList();
var newType = AnalysisContext.TypeTranslationUtil.GetAnonymousType(typeArgs);
var nex = Expression.New(newType.GetConstructor(Type.EmptyTypes));
var nonTranslatableType = new NonTranslatableType(init.NewExpression.Type, newType,
init.NewExpression.Constructor, memberQueryTypes);
var ctr = 0;
memberAssignments.ForEach(kvp => nonTranslatableType.MemberMap.Add(kvp.Key, newType.GetProperty("Field" + (ctr++))));
var bindings = memberAssignments.Select(kvp => Expression.Bind(nonTranslatableType.MemberMap[kvp.Key], kvp.Value) as MemberBinding).ToList();
AnalysisContext.QueryableType = nonTranslatableType;
return(Expression.MemberInit(nex, bindings));
}
protected Expression VisitNonTranslatedMemberInit(MemberInitExpression init)
{
if (init.NewExpression.Arguments.Count > 0)
throw new NotSupportedException("Only parameterless constructor is supported.");
var memberAssignments = new List<KeyValuePair<MemberInfo, Expression>>();
var memberQueryTypes = new Dictionary<MemberInfo, SimpleType>();
//Currently only considering member assignment bindings
foreach(var binding in init.Bindings)
{
switch(binding.BindingType)
{
case MemberBindingType.Assignment:
var result = VisitWithNewVisitor((binding as MemberAssignment).Expression, AnalysisContext, false);
memberAssignments.Add(new KeyValuePair<MemberInfo, Expression>(binding.Member, result.TranslatedExpression));
memberQueryTypes.Add(binding.Member, result.QueryableType);
break;
default:
throw new NotSupportedException("Only member assignment is supported.");
}
}
var typeArgs = memberAssignments.Select(kvp => kvp.Value.Type).ToList();
var newType = AnalysisContext.TypeTranslationUtil.GetAnonymousType(typeArgs);
var nex = Expression.New(newType.GetConstructor(Type.EmptyTypes));
var nonTranslatableType = new NonTranslatableType(init.NewExpression.Type, newType,
init.NewExpression.Constructor, memberQueryTypes);
var ctr = 0;
memberAssignments.ForEach(kvp => nonTranslatableType.MemberMap.Add(kvp.Key, newType.GetProperty("Field" + (ctr++))));
var bindings = memberAssignments.Select(kvp => Expression.Bind(nonTranslatableType.MemberMap[kvp.Key], kvp.Value) as MemberBinding).ToList();
AnalysisContext.QueryableType = nonTranslatableType;
return Expression.MemberInit(nex, bindings);
}
