protected internal virtual MixinEntityExpression VisitMixinEntity(MixinEntityExpression me)
{
var bindings = Visit(me.Bindings, VisitFieldBinding);
if (me.Bindings != bindings)
{
return(new MixinEntityExpression(me.Type, bindings, me.MainEntityAlias, me.FieldMixin));
}
return(me);
}
protected internal override MixinEntityExpression VisitMixinEntity(MixinEntityExpression me)
{
var bindings = VisitBindings(me.Bindings);
if (me.Bindings != bindings || me.EntityContext != null)
{
return(new MixinEntityExpression(me.Type, bindings, me.MainEntityAlias, me.FieldMixin, null));
}
return(me);
}
protected internal virtual MixinEntityExpression VisitMixinEntity(MixinEntityExpression me)
{
var bindings = Visit(me.Bindings, VisitFieldBinding);
var entityContext = me.EntityContext == null ? null : VisitEntityContextInfo(me.EntityContext);
if (me.Bindings != bindings || me.EntityContext != entityContext)
{
return(new MixinEntityExpression(me.Type, bindings, me.MainEntityAlias, me.FieldMixin, entityContext));
}
return(me);
}
BlockExpression AssignMixin(ParameterExpression e, MixinEntityExpression m)
{
var mixParam = Expression.Parameter(m.Type);
var mixBindings = new List <Expression>();
mixBindings.Add(Expression.Assign(mixParam, Expression.Call(e, MixinDeclarations.miMixin.MakeGenericMethod(m.Type))));
mixBindings.Add(Expression.Call(retriever, miModifiablePostRetrieving.MakeGenericMethod(m.Type), mixParam));
mixBindings.AddRange(m.Bindings.Select(b =>
{
var field = Expression.Field(mixParam, b.FieldInfo);
var value = b.Binding is ChildProjectionExpression ?
VisitMListChildProjection((ChildProjectionExpression)b.Binding, field) :
Convert(Visit(b.Binding), b.FieldInfo.FieldType);
return((Expression)Expression.Assign(field, value));
}));
return(Expression.Block(new[] { mixParam }, mixBindings));
}
protected virtual bool CompareMixinFieldInit(MixinEntityExpression a, MixinEntityExpression b)
{
return(a.FieldMixin == b.FieldMixin &&
CompareList(a.Bindings, b.Bindings, CompareFieldBinding));
}
protected internal override MixinEntityExpression VisitMixinEntity(MixinEntityExpression me)
{
throw new InvalidOperationException("Impossible to retrieve MixinEntity {0} without their main entity".FormatWith(me.Type.Name));
}
protected virtual MixinEntityExpression VisitMixinEntity(MixinEntityExpression me)
{
var bindings = me.Bindings.NewIfChange(VisitFieldBinding);
if (me.Bindings != bindings)
{
return new MixinEntityExpression(me.Type, bindings, me.FieldMixin);
}
return me;
}
