public ValueAccessor(InputParam @param)
{
this.Param = @param;
}
public ValueAccessorChain(InputParam modelParam, Scope scope, ValuePath valuePath)
{
Boolean empty = (valuePath.Fragments.Length == 0);
if (empty)
{
IsBroken = true;
return;
}
List <ValueAccessor> accessors = new List <ValueAccessor>();
Int32 fragIndex = 0;
ValuePathFragment frag = valuePath.Fragments[fragIndex];
LocalBuilder local = scope.ResolveLocal(frag.Literal);
if (local != null)
{
accessors.Add(new ValueAccessor(local));
fragIndex++;
}
else
{
EachScope eachScope = (EachScope)scope.GetClosestScope(CompilerScopeType.Each, true);
if (eachScope != null)
{
accessors.Add(new ValueAccessor(eachScope.LocThis));
}
else
{
accessors.Add(new ValueAccessor(modelParam));
}
}
for (; fragIndex < valuePath.Fragments.Length && !IsBroken; fragIndex++)
{
frag = valuePath.Fragments[fragIndex];
ValueAccessor lastAccessor = accessors.Last();
switch (frag.Type)
{
case ValuePathFragmentType.Name:
MemberInfo member = lastAccessor.ResultType.GetMember(frag.Literal, MemberTypes.Property | MemberTypes.Field, BindingFlags.Public | BindingFlags.Instance).FirstOrDefault();
if (member != null)
{
accessors.Add(new ValueAccessor(member));
}
else
{
IsBroken = true;
}
break;
case ValuePathFragmentType.StringIndexer:
PropertyInfo strIndexer = lastAccessor.ResultType.GetProperty("Item", BindingFlags.Public | BindingFlags.Instance, null, null, new[] { typeof(String) }, null);
if (strIndexer != null)
{
accessors.Add(new ValueAccessor(strIndexer, frag.Literal, strIndexer.PropertyType));
}
else
{
IsBroken = true;
}
break;
case ValuePathFragmentType.IntegerIndexer:
if (lastAccessor.ResultType.IsArray)
{
accessors.Add(new ValueAccessor(null, Int32.Parse(frag.Literal), lastAccessor.ResultType.GetElementType()));
}
else
{
PropertyInfo intIndexer = lastAccessor.ResultType.GetProperty("Item", BindingFlags.Public | BindingFlags.Instance, null, null, new[] { typeof(Int32) }, null);
if (intIndexer != null)
{
accessors.Add(new ValueAccessor(intIndexer, Int32.Parse(frag.Literal), intIndexer.PropertyType));
}
else
{
IsBroken = true;
}
}
break;
}
}
this.Accessors = accessors.ToArray();
}
