internal void SetDataObject(object data)
{
if (data == null)
{
return;
}
if (!ObjectDescriptor.TryCreate(data.GetType(), out var objectDescriptor))
{
throw new HandlebarsRuntimeException($"Cannot resolve object descriptor for type `{data.GetType()}`");
}
var objectAccessor = new ObjectAccessor(data, objectDescriptor);
foreach (var property in objectAccessor.Properties)
{
var value = objectAccessor[property];
if (property.WellKnownVariable == WellKnownVariable.None)
{
ContextDataObject.AddOrReplace(property, value, out _);
}
else
{
ContextDataObject.AddOrReplace(property, value, out WellKnownVariables[(int)property.WellKnownVariable]);
}
}
}
public static void Iterate(
BindingContext context,
EncodedTextWriter writer,
ChainSegment[] blockParamsVariables,
object target,
TemplateDelegate template,
TemplateDelegate ifEmpty)
{
if (!HandlebarsUtils.IsTruthy(target))
{
using var frame = context.CreateFrame(context.Value);
ifEmpty(writer, frame);
return;
}
if (!ObjectDescriptor.TryCreate(target, out var descriptor))
{
throw new HandlebarsRuntimeException($"Cannot create ObjectDescriptor for type {descriptor.DescribedType}");
}
if (descriptor.Iterator == null)
{
throw new HandlebarsRuntimeException($"Type {descriptor.DescribedType} does not support iteration");
}
descriptor.Iterator.Iterate(writer, context, blockParamsVariables, target, template, ifEmpty);
}
internal static bool TryAccessMember(object instance, ChainSegment chainSegment, ICompiledHandlebarsConfiguration configuration, out object value)
{
if (instance == null)
{
value = UndefinedBindingResult.Create(chainSegment);
return(false);
}
chainSegment = ResolveMemberName(instance, chainSegment, configuration);
value = null;
return(ObjectDescriptor.TryCreate(instance, configuration, out var descriptor) &&
descriptor.MemberAccessor.TryGetValue(instance, chainSegment, out value));
}
