public static object ResolvePath(BindingContext context, PathInfo pathInfo)
{
if (!pathInfo.HasValue)
{
return(null);
}
if (pathInfo.IsPureThis)
{
return(context.Value);
}
var instance = context.Value;
var throwOnUnresolvedBindingExpression = context !.Configuration.ThrowOnUnresolvedBindingExpression;
var segments = pathInfo.Segments;
for (var segmentIndex = 0; segmentIndex < segments.Length; segmentIndex++)
{
var segment = segments[segmentIndex];
if (segment.IsThis)
{
continue;
}
if (segment.IsParent)
{
context = context !.ParentContext;
if (context == null)
{
instance = UndefinedBindingResult.Create("..");
goto undefined;
}
instance = context.Value;
throwOnUnresolvedBindingExpression = context.Configuration.ThrowOnUnresolvedBindingExpression;
continue;
}
var pathChain = segment.PathChain;
if (!TryResolveValue(pathInfo.IsVariable, context, pathChain[0], instance, out instance))
{
instance = UndefinedBindingResult.Create(pathChain[0]);
goto undefined;
}
for (var index = 1; index < pathChain.Length; index++)
{
if (TryAccessMember(context, instance, pathChain[index], out instance))
{
continue;
}
instance = UndefinedBindingResult.Create(pathChain[index]);
goto undefined;
}
}
return(instance);
undefined:
if (throwOnUnresolvedBindingExpression)
{
Throw.Undefined(pathInfo, (UndefinedBindingResult)instance);
}
return(instance);
}
public static void Undefined(PathInfo pathInfo, UndefinedBindingResult undefinedBindingResult) => throw new HandlebarsUndefinedBindingException(pathInfo, undefinedBindingResult);