private static void ValidateBinding(
TagHelperBinding bindingResult,
string tagName,
Block tagBlock,
ErrorSink errorSink)
{
// Ensure that all descriptors associated with this tag have appropriate TagStructures. Cannot have
// multiple descriptors that expect different TagStructures (other than TagStructure.Unspecified).
TagHelperDescriptor baseDescriptor = null;
TagStructure? baseStructure = null;
foreach (var descriptor in bindingResult.Descriptors)
{
var boundRules = bindingResult.GetBoundRules(descriptor);
foreach (var rule in boundRules)
{
if (rule.TagStructure != TagStructure.Unspecified)
{
// Can't have a set of TagHelpers that expect different structures.
if (baseStructure.HasValue && baseStructure != rule.TagStructure)
{
errorSink.OnError(
tagBlock.Start,
LegacyResources.FormatTagHelperParseTreeRewriter_InconsistentTagStructure(
baseDescriptor.DisplayName,
descriptor.DisplayName,
tagName,
nameof(TagMatchingRuleDescriptor.TagStructure)),
tagBlock.Length);
}
baseDescriptor = descriptor;
baseStructure = rule.TagStructure;
}
}
}
}
