// We need to filter out the duplicate tag helper descriptors that come from the
// open file in the editor. We mangle the class name for its generated code, so using that here to filter these out.
internal static bool IsTagHelperFromMangledClass(TagHelperDescriptor tagHelper)
{
StringSegment className;
if (tagHelper.IsChildContentTagHelper())
{
// If this is a child content tag helper, we want to look at it's original type.
// E.g, if the type name is `Test.__generated__MyComponent.ChildContent`, we want to look at `Test.__generated__MyComponent`.
TrySplitNamespaceAndType(tagHelper, out var typeNamespace);
return(TrySplitNamespaceAndType(typeNamespace, out var _, out className) &&
ComponentMetadata.IsMangledClass(className));
}
return(TrySplitNamespaceAndType(tagHelper, out var _, out className) &&
ComponentMetadata.IsMangledClass(className));
}
// We need to filter out the duplicate tag helper descriptors that come from the
// open file in the editor. We mangle the class name for its generated code, so using that here to filter these out.
internal static bool IsTagHelperFromMangledClass(TagHelperDescriptor tagHelper)
{
var typeName = tagHelper.GetTypeName();
if (tagHelper.IsChildContentTagHelper())
{
// If this is a child content tag helper, we want to look at it's original type.
// E.g, if the type name is `Test.__generated__MyComponent.ChildContent`, we want to look at `Test.__generated__MyComponent`.
TrySplitNamespaceAndType(typeName, out var namespaceTextSpan, out var _);
typeName = GetTextSpanContent(namespaceTextSpan, typeName);
}
if (!TrySplitNamespaceAndType(typeName, out var _, out var classNameTextSpan))
{
return(false);
}
var className = GetTextSpanContent(classNameTextSpan, typeName);
return(ComponentMetadata.IsMangledClass(className));
}
public static bool IsComponentOrChildContentTagHelper(this TagHelperDescriptor tagHelper)
{
if (tagHelper == null)
{
throw new ArgumentNullException(nameof(tagHelper));
}
if (tagHelper.IsComponentTagHelper())
{
return(true);
}
if (tagHelper.IsChildContentTagHelper())
{
return(true);
}
return(false);
}
