private static bool TryGetRequiredAttributeDescriptors(
string requiredAttributes,
ErrorSink errorSink,
out IEnumerable<TagHelperRequiredAttributeDescriptor> descriptors)
{
var parser = new RequiredAttributeParser(requiredAttributes);
return parser.TryParse(errorSink, out descriptors);
}
private void AddTagMatchingRules(INamedTypeSymbol type, TagHelperDescriptorBuilder descriptorBuilder)
{
var targetElementAttributes = type
.GetAttributes()
.Where(attribute => SymbolEqualityComparer.Default.Equals(attribute.AttributeClass, _htmlTargetElementAttributeSymbol));
// If there isn't an attribute specifying the tag name derive it from the name
if (!targetElementAttributes.Any())
{
var name = type.Name;
if (name.EndsWith(TagHelperNameEnding, StringComparison.OrdinalIgnoreCase))
{
name = name.Substring(0, name.Length - TagHelperNameEnding.Length);
}
descriptorBuilder.TagMatchingRule(ruleBuilder =>
{
var htmlCasedName = HtmlConventions.ToHtmlCase(name);
ruleBuilder.TagName = htmlCasedName;
});
return;
}
foreach (var targetElementAttribute in targetElementAttributes)
{
descriptorBuilder.TagMatchingRule(ruleBuilder =>
{
var tagName = HtmlTargetElementAttribute_Tag(targetElementAttribute);
ruleBuilder.TagName = tagName;
var parentTag = HtmlTargetElementAttribute_ParentTag(targetElementAttribute);
ruleBuilder.ParentTag = parentTag;
var tagStructure = HtmlTargetElementAttribute_TagStructure(targetElementAttribute);
ruleBuilder.TagStructure = tagStructure;
var requiredAttributeString = HtmlTargetElementAttribute_Attributes(targetElementAttribute);
RequiredAttributeParser.AddRequiredAttributes(requiredAttributeString, ruleBuilder);
});
}
}
