public override void VisitTagHelperProperty(TagHelperPropertyIntermediateNode node)
{
// Each 'tag helper property' belongs to a specific tag helper. We want to handle
// the cases for components, but leave others alone. This allows our other passes
// to handle those cases.
if (!node.TagHelper.IsComponentTagHelper())
{
_children.Add(node);
return;
}
// Another special case here - this might be a type argument. These don't represent 'real' parameters
// that get passed to the component, it needs special code generation support.
if (node.TagHelper.IsGenericTypedComponent() && node.BoundAttribute.IsTypeParameterProperty())
{
_children.Add(new ComponentTypeArgumentIntermediateNode(node));
return;
}
// Another special case here -- this might be a 'Context' parameter, which specifies the name
// for lambda parameter for parameterized child content
if (node.BoundAttribute.IsChildContentParameterNameProperty())
{
// Check for each child content with a parameter name, that the parameter name is specified
// with literal text. For instance, the following is not allowed and should generate a diagnostic.
//
// <MyComponent Context="@Foo()">...</MyComponent>
if (TryGetAttributeStringContent(node, out var parameterName))
{
_component.ChildContentParameterName = parameterName;
return;
}
// The parameter name is invalid.
_component.Diagnostics.Add(ComponentDiagnosticFactory.Create_ChildContentHasInvalidParameterOnComponent(node.Source, node.AttributeName, _component.TagName));
return;
}
_children.Add(new ComponentAttributeIntermediateNode(node));
}
