public void IsViewComponent_GenericViewComponent_ReturnsFalse()
{
// Arrange
var testVisitor = new ViewComponentTypeVisitor(
TestViewComponentAttributeSymbol,
TestNonViewComponentAttributeSymbol,
new List <INamedTypeSymbol>());
var tagHelperSymbol = Compilation.GetTypeByMetadataName(typeof(Invalid_GenericViewComponent <>).FullName);
// Act
var isViewComponent = testVisitor.IsViewComponent(tagHelperSymbol);
// Assert
Assert.False(isViewComponent);
}
public void IsViewComponent_DecoratedViewComponent_ReturnsTrue()
{
// Arrange
var testVisitor = new ViewComponentTypeVisitor(
TestViewComponentAttributeSymbol,
TestNonViewComponentAttributeSymbol,
new List <INamedTypeSymbol>());
var tagHelperSymbol = Compilation.GetTypeByMetadataName(typeof(Valid_DecoratedVC).FullName);
// Act
var isViewComponent = testVisitor.IsViewComponent(tagHelperSymbol);
// Assert
Assert.True(isViewComponent);
}
public void Execute(TagHelperDescriptorProviderContext context)
{
if (context == null)
{
throw new ArgumentNullException(nameof(context));
}
var compilation = context.GetCompilation();
if (compilation == null)
{
// No compilation, nothing to do.
return;
}
var types = new List <INamedTypeSymbol>();
var visitor = ViewComponentTypeVisitor.Create(compilation, types);
if (ForceEnabled)
{
visitor.Enabled = true;
}
// We always visit the global namespace.
visitor.Visit(compilation.Assembly.GlobalNamespace);
foreach (var reference in compilation.References)
{
if (compilation.GetAssemblyOrModuleSymbol(reference) is IAssemblySymbol assembly)
{
if (IsTagHelperAssembly(assembly))
{
visitor.Visit(assembly.GlobalNamespace);
}
}
}
var factory = new ViewComponentTagHelperDescriptorFactory(compilation);
for (var i = 0; i < types.Count; i++)
{
context.Results.Add(factory.CreateDescriptor(types[i]));
}
}
public void Execute(TagHelperDescriptorProviderContext context)
{
if (context == null)
{
throw new ArgumentNullException(nameof(context));
}
var compilation = context.GetCompilation();
if (compilation == null)
{
// No compilation, nothing to do.
return;
}
var vcAttribute = compilation.GetTypeByMetadataName(ViewComponentTypes.ViewComponentAttribute);
var nonVCAttribute = compilation.GetTypeByMetadataName(ViewComponentTypes.NonViewComponentAttribute);
if (vcAttribute == null || vcAttribute.TypeKind == TypeKind.Error)
{
// Could not find attributes we care about in the compilation. Nothing to do.
return;
}
var types = new List <INamedTypeSymbol>();
var visitor = new ViewComponentTypeVisitor(vcAttribute, nonVCAttribute, types);
var targetReference = context.Items.GetTargetMetadataReference();
if (targetReference is not null)
{
if (compilation.GetAssemblyOrModuleSymbol(targetReference) is IAssemblySymbol targetAssembly && IsTagHelperAssembly(targetAssembly))
{
visitor.Visit(targetAssembly.GlobalNamespace);
}
}
else
{
visitor.Visit(compilation.Assembly.GlobalNamespace);
foreach (var reference in compilation.References)
{
if (compilation.GetAssemblyOrModuleSymbol(reference) is IAssemblySymbol assembly)
{
if (IsTagHelperAssembly(assembly))
{
visitor.Visit(assembly.GlobalNamespace);
}
}
}
}
var factory = new ViewComponentTagHelperDescriptorFactory(compilation);
for (var i = 0; i < types.Count; i++)
{
var descriptor = factory.CreateDescriptor(types[i]);
if (descriptor != null)
{
context.Results.Add(descriptor);
}
}
}
