public override void VisitRazorDirective(RazorDirectiveSyntax node)
{
var descendantLiterals = node.DescendantNodes();
foreach (var child in descendantLiterals)
{
if (child is not CSharpStatementLiteralSyntax literal)
{
continue;
}
var context = literal.GetSpanContext();
if (context == null)
{
// We can't find a chunk generator.
continue;
}
else if (context.ChunkGenerator is AddTagHelperChunkGenerator addTagHelper)
{
// Make sure this node exists in the file we're parsing and not in its imports.
if (_filePath.Equals(_source.FilePath, StringComparison.Ordinal))
{
addTagHelper.Diagnostics.Add(
ComponentDiagnosticFactory.Create_UnsupportedTagHelperDirective(node.GetSourceSpan(_source)));
}
}
else if (context.ChunkGenerator is RemoveTagHelperChunkGenerator removeTagHelper)
{
// Make sure this node exists in the file we're parsing and not in its imports.
if (_filePath.Equals(_source.FilePath, StringComparison.Ordinal))
{
removeTagHelper.Diagnostics.Add(
ComponentDiagnosticFactory.Create_UnsupportedTagHelperDirective(node.GetSourceSpan(_source)));
}
}
else if (context.ChunkGenerator is TagHelperPrefixDirectiveChunkGenerator tagHelperPrefix)
{
// Make sure this node exists in the file we're parsing and not in its imports.
if (_filePath.Equals(_source.FilePath, StringComparison.Ordinal))
{
tagHelperPrefix.Diagnostics.Add(
ComponentDiagnosticFactory.Create_UnsupportedTagHelperDirective(node.GetSourceSpan(_source)));
}
}
else if (context.ChunkGenerator is AddImportChunkGenerator usingStatement && !usingStatement.IsStatic)
{
// Get the namespace from the using statement.
var @namespace = usingStatement.ParsedNamespace;
if (@namespace.IndexOf('=') != -1)
{
// We don't support usings with alias.
continue;
}
for (var i = 0; _notFullyQualifiedComponents is not null && i < _notFullyQualifiedComponents.Count; i++)
{
var tagHelper = _notFullyQualifiedComponents[i];
Debug.Assert(!tagHelper.IsComponentFullyQualifiedNameMatch(), "We've already processed these.");
if (tagHelper.IsChildContentTagHelper())
{
// If this is a child content tag helper, we want to add it if it's original type is in scope of the given namespace.
// E.g, if the type name is `Test.MyComponent.ChildContent`, we want to add it if `Test.MyComponent` is in this namespace.
TrySplitNamespaceAndType(tagHelper, out var typeName);
if (!typeName.IsEmpty && IsTypeInNamespace(typeName, @namespace))
{
Matches.Add(tagHelper);
}
}
else if (IsTypeInNamespace(tagHelper, @namespace))
{
// If the type is at the top-level or if the type's namespace matches the using's namespace, add it.
Matches.Add(tagHelper);
}
}
}
}
}
public override void VisitRazorDirective(RazorDirectiveSyntax node)
{
var descendantLiterals = node.DescendantNodes();
foreach (var child in descendantLiterals)
{
if (!(child is CSharpStatementLiteralSyntax literal))
{
continue;
}
var context = literal.GetSpanContext();
if (context == null)
{
// We can't find a chunk generator.
continue;
}
else if (context.ChunkGenerator is AddTagHelperChunkGenerator addTagHelper)
{
if (addTagHelper.AssemblyName == null)
{
// Skip this one, it's an error
continue;
}
if (!AssemblyContainsTagHelpers(addTagHelper.AssemblyName, _tagHelpers))
{
// No tag helpers in the assembly.
continue;
}
for (var i = 0; i < _tagHelpers.Count; i++)
{
var tagHelper = _tagHelpers[i];
if (MatchesDirective(tagHelper, addTagHelper.TypePattern, addTagHelper.AssemblyName))
{
Matches.Add(tagHelper);
}
}
}
else if (context.ChunkGenerator is RemoveTagHelperChunkGenerator removeTagHelper)
{
if (removeTagHelper.AssemblyName == null)
{
// Skip this one, it's an error
continue;
}
if (!AssemblyContainsTagHelpers(removeTagHelper.AssemblyName, _tagHelpers))
{
// No tag helpers in the assembly.
continue;
}
for (var i = 0; i < _tagHelpers.Count; i++)
{
var tagHelper = _tagHelpers[i];
if (MatchesDirective(tagHelper, removeTagHelper.TypePattern, removeTagHelper.AssemblyName))
{
Matches.Remove(tagHelper);
}
}
}
else if (context.ChunkGenerator is TagHelperPrefixDirectiveChunkGenerator tagHelperPrefix)
{
if (!string.IsNullOrEmpty(tagHelperPrefix.DirectiveText))
{
// We only expect to see a single one of these per file, but that's enforced at another level.
_tagHelperPrefix = tagHelperPrefix.DirectiveText;
}
}
}
}
