public override async Task RegisterCodeFixesAsync(CodeFixContext context)
{
SyntaxNode root = await context.GetSyntaxRootAsync().ConfigureAwait(false);
if (!TryFindFirstAncestorOrSelf(root, context.Span, out SyntaxNode node, predicate: f => f.IsKind(SyntaxKind.ThrowStatement, SyntaxKind.ThrowExpression)))
{
return;
}
foreach (Diagnostic diagnostic in context.Diagnostics)
{
switch (diagnostic.Id)
{
case DiagnosticIdentifiers.AddExceptionToDocumentationComment:
{
switch (node.Kind())
{
case SyntaxKind.ThrowStatement:
{
CodeAction codeAction = CodeAction.Create(
"Add exception to documentation comment",
ct => AddExceptionElementToDocumentationCommentRefactoring.RefactorAsync(context.Document, (ThrowStatementSyntax)node, ct),
GetEquivalenceKey(diagnostic));
context.RegisterCodeFix(codeAction, diagnostic);
break;
}
case SyntaxKind.ThrowExpression:
{
CodeAction codeAction = CodeAction.Create(
"Add exception to documentation comment",
ct => AddExceptionElementToDocumentationCommentRefactoring.RefactorAsync(context.Document, (ThrowExpressionSyntax)node, ct),
GetEquivalenceKey(diagnostic));
context.RegisterCodeFix(codeAction, diagnostic);
break;
}
}
break;
}
}
}
}
public static async Task ComputeRefactoringAsync(RefactoringContext context, ThrowStatementSyntax throwStatement)
{
if (context.IsRefactoringEnabled(RefactoringDescriptors.AddExceptionElementToDocumentationComment) &&
context.Span.IsContainedInSpanOrBetweenSpans(throwStatement))
{
SemanticModel semanticModel = await context.GetSemanticModelAsync().ConfigureAwait(false);
AddExceptionToDocumentationCommentAnalysisResult analysis = AddExceptionToDocumentationCommentAnalysis.Analyze(
throwStatement,
semanticModel.GetTypeByMetadataName("System.Exception"),
semanticModel,
context.CancellationToken);
if (analysis.Success)
{
context.RegisterRefactoring(
"Add 'exception' element to documentation comment",
ct => AddExceptionElementToDocumentationCommentRefactoring.RefactorAsync(context.Document, analysis, ct),
RefactoringDescriptors.AddExceptionElementToDocumentationComment);
}
}
}