internal static SyntaxNode Update(MethodDeclarationSyntax method, string before, string after)
{
if (!Cache.TryDequeue(out var rewriter))
{
rewriter = new ReplaceRewriter();
}
rewriter.before = before;
rewriter.after = after;
var updated = rewriter.Visit(method);
Cache.Enqueue(rewriter);
return(updated);
}
public override async Task RegisterCodeFixesAsync(CodeFixContext context)
{
var syntaxRoot = await context.Document.GetSyntaxRootAsync(context.CancellationToken)
.ConfigureAwait(false);
foreach (var diagnostic in context.Diagnostics)
{
if (syntaxRoot.TryFindNodeOrAncestor(diagnostic, out MethodDeclarationSyntax? methodDeclaration) &&
diagnostic.Properties.TryGetValue("before", out var before) &&
diagnostic.Properties.TryGetValue("after", out var after))
{
context.RegisterCodeFix(
CodeAction.Create(
$"Replace {before} with {after}",
_ => Task.FromResult(
context.Document.WithSyntaxRoot(
syntaxRoot.ReplaceNode(
methodDeclaration,
ReplaceRewriter.Update(methodDeclaration, before, after)))),
nameof(StandardNamesFix)),
diagnostic);
}
}
}
