public static RazorSyntaxTree Rewrite(RazorSyntaxTree syntaxTree, string tagHelperPrefix, IEnumerable <TagHelperDescriptor> descriptors)
{
var errorSink = new ErrorSink();
syntaxTree = MarkupElementRewriter.AddMarkupElements(syntaxTree);
var rewriter = new Rewriter(
syntaxTree.Source,
tagHelperPrefix,
descriptors,
syntaxTree.Options.FeatureFlags,
errorSink);
var rewritten = rewriter.Visit(syntaxTree.Root);
var errorList = new List <RazorDiagnostic>();
errorList.AddRange(errorSink.Errors);
errorList.AddRange(descriptors.SelectMany(d => d.GetAllDiagnostics()));
var diagnostics = CombineErrors(syntaxTree.Diagnostics, errorList).OrderBy(error => error.Span.AbsoluteIndex);
var newSyntaxTree = RazorSyntaxTree.Create(rewritten, syntaxTree.Source, diagnostics, syntaxTree.Options);
newSyntaxTree = MarkupElementRewriter.RemoveMarkupElements(newSyntaxTree);
return(newSyntaxTree);
}
private void RewriterTest(string input)
{
var syntaxTree = ParseDocument(input, designTime: false);
var rewritten = MarkupElementRewriter.AddMarkupElements(syntaxTree);
BaselineTest(rewritten);
var unrewritten = MarkupElementRewriter.RemoveMarkupElements(rewritten);
Assert.Equal(syntaxTree.Root.SerializedValue, unrewritten.Root.SerializedValue);
}
