private static async Task <Document> RemoveRegionAsync(Document document, RegionDirectiveTriviaSyntax regionDirective, EndRegionDirectiveTriviaSyntax endRegionDirective, CancellationToken cancellationToken)
{
SourceText sourceText = await document.GetTextAsync(cancellationToken).ConfigureAwait(false);
int startLine = regionDirective.GetSpanStartLine();
int endLine = endRegionDirective.GetSpanEndLine();
TextLineCollection lines = sourceText.Lines;
TextSpan span = TextSpan.FromBounds(
lines[startLine].Start,
lines[endLine].EndIncludingLineBreak);
var textChange = new TextChange(span, "");
SourceText newSourceText = sourceText.WithChanges(textChange);
return(document.WithText(newSourceText));
}
public static async Task <Document> RemoveRegionAsync(
Document document,
RegionDirectiveTriviaSyntax regionDirective,
CancellationToken cancellationToken = default(CancellationToken))
{
if (document == null)
{
throw new ArgumentNullException(nameof(document));
}
if (regionDirective == null)
{
throw new ArgumentNullException(nameof(regionDirective));
}
List <DirectiveTriviaSyntax> list = regionDirective.GetRelatedDirectives();
if (list.Count == 2 &&
list[1].IsKind(SyntaxKind.EndRegionDirectiveTrivia))
{
var endRegionDirective = (EndRegionDirectiveTriviaSyntax)list[1];
SourceText sourceText = await document.GetTextAsync(cancellationToken).ConfigureAwait(false);
int startLine = regionDirective.GetSpanStartLine();
int endLine = endRegionDirective.GetSpanEndLine();
TextLineCollection lines = sourceText.Lines;
TextSpan span = TextSpan.FromBounds(
lines[startLine].Start,
lines[endLine].EndIncludingLineBreak);
var textChange = new TextChange(span, string.Empty);
SourceText newSourceText = sourceText.WithChanges(textChange);
return(document.WithText(newSourceText));
}
return(document);
}