static FormattingChanges GetFormattingChanges(PolicyContainer policyParent, IEnumerable <string> mimeTypeChain, MonoDevelop.Ide.Gui.Document document, string input, DomRegion formattingRegion, ref int formatStartOffset, ref int formatLength, bool formatLastStatementOnly)
{
using (var stubData = TextEditorData.CreateImmutable(input)) {
stubData.Document.FileName = document.FileName;
var parser = document.HasProject ? new PlayScriptParser(TypeSystemParser.GetCompilerArguments(document.Project)) : new PlayScriptParser();
var compilationUnit = parser.Parse(stubData);
bool hadErrors = parser.HasErrors;
if (hadErrors)
{
using (var stubData2 = TextEditorData.CreateImmutable(input + "}")) {
compilationUnit = parser.Parse(stubData2);
hadErrors = parser.HasErrors;
}
}
// try it out, if the behavior is better when working only with correct code.
if (hadErrors)
{
return(null);
}
var policy = policyParent.Get <PlayScriptFormattingPolicy> (mimeTypeChain);
var formattingVisitor = new ICSharpCode.NRefactory.PlayScript.CSharpFormatter(policy.CreateOptions(), document.Editor.CreateNRefactoryTextEditorOptions());
formattingVisitor.FormattingMode = FormattingMode.Intrusive;
formattingVisitor.AddFormattingRegion(formattingRegion);
var changes = formattingVisitor.AnalyzeFormatting(stubData.Document, compilationUnit);
if (formatLastStatementOnly)
{
AstNode node = compilationUnit.GetAdjacentNodeAt <Statement> (stubData.OffsetToLocation(formatStartOffset + formatLength - 1));
if (node != null)
{
while (node.Role == Roles.EmbeddedStatement || node.Role == IfElseStatement.TrueRole || node.Role == IfElseStatement.FalseRole)
{
node = node.Parent;
}
// include indentation if node starts in new line
var formatNode = node.GetPrevNode();
if (formatNode.Role != Roles.NewLine)
{
formatNode = node;
}
var start = stubData.LocationToOffset(formatNode.StartLocation);
if (start > formatStartOffset)
{
var end = stubData.LocationToOffset(node.EndLocation);
formatStartOffset = start;
formatLength = end - start;
}
}
}
return(changes);
}
}
public FormattingVisitor(CSharpFormatter formatter, IDocument document, FormattingChanges changes, CancellationToken token)
{
if (formatter == null)
{
throw new ArgumentNullException("formatter");
}
if (document == null)
{
throw new ArgumentNullException("document");
}
if (changes == null)
{
throw new ArgumentNullException("changes");
}
this.formatter = formatter;
this.changes = changes;
this.document = document;
this.token = token;
curIndent = new Indent(formatter.TextEditorOptions);
}
public string FormatText(PlayScriptFormattingPolicy policy, TextStylePolicy textPolicy, string mimeType, string input, int startOffset, int endOffset)
{
var data = new TextEditorData();
data.Document.SuppressHighlightUpdate = true;
data.Document.MimeType = mimeType;
data.Document.FileName = "toformat.cs";
if (textPolicy != null)
{
data.Options.TabsToSpaces = textPolicy.TabsToSpaces;
data.Options.TabSize = textPolicy.TabWidth;
data.Options.IndentationSize = textPolicy.IndentWidth;
data.Options.IndentStyle = textPolicy.RemoveTrailingWhitespace ? IndentStyle.Virtual : IndentStyle.Smart;
}
data.Text = input;
// System.Console.WriteLine ("-----");
// System.Console.WriteLine (data.Text.Replace (" ", ".").Replace ("\t", "->"));
// System.Console.WriteLine ("-----");
var parser = new PlayScriptParser();
var compilationUnit = parser.Parse(data);
bool hadErrors = parser.HasErrors;
if (hadErrors)
{
// foreach (var e in parser.ErrorReportPrinter.Errors)
// Console.WriteLine (e.Message);
return(input.Substring(startOffset, Math.Max(0, Math.Min(endOffset, input.Length) - startOffset)));
}
var originalVersion = data.Document.Version;
var textEditorOptions = data.CreateNRefactoryTextEditorOptions();
var formattingVisitor = new ICSharpCode.NRefactory.PlayScript.CSharpFormatter(
policy.CreateOptions(),
textEditorOptions
)
{
FormattingMode = FormattingMode.Intrusive
};
var changes = formattingVisitor.AnalyzeFormatting(data.Document, compilationUnit);
try {
changes.ApplyChanges(startOffset, endOffset - startOffset);
} catch (Exception e) {
LoggingService.LogError("Error in code formatter", e);
return(input.Substring(startOffset, Math.Max(0, Math.Min(endOffset, input.Length) - startOffset)));
}
// check if the formatter has produced errors
parser = new PlayScriptParser();
parser.Parse(data);
if (parser.HasErrors)
{
LoggingService.LogError("C# formatter produced source code errors. See console for output.");
return(input.Substring(startOffset, Math.Max(0, Math.Min(endOffset, input.Length) - startOffset)));
}
var currentVersion = data.Document.Version;
string result = data.GetTextBetween(startOffset, originalVersion.MoveOffsetTo(currentVersion, endOffset, ICSharpCode.NRefactory.Editor.AnchorMovementType.Default));
data.Dispose();
return(result);
}