public override Task <TextEditContainer?> Handle(DocumentFormattingParams request, CancellationToken cancellationToken)
{
CompilationContext?context = this.compilationManager.GetCompilation(request.TextDocument.Uri);
if (context == null)
{
// we have not yet compiled this document, which shouldn't really happen
this.logger.LogError("Document formatting request arrived before file {Uri} could be compiled.", request.TextDocument.Uri);
return(Task.FromResult <TextEditContainer?>(null));
}
long indentSize = request.Options.TabSize;
IndentKindOption indentKindOption = request.Options.InsertSpaces ? IndentKindOption.Space : IndentKindOption.Tab;
bool insertFinalNewline = request.Options.ContainsKey("insertFinalNewline") && request.Options.InsertFinalNewline;
ProgramSyntax programSyntax = context.ProgramSyntax;
PrettyPrintOptions options = new PrettyPrintOptions(NewlineOption.Auto, indentKindOption, indentSize, insertFinalNewline);
string?output = PrettyPrinter.PrintProgram(programSyntax, options);
if (output == null)
{
return(Task.FromResult <TextEditContainer?>(null));
}
return(Task.FromResult <TextEditContainer?>(new TextEditContainer(new TextEdit
{
Range = programSyntax.Span.ToRange(context.LineStarts),
NewText = output
})));
}
public PrettyPrintOptions(
NewlineOption newlineOption,
IndentKindOption indentKindOption,
long indentSize,
bool insertFinalNewLine)
{
this.NewlineOption = newlineOption;
this.IndentKindOption = indentKindOption;
this.IndentSize = (int)Math.Min(MaxIndentSize, Math.Max(MinIndentSize, indentSize));
this.InsertFinalNewline = insertFinalNewLine;
}