private static string GetMessageAndLocation(string rootContent, CXDiagnostic diagnostic, out CppSourceLocation location)
{
var builder = new StringBuilder();
builder.Append(diagnostic.ToString());
location = CppModelBuilder.GetSourceLocation(diagnostic.Location);
if (location.File == CppAstRootFileName)
{
var reader = new StringReader(rootContent);
var lines = new List <string>();
string line;
while ((line = reader.ReadLine()) != null)
{
lines.Add(line);
}
var lineIndex = location.Line - 1;
if (lineIndex < lines.Count)
{
builder.AppendLine();
builder.AppendLine(lines[lineIndex]);
for (int i = 0; i < location.Column - 1; i++)
{
builder.Append(i + 1 == location.Column - 1 ? "-" : " ");
}
builder.AppendLine("^-");
}
}
return(builder.ToString());
}
/// <summary>
/// Reparse the Translation Unit contained by this instance.
/// Updates Symbol Database
/// Places error markers on document
/// </summary>
public void ParseAndDiagnose(CancellationToken cancellationToken)
{
lock (Manager.SyncRoot) {
var unsavedFilesArray = unsavedFiles.ToArray();
TU = Manager.Reparse(FileName, unsavedFilesArray, cancellationToken);
uint numDiag = clang.getNumDiagnostics(TU);
for (uint i = 0; i < numDiag; i++)
{
CXDiagnostic diag = clang.getDiagnostic(TU, i);
string spelling = diag.ToString();
uint numRanges = clang.getDiagnosticNumRanges(diag);
if (numRanges != 0)
{
for (uint j = 0; j < numRanges; j++)
{
try {
SourceLocation begin = Manager.GetSourceLocation(clang.getRangeStart(clang.getDiagnosticRange(diag, j)));
SourceLocation end = Manager.GetSourceLocation(clang.getRangeEnd(clang.getDiagnosticRange(diag, j)));
Add(new Error(ErrorType.Error, spelling, new DocumentRegion(begin.Line, begin.Column, end.Line, end.Column)));
} catch {
//it seems sometimes "expression result unused" diagnostics appear multiple times
//for the same problem, when there is only e.g.
//an '1;' line in the code, and not every indicator has a valid filename in their location
//this crashes the thread, so we ignore it
}
}
}
else
{
try {
SourceLocation loc = Manager.GetSourceLocation(clang.getDiagnosticLocation(diag));
Add(new Error(ErrorType.Error, spelling, new DocumentRegion(loc.Line, loc.Column, loc.Line, loc.Column + 1)));
} catch {
//same goes here
}
}
clang.disposeDiagnostic(diag);
}
Manager.UpdateDatabase(FileName, TU, cancellationToken, true);
}
}