public int GetOffset(ISymUnmanagedDocument document, int line, int column, out int offset)
{
if (line <= 0)
{
offset = 0;
return(HResult.E_INVALIDARG);
}
// Note that DiaSymReader completely ignores column parameter.
var symDocument = SymReader.AsSymDocument(document);
if (symDocument == null)
{
offset = 0;
return(HResult.E_INVALIDARG);
}
// DiaSymReader uses DiaSession::findLinesByLinenum, which results in bad results for lines shared across multiple methods
// and for lines outside of the current method.
var documentHandle = symDocument.Handle;
if (!SymReader.TryGetLineDeltas(GetId(), out var deltas))
{
deltas = default(MethodLineDeltas);
}
int sequencePointIndex = 0;
foreach (var sp in GetSequencePoints())
{
if (!sp.IsHidden && sp.Document == documentHandle)
{
int delta = deltas.GetDeltaForSequencePoint(sequencePointIndex);
if (line >= sp.StartLine + delta && line <= sp.EndLine + delta)
{
// Return the first matching IL offset. In common cases there will be a single one
// since sequence points of a single method don't overlap unless forced by #line.
offset = sp.Offset;
return(HResult.S_OK);
}
}
sequencePointIndex++;
}
offset = 0;
return(HResult.E_FAIL);
}
public int GetOffset(ISymUnmanagedDocument document, int line, int column, out int offset)
{
if (line <= 0)
{
offset = 0;
return(HResult.E_INVALIDARG);
}
// Note that DiaSymReader completely ignores column parameter.
var symDocument = SymReader.AsSymDocument(document);
if (symDocument == null)
{
offset = 0;
return(HResult.E_INVALIDARG);
}
// DiaSymReader uses DiaSession::findLinesByLinenum, which results in bad results for lines shared across multiple methods
// and for lines outside of the current method.
var spReader = GetSequencePointEnumerator();
var documentHandle = symDocument.Handle;
while (spReader.MoveNext())
{
if (!spReader.Current.IsHidden &&
spReader.Current.Document == documentHandle &&
line >= spReader.Current.StartLine &&
line <= spReader.Current.EndLine)
{
// Return the first matching IL offset. In common cases there will be a single one
// since sequence points of a single method don't overlap unless forced by #line.
offset = spReader.Current.Offset;
return(HResult.S_OK);
}
}
offset = 0;
return(HResult.E_FAIL);
}
internal int GetMethodSourceExtentInDocument(ISymUnmanagedDocument document, SymMethod method, out int startLine, out int endLine)
{
var symDocument = SymReader.AsSymDocument(document);
if (symDocument == null)
{
startLine = endLine = 0;
return(HResult.E_INVALIDARG);
}
var methodExtents = SymReader.GetMethodExtents();
if (!methodExtents.TryGetMethodSourceExtent(symDocument.GetId(), method.GetId(), out startLine, out endLine))
{
startLine = endLine = 0;
return(HResult.E_FAIL);
}
return(HResult.S_OK);
}