public void AnalyzeMethod(SyntaxNodeAnalysisContext obj)
{
MethodDeclarationSyntax methodDeclarationSyntax = (MethodDeclarationSyntax)obj.Node;
SyntaxNode body = methodDeclarationSyntax.Body;
if (body == null)
{
return;
}
if (_exceptions.Contains(methodDeclarationSyntax.Identifier.ValueText))
{
return;
}
RollingTokenSet rollingTokenSet = new RollingTokenSet(_duplicateTokenThreshold);
foreach (SyntaxToken token in body.DescendantTokens())
{
// For every set of token_count contiguous tokens, create a hash and add it to a dictionary with some evidence.
(int hash, Evidence evidence) = rollingTokenSet.Add(new TokenInfo(token));
if (rollingTokenSet.IsFull())
{
Evidence existingEvidence = _library.TryAdd(hash, evidence);
if (existingEvidence != null)
{
Location location = evidence.LocationEnvelope.Contents();
Location existingEvidenceLocation = existingEvidence.LocationEnvelope.Contents();
// We found a duplicate, but if it's partially duplicated with itself, ignore it.
if (!location.SourceSpan.IntersectsWith(existingEvidenceLocation.SourceSpan))
{
string reference = ToPrettyReference(existingEvidenceLocation.GetLineSpan());
_diagnostics.Add(Diagnostic.Create(Rule, location, new List <Location>()
{
existingEvidenceLocation
}, reference));
if (_generateExceptionsFile)
{
File.AppendAllText(@"DuplicateCode.Allowed.GENERATED.txt", methodDeclarationSyntax.Identifier.ValueText + Environment.NewLine);
}
// Don't pile on. Move on to the next method.
return;
}
// Don't pile on. Move on to the next method.
return;
}
}
}
}
public void AnalyzeMethod(SyntaxNodeAnalysisContext obj)
{
try
{
MethodDeclarationSyntax methodDeclarationSyntax = (MethodDeclarationSyntax)obj.Node;
SyntaxNode body = methodDeclarationSyntax.Body;
if (body == null)
{
return;
}
if (_exceptions.Contains(methodDeclarationSyntax.Identifier.ValueText))
{
return;
}
RollingTokenSet rollingTokenSet = new RollingTokenSet(_duplicateTokenThreshold);
foreach (SyntaxToken token in body.DescendantTokens())
{
GetShapeDetails(token);
// For every set of token_count contiguous tokens, create a hash and add it to a dictionary with some evidence.
(int hash, Evidence evidence) = rollingTokenSet.Add(new TokenInfo(token));
if (rollingTokenSet.IsFull())
{
Evidence existingEvidence = _library.TryAdd(hash, evidence);
if (existingEvidence != null)
{
Location location = evidence.LocationEnvelope.Contents();
Location existingEvidenceLocation = existingEvidence.LocationEnvelope.Contents();
// We found a duplicate, but if it's partially duplicated with itself, ignore it.
if (!location.SourceSpan.IntersectsWith(existingEvidenceLocation.SourceSpan))
{
string shapeDetails = GetShapeDetails(token);
string reference = ToPrettyReference(existingEvidenceLocation.GetLineSpan());
_diagnostics.Add(Diagnostic.Create(Rule, location, new List <Location>()
{
existingEvidenceLocation
}, reference, shapeDetails));
if (_generateExceptionsFile)
{
File.AppendAllText(@"DuplicateCode.Allowed.GENERATED.txt", methodDeclarationSyntax.Identifier.ValueText + Environment.NewLine);
}
// Don't pile on. Move on to the next method.
return;
}
// Don't pile on. Move on to the next method.
return;
}
}
}
}
catch (Exception ex)
{
string result = string.Empty;
string[] lines = ex.StackTrace.Split(new char[] { ':' }, StringSplitOptions.RemoveEmptyEntries);
foreach (string line in lines)
{
if (line.StartsWith("line") && line.Length >= 8)
{
result += line.Substring(0, 8);
result += " ";
}
}
if (string.IsNullOrWhiteSpace(result))
{
result = ex.StackTrace.Replace(Environment.NewLine, " ## ");
}
_diagnostics.Add(Diagnostic.Create(UnhandledExceptionRule, obj.Node.GetLocation(), result, ex.Message));
}
}