protected override void Initialize(SonarAnalysisContext context)
{
context.RegisterSyntaxNodeActionInNonGenerated(
c =>
{
var typeDeclaration = (TypeDeclarationSyntax)c.Node;
if (typeDeclaration.Modifiers.Any(SyntaxKind.PartialKeyword))
{
return;
}
var privateFields = GetPrivateFields(c.SemanticModel, typeDeclaration);
var collector = new FieldAccessCollector(c.SemanticModel, privateFields);
if (!collector.SafeVisit(typeDeclaration))
{
// We couldn't finish the exploration so we cannot take any decision
return;
}
privateFields.Keys
.Where(collector.IsRemovableField)
.Select(CreateDiagnostic)
.ToList()
.ForEach(d => c.ReportDiagnosticWhenActive(d));
Diagnostic CreateDiagnostic(IFieldSymbol fieldSymbol) =>
Diagnostic.Create(rule, privateFields[fieldSymbol].GetLocation(), fieldSymbol.Name);
},
SyntaxKind.ClassDeclaration,
SyntaxKind.StructDeclaration);
}
public void Analyze()
{
this.Log.LogMessage(
"FieldAccessObserver",
"begin");
int framesCount = 0;
int framesHandled = 0;
int maxLevelCount = 16;
for (int level = 0; level < maxLevelCount; level++)
{
FieldAccessCollector controller = new FieldAccessCollector(this, level);
using (IEngine trackingEngine = this.PathServices.TrackingEngineFactory.CreateTrackingEngine(controller)
)
{
IPexTrackingDriver driver = trackingEngine.GetService <IPexTrackingDriver>();
if (!driver.Run())
{
break;
}
}
framesCount = SafeMath.Max(framesCount, controller.FramesCount);
framesHandled += controller.FramesHandled;
if (framesHandled > framesCount)
{
framesHandled = framesCount;
}
this.Log.LogMessage(
"FieldAccessObserver",
"collecting data, {0:P} of all frames up to level {1} / {2}",
((double)framesHandled / framesCount), level, maxLevelCount);
if (controller.FramesHandled == 0 || // did we make any progress?
framesHandled >= framesCount) // or have we processed all frames there are?
{
break;
}
}
this.Log.LogMessage(
"FieldAccessObserver",
"end");
}
