protected void CheckComplexity <TSyntax>(SyntaxNodeAnalysisContext context, Func <TSyntax, SyntaxNode> nodeSelector,
Func <TSyntax, Location> getLocationToReport, string declarationType, int threshold)
where TSyntax : SyntaxNode
{
var syntax = (TSyntax)context.Node;
var nodeToAnalyze = nodeSelector(syntax);
if (nodeToAnalyze == null)
{
return;
}
var cognitiveWalker = new CognitiveComplexityWalker();
cognitiveWalker.Walk(nodeToAnalyze);
cognitiveWalker.EnsureVisitEndedCorrectly();
if (cognitiveWalker.Complexity > Threshold)
{
context.ReportDiagnosticWhenActive(Diagnostic.Create(rule, getLocationToReport(syntax),
cognitiveWalker.IncrementLocations.ToAdditionalLocations(),
cognitiveWalker.IncrementLocations.ToProperties(),
new object[] { declarationType, cognitiveWalker.Complexity, threshold }));
}
}
public override int GetCognitiveComplexity(SyntaxNode node)
{
var walker = new CognitiveComplexityWalker();
walker.Visit(node);
return(walker.VisitEndedCorrectly ? walker.Complexity : -1);
}
protected void CheckComplexity <TSyntax>(SyntaxNodeAnalysisContext context,
Func <TSyntax, Location> getLocationToReport, string declarationType, int threshold)
where TSyntax : SyntaxNode
{
var syntax = (TSyntax)context.Node;
var cognitiveWalker = new CognitiveComplexityWalker();
cognitiveWalker.Visit(syntax);
if (cognitiveWalker.NestingLevel != 0)
{
throw new Exception($"There is a problem with the cognitive complexity walker. Expecting ending nesting to be '0' got '{cognitiveWalker.NestingLevel}'");
}
if (cognitiveWalker.Complexity > Threshold)
{
context.ReportDiagnostic(Diagnostic.Create(SupportedDiagnostics.First(), getLocationToReport(syntax),
cognitiveWalker.Flow.Select(x => x.Location),
CreatePropertiesFromCognitiveTrace(cognitiveWalker.Flow),
new object[] { declarationType, cognitiveWalker.Complexity, threshold }));
}
}