public TypeMetric CalculateFrom(TypeDeclarationSyntaxInfo typeNode, MemberMetrics memberMetrics)
{
TypeDeclarationSyntax syntax = (TypeDeclarationSyntax)typeNode.Syntax;
TypeMetricKind metricKind = TypeMetricsCalculator.GetMetricKind(syntax);
LcomMetrics lcomMetric = this.CalculateLackOfCohesion(syntax);
TypeMetric typeMetric = new TypeMetric()
{
Name = TypeMetricsCalculator.GetDisplayName(syntax),
Kind = metricKind,
MemberMetrics = memberMetrics
};
List <MetricResult> metricResults = new List <MetricResult>();
foreach (MetricCalculator calculator in calculators)
{
typeMetric.AddMetricResult(calculator.Calculate <MemberMetrics, MemberMetric>(memberMetrics));
}
typeMetric.AddMetricResult(new MetricResult()
{
Name = MetricNames.LackOfCohesionOfMethods,
Value = lcomMetric.Lcom
});
typeMetric.AddMetricResult(new MetricResult()
{
Name = MetricNames.LackOfCohesionOfMethodsHendersonSellers,
Value = lcomMetric.LcomHendersonSellers
});
typeMetric.AddMetricResult(new MetricResult()
{
Name = MetricNames.NumberOfFields,
Value = lcomMetric.NumFields
});
typeMetric.AddMetricResult(new MetricResult()
{
Name = MetricNames.NumberOfMethods,
Value = lcomMetric.NumMethods
});
return(typeMetric);
}
public LcomMetrics Calculate(TypeDeclarationSyntax type)
{
SemanticModel semanticModel = this.model;
CancellationToken cancellationToken = new CancellationToken();
this.typeSymbol = semanticModel.GetDeclaredSymbol(type, cancellationToken);
SimpleMemberCollectorSyntaxWalker simpleMemberCollectorSyntaxWalker = new SimpleMemberCollectorSyntaxWalker();
IEnumerable <SyntaxNode> list = simpleMemberCollectorSyntaxWalker.GetMembers(this.model, type).ToList <SyntaxNode>();
this.FilterInstanceFieldDeclarations(list.OfType <FieldDeclarationSyntax>().ToList <FieldDeclarationSyntax>());
this.FilterInstanceAutoProperties(list.OfType <PropertyDeclarationSyntax>().ToList <PropertyDeclarationSyntax>());
this.Visit(type);
double num = (double)this.numFieldAccesses.Values.Sum();
int num1 = checked (this.numMethods * this.numInstanceFields);
double num2 = Math.Round(1 - num / (double)num1, 2);
if (double.IsNaN(num2) || num2 < 0)
{
num2 = 0;
}
double num3 = ((double)this.numMethods - num / (double)this.numInstanceFields) / (double)(checked (this.numMethods - 1));
num3 = Math.Round(num3, 2);
if (double.IsNaN(num3) || num2 < 0)
{
num3 = 0;
}
LcomMetrics lcomMetric = new LcomMetrics()
{
Lcom = num2,
LcomHendersonSellers = num3,
NumFields = this.numFields,
NumMethods = this.numMethods
};
return(lcomMetric);
}
