private static void CheckInvocationInsideMethod(SyntaxNodeAnalysisContext context,
IMethodSymbol methodSymbol)
{
var invocation = (InvocationExpressionSyntax)context.Node;
var invokedMethod = context.SemanticModel.GetSymbolInfo(invocation).Symbol as IMethodSymbol;
if (invokedMethod == null ||
invokedMethod.Name != methodSymbol.Name)
{
return;
}
var memberAccess = invocation.Expression as MemberAccessExpressionSyntax;
var baseCall = memberAccess?.Expression as BaseExpressionSyntax;
if (baseCall == null)
{
return;
}
var objectType = invokedMethod.ContainingType;
if (objectType != null &&
!objectType.Is(KnownType.System_Object) &&
GetHashCodeEqualsOverride.IsEqualsCallInGuardCondition(invocation, invokedMethod))
{
context.ReportDiagnosticWhenActive(Diagnostic.Create(rule, invocation.GetLocation()));
}
}
protected sealed override void Initialize(SonarAnalysisContext context)
{
context.RegisterCodeBlockStartActionInNonGenerated <SyntaxKind>(
cb =>
{
var methodDeclaration = cb.CodeBlock as MethodDeclarationSyntax;
if (methodDeclaration == null)
{
return;
}
var methodSymbol = cb.OwningSymbol as IMethodSymbol;
if (methodSymbol == null ||
!GetHashCodeEqualsOverride.MethodIsRelevant(methodSymbol, MethodNames))
{
return;
}
cb.RegisterSyntaxNodeAction(
c =>
{
CheckInvocationInsideMethod(c, methodSymbol);
},
SyntaxKind.InvocationExpression);
});
}