private void AnalyzeInvocation(SyntaxNodeAnalysisContext context, TypeSizeResolver resolver)
{
var semantics = context.SemanticModel;
var @params =
(context.Node as MethodDeclarationSyntax)?.ParameterList.Parameters
?? (context.Node as ConstructorDeclarationSyntax)?.ParameterList.Parameters
?? (context.Node as DelegateDeclarationSyntax)?.ParameterList.Parameters
?? (context.Node as LocalFunctionStatementSyntax)?.ParameterList.Parameters;
foreach (var param in @params !)
{
var symbol = semantics.GetDeclaredSymbol(param);
if (symbol is null)
{
throw new Exception("null param symbol. not sure what to do here to be honest. :(");
}
var advantageousToPassByRef = resolver.AdvantageousToPassByRef(symbol);
var contextSymbol = semantics.GetDeclaredSymbol(context.Node) !;
if (CanModifyMethod(contextSymbol) && advantageousToPassByRef)
{
context.ReportDiagnostic(Diagnostic.Create(Rule, param.GetLocation()));
}
}
