public void Handle()

in src/Core/Compiling/Policy/RateLimitCompiler.cs [18:79]
55 lines of code
10 McCabe index (conditional complexity)

    public void Handle(ICompilationContext context, InvocationExpressionSyntax node)
    {
        if (!node.TryExtractingConfigParameter<RateLimitConfig>(context, "rate-limit", out var values))
        {
            return;
        }

        var element = new XElement("rate-limit");

        if (!element.AddAttribute(values, nameof(RateLimitConfig.Calls), "calls"))
        {
            context.Report(Diagnostic.Create(
                CompilationErrors.RequiredParameterNotDefined,
                node.GetLocation(),
                "rate-limit-by-key",
                nameof(RateLimitConfig.Calls)
            ));
            return;
        }

        if (!element.AddAttribute(values, nameof(RateLimitConfig.RenewalPeriod), "renewal-period"))
        {
            context.Report(Diagnostic.Create(
                CompilationErrors.RequiredParameterNotDefined,
                node.GetLocation(),
                "rate-limit-by-key",
                nameof(RateLimitConfig.RenewalPeriod)
            ));
            return;
        }

        element.AddAttribute(values, nameof(RateLimitConfig.RetryAfterHeaderName), "retry-after-header-name");
        element.AddAttribute(values, nameof(RateLimitConfig.RetryAfterVariableName), "retry-after-variable-name");
        element.AddAttribute(values, nameof(RateLimitConfig.RemainingCallsHeaderName), "remaining-calls-header-name");
        element.AddAttribute(values, nameof(RateLimitConfig.RemainingCallsVariableName), "remaining-calls-variable-name");
        element.AddAttribute(values, nameof(RateLimitConfig.TotalCallsHeaderName), "total-calls-header-name");

        if (values.TryGetValue(nameof(RateLimitConfig.Apis), out var apis))
        {
            foreach (var api in apis.UnnamedValues!)
            {
                if(!Handle(context, "api", api, out var apiElement))
                {
                    continue;
                }
                element.Add(apiElement);

                if (api.NamedValues!.TryGetValue(nameof(ApiRateLimit.Operations), out var operations))
                {
                    foreach (var operation in operations.UnnamedValues!)
                    {
                        if(Handle(context, "operation", operation, out var operationElement))
                        {
                            apiElement.Add(operationElement);
                        }
                    }
                }
            }
        }

        context.AddPolicy(element);
    }