public static Attribute CreateDirect()

in src/Microsoft.Azure.WebJobs.Host/Bindings/AttributeConverter.cs [16:86]
57 lines of code
10 McCabe index (conditional complexity)

        public static Attribute CreateDirect(Type attributeType, JObject properties)
        {
            Type t = attributeType;

            ConstructorInfo bestCtor = null;
            int longestMatch = -1;
            object[] ctorArgs = null;

            // Pick the ctor with the longest parameter list where all parameters are matched.
            var ctors = t.GetConstructors(BindingFlags.Public | BindingFlags.Instance);
            foreach (var ctor in ctors)
            {
                var ps = ctor.GetParameters();
                int len = ps.Length;

                List<object> possibleCtorArgs = new List<object>();

                bool hasAllParameters = true;
                for (int i = 0; i < len; i++)
                {
                    var p = ps[i];

                    JToken token;
                    if (!properties.TryGetValue(p.Name, StringComparison.OrdinalIgnoreCase, out token))
                    {
                        // Missing a parameter for this ctor; try the next one. 
                        hasAllParameters = false;
                        break;
                    }
                    else
                    {
                        var obj = ApplyNameResolver(token, p.ParameterType);
                        possibleCtorArgs.Add(obj);
                    }
                }

                if (hasAllParameters)
                {
                    if (len > longestMatch)
                    {
                        bestCtor = ctor;
                        ctorArgs = possibleCtorArgs.ToArray();
                        longestMatch = len;
                    }
                }
            }

            if (bestCtor == null)
            {
                // error!!!
                throw new InvalidOperationException("Can't figure out which ctor to call.");
            }

            // Apply writeable properties. 
            var newAttr = (Attribute)bestCtor.Invoke(ctorArgs);

            foreach (var prop in t.GetProperties(BindingFlags.Instance | BindingFlags.Public))
            {
                if (prop.CanWrite)
                {
                    JToken token;
                    if (properties.TryGetValue(prop.Name, StringComparison.OrdinalIgnoreCase, out token))
                    {
                        var obj = ApplyNameResolver(token, prop.PropertyType);
                        prop.SetValue(newAttr, obj);
                    }
                }
            }

            return newAttr;
        }