using AngleSharp.Attributes; using System; using System.Collections.Generic; using System.Diagnostics; using System.Reflection; namespace AngleSharp.Extensions { [DebuggerStepThrough] internal static class ObjectExtensions { public static Dictionary<string, T> ToDictionary<T>(this object values, Func<object, T> converter) { Dictionary<string, T> dictionary = new Dictionary<string, T>(); if (values != null) { PropertyInfo[] properties = PortableExtensions.GetProperties(values.GetType()); PropertyInfo[] array = properties; foreach (PropertyInfo propertyInfo in array) { object arg = propertyInfo.GetValue(values, null) ?? string.Empty; dictionary.Add(propertyInfo.Name, converter(arg)); } } return dictionary; } public static Dictionary<string, object> ToDictionary(this object values) { return values.ToDictionary((object m) => m); } public static T? TryGet<T>(this IDictionary<string, object> values, string key) where T : struct { if (values.TryGetValue(key, out object value) && value is T) return (T)value; return null; } public static object TryGet(this IDictionary<string, object> values, string key) { if (values.TryGetValue(key, out object value)) return value; return null; } public static U GetOrDefault<T, U>(this IDictionary<T, U> values, T key, U defaultValue) { if (!values.TryGetValue(key, out U value)) return defaultValue; return value; } public static double Constraint(this double value, double min, double max) { if (!(value < min)) { if (!(value > max)) return value; return max; } return min; } public static string GetMessage<T>(this T code) where T : struct { DomDescriptionAttribute customAttribute = typeof(T).GetTypeInfo().GetDeclaredField(code.ToString()).GetCustomAttribute<DomDescriptionAttribute>(); if (customAttribute != null) return customAttribute.Description; return "An unknown error occurred."; } } }