sean-m
/
Vanara
mirror of https://github.com/dahall/Vanara.git
1
0
Fork 0
Code Issues Releases Wiki Activity

Simplified and extended GetCorrespondingTypes methods

pull/83/head
David Hall 2019-07-24 12:55:23 -06:00
parent 7e3c01e597
commit b4dde29d90
1 changed files with 24 additions and 5 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

29
Core/InteropServices/CorrespondingTypeAttribute.cs
View File

@ -115,15 +115,34 @@ namespace Vanara.InteropServices
public static bool CanSet(Type type, Type typeRef) => GetAttrForType(type).Any(a => a.Action.IsFlagSet(CorrespondingAction.Set) && a.TypeRef == typeRef);
/// <summary>Gets the corresponding types for the supplied enumeration value.</summary>
/// <param name="enumValue">The enumeration value or class.</param>
/// <param name="enumValue">The class or structure instance.</param>
/// <returns>The types defined by the attribute.</returns>
public static IEnumerable<Type> GetCorrespondingTypes(object enumValue) => GetAttrForObj(enumValue).Select(a => a.TypeRef);
/// <summary>Gets the corresponding types for the supplied enumeration value.</summary>
/// <param name="type">The enumeration value or class.</param>
/// <param name="enumValue">The enumeration value.</param>
/// <returns>The types defined by the attribute.</returns>
public static IEnumerable<Type> GetCorrespondingTypes<TEnum>(TEnum enumValue) where TEnum : System.Enum => GetAttrForEnum(enumValue).Select(a => a.TypeRef);
/// <summary>Gets the corresponding types for the supplied enumeration value.</summary>
/// <param name="enumValue">The enumeration value.</param>
/// <param name="action">The action to filter for.</param>
/// <returns>The types defined by the attribute.</returns>
public static IEnumerable<Type> GetCorrespondingTypes<TEnum>(TEnum enumValue, CorrespondingAction action) where TEnum : System.Enum => GetAttrForEnum(enumValue, action).Select(a => a.TypeRef);
/// <summary>Gets the corresponding types for the supplied enumeration value.</summary>
/// <param name="type">The class type.</param>
/// <returns>The types defined by the attribute.</returns>
public static IEnumerable<Type> GetCorrespondingTypes(Type type) => GetAttrForType(type).Select(a => a.TypeRef);
/// <summary>Gets the CorrespondingTypeAttribute instances associated with an enum value.</summary>
/// <typeparam name="TEnum">The type of the enum.</typeparam>
/// <param name="value">The enum value.</param>
/// <param name="action">The action to filter for.</param>
/// <returns>An enumeration of all associated CorrespondingTypeAttribute instances.</returns>
protected static IEnumerable<CorrespondingTypeAttribute> GetAttrForEnum<TEnum>(TEnum value, CorrespondingAction action) where TEnum : System.Enum =>
GetAttrForEnum(value).Where(a => a.Action == action);
/// <summary>Gets the CorrespondingTypeAttribute instances associated with an enum value.</summary>
/// <param name="value">The enum value.</param>
/// <returns>An enumeration of all associated CorrespondingTypeAttribute instances.</returns>
@ -136,15 +155,15 @@ namespace Vanara.InteropServices
return attr;
}
/// <summary>Gets the CorrespondingTypeAttribute instances associated with an enum value.</summary>
/// <param name="value">The enum value.</param>
/// <summary>Gets the CorrespondingTypeAttribute instances associated with an enum value or class instance.</summary>
/// <param name="value">The enum value or class instance.</param>
/// <returns>An enumeration of all associated CorrespondingTypeAttribute instances.</returns>
protected static IEnumerable<CorrespondingTypeAttribute> GetAttrForObj(object value)
{
if (value is null) throw new ArgumentNullException(nameof(value));
var valueType = value.GetType();
if (!valueType.IsEnum && !valueType.IsClass) throw new ArgumentException("Value must be an enumeration or class value.", nameof(value));
var attr = (valueType.IsEnum ? valueType.GetField(value.ToString()).GetCustomAttributes<CorrespondingTypeAttribute>() : valueType.GetCustomAttributes<CorrespondingTypeAttribute>());
var attr = valueType.IsEnum ? valueType.GetField(value.ToString()).GetCustomAttributes<CorrespondingTypeAttribute>() : valueType.GetCustomAttributes<CorrespondingTypeAttribute>();
if (!attr.Any()) return new CorrespondingTypeAttribute[0];
if (attr.Any(a => a.Action == CorrespondingAction.Exception)) throw new Exception();
return attr;