Imported Upstream version 4.6.0.125

Former-commit-id: a2155e9bd80020e49e72e86c44da02a8ac0e57a4

mcs/class/referencesource/System.Data.Entity/System/Data/Metadata/Edm/EnumMember.cs

@@ -0,0 +1,118 @@
+//---------------------------------------------------------------------
+// <copyright file="EnumMember.cs" company="Microsoft">
+//      Copyright (c) Microsoft Corporation.  All rights reserved.
+// </copyright>
+//
+// @owner       [....]
+// @backupOwner [....]
+//---------------------------------------------------------------------
+
+using System;
+using System.Collections.Generic;
+using System.Data.Common;
+using System.Text;
+using System.Diagnostics;
+
+namespace System.Data.Metadata.Edm
+{
+    /// <summary>
+    /// Represents an enumeration member.
+    /// </summary>
+    public sealed class EnumMember : MetadataItem
+    {
+        #region Fields
+
+        /// <summary>
+        /// The name of this enumeration member.
+        /// </summary>
+        private readonly string _name;
+
+        /// <summary>
+        /// The value of this enumeration member.
+        /// </summary>
+        private readonly object _value;
+
+        #endregion
+
+        #region Constructors
+
+        /// <summary>
+        /// Initializes a new instance of the <see cref="EnumMember"/> type by using the specified name and value.
+        /// </summary>
+        /// <param name="name">The name of this enumeration member. Must not be null or the empty string.</param>
+        /// <param name="value">The value of this enumeration member. </param>
+        /// <exception cref="System.ArgumentNullException">Thrown if name argument is null</exception>
+        /// <exception cref="System.ArgumentException">Thrown if name argument is empty string</exception>
+        internal EnumMember(string name, object value)
+            : base(MetadataFlags.Readonly)
+        {
+            EntityUtil.CheckStringArgument(name, "name");
+            Debug.Assert(value != null, "value != null");
+            Debug.Assert(value is SByte || value is Byte || value is Int16 || value is Int32 || value is Int64, "Unsupported type of enum member value.");
+
+            _name = name;
+            _value = value;
+        }
+
+        #endregion
+
+        #region Properties
+
+        /// <summary>
+        /// Gets the kind of this type.
+        /// </summary>
+        public override BuiltInTypeKind BuiltInTypeKind 
+        { 
+            get { return BuiltInTypeKind.EnumMember; } 
+        }
+
+        /// <summary>
+        /// Gets the name of this enumeration member.
+        /// </summary>
+        [MetadataProperty(PrimitiveTypeKind.String, false)]
+        public string Name
+        {
+            get
+            {
+                return _name;
+            }
+        }
+
+        /// <summary>
+        /// Gets the value of this enumeration member.
+        /// </summary>
+        [MetadataProperty(BuiltInTypeKind.PrimitiveType, false)]
+        public object Value
+        {
+            get
+            {
+                return _value;
+            }
+        }
+
+        /// <summary>
+        /// Gets the identity for this item as a string
+        /// </summary>
+        internal override string Identity
+        {
+            get
+            {
+                return Name;
+            }
+        }
+
+        #endregion
+
+        #region Methods
+
+        /// <summary>
+        /// Overriding System.Object.ToString to provide better String representation for this type.
+        /// </summary>
+        public override string ToString()
+        {
+            return Name;
+        }
+
+        #endregion
+    }
+}