Imported Upstream version 5.0.0.42

Former-commit-id: fd56571888259555122d8a0f58c68838229cea2b

external/linker/cecil/Mono.Cecil/EventDefinition.cs

@@ -0,0 +1,155 @@
+//
+// Author:
+//   Jb Evain (jbevain@gmail.com)
+//
+// Copyright (c) 2008 - 2015 Jb Evain
+// Copyright (c) 2008 - 2011 Novell, Inc.
+//
+// Licensed under the MIT/X11 license.
+//
+
+using Mono.Collections.Generic;
+
+namespace Mono.Cecil {
+
+	public sealed class EventDefinition : EventReference, IMemberDefinition {
+
+		ushort attributes;
+
+		Collection<CustomAttribute> custom_attributes;
+
+		internal MethodDefinition add_method;
+		internal MethodDefinition invoke_method;
+		internal MethodDefinition remove_method;
+		internal Collection<MethodDefinition> other_methods;
+
+		public EventAttributes Attributes {
+			get { return (EventAttributes) attributes; }
+			set { attributes = (ushort) value; }
+		}
+
+		public MethodDefinition AddMethod {
+			get {
+				if (add_method != null)
+					return add_method;
+
+				InitializeMethods ();
+				return add_method;
+			}
+			set { add_method = value; }
+		}
+
+		public MethodDefinition InvokeMethod {
+			get {
+				if (invoke_method != null)
+					return invoke_method;
+
+				InitializeMethods ();
+				return invoke_method;
+			}
+			set { invoke_method = value; }
+		}
+
+		public MethodDefinition RemoveMethod {
+			get {
+				if (remove_method != null)
+					return remove_method;
+
+				InitializeMethods ();
+				return remove_method;
+			}
+			set { remove_method = value; }
+		}
+
+		public bool HasOtherMethods {
+			get {
+				if (other_methods != null)
+					return other_methods.Count > 0;
+
+				InitializeMethods ();
+				return !other_methods.IsNullOrEmpty ();
+			}
+		}
+
+		public Collection<MethodDefinition> OtherMethods {
+			get {
+				if (other_methods != null)
+					return other_methods;
+
+				InitializeMethods ();
+
+				if (other_methods != null)
+					return other_methods;
+
+				return other_methods = new Collection<MethodDefinition> ();
+			}
+		}
+
+		public bool HasCustomAttributes {
+			get {
+				if (custom_attributes != null)
+					return custom_attributes.Count > 0;
+
+				return this.GetHasCustomAttributes (Module);
+			}
+		}
+
+		public Collection<CustomAttribute> CustomAttributes {
+			get { return custom_attributes ?? (this.GetCustomAttributes (ref custom_attributes, Module)); }
+		}
+
+		#region EventAttributes
+
+		public bool IsSpecialName {
+			get { return attributes.GetAttributes ((ushort) EventAttributes.SpecialName); }
+			set { attributes = attributes.SetAttributes ((ushort) EventAttributes.SpecialName, value); }
+		}
+
+		public bool IsRuntimeSpecialName {
+			get { return attributes.GetAttributes ((ushort) EventAttributes.RTSpecialName); }
+			set { attributes = attributes.SetAttributes ((ushort) EventAttributes.RTSpecialName, value); }
+		}
+
+		#endregion
+
+		public new TypeDefinition DeclaringType {
+			get { return (TypeDefinition) base.DeclaringType; }
+			set { base.DeclaringType = value; }
+		}
+
+		public override bool IsDefinition {
+			get { return true; }
+		}
+
+		public EventDefinition (string name, EventAttributes attributes, TypeReference eventType)
+			: base (name, eventType)
+		{
+			this.attributes = (ushort) attributes;
+			this.token = new MetadataToken (TokenType.Event);
+		}
+
+		void InitializeMethods ()
+		{
+			var module = this.Module;
+			if (module == null)
+				return;
+
+			lock (module.SyncRoot) {
+				if (add_method != null
+					|| invoke_method != null
+					|| remove_method != null)
+					return;
+
+				if (!module.HasImage ())
+					return;
+
+				module.Read (this, (@event, reader) => reader.ReadMethods (@event));
+			}
+		}
+
+		public override EventDefinition Resolve ()
+		{
+			return this;
+		}
+	}
+}