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Viewing changes to Mono.Addins.CecilReflector/Mono.Cecil/Mono.Cecil/EventDefinition.cs

  • Committer: Bazaar Package Importer
  • Author(s): Jo Shields
  • Date: 2011-04-25 11:11:33 UTC
  • mfrom: (4.1.5 sid)
  • Revision ID: james.westby@ubuntu.com-20110425111133-t05u5p7o5fxx70fu
Tags: 0.6-2
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Mono.Addins.CecilReflector/Mono.Cecil/Mono.Cecil/EventDefinition.cs
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// Author:
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//   Jb Evain (jbevain@gmail.com)
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//
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// (C) 2005 Jb Evain
 
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// Copyright (c) 2008 - 2010 Jb Evain
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//
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// Permission is hereby granted, free of charge, to any person obtaining
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// a copy of this software and associated documentation files (the
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// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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//
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using Mono.Collections.Generic;
 
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namespace Mono.Cecil {
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        public sealed class EventDefinition : EventReference, IMemberDefinition, ICustomAttributeProvider {
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                EventAttributes m_attributes;
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                CustomAttributeCollection m_customAttrs;
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                MethodDefinition m_addMeth;
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                MethodDefinition m_invMeth;
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                MethodDefinition m_remMeth;
 
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        public sealed class EventDefinition : EventReference, IMemberDefinition {
 
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                ushort attributes;
 
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                Collection<CustomAttribute> custom_attributes;
 
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                internal MethodDefinition add_method;
 
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                internal MethodDefinition invoke_method;
 
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                internal MethodDefinition remove_method;
 
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                internal Collection<MethodDefinition> other_methods;
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                public EventAttributes Attributes {
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                        get { return m_attributes; }
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                        set { m_attributes = value; }
 
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                        get { return (EventAttributes) attributes; }
 
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                        set { attributes = (ushort) value; }
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                }
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                public MethodDefinition AddMethod {
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                        get { return m_addMeth; }
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                        set { m_addMeth = value; }
 
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                        get {
 
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                                if (add_method != null)
 
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                                        return add_method;
 
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                                InitializeMethods ();
 
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                                return add_method;
 
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                        }
 
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                        set { add_method = value; }
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                }
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                public MethodDefinition InvokeMethod {
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                        get { return m_invMeth; }
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                        set { m_invMeth = value; }
 
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                        get {
 
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                                if (invoke_method != null)
 
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                                        return invoke_method;
 
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                                InitializeMethods ();
 
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                                return invoke_method;
 
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                        }
 
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                        set { invoke_method = value; }
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                }
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                public MethodDefinition RemoveMethod {
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                        get { return m_remMeth; }
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                        set { m_remMeth = value; }
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                }
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                public CustomAttributeCollection CustomAttributes {
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                        get {
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                                if (m_customAttrs == null)
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                                        m_customAttrs = new CustomAttributeCollection (this);
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                                return m_customAttrs;
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                        }
 
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                        get {
 
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                                if (remove_method != null)
 
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                                        return remove_method;
 
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                                InitializeMethods ();
 
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                                return remove_method;
 
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                        }
 
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                        set { remove_method = value; }
 
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                }
 
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                public bool HasOtherMethods {
 
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                        get {
 
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                                if (other_methods != null)
 
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                                        return other_methods.Count > 0;
 
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                                InitializeMethods ();
 
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                                return !other_methods.IsNullOrEmpty ();
 
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                        }
 
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                }
 
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                public Collection<MethodDefinition> OtherMethods {
 
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                        get {
 
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                                if (other_methods != null)
 
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                                        return other_methods;
 
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                                InitializeMethods ();
 
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                                if (other_methods != null)
 
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                                        return other_methods;
 
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                                return other_methods = new Collection<MethodDefinition> ();
 
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                        }
 
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                }
 
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                public bool HasCustomAttributes {
 
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                        get {
 
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                                if (custom_attributes != null)
 
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                                        return custom_attributes.Count > 0;
 
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                                return this.GetHasCustomAttributes (Module);
 
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                        }
 
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                }
 
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                public Collection<CustomAttribute> CustomAttributes {
 
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                        get { return custom_attributes ?? (custom_attributes = this.GetCustomAttributes (Module)); }
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                }
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                #region EventAttributes
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                public bool IsSpecialName {
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                        get { return (m_attributes & EventAttributes.SpecialName) != 0; }
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                        set {
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                                if (value)
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                                        m_attributes |= EventAttributes.SpecialName;
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                                else
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                                        m_attributes &= ~EventAttributes.SpecialName;
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                        }
 
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                        get { return attributes.GetAttributes ((ushort) EventAttributes.SpecialName); }
 
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                        set { attributes = attributes.SetAttributes ((ushort) EventAttributes.SpecialName, value); }
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                }
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                public bool IsRuntimeSpecialName {
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                        get { return (m_attributes & EventAttributes.RTSpecialName) != 0; }
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                        set {
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                                if (value)
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                                        m_attributes |= EventAttributes.RTSpecialName;
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                                else
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                                        m_attributes &= ~EventAttributes.RTSpecialName;
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                        }
 
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                        get { return attributes.GetAttributes ((ushort) FieldAttributes.RTSpecialName); }
 
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                        set { attributes = attributes.SetAttributes ((ushort) FieldAttributes.RTSpecialName, value); }
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                }
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                #endregion
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                public EventDefinition (string name, TypeReference eventType,
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                        EventAttributes attrs) : base (name, eventType)
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                {
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                        m_attributes = attrs;
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                }
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                public static MethodDefinition CreateAddMethod (EventDefinition evt)
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                {
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                        MethodDefinition add = new MethodDefinition (
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                                string.Concat ("add_", evt.Name), (MethodAttributes) 0, evt.EventType);
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                        evt.AddMethod = add;
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                        return add;
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                }
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                public static MethodDefinition CreateRemoveMethod (EventDefinition evt)
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                {
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                        MethodDefinition remove = new MethodDefinition (
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                                string.Concat ("remove_", evt.Name), (MethodAttributes) 0, evt.EventType);
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                        evt.RemoveMethod = remove;
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                        return remove;
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                }
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                public static MethodDefinition CreateInvokeMethod (EventDefinition evt)
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                {
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                        MethodDefinition raise = new MethodDefinition (
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                                string.Concat ("raise_", evt.Name), (MethodAttributes) 0, evt.EventType);
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                        evt.InvokeMethod = raise;
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                        return raise;
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                }
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                public EventDefinition Clone ()
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                {
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                        return Clone (this, new ImportContext (NullReferenceImporter.Instance, this.DeclaringType));
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                }
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                internal static EventDefinition Clone (EventDefinition evt, ImportContext context)
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                {
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                        EventDefinition ne = new EventDefinition (
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                                evt.Name,
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                                context.Import (evt.EventType),
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                                evt.Attributes);
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                        if (context.GenericContext.Type is TypeDefinition) {
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                                TypeDefinition type = context.GenericContext.Type as TypeDefinition;
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                                if (evt.AddMethod != null)
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                                        ne.AddMethod = type.Methods.GetMethod (evt.AddMethod.Name) [0];
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                                if (evt.InvokeMethod != null)
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                                        ne.InvokeMethod = type.Methods.GetMethod (evt.InvokeMethod.Name) [0];
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                                if (evt.RemoveMethod != null)
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                                        ne.RemoveMethod = type.Methods.GetMethod (evt.RemoveMethod.Name) [0];
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                        }
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                        foreach (CustomAttribute ca in evt.CustomAttributes)
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                                ne.CustomAttributes.Add (CustomAttribute.Clone (ca, context));
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                        return ne;
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                }
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                public override void Accept (IReflectionVisitor visitor)
153
 
                {
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                        visitor.VisitEventDefinition (this);
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                        this.CustomAttributes.Accept (visitor);
 
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                public new TypeDefinition DeclaringType {
 
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                        get { return (TypeDefinition) base.DeclaringType; }
 
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                        set { base.DeclaringType = value; }
 
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                }
 
137
 
 
138
                public override bool IsDefinition {
 
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                        get { return true; }
 
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                }
 
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142
                public EventDefinition (string name, EventAttributes attributes, TypeReference eventType)
 
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                        : base (name, eventType)
 
144
                {
 
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                        this.attributes = (ushort) attributes;
 
146
                        this.token = new MetadataToken (TokenType.Event);
 
147
                }
 
148
 
 
149
                void InitializeMethods ()
 
150
                {
 
151
                        if (add_method != null
 
152
                                || invoke_method != null
 
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                                || remove_method != null)
 
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                                return;
 
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                        var module = this.Module;
 
157
                        if (!module.HasImage ())
 
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                                return;
 
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                        module.Read (this, (@event, reader) => reader.ReadMethods (@event));
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                }
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        }
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}