public override void Emit ()
		{
			if ((ModFlags & Modifiers.COMPILER_GENERATED) != 0 && !Parent.IsCompilerGenerated)
				Module.PredefinedAttributes.CompilerGenerated.EmitAttribute (MethodBuilder);
			if ((ModFlags & Modifiers.DEBUGGER_HIDDEN) != 0)
				Module.PredefinedAttributes.DebuggerHidden.EmitAttribute (MethodBuilder);

			if (ReturnType.BuiltinType == BuiltinTypeSpec.Type.Dynamic) {
				return_attributes = new ReturnParameter (this, MethodBuilder, Location);
				Module.PredefinedAttributes.Dynamic.EmitAttribute (return_attributes.Builder);
			} else if (ReturnType.HasDynamicElement) {
				return_attributes = new ReturnParameter (this, MethodBuilder, Location);
				Module.PredefinedAttributes.Dynamic.EmitAttribute (return_attributes.Builder, ReturnType, Location);
			}

			if (OptAttributes != null)
				OptAttributes.Emit ();

			if (declarative_security != null) {
				foreach (var de in declarative_security) {
#if STATIC
					MethodBuilder.__AddDeclarativeSecurity (de);
#else
					MethodBuilder.AddDeclarativeSecurity (de.Key, de.Value);
#endif
				}
			}

			if (type_expr != null)
				ConstraintChecker.Check (this, member_type, type_expr.Location);

			base.Emit ();

			if (MethodData != null)
				MethodData.Emit (Parent);

			Block = null;
		}
		public override void ApplyAttributeBuilder (Attribute a, MethodSpec ctor, byte[] cdata, PredefinedAttributes pa)
		{
			if (a.Target == AttributeTargets.ReturnValue) {
				if (return_attributes == null)
					return_attributes = new ReturnParameter (this, MethodBuilder, Location);

				return_attributes.ApplyAttributeBuilder (a, ctor, cdata, pa);
				return;
			}

			if (a.Type == pa.MethodImpl) {
				if ((ModFlags & Modifiers.ASYNC) != 0 && (a.GetMethodImplOptions () & MethodImplOptions.Synchronized) != 0) {
					Report.Error (4015, a.Location, "`{0}': Async methods cannot use `MethodImplOptions.Synchronized'",
						GetSignatureForError ());
				}

				is_external_implementation = a.IsInternalCall ();
			} else if (a.Type == pa.DllImport) {
				const Modifiers extern_static = Modifiers.EXTERN | Modifiers.STATIC;
				if ((ModFlags & extern_static) != extern_static) {
					Report.Error (601, a.Location, "The DllImport attribute must be specified on a method marked `static' and `extern'");
				}
				is_external_implementation = true;
			}

			if (a.IsValidSecurityAttribute ()) {
				a.ExtractSecurityPermissionSet (ctor, ref declarative_security);
				return;
			}

			if (MethodBuilder != null)
				MethodBuilder.SetCustomAttribute ((ConstructorInfo) ctor.GetMetaInfo (), cdata);
		}
		public virtual void Emit (TypeDefinition parent)
		{
			method_data.Emit (parent);

			if ((ModFlags & Modifiers.COMPILER_GENERATED) != 0 && !Parent.IsCompilerGenerated)
				Module.PredefinedAttributes.CompilerGenerated.EmitAttribute (method_data.MethodBuilder);
			if (((ModFlags & Modifiers.DEBUGGER_HIDDEN) != 0))
				Module.PredefinedAttributes.DebuggerHidden.EmitAttribute (method_data.MethodBuilder);

			if (ReturnType.BuiltinType == BuiltinTypeSpec.Type.Dynamic) {
				return_attributes = new ReturnParameter (this, method_data.MethodBuilder, Location);
				Module.PredefinedAttributes.Dynamic.EmitAttribute (return_attributes.Builder);
			} else if (ReturnType.HasDynamicElement) {
				return_attributes = new ReturnParameter (this, method_data.MethodBuilder, Location);
				Module.PredefinedAttributes.Dynamic.EmitAttribute (return_attributes.Builder, ReturnType, Location);
			}

			if (OptAttributes != null)
				OptAttributes.Emit ();

			if (declarative_security != null) {
				foreach (var de in declarative_security) {
#if STATIC
					method_data.MethodBuilder.__AddDeclarativeSecurity (de);
#else
					method_data.MethodBuilder.AddDeclarativeSecurity (de.Key, de.Value);
#endif
				}
			}

			block = null;
		}
		public override void ApplyAttributeBuilder (Attribute a, MethodSpec ctor, byte[] cdata, PredefinedAttributes pa)
		{
			if (a.Type == pa.CLSCompliant || a.Type == pa.Obsolete || a.Type == pa.Conditional) {
				Report.Error (1667, a.Location,
					"Attribute `{0}' is not valid on property or event accessors. It is valid on `{1}' declarations only",
					TypeManager.CSharpName (a.Type), a.GetValidTargets ());
				return;
			}

			if (a.IsValidSecurityAttribute ()) {
				a.ExtractSecurityPermissionSet (ctor, ref declarative_security);
				return;
			}

			if (a.Target == AttributeTargets.Method) {
				method_data.MethodBuilder.SetCustomAttribute ((ConstructorInfo) ctor.GetMetaInfo (), cdata);
				return;
			}

			if (a.Target == AttributeTargets.ReturnValue) {
				if (return_attributes == null)
					return_attributes = new ReturnParameter (this, method_data.MethodBuilder, Location);

				return_attributes.ApplyAttributeBuilder (a, ctor, cdata, pa);
				return;
			}

			ApplyToExtraTarget (a, ctor, cdata, pa);
		}
		public override void Emit ()
		{
			base.Emit ();

			if (ReturnType.Type != null) {
				if (ReturnType.Type.BuiltinType == BuiltinTypeSpec.Type.Dynamic) {
					return_attributes = new ReturnParameter (this, InvokeBuilder.MethodBuilder, Location);
					Module.PredefinedAttributes.Dynamic.EmitAttribute (return_attributes.Builder);
				} else if (ReturnType.Type.HasDynamicElement) {
					return_attributes = new ReturnParameter (this, InvokeBuilder.MethodBuilder, Location);
					Module.PredefinedAttributes.Dynamic.EmitAttribute (return_attributes.Builder, ReturnType.Type, Location);
				}

				ConstraintChecker.Check (this, ReturnType.Type, ReturnType.Location);
			}

			Constructor.ParameterInfo.ApplyAttributes (this, Constructor.ConstructorBuilder);
			Constructor.ConstructorBuilder.SetImplementationFlags (MethodImplAttributes.Runtime);

			parameters.CheckConstraints (this);
			parameters.ApplyAttributes (this, InvokeBuilder.MethodBuilder);
			InvokeBuilder.MethodBuilder.SetImplementationFlags (MethodImplAttributes.Runtime);

			if (BeginInvokeBuilder != null) {
				BeginInvokeBuilder.ParameterInfo.ApplyAttributes (this, BeginInvokeBuilder.MethodBuilder);
				EndInvokeBuilder.ParameterInfo.ApplyAttributes (this, EndInvokeBuilder.MethodBuilder);

				BeginInvokeBuilder.MethodBuilder.SetImplementationFlags (MethodImplAttributes.Runtime);
				EndInvokeBuilder.MethodBuilder.SetImplementationFlags (MethodImplAttributes.Runtime);
			}
		}
		public override void ApplyAttributeBuilder (Attribute a, MethodSpec ctor, byte[] cdata, PredefinedAttributes pa)
		{
			if (a.Target == AttributeTargets.ReturnValue) {
				if (return_attributes == null)
					return_attributes = new ReturnParameter (this, InvokeBuilder.MethodBuilder, Location);

				return_attributes.ApplyAttributeBuilder (a, ctor, cdata, pa);
				return;
			}

			base.ApplyAttributeBuilder (a, ctor, cdata, pa);
		}