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C# MemberReferenceExpression.AddAnnotation方法代码示例

本文整理汇总了C#中MemberReferenceExpression.AddAnnotation方法的典型用法代码示例。如果您正苦于以下问题:C# MemberReferenceExpression.AddAnnotation方法的具体用法?C# MemberReferenceExpression.AddAnnotation怎么用?C# MemberReferenceExpression.AddAnnotation使用的例子?那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在MemberReferenceExpression的用法示例。


在下文中一共展示了MemberReferenceExpression.AddAnnotation方法的1个代码示例,这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞,您的评价将有助于系统推荐出更棒的C#代码示例。

示例1: VisitObjectCreateExpression

		public override object VisitObjectCreateExpression(ObjectCreateExpression objectCreateExpression, object data)
		{
			if (objectCreateExpression.Arguments.Count() == 2) {
				Expression obj = objectCreateExpression.Arguments.First();
				Expression func = objectCreateExpression.Arguments.Last();
				Annotation annotation = func.Annotation<Annotation>();
				if (annotation != null) {
					IdentifierExpression methodIdent = (IdentifierExpression)((InvocationExpression)func).Arguments.Single();
					MethodReference method = methodIdent.Annotation<MethodReference>();
					if (method != null) {
						if (HandleAnonymousMethod(objectCreateExpression, obj, method))
							return null;
						// Perform the transformation to "new Action(obj.func)".
						obj.Remove();
						methodIdent.Remove();
						if (!annotation.IsVirtual && obj is ThisReferenceExpression) {
							// maybe it's getting the pointer of a base method?
							if (method.DeclaringType != context.CurrentType) {
								obj = new BaseReferenceExpression();
							}
						}
						if (!annotation.IsVirtual && obj is NullReferenceExpression && !method.HasThis) {
							// We're loading a static method.
							// However it is possible to load extension methods with an instance, so we compare the number of arguments:
							bool isExtensionMethod = false;
							TypeReference delegateType = objectCreateExpression.Type.Annotation<TypeReference>();
							if (delegateType != null) {
								TypeDefinition delegateTypeDef = delegateType.Resolve();
								if (delegateTypeDef != null) {
									MethodDefinition invokeMethod = delegateTypeDef.Methods.FirstOrDefault(m => m.Name == "Invoke");
									if (invokeMethod != null) {
										isExtensionMethod = (invokeMethod.Parameters.Count + 1 == method.Parameters.Count);
									}
								}
							}
							if (!isExtensionMethod) {
								obj = new TypeReferenceExpression { Type = AstBuilder.ConvertType(method.DeclaringType) };
							}
						}
						// now transform the identifier into a member reference
						MemberReferenceExpression mre = new MemberReferenceExpression();
						mre.Target = obj;
						mre.MemberName = methodIdent.Identifier;
						methodIdent.TypeArguments.MoveTo(mre.TypeArguments);
						mre.AddAnnotation(method);
						objectCreateExpression.Arguments.Clear();
						objectCreateExpression.Arguments.Add(mre);
						return null;
					}
				}
			}
			return base.VisitObjectCreateExpression(objectCreateExpression, data);
		}
开发者ID:stgwilli,项目名称:ILSpy,代码行数:53,代码来源:DelegateConstruction.cs


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