我可以在框架方法上使用SuppressMessage吗？

Question

我想从CodeContracts实现以下建议:

CodeContracts: MyModule: Method MyModule.MyClass.MyMethod: 
To mask *all* warnings issued like the precondition add the attribute: 

[SuppressMessage("Microsoft.Contracts", "RequiresAtCall-propertyAccessor != null")] 

to the method 

System.Linq.Expressions.Expression.Property(System.Linq.Expressions.Expression,System.Reflection.MethodInfo)

感觉我应该能够使用具有Target属性的SupressMessage来实现这一点.但是,因为这是一个Framework方法,我不确定.

//doesn't work
[module: SuppressMessage("Microsoft.Contracts", "RequiresAtCall-propertyAccessor != null", Scope = "Member", Target = "System.Linq.Expressions.Expression.Property(System.Linq.Expressions.Expression,System.Reflection.MethodInfo)", Justification = "This isn't covered by Linq Contracts yet.")]

如何全局抑制此警告,因此我不必基线或抑制所有呼叫站点警告？

EDIT: The specific usage that requires this measure is:

void mymethod()
{
    var myObserver = new PropertyObserver<MyViewModel>();
    //this line throws the error, within the n => n.Value expression
    myObserver.RegisterHandler(n => n.Value, OnValueChanged);
}

public class PropertyObserver<TPropertySource> where TPropertySource : INotifyPropertyChanged
{
    public PropertyObserver<TPropertySource> RegisterHandler(
        Expression<Func<TPropertySource, object>> expression,
        Action<TPropertySource> handler)
    {
        //what this does is irrelevant; the violation  occurs in the method call
    }
}

//n => n.Value decompiles to the following
public static MemberExpression Property (Expression expression, MethodInfo   propertyAccessor)
{
    //and this line is the message I want to suppress, but it's in the .NET framework.
    ContractUtils.RequiresNotNull(propertyAccessor, "propertyAccessor");
    ValidateMethodInfo(propertyAccessor);
    return Property (expression, GetProperty(propertyAccessor));
}

Answer 1

经过对 ranomore 的进一步调查，代码合约中似乎存在一个错误。

正在访问的类n => n.Value有一个通用的T Value属性。如果该类更改为非泛型类（带有object Value），则警告消失。（通用类object Value也会给出警告）。

当然，这并没有回答最初的问题，但我认为不可能做到这一点。