我想从CodeContracts实施以下建议:
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 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,以便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));
}
答案 0 :(得分:3)
在使用ranomore进行更多调查之后,代码合同中似乎存在一个错误。
通过n => n.Value
访问的类具有通用T Value
属性。如果将类更改为非泛型类(使用object Value
),则警告将消失。 (带有object Value
的通用类也会发出警告)。
当然,这并没有回答原来的问题,但我认为不可能这样做。
答案 1 :(得分:0)
将GlobalSuppressions.cs添加到项目的根目录。
添加[模块...
用程序集替换单词模块。
这有用吗?
答案 2 :(得分:0)
它确实有效。您可以向包含表达式的方法添加SupressMessageAttribute
。只是不要使用RequiresAtCall
。相反,请使用Requires
:
[SuppressMessage("Microsoft.Contracts", "Requires",
Justification = "Bug in static checker")]
public void Override(AutoMapping<Bookings> mapping)
{
Contract.Assume(mapping != null);
mapping.Id(x => x.Id);
}
明显的缺点是你必须使用这些代码来填充代码......
答案 3 :(得分:-1)
查看项目属性的“构建”选项卡。有一个“抑制警告”字段。