CA2221: Finalizers should be protected
| Item | Value |
|---|---|
| RuleId | CA2221 |
| Category | Microsoft.Usage |
| Breaking change | Non-breaking |
Cause
A public type implements a finalizer that does not specify family (protected) access.
Note
This rule has been deprecated. For more information, see Deprecated rules.
Rule description
Finalizers must use the family access modifier. This rule is enforced by the C#, Visual Basic, and C++ compilers.
How to fix violations
To fix a violation of this rule, change the finalizer to be family-accessible.
When to suppress warnings
Do not suppress a warning from this rule.
Example
This rule cannot be violated in any high-level .NET language; it can be violated if you are writing Microsoft Intermediate Language.
// =============== CLASS MEMBERS DECLARATION ===================
// note that class flags, 'extends' and 'implements' clauses
// are provided here for information only
.namespace UsageLibrary
{
.class public auto ansi beforefieldinit FinalizeMethodNotProtected
extends [mscorlib]System.Object
{
.method public hidebysig instance void
Finalize() cil managed
{
// Code size 1 (0x1)
.maxstack 0
IL_0000: ret
} // end of method FinalizeMethodNotProtected::Finalize
.method public hidebysig specialname rtspecialname
instance void .ctor() cil managed
{
// Code size 7 (0x7)
.maxstack 1
IL_0000: ldarg.0
IL_0001: call instance void [mscorlib]System.Object::.ctor()
IL_0006: ret
} // end of method FinalizeMethodNotProtected::.ctor
} // end of class FinalizeMethodNotProtected
} // end of namespace