I’m using ILLink.Substitutions.xml to create a assembly library trimmable.

This would be example code.

namespace NSpace;

public static NClass 
{
    public static void NGenericMethod<TGeneric>(Boolean condition1, Boolean condition2, TGeneric value, String name) where TGeneric : unmanaged, IEqualityOperators<TGeneric, TGeneric, Boolean> {
        // Body
    }
}

This would be ILLink.Substitutions.xml example:

<?xml version="1.0" encoding="utf-8"?>
<linker>
    <assembly fullname="NAssembly">
    <type fullname="NSpace.NClass" feature="NAssembly.EnableFeature" featurevalue="false">
            <method signature="System.Void NGenericMethod`1(System.Boolean,System.Boolean,!0,System.String)" body="stub">
        </assembly>
    </type>
</linker>

But I’m getting warning IL2009: Could not find method 'System.Void NGenericMethod`1(System.Boolean,System.Boolean,!0,System.String)' on type 'NClass.NClass'.

I expect get no warning and method body substitution.