An exception is thrown when mapping a private property of a generic class: Method not found

[gaodayihao]

Please do the checklist before filing an issue:

• I have read the documentation, including the FAQ
• I can reproduce the bug using the latest prerelease version
• I have searched existing discussion and issue to avoid duplicates

Describe the bug

An exception is thrown when mapping a private property of a generic class: Method not found

refer: https://learn.microsoft.com/en-us/dotnet/core/compatibility/core-libraries/9.0/unsafeaccessor-generics

Declaration code

using Riok.Mapperly.Abstractions;

public class Entity<TKey>
{
    public TKey Id { get; protected set; }
}

public class Student : Entity<Guid>
{
    public Student()
    {
        Id = Guid.NewGuid();
    }

    public int EntityVersion { get; protected set; } = 1;
}

public class StudentEto
{
    public Guid Id { get; set; }

    public int EntityVersion { get; set; }
}

[Mapper(RequiredMappingStrategy = RequiredMappingStrategy.Both, IncludedMembers = MemberVisibility.All)]
public static partial class Mapper
{
    public static partial Student MapperToStudent(StudentEto source);
}

Actual relevant generated code

// <auto-generated />
#nullable enable
public static partial class Mapper
{
    [global::System.CodeDom.Compiler.GeneratedCode("Riok.Mapperly", "4.2.0.0")]
    public static partial global::Student MapperToStudent(global::StudentEto source)
    {
        var target = new global::Student();
        target.SetEntityVersion(source.EntityVersion);
        target.SetId(source.Id);
        return target;
    }
}
    
[global::System.CodeDom.Compiler.GeneratedCode("Riok.Mapperly", "4.2.0.0")]
static file class UnsafeAccessor
{
    [global::System.CodeDom.Compiler.GeneratedCode("Riok.Mapperly", "4.2.0.0")]
    [global::System.Runtime.CompilerServices.UnsafeAccessor(global::System.Runtime.CompilerServices.UnsafeAccessorKind.Method, Name = "set_EntityVersion")]
    public static extern void SetEntityVersion(this global::Student target, int value);

    [global::System.CodeDom.Compiler.GeneratedCode("Riok.Mapperly", "4.2.0.0")]
    [global::System.Runtime.CompilerServices.UnsafeAccessor(global::System.Runtime.CompilerServices.UnsafeAccessorKind.Method, Name = "set_Id")]
    public static extern void SetId(this global::Entity<global::System.Guid> target, global::System.Guid value);
}

Expected relevant generated code

// <auto-generated />
#nullable enable
public static partial class Mapper
{
    [global::System.CodeDom.Compiler.GeneratedCode("Riok.Mapperly", "4.2.0.0")]
    public static partial global::Student MapperToStudent(global::StudentEto source)
    {
        var target = new global::Student();
        target.SetEntityVersion(source.EntityVersion);
        UnsafeAccessor<Guid>.SetId(target, source.Id);
        return target;
    }
}

[global::System.CodeDom.Compiler.GeneratedCode("Riok.Mapperly", "4.2.0.0")]
static file class UnsafeAccessor
{
    [global::System.CodeDom.Compiler.GeneratedCode("Riok.Mapperly", "4.2.0.0")]
    [global::System.Runtime.CompilerServices.UnsafeAccessor(global::System.Runtime.CompilerServices.UnsafeAccessorKind.Method, Name = "set_EntityVersion")]
    public static extern void SetEntityVersion(this global::Student target, int value);
}

[global::System.CodeDom.Compiler.GeneratedCode("Riok.Mapperly", "4.2.0.0")]
static file class UnsafeAccessor<TKey>
{
    [global::System.CodeDom.Compiler.GeneratedCode("Riok.Mapperly", "4.2.0.0")]
    [global::System.Runtime.CompilerServices.UnsafeAccessor(global::System.Runtime.CompilerServices.UnsafeAccessorKind.Method, Name = "set_Id")]
    public static extern void SetId(global::Entity<TKey> target, TKey value);
}

Environment:

• Mapperly Version: 4.2.0-next.0
• Nullable reference types: enabled
• .NET Version: .NET 9.0.101
• Target Framework: .net9.0
• Compiler version: '4.12.0-3.24572.7 (dfa7fc6b)'. Language version: latest (13.0).
• C# Language Version: 13.0
• IDE: Visual Studio v17.12.3
• OS: Windows 10

[latonz]

Does the actual generated code work with .NET 8? Could be related to this breaking change.

[gaodayihao]

Does the actual generated code work with .NET 8? Could be related to this breaking change.

Not sure, just tested in .NET 9