Set eligibility to not run against (built-in) methods of record classes or structs

I've figured out how to set up an

If

If

If

If statement for the record types, but I cannot figure out how to end it - how can I ensure my OverrideMethodAspect doesn't actually apply to any methods that are attached to a record? Even better though - is there any way to have it not apply to any methods that aren't automatically a part of a record (e.g. don't apply to ToString or Equals, but do apply to MyCustomMethod without specifically calling such custom methods out)?

Thanks!

Petr Onderka•7/25/23, 8:39 AM

builder.Ifbuilder.If is useful when you have a rule that you want to check only if some condition is true. E.g. something like:

builder.If(m => m.DeclaringType.TypeKind is TypeKind.RecordClass or TypeKind.RecordStruct)
    .MustSatisfy(m => m.Name != nameof(ToString), m => $"record method can't be ToString");

builder.If(m => m.DeclaringType.TypeKind is TypeKind.RecordClass or TypeKind.RecordStruct)
    .MustSatisfy(m => m.Name != nameof(ToString), m => $"record method can't be ToString");

Except this does not work correctly right now: https://github.com/postsharp/Metalama/issues/188.

But if you just want to exclude all methods on a record, you don't need

If

If

builder.MustSatisfy(
    m => m.DeclaringType.TypeKind is not (TypeKind.RecordClass or TypeKind.RecordStruct),
    m => $"method can't be member of a record");

builder.MustSatisfy(
    m => m.DeclaringType.TypeKind is not (TypeKind.RecordClass or TypeKind.RecordStruct),
    m => $"method can't be member of a record");

If you only want to apply an aspect to methods that are declared in source code, you can use build.MustBeExplicitlyDeclared()build.MustBeExplicitlyDeclared() for that. Though that is already included for OverrideMethodAspectOverrideMethodAspect (assuming you call base.BuildEligibility(builder);base.BuildEligibility(builder);).