Stepping into a @generated function causes an exception to be thrown.

[mrakgr]

Repost of the Debugger.jl issue.

---

@generated function fgen(x::Int)
    :(x+1)
end

fgen(1)

Exception has occurred: ErrorException
Method is @generated; try `code_lowered` instead.

I am trying to step into fgen(1) in VS Code and having the exception thrown, though setting a breakpoint to skip past the troublesome area works fine.

Is stepping into @generated functions not supported or is this maybe a VS Code specific issue? I am using the Julia debugger to go over a library and keep running into this.

Specs: Julia 1.6.2, julialang.language-julia v1.3.34, Windows 10.

[JamieMair]

Now in 1.8+, trying to debug any code with a generated function somewhere in the call stack causes the REPL to crash with VS code, not just throw an exception.