JET chokes on "pkgdir()"

[tamasgal]

I have the following dummy package as MWE:

$ tree
.
└── Foo
    ├── Project.toml
    └── src
        └── Foo.jl

2 directories, 2 files

$ cat Foo/Project.toml
name = "Foo"
uuid = "92be8fcb-e36f-4a7e-b4ff-aa3da158d331"
authors = ["Tamas Gal"]
version = "0.1.0"

$ cat Foo/src/Foo.jl
module Foo

joinpath(pkgdir(Foo), "bar")

end # module Foo

and when running report_package there is an error since in JET's scope, pkgdir() obviously returns nothing and then joindir fails due to the missing method:

julia> using JET

julia> report_package("Foo")
[toplevel-info] virtualized the context of Main (took 0.008 sec)
[toplevel-info] entered into /Users/tamasgal/tmp/jet/Foo/src/Foo.jl
[toplevel-info]  exited from /Users/tamasgal/tmp/jet/Foo/src/Foo.jl (took 1.614 sec)
═════ 1 toplevel error found ═════
┌ @ /Users/tamasgal/tmp/jet/Foo/src/Foo.jl:3
│ MethodError: no method matching joinpath(::Nothing, ::String)
│
│ Closest candidates are:
│   joinpath(::AbstractString...)
│    @ Base path.jl:327
└─────────────────────


julia>

A bit of a background story: one of my packages uses the following top-level line to get access to its own version which is needed for metadata in files the package generates:

const version = VersionNumber(Pkg.TOML.parsefile(joinpath(pkgdir(KM3io), "Project.toml"))["version"])

I am not able to evaluate anything further because JET stops at this line.

Side quest: I am open for any suggestions how to obtain the version number 😉

[fingolfin]

Regarding the version number, see also this discourse thread.