Panic when generating stub pymethods

[cardigan1008]

When I tried to add gen_stub_pymethods for pymethods, it panics:

thread 'main' panicked at /home/yunboni/.cargo/registry/src/index.crates.io-6f17d22bba15001f/pyo3-stub-gen-0.6.0/src/generate/stub_info.rs:136:9:
internal error: entered unreachable code: Missing struct_id = TypeId(0xf92611a13ccd508e032c0d7de1b7a2cb)

The full backtrace

stack backtrace:
   0:     0x5a4c66ea731d - std::backtrace_rs::backtrace::libunwind::trace::hb30cb06542f0d921
                               at /rustc/f167efad2f51088d86180ee89177b3d7c9e7c2f5/library/std/src/../../backtrace/src/backtrace/libunwind.rs:116:5
   1:     0x5a4c66ea731d - std::backtrace_rs::backtrace::trace_unsynchronized::hcfaf81cd0ca679e8
                               at /rustc/f167efad2f51088d86180ee89177b3d7c9e7c2f5/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
   2:     0x5a4c66ea731d - std::sys::backtrace::_print_fmt::h0edd5df96f6b1838
                               at /rustc/f167efad2f51088d86180ee89177b3d7c9e7c2f5/library/std/src/sys/backtrace.rs:66:9
   3:     0x5a4c66ea731d - <std::sys::backtrace::BacktraceLock::print::DisplayBacktrace as core::fmt::Display>::fmt::h4178db4b62b6a7c8
                               at /rustc/f167efad2f51088d86180ee89177b3d7c9e7c2f5/library/std/src/sys/backtrace.rs:39:26
   4:     0x5a4c66ecdf4b - core::fmt::rt::Argument::fmt::hb0f91bd7c51e56a9
                               at /rustc/f167efad2f51088d86180ee89177b3d7c9e7c2f5/library/core/src/fmt/rt.rs:173:76
   5:     0x5a4c66ecdf4b - core::fmt::write::hdebf67a64074cdfd
                               at /rustc/f167efad2f51088d86180ee89177b3d7c9e7c2f5/library/core/src/fmt/mod.rs:1178:21
   6:     0x5a4c66ea3b73 - std::io::Write::write_fmt::h67b07a8971426909
                               at /rustc/f167efad2f51088d86180ee89177b3d7c9e7c2f5/library/std/src/io/mod.rs:1823:15
   7:     0x5a4c66ea84d2 - std::sys::backtrace::BacktraceLock::print::h5d391486a3405efe
                               at /rustc/f167efad2f51088d86180ee89177b3d7c9e7c2f5/library/std/src/sys/backtrace.rs:42:9
   8:     0x5a4c66ea84d2 - std::panicking::default_hook::{{closure}}::hb33c35cc1f4b50b3
                               at /rustc/f167efad2f51088d86180ee89177b3d7c9e7c2f5/library/std/src/panicking.rs:266:22
   9:     0x5a4c66ea813e - std::panicking::default_hook::h2c83543c651f3125
                               at /rustc/f167efad2f51088d86180ee89177b3d7c9e7c2f5/library/std/src/panicking.rs:293:9
  10:     0x5a4c66ea8dcf - std::panicking::rust_panic_with_hook::h48ec1454fab3e9d6
                               at /rustc/f167efad2f51088d86180ee89177b3d7c9e7c2f5/library/std/src/panicking.rs:797:13
  11:     0x5a4c66ea8ab7 - std::panicking::begin_panic_handler::{{closure}}::hdfdc79a140009172
                               at /rustc/f167efad2f51088d86180ee89177b3d7c9e7c2f5/library/std/src/panicking.rs:671:13
  12:     0x5a4c66ea7809 - std::sys::backtrace::__rust_end_short_backtrace::h5e9ef3624d34a08c
                               at /rustc/f167efad2f51088d86180ee89177b3d7c9e7c2f5/library/std/src/sys/backtrace.rs:170:18
  13:     0x5a4c66ea8744 - rust_begin_unwind
                               at /rustc/f167efad2f51088d86180ee89177b3d7c9e7c2f5/library/std/src/panicking.rs:662:5
  14:     0x5a4c66ecc123 - core::panicking::panic_fmt::h5c7dda2686e962d9
                               at /rustc/f167efad2f51088d86180ee89177b3d7c9e7c2f5/library/core/src/panicking.rs:74:14
  15:     0x5a4c66d4faf3 - pyo3_stub_gen::generate::stub_info::StubInfoBuilder::add_methods::h4c3b1ec6cdfad5b9
                               at /home/yunboni/.cargo/registry/src/index.crates.io-6f17d22bba15001f/pyo3-stub-gen-0.6.0/src/generate/stub_info.rs:136:9
  16:     0x5a4c66d500fa - pyo3_stub_gen::generate::stub_info::StubInfoBuilder::build::h7444c13a5647ef64
                               at /home/yunboni/.cargo/registry/src/index.crates.io-6f17d22bba15001f/pyo3-stub-gen-0.6.0/src/generate/stub_info.rs:156:13
  17:     0x5a4c66633db4 - pyo3_stub_gen::generate::stub_info::StubInfo::from_pyproject_toml::hb6119ccd9486a5b3
                               at /home/yunboni/.cargo/registry/src/index.crates.io-6f17d22bba15001f/pyo3-stub-gen-0.6.0/src/generate/stub_info.rs:14:12
  18:     0x5a4c66633bc2 - hifitime::python::stub_info::hddb0ed43e85df2d1
                               at /home/yunboni/.cargo/registry/src/index.crates.io-6f17d22bba15001f/pyo3-stub-gen-0.6.0/src/lib.rs:174:13
  19:     0x5a4c665b03f5 - stub_gen::main::h5b6d66163ae71fe5
                               at /home/yunboni/hifitime/src/bin/stub_gen.rs:4:16
  20:     0x5a4c665b069b - core::ops::function::FnOnce::call_once::h61545b5ea0bed2b5
                               at /rustc/f167efad2f51088d86180ee89177b3d7c9e7c2f5/library/core/src/ops/function.rs:250:5
  21:     0x5a4c665b018e - std::sys::backtrace::__rust_begin_short_backtrace::h89427225118d9066
                               at /rustc/f167efad2f51088d86180ee89177b3d7c9e7c2f5/library/std/src/sys/backtrace.rs:154:18
  22:     0x5a4c665b0151 - std::rt::lang_start::{{closure}}::ha9fd5973a951ece5
                               at /rustc/f167efad2f51088d86180ee89177b3d7c9e7c2f5/library/std/src/rt.rs:164:18
  23:     0x5a4c66e9eab0 - core::ops::function::impls::<impl core::ops::function::FnOnce<A> for &F>::call_once::h1aa92f19b2f91a3c
                               at /rustc/f167efad2f51088d86180ee89177b3d7c9e7c2f5/library/core/src/ops/function.rs:284:13
  24:     0x5a4c66e9eab0 - std::panicking::try::do_call::hfc6bbd2f1a3cd1f1
                               at /rustc/f167efad2f51088d86180ee89177b3d7c9e7c2f5/library/std/src/panicking.rs:554:40
  25:     0x5a4c66e9eab0 - std::panicking::try::h5620cef3d1a654de
                               at /rustc/f167efad2f51088d86180ee89177b3d7c9e7c2f5/library/std/src/panicking.rs:518:19
  26:     0x5a4c66e9eab0 - std::panic::catch_unwind::h970e31091dac502b
                               at /rustc/f167efad2f51088d86180ee89177b3d7c9e7c2f5/library/std/src/panic.rs:345:14
  27:     0x5a4c66e9eab0 - std::rt::lang_start_internal::{{closure}}::hfdfbb5d94d0b9db3
                               at /rustc/f167efad2f51088d86180ee89177b3d7c9e7c2f5/library/std/src/rt.rs:143:48
  28:     0x5a4c66e9eab0 - std::panicking::try::do_call::he3ecfdbda2953cda
                               at /rustc/f167efad2f51088d86180ee89177b3d7c9e7c2f5/library/std/src/panicking.rs:554:40
  29:     0x5a4c66e9eab0 - std::panicking::try::h363a3b12f1cc4371
                               at /rustc/f167efad2f51088d86180ee89177b3d7c9e7c2f5/library/std/src/panicking.rs:518:19
  30:     0x5a4c66e9eab0 - std::panic::catch_unwind::h83fc948c8bab08fe
                               at /rustc/f167efad2f51088d86180ee89177b3d7c9e7c2f5/library/std/src/panic.rs:345:14
  31:     0x5a4c66e9eab0 - std::rt::lang_start_internal::hc5f8e73a6e68745c
                               at /rustc/f167efad2f51088d86180ee89177b3d7c9e7c2f5/library/std/src/rt.rs:143:20
  32:     0x5a4c665b012a - std::rt::lang_start::hdef74db7328565d8
                               at /rustc/f167efad2f51088d86180ee89177b3d7c9e7c2f5/library/std/src/rt.rs:163:17
  33:     0x5a4c665b065e - main
  34:     0x79bdf0829d90 - __libc_start_call_main
                               at ./csu/../sysdeps/nptl/libc_start_call_main.h:58:16
  35:     0x79bdf0829e40 - __libc_start_main_impl
                               at ./csu/../csu/libc-start.c:392:3
  36:     0x5a4c665b0025 - _start
  37:                0x0 - <unknown>

The code is:

#[cfg_attr(feature = "python", gen_stub_pymethods)] // where I add the gen_stub_pymethods
#[cfg_attr(feature = "python", pymethods)]
impl TimeScale {
    /// Returns true if self takes leap seconds into account
    pub const fn uses_leap_seconds(&self) -> bool {
        matches!(self, Self::UTC)
    }
}

[termoshtt]

internal error: entered unreachable code: Missing struct_id = TypeId(0xf92611a13ccd508e032c0d7de1b7a2cb)

This means TimeScale does not attributed by #[gen_stub_pyclass] (or #[gen_stub_pyclass_enum])

[cardigan1008]

This means TimeScale does not attributed by #[gen_stub_pyclass] (or #[gen_stub_pyclass_enum])

However, I have implemented TimeScale with #[gen_stub_pyclass_enum]:

#[cfg_attr(feature = "python", gen_stub_pyclass_enum)]
#[derive(Copy, Clone, Debug, PartialEq, Eq, PartialOrd, Ord, Hash)]
#[cfg_attr(feature = "python", pyclass(eq, eq_int))]
#[cfg_attr(feature = "serde", derive(Serialize, Deserialize))]
pub enum TimeScale {

And the previous generated .pyi file has included the TimeScale class.

[termoshtt]

Looks strange, will be a bug. Could you create a minimal example to reproduce this result?