upstream/mercurial-mirror Files · rust/hg-pyo3/src/lib.rs

rust-pyo3: facility for submodule registration, using it for dagop...

rust-pyo3: facility for submodule registration, using it for dagop It turns out that PyO3 has the exact same problem that we encountered long ago with rust-cpython. The only difference is that the value of `__name__` is not within the `mercurial` package at this point of registration. We reimplement the solution (equivalent to the suggestions in PyO3 issue tracker anyway), this time in a generic module to limit the amount of boilerplate in subsequent applications.

Georges Racinet - - Load All Authors

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             lib.rs
        
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             | 539 B
            
                | application/rls-services+xml
            
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             / rust / hg-pyo3 / src / lib.rs
          
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      use pyo3::prelude::*;

      mod dagops;

      mod util;

      #[pymodule]

      fn pyo3_rustext(py: Python<'_>, m: &Bound<'_, PyModule>) -> PyResult<()> {

          m.add(

              "__doc__",

              "Mercurial core concepts - Rust implementation exposed via PyO3",

          )?;

          // the module's __name__ is pyo3_rustext, not mercurial.pyo3_rustext

          // (at least at this point).

          let name: String = m.getattr("__name__")?.extract()?;

          let dotted_name = format!("mercurial.{}", name);

          m.add_submodule(&dagops::init_module(py, &dotted_name)?)?;

          Ok(())

      }

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				use pyo3::prelude::*;

				mod dagops;
				mod util;

				#[pymodule]
				fn pyo3_rustext(py: Python<'_>, m: &Bound<'_, PyModule>) -> PyResult<()> {
				m.add(
				"__doc__",
				"Mercurial core concepts - Rust implementation exposed via PyO3",
				)?;
				// the module's __name__ is pyo3_rustext, not mercurial.pyo3_rustext
				// (at least at this point).
				let name: String = m.getattr("__name__")?.extract()?;
				let dotted_name = format!("mercurial.{}", name);

				m.add_submodule(&dagops::init_module(py, &dotted_name)?)?;
				Ok(())
				}