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

rust-pyo3: conversions to GraphError Python exception...

rust-pyo3: conversions to GraphError Python exception The nice thing is that with PyO3, exceptions can be instantiated without holding the GIL. Hence the only thing that prevents us to implement `Into<PyErr>` for `hg::GraphError` is that neither is defined by the current crate. We could use a wrapping "newtype", but the compiler is not so clever yet that it could chain automatically to two needed `into()`, so we'll end up with some type conversion anyway, involving something like `GraphErrorWrapper`. At this point, explicitly named methods are just simpler.

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             dagops.rs
        
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      // dagops.rs

      //

      // Copyright 2024 Georges Racinet <georges.racinet@cloudcrane.io>

      //

      // This software may be used and distributed according to the terms of the

      // GNU General Public License version 2 or any later version.

      //! Bindings for the `hg::dagops` module provided by the

      //! `hg-core` package.

      //!

      //! From Python, this will be seen as `mercurial.pyo3-rustext.dagop`

      use pyo3::prelude::*;

      use crate::util::new_submodule;

      pub fn init_module<'py>(

          py: Python<'py>,

          package: &str,

      ) -> PyResult<Bound<'py, PyModule>> {

          let m = new_submodule(py, package, "dagop")?;

          Ok(m)

      }

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				// dagops.rs
				//
				// Copyright 2024 Georges Racinet <georges.racinet@cloudcrane.io>
				//
				// This software may be used and distributed according to the terms of the
				// GNU General Public License version 2 or any later version.

				//! Bindings for the `hg::dagops` module provided by the
				//! `hg-core` package.
				//!
				//! From Python, this will be seen as `mercurial.pyo3-rustext.dagop`
				use pyo3::prelude::*;

				use crate::util::new_submodule;

				pub fn init_module<'py>(
				py: Python<'py>,
				package: &str,
				) -> PyResult<Bound<'py, PyModule>> {
				let m = new_submodule(py, package, "dagop")?;
				Ok(m)
				}