rust/hg-pyo3/src/lib.rs
author Georges Racinet <georges.racinet@cloudcrane.io>
Sat, 30 Nov 2024 20:27:11 +0100
changeset 52408 20c0472b2ab7
parent 52407 c5128c541021
child 52409 a642c0a3860f
permissions -rw-r--r--
rust-pyo3: defining GraphError This pretty much parallels the way in works with `cpython`. A warning, though: this new `pyo3_rustext.GraphError` is not the same as `rustext.GraphError`, yet both subclass `ValueError`.
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use pyo3::prelude::*;
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mod dagops;
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mod exceptions;
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mod util;
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#[pymodule]
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fn pyo3_rustext(py: Python<'_>, m: &Bound<'_, PyModule>) -> PyResult<()> {
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    m.add(
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        "__doc__",
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        "Mercurial core concepts - Rust implementation exposed via PyO3",
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    )?;
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    // the module's __name__ is pyo3_rustext, not mercurial.pyo3_rustext
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    // (at least at this point).
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    let name: String = m.getattr("__name__")?.extract()?;
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    let dotted_name = format!("mercurial.{}", name);
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    m.add_submodule(&dagops::init_module(py, &dotted_name)?)?;
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    m.add("GraphError", py.get_type::<exceptions::GraphError>())?;
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    Ok(())
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}