31 lines
793 B
Rust
31 lines
793 B
Rust
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//! Testing https://github.com/PyO3/pyo3/issues/1106. A result type that
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//! *doesn't* implement `From<MyError> for PyErr` won't be automatically
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//! converted when using `#[pyfunction]`.
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use pyo3::prelude::*;
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use std::fmt;
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/// A basic error type for the tests. It's missing `From<MyError> for PyErr`,
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/// though, so it shouldn't work.
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#[derive(Debug)]
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struct MyError {
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pub descr: &'static str,
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}
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impl fmt::Display for MyError {
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fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
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write!(f, "My error message: {}", self.descr)
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}
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}
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#[pyfunction]
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fn should_not_work() -> Result<(), MyError> {
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Err(MyError { descr: "something went wrong" })
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}
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fn main() {
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let gil = Python::acquire_gil();
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let py = gil.python();
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wrap_pyfunction!(should_not_work)(py);
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}
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