upstream/mercurial-mirror Files · rust/hg-cpython/src/utils.rs

rust-cpython: make PySharedRef::try_borrow_mut() return BorrowMutError...

rust-cpython: make PySharedRef::try_borrow_mut() return BorrowMutError As I said, it shouldn't be an error of Python layer, but is something like a coding error. Returning BorrowMutError makes more sense. There's a weird hack to propagate the borrow-by-leaked state to RefCell to obtain BorrowMutError. If we don't like it, maybe we can add our own BorrowMutError.

Raphaël Gomès - - Load All Authors

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             utils.rs
        
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                | application/rls-services+xml
            
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      use cpython::{PyDict, PyObject, PyResult, PyTuple, Python};

      #[allow(unused)]

      pub fn print_python_trace(py: Python) -> PyResult<PyObject> {

          eprintln!("===============================");

          eprintln!("Printing Python stack from Rust");

          eprintln!("===============================");

          let traceback = py.import("traceback")?;

          let sys = py.import("sys")?;

          let kwargs = PyDict::new(py);

          kwargs.set_item(py, "file", sys.get(py, "stderr")?)?;

          traceback.call(py, "print_stack", PyTuple::new(py, &[]), Some(&kwargs))

      }

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				use cpython::{PyDict, PyObject, PyResult, PyTuple, Python};

				#[allow(unused)]
				pub fn print_python_trace(py: Python) -> PyResult<PyObject> {
				eprintln!("===============================");
				eprintln!("Printing Python stack from Rust");
				eprintln!("===============================");
				let traceback = py.import("traceback")?;
				let sys = py.import("sys")?;
				let kwargs = PyDict::new(py);
				kwargs.set_item(py, "file", sys.get(py, "stderr")?)?;
				traceback.call(py, "print_stack", PyTuple::new(py, &[]), Some(&kwargs))
				}