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

rust-nodemap: mutable NodeTree data structure...

rust-nodemap: mutable NodeTree data structure Thanks to the previously indexing abstraction, the only difference in the lookup algorithm is that we don't need the special case for an empty NodeTree any more. We've considered making the mutable root an `Option<Block>`, but that leads to unpleasant checks and `unwrap()` unless we abstract it as typestate patterns (`NodeTree<Immutable>` and `NodeTree<Mutated>`) which seem exaggerated in that case. The initial copy of the root block is a very minor performance penalty, given that it typically occurs just once per transaction. Differential Revision: https://phab.mercurial-scm.org/D7793

Raphaël Gomès - - Load All Authors

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             utils.rs
        
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        Raphaël Gomès
    
rust-utils: introduce a debug util to print the python stack trace...

              r43545
            
      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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Raphaël Gomès rust-utils: introduce a debug util to print the python stack trace...	r43545	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))
		}