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annotate rust/hg-cpython/src/utils.rs @ 44156:7f5410dfc8a6 stable 5.3

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rust-dirstatemap: add missing @propertycache While investigating a regression on `hg update` performance introduced by the Rust `dirstatemap`, two missing `@propertycache` were identified when comparing against the Python implementation. This adds back the first one, that has no observable impact on behavior. The second one (`nonnormalset`) is going to be more involved, as the caching has to be done from the Rust side of things. Differential Revision: https://phab.mercurial-scm.org/D8047
author Rapha?l Gom?s <rgomes@octobus.net>
date Wed, 29 Jan 2020 11:11:18 +0100
parents 970978975574
children d738b7a18438
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43251
970978975574 rust-utils: introduce a debug util to print the python stack trace
Rapha?l Gom?s <rgomes@octobus.net>
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1 use cpython::{PyDict, PyObject, PyResult, PyTuple, Python};
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2
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3 #[allow(unused)]
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4 pub fn print_python_trace(py: Python) -> PyResult<PyObject> {
970978975574 rust-utils: introduce a debug util to print the python stack trace
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5 eprintln!("===============================");
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6 eprintln!("Printing Python stack from Rust");
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7 eprintln!("===============================");
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8 let traceback = py.import("traceback")?;
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9 let sys = py.import("sys")?;
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10 let kwargs = PyDict::new(py);
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11 kwargs.set_item(py, "file", sys.get(py, "stderr")?)?;
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12 traceback.call(py, "print_stack", PyTuple::new(py, &[]), Some(&kwargs))
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13 }