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

revlog: made C Capsule an array of function pointers...

revlog: made C Capsule an array of function pointers Although it's perfectly valid to put a function pointer in a capsule, as we've been doing since the start of rust/hg-cpython, an array of function pointers has several advantages: - it can hold several functions. That's our main motivation here. We plan to expose index_length() and index_node(), which will be needed for a Rust implementation of nodemap. - it could also have data - (probably minor in the case of Mercurial) proper support for architectures for which data and code pointers don't have the same size. Differential Revision: https://phab.mercurial-scm.org/D7543

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             revlog.rs
        
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                | application/rls-services+xml
            
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             / rust / hg-cpython / src / revlog.rs
          
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      // revlog.rs

      //

      // Copyright 2019 Georges Racinet <georges.racinet@octobus.net>

      //

      // This software may be used and distributed according to the terms of the

      // GNU General Public License version 2 or any later version.

      use crate::cindex;

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

      /// Return a Struct implementing the Graph trait

      pub(crate) fn pyindex_to_graph(

          py: Python,

          index: PyObject,

      ) -> PyResult<cindex::Index> {

          cindex::Index::new(py, index)

      }

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				// revlog.rs
				//
				// Copyright 2019 Georges Racinet <georges.racinet@octobus.net>
				//
				// This software may be used and distributed according to the terms of the
				// GNU General Public License version 2 or any later version.

				use crate::cindex;
				use cpython::{PyObject, PyResult, Python};

				/// Return a Struct implementing the Graph trait
				pub(crate) fn pyindex_to_graph(
				py: Python,
				index: PyObject,
				) -> PyResult<cindex::Index> {
				cindex::Index::new(py, index)
				}