comparison rust/hg-cpython/src/cindex.rs @ 41350:ab0d762d89ef stable

rust-cpython: raising error.WdirUnsupported

The Graph implementation of hg-cpython returns the appropriate error
upon encounter with the working directory special revision number, and
this gives us in particular a code path to test from test-rust-ancestors.py

In the current implementation, the exception is actually raised from
the iterator instantiation; we are nonetheless consuming the iterator
in the test with `list()` in order not to depend on implementation details.

41349:ee943a920606

#[cfg(feature = "python3")]
extern crate python3_sys as python_sys;

use self::python_sys::PyCapsule_Import;
use cpython::{PyClone, PyErr, PyObject, PyResult, Python};
use hg::{Graph, GraphError, Revision};
use libc::c_int;
use std::ffi::CStr;
use std::mem::transmute;

type IndexParentsFn = unsafe extern "C" fn(

}

impl Graph for Index {
    /// wrap a call to the C extern parents function
    fn parents(&self, rev: Revision) -> Result<[Revision; 2], GraphError> {
        let mut res: [c_int; 2] = [0; 2];
        let code = unsafe {
            (self.parents)(
                self.index.as_ptr(),
                rev as c_int,

41350:ab0d762d89ef

#[cfg(feature = "python3")]
extern crate python3_sys as python_sys;

use self::python_sys::PyCapsule_Import;
use cpython::{PyClone, PyErr, PyObject, PyResult, Python};
use hg::{Graph, GraphError, Revision, WORKING_DIRECTORY_REVISION};
use libc::c_int;
use std::ffi::CStr;
use std::mem::transmute;

type IndexParentsFn = unsafe extern "C" fn(

}

impl Graph for Index {
    /// wrap a call to the C extern parents function
    fn parents(&self, rev: Revision) -> Result<[Revision; 2], GraphError> {
        if rev == WORKING_DIRECTORY_REVISION {
            return Err(GraphError::WorkingDirectoryUnsupported);
        }
        let mut res: [c_int; 2] = [0; 2];
        let code = unsafe {
            (self.parents)(
                self.index.as_ptr(),
                rev as c_int,