Function execv

crates/vm/src/stdlib/nt.rs:1179–1215

(
        path: OsPath,
        argv: Either<PyListRef, PyTupleRef>,
        vm: &VirtualMachine,
    )

    #[cfg(target_env = "msvc")]
    #[pyfunction]
    fn execv(
        path: OsPath,
        argv: Either<PyListRef, PyTupleRef>,
        vm: &VirtualMachine,
    ) -> PyResult<()> {
        use core::iter::once;

        let make_widestring =
            |s: &str| widestring::WideCString::from_os_str(s).map_err(|err| err.to_pyexception(vm));

        let path = path.to_wide_cstring(vm)?;

        let argv = vm.extract_elements_with(argv.as_ref(), |obj| {
            let arg = PyStrRef::try_from_object(vm, obj)?;
            make_widestring(arg.expect_str())
        })?;

        let first = argv
            .first()
            .ok_or_else(|| vm.new_value_error("execv() arg 2 must not be empty"))?;

        if first.is_empty() {
            return Err(vm.new_value_error("execv() arg 2 first element cannot be empty"));
        }

        let argv_execv: Vec<*const u16> = argv
            .iter()
            .map(|v| v.as_ptr())
            .chain(once(core::ptr::null()))
            .collect();

        if (unsafe { suppress_iph!(_wexecv(path.as_ptr(), argv_execv.as_ptr())) } == -1) {
            Err(vm.new_last_errno_error())
        } else {
            Ok(())
        }
    }

    #[cfg(target_env = "msvc")]
    #[pyfunction]