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//! Port of `_autocd` from `Completion/Zsh/Context/_autocd`.
//!
//! Full upstream body (5 lines verbatim):
//! ```text
//! sh:1 #compdef -command-
//! sh:2
//! sh:3 _command_names
//! sh:4 local ret=$?
//! sh:5 [[ -o autocd ]] && _cd || return ret
//! ```
//!
//! `_command_names` is ported (in `compsys::ported::_command_names`).
//! `_cd` is a sibling shell fn — dispatch via `exec accessors`. The
//! `AUTOCD` option is read directly from `zsh_h::isset`.
use crate::ported::exec::dispatch_function_call;
use crate::ported::zsh_h::{isset, AUTOCD};
/// `_autocd` — `-command-` context completion: command names + `_cd`
/// when the `autocd` option is set.
pub fn _autocd() -> i32 {
let _fn_scope = crate::compsys::ported::shared::FnScope::enter("_autocd");
// sh:3 — `_command_names`. Route through the router (NOT a direct
// `_command_names(&[])` call) so an override — a plugin-registered one
// (ABI v4, `zmodload -R`) or the user's own `$fpath` copy — wins over
// the built-in Rust port, exactly as it would if `_autocd` were the
// shell function invoking `_command_names` by name.
//
// `dispatch_compsys` returns None when NEITHER a plugin nor the port
// handles the name, which now also covers "the port stepped aside for a
// user `$fpath` file" (router.rs `has_fpath_override`). Treating that as
// failure left command-position completion dead for anyone shipping
// their own `_command_names` — `pr<TAB>` produced nothing. Fall back to
// the normal shell dispatch, which autoloads the file from `$fpath`.
//
// sh:3 — publish the line `_command_names` is called FROM. `FnScope`
// zeroes `lineno` for every port body (shared.rs), so without this the
// frame `_command_names` pushes recorded `_autocd:0` where zsh's
// `$functrace` reads `_autocd:3`.
crate::compsys::ported::shared::set_sh_lineno(3);
let ret = crate::compsys::router::dispatch_compsys("_command_names", &[])
.or_else(|| dispatch_function_call("_command_names", &[]))
.unwrap_or(1);
// sh:5 [[ -o autocd ]] && _cd || return ret
if isset(AUTOCD) {
dispatch_function_call("_cd", &[]).unwrap_or(ret)
} else {
ret
}
}
#[cfg(test)]
mod tests {
use super::*;
#[test]
fn returns_command_names_status_when_autocd_off() {
// When AUTOCD is unset (default for tests), _autocd returns
// _command_names' status (1 without registered tags).
let _g = crate::test_util::global_state_lock();
let _r = _autocd();
}
}