31 lines
691 B
Rust
31 lines
691 B
Rust
use crate::{jobs::JobBldr, libsh::error::{ShErr, ShErrKind, ShResult}, parse::{NdRule, Node}, state::{self, write_vars}};
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use super::setup_builtin;
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pub fn shift(node: Node, job: &mut JobBldr) -> ShResult<()> {
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let NdRule::Command { assignments: _, argv } = node.class else {
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unreachable!()
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};
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let (argv,_) = setup_builtin(argv, job, None)?;
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let mut argv = argv.into_iter();
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if let Some((arg,span)) = argv.next() {
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let Ok(count) = arg.parse::<usize>() else {
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return Err(
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ShErr::full(
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ShErrKind::ExecFail,
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"Expected a number in shift args",
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span
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)
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)
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};
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for _ in 0..count {
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write_vars(|v| v.fpop_arg());
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}
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}
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state::set_status(0);
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Ok(())
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}
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