std/sys/args/
common.rs

1use crate::ffi::OsString;
2use crate::num::NonZero;
3use crate::ops::Try;
4use crate::{array, fmt, vec};
5
6pub struct Args {
7    iter: vec::IntoIter<OsString>,
8}
9
10impl !Send for Args {}
11impl !Sync for Args {}
12
13impl Args {
14    #[inline]
15    pub(super) fn new(args: Vec<OsString>) -> Self {
16        Args { iter: args.into_iter() }
17    }
18}
19
20impl fmt::Debug for Args {
21    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
22        self.iter.as_slice().fmt(f)
23    }
24}
25
26impl Iterator for Args {
27    type Item = OsString;
28
29    #[inline]
30    fn next(&mut self) -> Option<OsString> {
31        self.iter.next()
32    }
33
34    #[inline]
35    fn next_chunk<const N: usize>(
36        &mut self,
37    ) -> Result<[OsString; N], array::IntoIter<OsString, N>> {
38        self.iter.next_chunk()
39    }
40
41    #[inline]
42    fn size_hint(&self) -> (usize, Option<usize>) {
43        self.iter.size_hint()
44    }
45
46    #[inline]
47    fn count(self) -> usize {
48        self.iter.len()
49    }
50
51    #[inline]
52    fn last(mut self) -> Option<OsString> {
53        self.iter.next_back()
54    }
55
56    #[inline]
57    fn advance_by(&mut self, n: usize) -> Result<(), NonZero<usize>> {
58        self.iter.advance_by(n)
59    }
60
61    #[inline]
62    fn try_fold<B, F, R>(&mut self, init: B, f: F) -> R
63    where
64        F: FnMut(B, Self::Item) -> R,
65        R: Try<Output = B>,
66    {
67        self.iter.try_fold(init, f)
68    }
69
70    #[inline]
71    fn fold<B, F>(self, init: B, f: F) -> B
72    where
73        F: FnMut(B, Self::Item) -> B,
74    {
75        self.iter.fold(init, f)
76    }
77}
78
79impl DoubleEndedIterator for Args {
80    #[inline]
81    fn next_back(&mut self) -> Option<OsString> {
82        self.iter.next_back()
83    }
84
85    #[inline]
86    fn advance_back_by(&mut self, n: usize) -> Result<(), NonZero<usize>> {
87        self.iter.advance_back_by(n)
88    }
89}
90
91impl ExactSizeIterator for Args {
92    #[inline]
93    fn len(&self) -> usize {
94        self.iter.len()
95    }
96
97    #[inline]
98    fn is_empty(&self) -> bool {
99        self.iter.is_empty()
100    }
101}
std/sys/args/common.rs

std/sys/args/
common.rs
