File: empty.rs

package info (click to toggle)
rustc-web 1.78.0%2Bdfsg1-2~deb11u3
  • links: PTS, VCS
  • area: main
  • in suites: bullseye
  • size: 1,245,360 kB
  • sloc: xml: 147,985; javascript: 18,022; sh: 11,083; python: 10,265; ansic: 6,172; cpp: 5,023; asm: 4,390; makefile: 4,269
file content (65 lines) | stat: -rw-r--r-- 1,651 bytes parent folder | download | duplicates (7)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
#[allow(unused)]
use std::{ffi::OsString, path::PathBuf};

#[derive(Debug)]
pub struct Empty;

impl Empty {
    #[allow(dead_code)]
    pub fn from_env_or_exit() -> Self {
        Self::from_env_or_exit_()
    }

    #[allow(dead_code)]
    pub fn from_env() -> xflags::Result<Self> {
        Self::from_env_()
    }

    #[allow(dead_code)]
    pub fn from_vec(args: Vec<std::ffi::OsString>) -> xflags::Result<Self> {
        Self::from_vec_(args)
    }
}

impl Empty {
    fn from_env_or_exit_() -> Self {
        Self::from_env_().unwrap_or_else(|err| err.exit())
    }
    fn from_env_() -> xflags::Result<Self> {
        let mut p = xflags::rt::Parser::new_from_env();
        Self::parse_(&mut p)
    }
    fn from_vec_(args: Vec<std::ffi::OsString>) -> xflags::Result<Self> {
        let mut p = xflags::rt::Parser::new(args);
        Self::parse_(&mut p)
    }
}

impl Empty {
    fn parse_(p_: &mut xflags::rt::Parser) -> xflags::Result<Self> {
        #![allow(non_snake_case, unused_mut)]

        let mut state_ = 0u8;
        while let Some(arg_) = p_.pop_flag() {
            match arg_ {
                Ok(flag_) => match (state_, flag_.as_str()) {
                    (0, "--help" | "-h") => return Err(p_.help(Self::HELP_)),
                    _ => return Err(p_.unexpected_flag(&flag_)),
                },
                Err(arg_) => match (state_, arg_.to_str().unwrap_or("")) {
                    _ => return Err(p_.unexpected_arg(arg_)),
                },
            }
        }
        Ok(Empty {})
    }
}
impl Empty {
    const HELP_: &'static str = "\
empty

OPTIONS:
    -h, --help
      Prints help information.
";
}