vicis-core 0.2.0

Manipulate LLVM-IR in Pure Rust
Documentation 
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

pub mod parser;

use crate::ir::util::escape;
pub use parser::parse;

use std::fmt;

#[derive(Clone, Eq, PartialEq, Hash)]
pub enum Name {
    Name(String),
    Number(usize),
}

impl Name {
    pub fn as_string(&self) -> &String {
        match self {
            Self::Name(name) => name,
            _ => panic!(),
        }
    }

    pub fn as_number(&self) -> &usize {
        match self {
            Self::Number(n) => n,
            _ => panic!(),
        }
    }

    pub fn to_string(&self) -> Option<&String> {
        match self {
            Self::Name(name) => Some(name),
            _ => None,
        }
    }
}

impl fmt::Debug for Name {
    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
        match self {
            Self::Name(name) => to_escaped(f, name),
            Self::Number(num) => write!(f, "{}", num),
        }
    }
}

impl fmt::Display for Name {
    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
        match self {
            Self::Name(name) => to_escaped(f, name),
            Self::Number(num) => write!(f, "{}", num),
        }
    }
}

fn to_escaped(f: &mut fmt::Formatter<'_>, s: &str) -> fmt::Result {
    if s.find(|c: char| !(c.is_ascii_alphanumeric() || c == '.' || c == '_'))
        .is_some()
    {
        write!(f, r#""{}""#, escape(s))
    } else {
        write!(f, "{}", escape(s))
    }
}