mir_analyzer/
php_version.rs

1//! Target PHP language version.
2//!
3//! Used by the analyzer and stub loader to make version-conditional decisions
4//! (e.g. filtering stub symbols by `@since`/`@removed` markers). The type is
5//! `Copy` and stores only major/minor — patch level is parsed but discarded,
6//! since language features track the minor release.
7use std::fmt;
8use std::str::FromStr;
9
10#[derive(Debug, Clone, Copy, PartialEq, Eq, PartialOrd, Ord, Hash)]
11pub struct PhpVersion {
12    major: u8,
13    minor: u8,
14}
15
16impl PhpVersion {
17    pub const fn new(major: u8, minor: u8) -> Self {
18        Self { major, minor }
19    }
20
21    pub const fn major(self) -> u8 {
22        self.major
23    }
24
25    pub const fn minor(self) -> u8 {
26        self.minor
27    }
28}
29
30impl Default for PhpVersion {
31    fn default() -> Self {
32        Self::new(8, 2)
33    }
34}
35
36impl fmt::Display for PhpVersion {
37    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
38        write!(f, "{}.{}", self.major, self.minor)
39    }
40}
41
42#[derive(Debug, thiserror::Error)]
43#[error("invalid PHP version `{0}`: expected `MAJOR.MINOR` (e.g. `8.2`)")]
44pub struct ParsePhpVersionError(pub String);
45
46impl FromStr for PhpVersion {
47    type Err = ParsePhpVersionError;
48
49    fn from_str(s: &str) -> Result<Self, Self::Err> {
50        let mut parts = s.trim().split('.');
51        let major = parts
52            .next()
53            .and_then(|p| p.parse::<u8>().ok())
54            .ok_or_else(|| ParsePhpVersionError(s.to_string()))?;
55        let minor = parts.next().and_then(|p| p.parse::<u8>().ok()).unwrap_or(0);
56        // Ignore any patch component — language features track the minor release.
57        Ok(Self::new(major, minor))
58    }
59}
60
61#[cfg(test)]
62mod tests {
63    use super::*;
64
65    #[test]
66    fn parses_major_minor() {
67        assert_eq!("8.2".parse::<PhpVersion>().unwrap(), PhpVersion::new(8, 2));
68    }
69
70    #[test]
71    fn parses_major_minor_patch() {
72        assert_eq!(
73            "8.3.7".parse::<PhpVersion>().unwrap(),
74            PhpVersion::new(8, 3)
75        );
76    }
77
78    #[test]
79    fn parses_major_only() {
80        assert_eq!("7".parse::<PhpVersion>().unwrap(), PhpVersion::new(7, 0));
81    }
82
83    #[test]
84    fn rejects_garbage() {
85        assert!("x.y".parse::<PhpVersion>().is_err());
86        assert!("".parse::<PhpVersion>().is_err());
87    }
88
89    #[test]
90    fn ordered_by_major_then_minor() {
91        assert!(PhpVersion::new(8, 1) < PhpVersion::new(8, 2));
92        assert!(PhpVersion::new(7, 4) < PhpVersion::new(8, 0));
93    }
94
95    #[test]
96    fn displays_as_major_dot_minor() {
97        assert_eq!(PhpVersion::new(8, 3).to_string(), "8.3");
98    }
99}
mir_analyzer/php_version.rs

mir_analyzer/
php_version.rs
