tailwind_css_fixes/systems/units/integer_only/
mod.rs

1use super::*;
2
3mod traits;
4
5/// Used to represent those attributes that only have integers
6#[derive(Debug, Clone)]
7pub enum NumericValue {
8    Number { n: f32, negative: bool, can_be_negative: bool },
9    Keyword(String),
10    Arbitrary(TailwindArbitrary),
11}
12
13impl NumericValue {
14    pub fn get_properties(&self, number: impl FnOnce(&f32) -> String) -> String {
15        match self {
16            Self::Number { n, .. } => number(n),
17            Self::Keyword(s) => s.to_string(),
18            Self::Arbitrary(s) => s.get_properties(),
19        }
20    }
21    pub fn write_negative(&self, f: &mut Formatter<'_>) -> std::fmt::Result {
22        match *self {
23            Self::Number { n, can_be_negative, .. } if can_be_negative && n < 0.0 => write!(f, "-"),
24            _ => write!(f, ""),
25        }
26    }
27    /// Helper to write the Display classname for a NumericValue:
28    /// - For NumericValue::Number, it will be {negative}{prefix}{abs(value)}. Example: "-order-4"
29    /// - For NumericValue::Keyword, it will be {prefix}{value}. Example: "order-none"
30    /// - For NumericValue::Arbitrary, it will be {prefix}{value}. Example: "mt-[4rem]"
31    pub fn write_class_name(&self, f: &mut Formatter, prefix: &str) -> std::fmt::Result {
32        match self {
33            Self::Number { n, .. } => {
34                self.write_negative(f)?;
35                write!(f, "{}{}", prefix, n.abs())
36            }
37            Self::Keyword(s) => write!(f, "{}{}", prefix, s),
38            Self::Arbitrary(s) => write!(f, "{}[{}]", prefix, s.get_properties()),
39        }
40    }
41}
42
43impl NumericValue {
44    /// For parsing numbers that *can* be negative.
45    pub fn negative_parser(
46        id: &'static str,
47        checker: impl Fn(&str) -> bool,
48    ) -> impl Fn(&[&str], &TailwindArbitrary, Negative) -> Result<Self> {
49        move |pattern: &[&str], arbitrary: &TailwindArbitrary, negative: Negative| {
50            let joined = pattern.join("-");
51            match pattern {
52                _ if checker(&joined) => Ok(Self::Keyword(joined)),
53                [] => Self::parse_arbitrary(arbitrary),
54                [n] => Self::parse_number(n, negative),
55                _ => Err(TailwindError::syntax_error(format!("Unknown {} pattern", id))),
56            }
57        }
58    }
59    /// For parsing numbers that *cannot* be negative.
60    pub fn positive_parser(
61        id: &'static str,
62        checker: impl Fn(&str) -> bool,
63    ) -> impl Fn(&[&str], &TailwindArbitrary) -> Result<Self> {
64        move |pattern: &[&str], arbitrary: &TailwindArbitrary| {
65            let joined = pattern.join("-");
66            match pattern {
67                _ if checker(&joined) => Ok(Self::Keyword(joined)),
68                [] => Self::parse_arbitrary(arbitrary),
69                [n] => {
70                    let i = TailwindArbitrary::from(*n).as_integer()?;
71                    Ok(Self::Number { n: i as f32, negative: false, can_be_negative: false })
72                },
73                _ => Err(TailwindError::syntax_error(format!("Unknown {} pattern", id))),
74            }
75        }
76    }
77    pub fn parse_arbitrary(arbitrary: &TailwindArbitrary) -> Result<Self> {
78        Ok(Self::Arbitrary(TailwindArbitrary::new(arbitrary)?))
79    }
80    /// Helper for negative_parser
81    pub fn parse_number(n: &str, negative: Negative) -> Result<Self> {
82        let mut n = TailwindArbitrary::from(n).as_float()?;
83        if negative.0 {
84            n = -n
85        }
86        Ok(Self::Number { n, negative: negative.0, can_be_negative: true })
87    }
88}
tailwind_css_fixes/systems/units/integer_only/mod.rs

tailwind_css_fixes/systems/units/integer_only/
mod.rs
