oom/match/
traits.rs

1use std::fmt::{Debug, Display};
2use std::ops::{Range, RangeBounds};
3
4use unique_pointer::UniquePointer;
5
6use crate::{Match, Position, Production, Span, State};
7
8pub trait Literal: Sized + Display + Debug + Clone {}
9pub trait StackRange: RangeBounds<isize> + Debug + Clone {}
10
11pub trait Matcher: Sized + Debug + Clone {
12    fn name(&self) -> &str;
13    fn to_str(&self) -> String;
14    fn as_production(&self) -> Production;
15    fn is_match(&self, state: &mut State, input: &str, start: &Position) -> Option<Match> {
16        None
17    }
18    fn as_mut(&self) -> &mut Self {
19        UniquePointer::read_only(self).extend_lifetime_mut()
20    }
21    fn to_dbg(&self) -> String {
22        format!("{:#?}", self.to_str())
23    }
24    fn span(&self, start: &Position, input: &str) -> Span {
25        start.span_to(input)
26    }
27}
28
29#[macro_export]
30macro_rules! impl_matcher_for_ref {
31    ($($type:tt)*) => {
32        impl Matcher for &$($type)* {
33            fn is_match(&self, state: &mut State, input: &str, start: &Position) -> Option<Match> {
34                (*self).is_match(state, input, start)
35            }
36
37            fn name(&self) -> &str {
38                (*self).name()
39            }
40
41            fn to_str(&self) -> String {
42                (*self).to_str()
43            }
44
45            fn as_production(&self) -> Production {
46                (*self).as_production()
47            }
48        }
49    };
50}
oom/match/traits.rs

oom/match/
traits.rs
