moxy_token/lit/
bool.rs

1use crate::lex::Cursor;
2use crate::lit::Lit;
3use crate::{Ident, LexError, Scan, Span, Spanner};
4
5#[derive(Debug, Clone)]
6#[cfg_attr(feature = "serde", derive(serde::Serialize), serde(into = "String"))]
7pub struct LitBool {
8    value: bool,
9    span: Span,
10}
11
12impl LitBool {
13    #[inline]
14    pub fn new(value: bool, span: Span) -> Self {
15        Self { value, span }
16    }
17
18    #[inline]
19    pub fn value(&self) -> bool {
20        self.value
21    }
22
23    #[inline]
24    pub fn repr(&self) -> &str {
25        if self.value { "true" } else { "false" }
26    }
27
28    #[inline]
29    pub fn span(&self) -> Span {
30        self.span
31    }
32
33    #[inline]
34    pub fn set_span(&mut self, span: Span) {
35        self.span = span;
36    }
37}
38
39impl PartialEq for LitBool {
40    fn eq(&self, other: &Self) -> bool {
41        self.value == other.value
42    }
43}
44
45impl Eq for LitBool {}
46
47impl std::hash::Hash for LitBool {
48    fn hash<H: std::hash::Hasher>(&self, state: &mut H) {
49        self.value.hash(state);
50    }
51}
52
53impl std::fmt::Display for LitBool {
54    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
55        f.write_str(self.repr())
56    }
57}
58
59impl Spanner for LitBool {
60    fn span(&self) -> Span {
61        self.span
62    }
63}
64
65impl From<LitBool> for Lit {
66    fn from(value: LitBool) -> Self {
67        Self::Bool(value)
68    }
69}
70
71impl Scan for LitBool {
72    fn scan(cursor: Cursor<'_>) -> Result<(Cursor<'_>, Self), LexError> {
73        let (cursor, ident) = Ident::scan(cursor)?;
74
75        if !ident.is_raw() && (ident.text() == "true" || ident.text() == "false") {
76            Ok((cursor, Self::new(ident.text() == "true", ident.span())))
77        } else {
78            cursor.error().message("expected bool literal").into()
79        }
80    }
81}
82
83#[cfg(feature = "serde")]
84impl From<LitBool> for String {
85    fn from(value: LitBool) -> Self {
86        value.repr().to_string()
87    }
88}
moxy_token/lit/bool.rs

moxy_token/lit/
bool.rs
