aldrin_parser/ast/
ident.rs

1use crate::error::InvalidIdent;
2use crate::grammar::Rule;
3use crate::validate::Validate;
4use crate::warning::ReservedIdent;
5use crate::Span;
6use pest::iterators::Pair;
7
8#[derive(Debug, Clone)]
9pub struct Ident {
10    span: Span,
11    value: String,
12}
13
14impl Ident {
15    pub(crate) fn parse(pair: Pair<Rule>) -> Self {
16        assert_eq!(pair.as_rule(), Rule::ident);
17
18        Self {
19            span: Span::from_pair(&pair),
20            value: pair.as_str().to_owned(),
21        }
22    }
23
24    pub(crate) fn validate(&self, is_def: bool, validate: &mut Validate) {
25        if is_def {
26            InvalidIdent::validate(self, validate);
27            ReservedIdent::validate(self, validate);
28        }
29    }
30
31    pub(crate) fn is_valid(ident: &str) -> bool {
32        !ident.is_empty()
33            && ident.chars().enumerate().all(|(i, c)| {
34                (c == '_')
35                    || if i == 0 {
36                        c.is_ascii_alphabetic()
37                    } else {
38                        c.is_ascii_alphanumeric()
39                    }
40            })
41    }
42
43    pub fn span(&self) -> Span {
44        self.span
45    }
46
47    pub fn value(&self) -> &str {
48        &self.value
49    }
50}
aldrin_parser/ast/ident.rs

aldrin_parser/ast/
ident.rs
