lalrpop 0.4.0

convenient LR(1) parser generator
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31

use std::collections::{HashMap};

use grammar::parse_tree::TypeRef;
use intern::InternedString;

#[cfg(test)]
mod test;

pub struct TokenDefinition {
    // if the enum type is `foo::bar::baz<X,Y>` then:
    enum_type: TypeRef,

    // map from a custom string, like `"("` to a variant name like LPAREN
    token_map: HashMap<InternedString, InternedString>,
}

impl TokenDefinition {
    pub fn new(enum_type: TypeRef,
               token_map: Vec<(InternedString, InternedString)>)
               -> TokenDefinition
    {
        TokenDefinition {
            enum_type: enum_type,
            token_map: token_map.into_iter().collect(),
        }
    }

    pub fn enum_type(&self) -> &TypeRef {
        &self.enum_type
    }
}