cynic_parser/values/
const_lists.rs

1use std::fmt;
2
3use crate::{common::IdRange, AstLookup, Span};
4
5use super::{const_value::ConstValue, iter::Iter, ConstValueId};
6
7#[derive(Clone, Copy)]
8pub struct ConstList<'a>(pub(super) super::Cursor<'a, ConstValueId>);
9
10impl<'a> ConstList<'a> {
11    pub fn is_empty(&self) -> bool {
12        self.len() == 0
13    }
14
15    pub fn len(&self) -> usize {
16        let store = &self.0.store;
17        store.lookup(self.0.id).kind.as_list().unwrap().len()
18    }
19
20    pub fn span(&self) -> Span {
21        let store = &self.0.store;
22        store.lookup(self.0.id).span
23    }
24
25    pub fn items(&self) -> Iter<'a, ConstValue<'a>> {
26        let store = &self.0.store;
27
28        let IdRange { start, end } = store.lookup(self.0.id).kind.as_list().unwrap();
29        let start = ConstValueId::new(start.get());
30        let end = ConstValueId::new(end.get());
31
32        Iter::new(IdRange { start, end }, store)
33    }
34
35    pub fn get(&self, index: usize) -> Option<ConstValue<'a>> {
36        self.items().nth(index)
37    }
38}
39
40impl fmt::Debug for ConstList<'_> {
41    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
42        f.debug_list().entries(self.items()).finish()
43    }
44}
45
46impl<'a> IntoIterator for ConstList<'a> {
47    type Item = ConstValue<'a>;
48
49    type IntoIter = Iter<'a, ConstValue<'a>>;
50
51    fn into_iter(self) -> Self::IntoIter {
52        self.items()
53    }
54}
cynic_parser/values/const_lists.rs

cynic_parser/values/
const_lists.rs
