valkyrie-ast 0.0.11

Strong typed abstract syntax tree of valkyrie language
Documentation 
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
32
33
34
35
36

use super::*;

impl PrettyPrint for SubscriptNode {
    fn build<'a>(&self, allocator: &'a PrettyProvider<'a>) -> PrettyTree<'a> {
        let lhs = allocator.text(if self.index0 { "⁅" } else { "[" });
        let terms = allocator.join(&self.terms, ", ");
        let rhs = allocator.text(if self.index0 { "⁆" } else { "]" });
        lhs.append(terms).append(rhs)
    }
}

impl PrettyPrint for SubscriptTermNode {
    fn build<'a>(&self, allocator: &'a PrettyProvider<'a>) -> PrettyTree<'a> {
        match self {
            SubscriptTermNode::Index(v) => v.build(allocator),
            SubscriptTermNode::Slice(v) => v.build(allocator),
        }
    }
}

impl PrettyPrint for SubscriptSliceNode {
    fn build<'a>(&self, allocator: &'a PrettyProvider<'a>) -> PrettyTree<'a> {
        let lhs = match &self.start {
            Some(s) => s.build(allocator).append(allocator.text(":")),
            None => allocator.text(":"),
        };
        let middle = match &self.end {
            Some(e) => allocator.text(":").append(e.build(allocator)),
            None => allocator.text(" :"),
        };
        match &self.step {
            Some(s) => lhs.append(middle).append(s.build(allocator)),
            None => lhs.append(middle),
        }
    }
}