teo_parser/format/
writer.rs

1use std::collections::btree_map::Values;
2use crate::ast::node::Node;
3use crate::format::command::Command;
4use crate::format::flusher::Flusher;
5use crate::format::Preferences;
6use crate::traits::write::Write;
7
8pub struct Writer<'a> {
9    pub(super) preferences: Preferences,
10    pub(super) commands: Vec<Command<'a>>,
11    can_write: bool,
12}
13
14impl Default for Writer<'_> {
15    fn default() -> Self {
16        Self::new(Preferences::default())
17    }
18}
19
20impl<'a> Writer<'a> {
21
22    pub fn new(preferences: Preferences) -> Self {
23        Self {
24            preferences,
25            commands: vec![],
26            can_write: true,
27        }
28    }
29
30    pub fn write_children(&mut self, node: &'a dyn Write, children: Values<'a, usize, Node>) {
31        if !self.can_write {
32            panic!("writer can only write only once in one call");
33        }
34        let mut writer: Writer = Self::new(self.preferences);
35        for c in children {
36            c.write(&mut writer);
37            writer.can_write = true;
38        }
39        self.commands.push(Command::branch(node, writer.commands));
40        self.can_write = false;
41    }
42
43    pub fn write_content(&mut self, node: &'a dyn Write, content: &'a str) {
44        if !self.can_write {
45            panic!("writer can only write only once in one call");
46        }
47        self.commands.push(Command::leaf(node, vec![content.as_ref()]));
48        self.can_write = false;
49    }
50
51    pub fn write_contents(&mut self, node: &'a dyn Write, contents: Vec<&'a str>) {
52        if !self.can_write {
53            panic!("writer can only write only once in one call");
54        }
55        self.commands.push(Command::leaf(node, contents));
56        self.can_write = false;
57    }
58
59    pub fn flush(&self) -> String {
60        let mut flusher = Flusher::new_from_beginning(&self.commands, self.preferences);
61        flusher.flush()
62    }
63}
teo_parser/format/writer.rs

teo_parser/format/
writer.rs
