kutil_cli/debug/utils/
list.rs

1use super::super::{context::*, debuggable::*, format::*};
2
3use std::io::*;
4
5/// Debug into list item.
6pub const DEBUG_INTO_LIST_ITEM: &str = "•";
7
8/// Write an [Iterator] of [Debuggable] as a list.
9///
10/// Supports [DebugFormat::Compact].
11pub fn write_debug_as_list<'own, ItemT, IteratorT, WriteT>(
12    iterator: IteratorT,
13    override_format: Option<DebugFormat>,
14    writer: &mut WriteT,
15    context: &DebugContext,
16) -> Result<()>
17where
18    ItemT: Debuggable + 'own,
19    IteratorT: Iterator<Item = &'own ItemT>,
20    WriteT: Write,
21{
22    let mut iterator = iterator.peekable();
23
24    if iterator.peek().is_none() {
25        context.separate(writer)?;
26        return context.theme.write_delimiter(writer, "[]");
27    }
28
29    let format = match override_format {
30        Some(format) => format,
31        None => context.format.clone(),
32    };
33
34    match format {
35        DebugFormat::Compact => {
36            context.separate(writer)?;
37            context.theme.write_delimiter(writer, "[")?;
38
39            let child_context = context.child().with_separator(false);
40
41            while let Some(item) = iterator.next() {
42                item.write_debug_for(writer, &child_context)?;
43                if iterator.peek().is_some() {
44                    context.theme.write_delimiter(writer, ",")?;
45                }
46            }
47
48            context.theme.write_delimiter(writer, "]")
49        }
50
51        DebugFormat::Reduced | DebugFormat::Verbose => {
52            let child_context = context.child().with_separator(true).increase_indentation();
53
54            let mut first = true;
55            for item in iterator {
56                context.separate_or_indent_into(writer, DEBUG_INTO_LIST_ITEM, first)?;
57                item.write_debug_for(writer, &child_context)?;
58
59                first = false;
60            }
61
62            Ok(())
63        }
64    }
65}
kutil_cli/debug/utils/list.rs

kutil_cli/debug/utils/
list.rs
