forked from extern/nushell
51 lines
1.2 KiB
Rust
51 lines
1.2 KiB
Rust
use crate::data::value;
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use crate::format::RenderView;
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use crate::prelude::*;
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use nu_errors::ShellError;
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use nu_protocol::Value;
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use derive_new::new;
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// An entries list is printed like this:
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//
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// name : ...
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// name2 : ...
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// another_name : ...
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#[derive(new)]
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pub struct EntriesView {
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entries: Vec<(String, String)>,
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}
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impl EntriesView {
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pub(crate) fn from_value(value: &Value) -> EntriesView {
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let descs = value.data_descriptors();
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let mut entries = vec![];
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for desc in descs {
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let value = value.get_data(&desc);
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let formatted_value = value::format_leaf(value.borrow()).plain_string(75);
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entries.push((desc.clone(), formatted_value))
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}
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EntriesView::new(entries)
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}
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}
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impl RenderView for EntriesView {
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fn render_view(&self, _host: &mut dyn Host) -> Result<(), ShellError> {
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if self.entries.is_empty() {
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return Ok(());
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}
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let max_name_size: usize = self.entries.iter().map(|(n, _)| n.len()).max().unwrap();
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for (name, value) in &self.entries {
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outln!("{:width$} : {}", name, value, width = max_name_size)
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}
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Ok(())
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}
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}
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