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//! This example demonstrates a minimalist implementation of [`Tabling`](Table) records
//! with struct fields.
//!
//! * This second nested [`Table`] example showcases the [`derive`] approach.
//!
//! * Note how the [`display_with`] attribute macro applies the custom `display_distribution`
//! filter function, which, in this case, applies styles to the final display.
use tabled::{settings::Style, Table, Tabled};
#[derive(Tabled)]
struct Vendor {
name: &'static str,
#[tabled(display_with = "display_distribution")]
main_os: Distribution,
#[tabled(display_with = "display_distribution")]
switch_os: Distribution,
}
impl Vendor {
fn new(name: &'static str, main_os: Distribution, switch_os: Distribution) -> Self {
Self {
name,
main_os,
switch_os,
}
}
}
fn display_distribution(d: &Distribution) -> String {
Table::new([d]).with(Style::extended()).to_string()
}
#[derive(Tabled)]
struct Distribution {
name: &'static str,
#[tabled(display_with = "Self::display_based_on")]
based_on: Option<&'static str>,
is_active: bool,
is_cool: bool,
}
impl Distribution {
fn display_based_on(o: &Option<&'static str>) -> String {
match o {
&Some(s) => s.into(),
None => "Independent".into(),
}
}
}
impl Distribution {
fn new(
name: &'static str,
based_on: Option<&'static str>,
is_active: bool,
is_cool: bool,
) -> Self {
Self {
name,
based_on,
is_active,
is_cool,
}
}
}
fn main() {
let data = [
Vendor::new(
"Azure",
Distribution::new("Windows", None, true, true),
Distribution::new("Manjaro", Some("Arch"), true, true),
),
Vendor::new(
"AWS",
Distribution::new("Debian", None, true, true),
Distribution::new("Arch", None, true, true),
),
Vendor::new(
"GCP",
Distribution::new("Debian", None, true, true),
Distribution::new("Arch", None, true, true),
),
];
let table = Table::new(data).with(Style::modern()).to_string();
println!("{table}");
}
|
