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//! Component identifiers
//!
//! By convention these are Rust paths to the component types
// TODO(tarcieri): enforce this convention via e.g. custom derive?
use std::fmt;
/// Identifier for an individual component
///
/// This should ideally match the Rust path name to the corresponding type.
// TODO(tarcieri): obtain this automatically via `std::module_path`?
#[derive(Copy, Clone, Debug, Eq, Hash, PartialEq, Ord, PartialOrd)]
pub struct Id(&'static str);
impl Id {
/// Create a new component identifier
// TODO(tarcieri): make this method private in the future
pub const fn new(id: &'static str) -> Id {
Id(id)
}
}
impl AsRef<str> for Id {
fn as_ref(&self) -> &str {
self.0
}
}
impl fmt::Display for Id {
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
write!(f, "{}", self.0)
}
}