use std::any::{type_name, Any};
use std::collections::hash_map::DefaultHasher;
use std::fmt::{Display, Formatter, Result as FormatResult};
use std::hash::{Hash, Hasher};
#[derive(Clone, Debug, Eq)]
pub struct Type {
id: u64,
name: String,
}
impl Type {
pub fn of<T: Any + ?Sized>() -> Self {
let name = type_name::<T>().to_string();
let mut hasher = DefaultHasher::new();
name.hash(&mut hasher);
Self {
id: hasher.finish(),
name,
}
}
pub fn id(&self) -> u64 {
self.id
}
pub fn name(&self) -> &str {
&self.name
}
}
impl PartialEq<Type> for Type {
fn eq(&self, other: &Self) -> bool {
self.id == other.id
}
}
impl PartialEq<Type> for &Type {
fn eq(&self, other: &Type) -> bool {
self.id == other.id
}
}
impl Hash for Type {
fn hash<H: Hasher>(&self, state: &mut H) {
self.id.hash(state);
}
}
impl Display for Type {
fn fmt(&self, formatter: &mut Formatter<'_>) -> FormatResult {
formatter.write_str(&self.name)
}
}