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use crate::{span::Span, Spanned};
use std::{
cmp::{Ord, Ordering},
fmt,
hash::{Hash, Hasher},
};
#[derive(Debug, Clone)]
pub struct Ident {
name_override_opt: Option<&'static str>,
span: Span,
is_raw_ident: bool,
}
impl Hash for Ident {
fn hash<H: Hasher>(&self, state: &mut H) {
self.as_str().hash(state);
}
}
impl PartialEq for Ident {
fn eq(&self, other: &Self) -> bool {
self.as_str() == other.as_str()
}
}
impl Ord for Ident {
fn cmp(&self, other: &Self) -> Ordering {
self.as_str().cmp(other.as_str())
}
}
impl PartialOrd for Ident {
fn partial_cmp(&self, other: &Self) -> Option<Ordering> {
Some(self.cmp(other))
}
}
impl Eq for Ident {}
impl Spanned for Ident {
fn span(&self) -> Span {
self.span.clone()
}
}
impl fmt::Display for Ident {
fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result {
write!(formatter, "{}", self.as_str())
}
}
impl Ident {
pub fn as_str(&self) -> &str {
self.name_override_opt.unwrap_or_else(|| self.span.as_str())
}
pub fn is_raw_ident(&self) -> bool {
self.is_raw_ident
}
pub fn new(span: Span) -> Ident {
let span = span.trim();
Ident {
name_override_opt: None,
span,
is_raw_ident: false,
}
}
pub fn new_no_trim(span: Span) -> Ident {
Ident {
name_override_opt: None,
span,
is_raw_ident: false,
}
}
pub fn new_with_raw(span: Span, is_raw_ident: bool) -> Ident {
let span = span.trim();
Ident {
name_override_opt: None,
span,
is_raw_ident,
}
}
pub fn new_with_override(name_override: &'static str, span: Span) -> Ident {
Ident {
name_override_opt: Some(name_override),
span,
is_raw_ident: false,
}
}
pub fn new_no_span(name: &'static str) -> Ident {
Ident {
name_override_opt: Some(name),
span: Span::dummy(),
is_raw_ident: false,
}
}
}