just/src/alias.rs

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Rust
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use crate::common::*;
/// An alias, e.g. `name := target`
2021-06-08 01:01:27 -07:00
#[derive(Debug, PartialEq, Clone)]
pub(crate) struct Alias<'src, T = Rc<Recipe<'src>>> {
pub(crate) name: Name<'src>,
pub(crate) target: T,
}
impl<'src> Alias<'src, Name<'src>> {
pub(crate) fn line_number(&self) -> usize {
self.name.line
}
pub(crate) fn resolve(self, target: Rc<Recipe<'src>>) -> Alias<'src> {
assert_eq!(self.target.lexeme(), target.name.lexeme());
Alias {
name: self.name,
target,
}
}
}
impl Alias<'_> {
pub(crate) fn is_private(&self) -> bool {
self.name.lexeme().starts_with('_')
}
}
impl<'src, T> Keyed<'src> for Alias<'src, T> {
fn key(&self) -> &'src str {
self.name.lexeme()
}
}
impl<'src> Display for Alias<'src, Name<'src>> {
fn fmt(&self, f: &mut Formatter) -> fmt::Result {
write!(
f,
"alias {} := {}",
self.name.lexeme(),
self.target.lexeme()
)
}
}
impl<'src> Display for Alias<'src> {
fn fmt(&self, f: &mut Formatter) -> fmt::Result {
write!(
f,
"alias {} := {}",
self.name.lexeme(),
self.target.name.lexeme()
)
}
}