just/src/parameter.rs
2021-11-17 00:07:48 -08:00

31 lines
906 B
Rust

use crate::common::*;
/// A single function parameter
#[derive(PartialEq, Debug, Clone, Serialize)]
pub(crate) struct Parameter<'src> {
/// An optional default expression
pub(crate) default: Option<Expression<'src>>,
/// Export parameter as environment variable
pub(crate) export: bool,
/// The kind of parameter
pub(crate) kind: ParameterKind,
/// The parameter name
pub(crate) name: Name<'src>,
}
impl<'src> ColorDisplay for Parameter<'src> {
fn fmt(&self, f: &mut Formatter, color: Color) -> Result<(), fmt::Error> {
if self.export {
write!(f, "$")?;
}
if let Some(prefix) = self.kind.prefix() {
write!(f, "{}", color.annotation().paint(prefix))?;
}
write!(f, "{}", color.parameter().paint(self.name.lexeme()))?;
if let Some(ref default) = self.default {
write!(f, "={}", color.string().paint(&default.to_string()))?;
}
Ok(())
}
}