just/src/line.rs

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Rust
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use super::*;
/// A single line in a recipe body, consisting of any number of `Fragment`s.
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#[derive(Debug, Clone, PartialEq, Serialize)]
#[serde(transparent)]
pub(crate) struct Line<'src> {
pub(crate) fragments: Vec<Fragment<'src>>,
}
impl<'src> Line<'src> {
pub(crate) fn is_empty(&self) -> bool {
self.fragments.is_empty()
}
pub(crate) fn is_comment(&self) -> bool {
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matches!(
self.fragments.first(),
Some(Fragment::Text { token }) if token.lexeme().starts_with('#'),
)
}
pub(crate) fn is_continuation(&self) -> bool {
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matches!(
self.fragments.last(),
Some(Fragment::Text { token }) if token.lexeme().ends_with('\\'),
)
}
pub(crate) fn is_shebang(&self) -> bool {
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matches!(
self.fragments.first(),
Some(Fragment::Text { token }) if token.lexeme().starts_with("#!"),
)
}
pub(crate) fn is_quiet(&self) -> bool {
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matches!(
self.fragments.first(),
Some(Fragment::Text { token })
if token.lexeme().starts_with('@') || token.lexeme().starts_with("-@"),
)
}
pub(crate) fn is_infallible(&self) -> bool {
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matches!(
self.fragments.first(),
Some(Fragment::Text { token })
if token.lexeme().starts_with('-') || token.lexeme().starts_with("@-"),
)
}
}