27 lines
586 B
Rust
27 lines
586 B
Rust
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use crate::common::*;
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/// Parameters can either be…
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#[derive(Debug, Copy, Clone, Eq, PartialEq)]
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pub(crate) enum ParameterKind {
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/// …singular, accepting a single argument
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Singular,
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/// …variadic, accepting one or more arguments
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Plus,
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/// …variadic, accepting zero or more arguments
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Star,
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}
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impl ParameterKind {
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pub(crate) fn prefix(self) -> Option<&'static str> {
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match self {
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Self::Singular => None,
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Self::Plus => Some("+"),
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Self::Star => Some("*"),
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}
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}
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pub(crate) fn is_variadic(self) -> bool {
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self != Self::Singular
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}
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}
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