Struct Signature 

pub struct Signature {
    pub name: &'static str,
    pub params: &'static [Param],
    pub tail: Tail,
    pub result: fn(&[Ty]) -> Result<Ty, Mismatch>,
}

Fields

name: &'static str

params: &'static [Param]

tail: Tail

The most positionals it takes past its own, where it takes more.

result: fn(&[Ty]) -> Result<Ty, Mismatch>

Implementations

impl Signature

pub fn named(&self) -> &'static [&'static str]

One table per name, held where the CLI already prints it from.

pub fn required(&self) -> usize

pub fn most(&self) -> Option<usize>

None where no count is too many.