Struct BuiltinFn 

pub struct BuiltinFn {
    pub name: &'static str,
    pub runtime_fn: &'static str,
    pub arities: &'static [usize],
    pub shape: BuiltinShape,
    pub hint: &'static str,
}

One builtin: its name, the doge-runtime function a call emits, the argument counts it accepts, its emission shape, and the call-shape hint for arity diagnostics.

Fields

name: &'static str

runtime_fn: &'static str

arities: &'static [usize]

shape: BuiltinShape

hint: &'static str

Implementations

impl BuiltinFn

pub fn accepts(&self, argc: usize) -> bool

Whether a call with argc arguments has a valid arity for this builtin.

pub fn arity_phrase(&self) -> String

The accepted-argument phrase for an arity diagnostic, e.g. 1 argument or 1 or 2 arguments.