Struct Lambda 

pub struct Lambda {
    pub params: Vec<String>,
    pub rest: Option<String>,
    pub body: Vec<Sexp>,
    pub env: Env,
    pub name: Option<String>,
}

A user-defined closure — captures its lexical environment.

Fields

params: Vec<String>

rest: Option<String>

If present, extra args bind to this single name as a list (rest-args).

body: Vec<Sexp>

env: Env

name: Option<String>