Class Codegen

cranelift/isle/isle/src/codegen.rs:70–75

#[derive(Clone, Debug)]
struct Codegen<'a> {
    files: Arc<Files>,
    typeenv: &'a TypeEnv,
    termenv: &'a TermEnv,
    terms: &'a [(TermId, RuleSet)],
}

enum Nested<'a> {
    Cases(Iter<'a, EvalStep>),