Trait oftlisp::InterpreterContext

pub trait InterpreterContext: Context + Sized {
    type RuntimeError: Debug;
    fn eval(
        expr: Gc<Self::Expr>, 
        env: &mut GcLinkedList<(Symbol, Gc<Value<Self>>)>
    ) -> Result<Gc<Value<Self>>, Self::RuntimeError>;
    fn primitives() -> HashMap<Symbol, Gc<Value<Self>>>;
}

A Context that allows for the running of OftLisp code.

Associated Types

type RuntimeError: Debug

An error encountered at runtime.

Required Methods

fn eval(
    expr: Gc<Self::Expr>,
    env: &mut GcLinkedList<(Symbol, Gc<Value<Self>>)>
) -> Result<Gc<Value<Self>>, Self::RuntimeError>

Evaluates an expression.

fn primitives() -> HashMap<Symbol, Gc<Value<Self>>>

Returns the values in the std/internal/primitives module.

Implementors