Enum Prim

pub enum Prim {
    Fn(Option<Symbol>, Gc<Args<Context>>, Gc<Expr>),
    Lit(Gc<Value<Context>>),
    Var(Symbol),
    Vec(Vec<Gc<Prim>>),
}

A primitive expression, i.e. one that immediately normalizes.

Variants

Fn(Option<Symbol>, Gc<Args<Context>>, Gc<Expr>)

A function literal, i.e. a lambda.

Lit(Gc<Value<Context>>)

A literal value.

Var(Symbol)

A variable.

Vec(Vec<Gc<Prim>>)

A literal vector.

Implementations

impl Prim

pub fn freevars(&self) -> BTreeSet<Symbol>

Returns the free variables of the expression.

Trait Implementations

impl Clone for Prim

fn clone(&self) -> Prim

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for Prim

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Display for Prim

fn fmt(&self, fmt: &mut Formatter<'_>) -> FmtResult

Formats the value using the given formatter.

impl Drop for Prim

fn drop(&mut self)

Executes the destructor for this type.

impl Finalize for Prim

fn finalize(&self)

impl PartialEq for Prim

fn eq(&self, other: &Prim) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Trace for Prim

unsafe fn trace(&self)

Marks all contained Gcs.

unsafe fn root(&self)

Increments the root-count of all contained Gcs.

unsafe fn unroot(&self)

Decrements the root-count of all contained Gcs.

fn finalize_glue(&self)

Runs Finalize::finalize() on this object and all contained subobjects

impl StructuralPartialEq for Prim