Enum oftlisp::ast::Expr

pub enum Expr<C: 'static + Context> {
    Call(Gc<Expr<C>>, Vec<Gc<Expr<C>>>),
    Def(Symbol, Gc<Expr<C>>),
    If(Gc<Expr<C>>, Gc<Expr<C>>, Gc<Expr<C>>),
    Lambda(Option<Symbol>, Gc<Args<C>>, Vec<Gc<Expr<C>>>, Gc<Expr<C>>),
    Literal(Gc<Value<C>>),
    Progn(Vec<Gc<Expr<C>>>),
    Variable(Symbol),
    Vector(Vec<Gc<Expr<C>>>),
}

An expression.

Variants

Call(Gc<Expr<C>>, Vec<Gc<Expr<C>>>)

A function call.

Def(Symbol, Gc<Expr<C>>)

A variable or function declaration.

If(Gc<Expr<C>>, Gc<Expr<C>>, Gc<Expr<C>>)

A conditional.

Lambda(Option<Symbol>, Gc<Args<C>>, Vec<Gc<Expr<C>>>, Gc<Expr<C>>)

A function literal.

Literal(Gc<Value<C>>)

A literal value.

Progn(Vec<Gc<Expr<C>>>)

A block of expressions in a new scope.

Variable(Symbol)

A variable.

Vector(Vec<Gc<Expr<C>>>)

A vector literal.

Methods

impl<C: 'static + Context> Expr<C>

fn to_value(&self) -> Gc<Value<C>>

Converts an Expr to a Value.

Trait Implementations

impl<C: 'static + Context> Finalize for Expr<C>

fn finalize(&self)

impl<C: 'static + Context> Trace for Expr<C>

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<C: 'static + Context> Drop for Expr<C>

fn drop(&mut self)

Executes the destructor for this type.

impl<C: 'static + Context> Clone for Expr<C>

fn clone(&self) -> Self

Returns a copy of the value.

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

Performs copy-assignment from source.

impl<C: 'static + Context> Debug for Expr<C>

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

Formats the value using the given formatter.

impl<C: 'static + Context> Display for Expr<C>

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

Formats the value using the given formatter.