Struct LispStack

pub(crate) struct LispStack<'a> {
    vec: Vec<Slot<Gc<ObjectType<'a>>>>,
    current: Frame,
    frames: Vec<FrameStore<'a>>,
}

The stack of lisp objects used to pass and store arguments in the bytecode VM and interpreter. The top of the stack is index 0 and all indexing functions operate from top to bottom. The stack is partitioned into frames. Each frame represents a function call and it’s arguments. The API is designed so that code cannot access elements outside of their frame (doing so results in a panic). Frames are added and removed with push_frame and pop_frame respectively.

Fields

vec: Vec<Slot<Gc<ObjectType<'a>>>>

current: Frame

frames: Vec<FrameStore<'a>>

Trait Implementations

impl<'a> Default for LispStack<'a>

fn default() -> LispStack<'a>

Returns the “default value” for a type.

impl<'a> RootedDeref for LispStack<'a>

type Target = RootedLispStack<'a>

fn rooted_deref(rooted: &Rt<Self>) -> &Self::Target

fn rooted_derefmut(rooted: &mut Rt<Self>) -> &mut Self::Target

impl<'a> Trace for LispStack<'a>

fn trace(&self, state: &mut GcState)

impl<'a> Debug for LispStack<'a>

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

Formats the value using the given formatter.