Struct forth3::dictionary::Dictionary

pub struct Dictionary<T: 'static> {
    pub(crate) tail: Option<NonNull<DictionaryEntry<T>>>,
    pub(crate) alloc: DictionaryBump,
    refs: AtomicUsize,
    parent: Option<SharedDict<T>>,
    deallocate: unsafe fn(ptr: NonNull<u8>, layout: Layout),
}

Fields

tail: Option<NonNull<DictionaryEntry<T>>>

alloc: DictionaryBump

refs: AtomicUsize

Reference count, used to determine when the dictionary can be dropped. If this is usize::MAX, the dictionary is mutable.

parent: Option<SharedDict<T>>

Parent dictionary.

When looking up a binding that isn’t present in self, we traverse this chain of references. When dropping the dictionary, we decrement the parent’s ref count.

deallocate: unsafe fn(ptr: NonNull<u8>, layout: Layout)

Implementations

impl<T: 'static> Dictionary<T>

const MUTABLE: usize = 18_446_744_073_709_551_615usize

pub fn layout(size: usize) -> Result<Layout, LayoutError>

Returns the Layout that must be allocated for a Dictionary of the given size.

pub(crate) fn add_bi_fastr( &mut self, name: FaStr, bi: fn(_: &mut Forth<T>) -> Result<(), Error>, ) -> Result<(), BumpError>

pub(crate) fn build_entry(&mut self) -> Result<EntryBuilder<'_, T>, BumpError>

pub(crate) fn entries(&self) -> Entries<'_, T>