Enum adapton::reflect::ArtContent

pub enum ArtContent {
    Val(Rc<Val>),
    Comp(Option<Rc<Val>>),
    Unknown,
}

The content of an articulation: Either a cell holding a value, or a thunk that has optionally produced a value.

Variants

Val(Rc<Val>)

The Art consists of a ref cell holding a value

Comp(Option<Rc<Val>>)

The Art consists of a thunk that, when forced, computes a value

Unknown

Unknown content means that it has not yet dereferenced by any reflective process. A reflective process dereferences an Art by using a reflected DCG to map this Art's Loc to a Node. This node gives one of the two known cases (Val or Comp), above, depending on whether it is a RefNode or a CompNode.

Trait Implementations

impl Debug for ArtContent

fn fmt(&self, __arg_0: &mut Formatter) -> Result

Formats the value using the given formatter.

impl Clone for ArtContent

fn clone(&self) -> ArtContent

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Hash for ArtContent

fn hash<__H: Hasher>(&self, __arg_0: &mut __H)

Feeds this value into the given [Hasher].

fn hash_slice<H>(data: &[Self], state: &mut H) where
    H: Hasher, 

Feeds a slice of this type into the given [Hasher].

impl Eq for ArtContent

impl PartialEq for ArtContent

fn eq(&self, __arg_0: &ArtContent) -> bool

This method tests for self and other values to be equal, and is used by ==.

fn ne(&self, __arg_0: &ArtContent) -> bool

This method tests for !=.