Enum chalk_engine::Literal

pub enum Literal<C: Context, I: InferenceContext<C>> {
    Positive(I::GoalInEnvironment),
    Negative(I::GoalInEnvironment),
}

Either A or ~A, where A is a Env |- Goal.

Variants

Positive(I::GoalInEnvironment)Negative(I::GoalInEnvironment)

Trait Implementations

impl<C: Context, I: InferenceContext<C>> PartialEq for Literal<C, I>

fn eq(&self, other: &Literal<C, I>) -> bool

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

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

This method tests for !=.

impl<C: Context, I: InferenceContext<C>> Eq for Literal<C, I>

impl<C: Context, I: InferenceContext<C>> Hash for Literal<C, I>

fn hash<H: Hasher>(&self, state: &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<C: Clone + Context, I: Clone + InferenceContext<C>> Clone for Literal<C, I> where
    I::GoalInEnvironment: Clone,
    I::GoalInEnvironment: Clone, 

fn clone(&self) -> Literal<C, I>

Returns a copy of the value.

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

Performs copy-assignment from source.

impl<C: Debug + Context, I: Debug + InferenceContext<C>> Debug for Literal<C, I> where
    I::GoalInEnvironment: Debug,
    I::GoalInEnvironment: Debug, 

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

Formats the value using the given formatter.