Enum EvalMode 

pub enum EvalMode {
    Eval,
    Logic,
}

Which evaluation discipline a request runs under.

Variants

Eval

Ordinary expression evaluation (the default).

Logic

Relational/logic evaluation that may yield multiple answers.

Implementations

impl EvalMode

pub fn as_symbol(self) -> Symbol

Returns the canonical symbol naming this evaluation mode.

Trait Implementations

impl Clone for EvalMode

fn clone(&self) -> EvalMode

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for EvalMode

impl Debug for EvalMode

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

Formats the value using the given formatter.

impl Default for EvalMode

fn default() -> EvalMode

Returns the “default value” for a type.

impl Eq for EvalMode

impl PartialEq for EvalMode

fn eq(&self, other: &EvalMode) -> bool

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl StructuralPartialEq for EvalMode