Enum PrologItem 

pub enum PrologItem {
    Directive(PrologDirective),
    Predicate(PrologPredicate),
    Clause(PrologClause),
    Dcg(DcgRule),
    BlankLine,
    SectionComment(String),
    LineComment(String),
}

An item at the top level of a Prolog source file.

Variants

Directive(PrologDirective)

A top-level directive.

Predicate(PrologPredicate)

A predicate (grouped clauses).

Clause(PrologClause)

A standalone clause (not grouped into a predicate).

Dcg(DcgRule)

A DCG grammar rule.

BlankLine

A blank line separator (for readability).

SectionComment(String)

A section comment % === ... ===.

LineComment(String)

A line comment.

Implementations

impl PrologItem

pub fn emit(&self) -> String

Emit this item as a Prolog string.

Trait Implementations

impl Clone for PrologItem

fn clone(&self) -> PrologItem

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for PrologItem

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

Formats the value using the given formatter.

impl PartialEq for PrologItem

fn eq(&self, other: &PrologItem) -> 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 PrologItem