Enum Query 

pub enum Query {
    All,
    Tri(Trigram),
    And(Vec<Query>),
    Or(Vec<Query>),
}

A boolean formula over trigrams. All means “no constraint” — scan everything (the safe fallback). Leaves are individual trigrams that must be present.

Variants

All

Tri(Trigram)

And(Vec<Query>)

Or(Vec<Query>)

Implementations

impl Query

pub fn for_pattern(pattern: &str, opts: Options) -> Query

Build a trigram query for pattern. Any condition we can’t reason about soundly yields Query::All (full scan) rather than risking a missed match.

pub fn is_fallback(&self) -> bool

True if this query imposes no constraint (the engine must fall back to a full scan).

pub fn eval(&self, present: &impl Fn(Trigram) -> bool) -> bool

Evaluate against a predicate telling whether a given trigram is present in a file.

pub fn trigrams(&self, out: &mut Vec<Trigram>)

Collect the distinct trigrams referenced anywhere in the query (for index lookups).

Trait Implementations

impl Clone for Query

fn clone(&self) -> Query

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Query

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

Formats the value using the given formatter.

impl Eq for Query

impl PartialEq for Query

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