Struct Pull 

pub struct Pull { /* private fields */ }

An immutable Pull specification. Build it up with the fluent methods and render with Pull::to_edn.

Implementations

impl Pull

pub fn new() -> Self

An empty pull pattern.

pub fn wildcard(self) -> Self

Selects everything (*).

pub fn db_id(self) -> Self

Selects the entity id (:db/id).

pub fn attr(self, attr: impl Into<Attr>) -> Self

Selects a forward attribute by "ns/name".

pub fn reverse(self, name: impl Into<String>) -> Self

Selects a reverse ref for "ns/name" (:ns/_name).

pub fn nested(self, attr: impl Into<Attr>, sub: Pull) -> Self

Selects a ref attribute with a nested sub-pattern ({:ns/name sub}).

pub fn recurse(self, attr: impl Into<Attr>, depth: usize) -> Self

Recurses into a ref attribute to a bounded depth ({:ns/name n}).

pub fn recurse_unbounded(self, attr: impl Into<Attr>) -> Self

Recurses into a ref attribute without bound ({:ns/name ...}).

pub fn spec(self, attr: Attr) -> Self

Appends an explicit Attr selection carrying options.

pub fn to_edn(&self) -> Edn

Renders the pattern to its boundary Edn vector form.

Trait Implementations

impl Clone for Pull

fn clone(&self) -> Pull

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Pull

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

Formats the value using the given formatter.

impl Default for Pull

fn default() -> Pull

Returns the “default value” for a type.

impl Eq for Pull

impl PartialEq for Pull

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for Pull