Enum clojure_reader::edn::Edn

#[non_exhaustive]
pub enum Edn<'e> {
    Vector(Vec<Edn<'e>>),
    Set(BTreeSet<Edn<'e>>),
    Map(BTreeMap<Edn<'e>, Edn<'e>>),
    List(Vec<Edn<'e>>),
    Key(&'e str),
    Symbol(&'e str),
    Str(&'e str),
    Int(i64),
    Double(OrderedFloat<f64>),
    Rational((i64, i64)),
    Char(char),
    Bool(bool),
    Nil,
}

Variants (Non-exhaustive)

Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.

Vector(Vec<Edn<'e>>)

Set(BTreeSet<Edn<'e>>)

Map(BTreeMap<Edn<'e>, Edn<'e>>)

List(Vec<Edn<'e>>)

Key(&'e str)

Symbol(&'e str)

Str(&'e str)

Int(i64)

Double(OrderedFloat<f64>)

Rational((i64, i64))

Char(char)

Bool(bool)

Nil

Implementations

impl<'e> Edn<'e>

pub fn get(&self, e: &Self) -> Option<&Self>

Examples found in repository

examples/get-nth.rs (line 13)

fn maybe_forty_two<'a>(edn: &'a Edn<'a>) -> Option<&Edn<'a>> {
  // This roughly tries to match clojure's get and nth
  // (-> (clojure.edn/read-string "{:foo {猫 {{:foo :bar} [1 2 42 3]}}}")
  //   (get :foo)
  //   (get (symbol "猫"))
  //   (get {:foo :bar})
  //   (nth 2))
  edn
    .get(&Edn::Key(":foo"))?
    .get(&Edn::Symbol("猫"))?
    .get(&Edn::Map(BTreeMap::from([(Edn::Key(":foo"), Edn::Key(":bar"))])))?
    .nth(2)
}

pub fn nth(&self, i: usize) -> Option<&Self>

Examples found in repository

examples/get-nth.rs (line 16)

fn maybe_forty_two<'a>(edn: &'a Edn<'a>) -> Option<&Edn<'a>> {
  // This roughly tries to match clojure's get and nth
  // (-> (clojure.edn/read-string "{:foo {猫 {{:foo :bar} [1 2 42 3]}}}")
  //   (get :foo)
  //   (get (symbol "猫"))
  //   (get {:foo :bar})
  //   (nth 2))
  edn
    .get(&Edn::Key(":foo"))?
    .get(&Edn::Symbol("猫"))?
    .get(&Edn::Map(BTreeMap::from([(Edn::Key(":foo"), Edn::Key(":bar"))])))?
    .nth(2)
}

Trait Implementations

impl<'e> Clone for Edn<'e>

fn clone(&self) -> Edn<'e>

Returns a copy of the value.

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

Performs copy-assignment from source.

impl<'e> Debug for Edn<'e>

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

Formats the value using the given formatter.

impl<'e> Display for Edn<'e>

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

Formats the value using the given formatter.

impl<'e> Ord for Edn<'e>

fn cmp(&self, other: &Edn<'e>) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

where Self: Sized,

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

where Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

where Self: Sized + PartialOrd,

Restrict a value to a certain interval.

impl<'e> PartialEq for Edn<'e>

fn eq(&self, other: &Edn<'e>) -> 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 !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl<'e> PartialOrd for Edn<'e>

fn partial_cmp(&self, other: &Edn<'e>) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

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

This method tests less than (for self and other) and is used by the < operator.

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

This method tests less than or equal to (for self and other) and is used by the <= operator.

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

This method tests greater than (for self and other) and is used by the > operator.

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

This method tests greater than or equal to (for self and other) and is used by the >= operator.

impl<'e> Eq for Edn<'e>

impl<'e> StructuralPartialEq for Edn<'e>