Struct Pattern 

pub struct Pattern(/* private fields */);

A sequence of operations defining a pattern.

Implementations

impl Pattern

pub fn new(elems: Vec<PatternElem>) -> Self

Constructs a new pattern given a vector of operations.

pub fn empty() -> Self

Constructs a new empty pattern.

pub fn len(&self) -> usize

pub fn is_empty(&self) -> bool

pub fn extend_each<T>(&self, iter: T) -> Vec<Self>

where T: Iterator<Item = PatternElem>,

Appends each of the items in iter to the pattern separately, returning a vector of patterns.

let pat = pat![Plus(3), Mult(2)];
let pats = pat.extend_each(vec![Div(2), Div(3)].into_iter());
assert_eq!(pats, vec![pat![Plus(3), Mult(2), Div(2)], pat![Plus(3), Mult(2), Div(3)]]);

pub fn iter(&self) -> Iter<'_, PatternElem>

pub fn has_repeating_types(&self) -> bool

Trait Implementations

impl Clone for Pattern

fn clone(&self) -> Pattern

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Pattern

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

Formats the value using the given formatter.

impl Display for Pattern

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

Formats the value using the given formatter.

impl FromIterator<PatternElem> for Pattern

fn from_iter<I: IntoIterator<Item = PatternElem>>(iterator: I) -> Self

Creates a value from an iterator.

impl Hash for Pattern

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl IntoIterator for Pattern

type Item = PatternElem

The type of the elements being iterated over.

type IntoIter = IntoIter<PatternElem>

Which kind of iterator are we turning this into?

fn into_iter(self) -> Self::IntoIter

Creates an iterator from a value.

impl Ord for Pattern

fn cmp(&self, other: &Pattern) -> 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,

Restrict a value to a certain interval.

impl PartialEq for Pattern

fn eq(&self, other: &Pattern) -> 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 PartialOrd for Pattern

fn partial_cmp(&self, other: &Pattern) -> Option<Ordering>

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

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

Tests less than (for self and other) and is used by the < operator.

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

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

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

Tests greater than (for self and other) and is used by the > operator.

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

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

impl Eq for Pattern

impl StructuralPartialEq for Pattern