Enum PatKind 

pub enum PatKind {
    Wild,
    Name(Ident),
    Int {
        negative: bool,
        value: u64,
    },
    Str(String),
    Bool(bool),
    Path(Path),
    Tuple {
        path: Path,
        items: Vec<Pat>,
    },
    Struct {
        path: Path,
        fields: Vec<FieldPat>,
        rest: bool,
    },
    Or(Vec<Pat>),
    Error,
}

The forms of patterns (spec chapter 3, section 7).

Variants

Wild

_

Name(Ident)

A lone name: a binding, or a payload-less variant or constant (decided later).

Int

An integer, possibly negative.

Fields

negative: bool

-

value: u64

The magnitude.

Str(String)

A string.

Bool(bool)

true or false.

Path(Path)

A dotted path without payload: StorageError.Full.

Tuple

Some(x), Shape.Circle(r).

Fields

path: Path

The variant.

items: Vec<Pat>

The payload patterns.

Struct

Point { x, y: 0, .. }.

Fields

path: Path

The struct or variant.

fields: Vec<FieldPat>

The field patterns.

rest: bool

.. at the end.

Or(Vec<Pat>)

A | B

Error

A pattern that could not be parsed.

Trait Implementations

impl Clone for PatKind

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for PatKind

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

Formats the value using the given formatter.

impl PartialEq for PatKind

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for PatKind