Enum Pattern 

pub enum Pattern {
    Wildcard(Span),
    Int(i64, Span),
    Str(String, Span),
    Bool(bool, Span),
    Variant {
        name: String,
        bindings: Vec<String>,
        span: Span,
    },
}

What a match arm tests for.

Variants

Wildcard(Span)

_ — matches anything, binds nothing.

Int(i64, Span)

A literal value: 0, "hi", true.

Str(String, Span)

Bool(bool, Span)

Variant

An enum case, optionally capturing its values: dot, circle(let r).

Fields

name: String

bindings: Vec<String>

span: Span

Implementations

impl Pattern

pub fn span(&self) -> Span

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.