Enum Pattern 

pub enum Pattern {
    Wildcard,
    Var(Arc<str>),
    Lit(Literal),
    Record(Vec<(Arc<str>, Self)>),
    List(Vec<Self>),
    Constructor(Arc<str>, Vec<Self>),
}

A destructuring pattern for match expressions.

Variants

Wildcard

Matches anything, binds nothing.

Var(Arc<str>)

Matches anything, binds the value to a name.

Lit(Literal)

Matches a specific literal value.

Record(Vec<(Arc<str>, Self)>)

Matches a record with specific field patterns.

List(Vec<Self>)

Matches a list with element patterns.

Constructor(Arc<str>, Vec<Self>)

Matches a tagged constructor with argument patterns.

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<'de> Deserialize<'de> for Pattern

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

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 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 Serialize for Pattern

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl Eq for Pattern

impl StructuralPartialEq for Pattern