Enum Pattern 

pub enum Pattern {
    Identifier(String),
    Typed {
        name: String,
        type_annotation: TypeAnnotation,
    },
    Literal(Literal),
    Array(Vec<Pattern>),
    Object(Vec<(String, Pattern)>),
    Wildcard,
    Constructor {
        enum_name: Option<TypePath>,
        variant: String,
        fields: PatternConstructorFields,
    },
}

Pattern for pattern matching

Variants

Identifier(String)

Match a specific identifier and bind it

Typed

Match by type and bind identifier when the runtime value conforms

Fields

name: String

type_annotation: TypeAnnotation

Literal(Literal)

Match a literal value

Array(Vec<Pattern>)

Match an array pattern

Object(Vec<(String, Pattern)>)

Match an object pattern

Wildcard

Match anything (underscore)

Constructor

Match a constructor pattern

Fields

enum_name: Option<TypePath>

variant: String

fields: PatternConstructorFields

Implementations

impl Pattern

pub fn as_simple_name(&self) -> Option<&str>

Get the simple identifier name if this is a simple pattern

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 Display for Pattern

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

Formats the value using the given formatter.

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 StructuralPartialEq for Pattern