Struct VariantDeclaration 

pub struct VariantDeclaration { /* private fields */ }

One named variant of an AlgebraicDataType, with its ordered fields.

Implementations

impl VariantDeclaration

pub fn new(symbol: Symbol, fields: Vec<PatternField>) -> Self

Builds a variant with the given tag symbol and ordered fields.

pub fn nullary(symbol: Symbol) -> Self

Builds a field-less (nullary) variant such as an enum tag.

pub fn symbol(&self) -> &Symbol

Returns the variant tag symbol.

pub fn fields(&self) -> &[PatternField]

Returns the variant fields in declaration order.

Trait Implementations

impl Clone for VariantDeclaration

fn clone(&self) -> VariantDeclaration

Returns a duplicate of the value.

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

Performs copy-assignment from source.