Struct Choice 

pub struct Choice { /* private fields */ }

Implementations

impl Choice

pub fn is_sticky(&self) -> bool

true for a sticky (+) choice, false for a once-only (*) one.

B0.7 fix (docs/b0-sequencing.md §B0.7, issue #1176): the bullet token is wrapped in a nested CHOICE_BULLET node (choice.rs::choice: p.start_node(CHOICE_BULLET); p.bump(); …), never a direct token of CHOICE itself — support::token only looks at direct children, so the original B0.5/B0.6 implementation (support::token(&self.syntax, PLUS)) always returned false. Every choice line in the corpus was silently lowering as once-only; caught by B0.7’s choice_point_lowers_to_choice_set_with_sticky_and_once test, the first real exercise of a sticky (+) choice line.

pub fn label(&self) -> Option<Label>

pub fn guard(&self) -> Option<ChoiceGuard>

pub fn body(&self) -> Option<ChoiceBody>

impl Choice

pub fn start_content(&self) -> Option<ChoiceStartContent>

pub fn bracket_content(&self) -> Option<ChoiceBracketContent>

pub fn inner_content(&self) -> Option<ChoiceInnerContent>

Trait Implementations

impl AstNode for Choice

fn can_cast(kind: SyntaxKind) -> bool

Returns true for a node with a SyntaxKind this type can wrap.

fn cast(node: SyntaxNode) -> Option<Self>

Try to cast a generic SyntaxNode into this typed wrapper.

fn syntax(&self) -> &SyntaxNode

Access the underlying SyntaxNode.

impl Clone for Choice

fn clone(&self) -> Choice

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Choice

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

Formats the value using the given formatter.

impl Display for Choice

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

Formats the value using the given formatter.

impl Eq for Choice

impl Hash for Choice

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 Choice

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for Choice