Struct Bubbler 

pub struct Bubbler(pub bool);

The Bubbler separates Patterns into their value and type-annotation components, “bubbling” PatOp::Typed annotations up to the top of all pattern-expressions.

Its bool argument tracks whether or not it’s inside of a BindOp::Enum expression, which gets different binding rules.

Tuple Fields

0: bool

Trait Implementations

impl Clone for Bubbler

fn clone(&self) -> Bubbler

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Bubbler

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

Formats the value using the given formatter.

impl Default for Bubbler

fn default() -> Bubbler

Returns the “default value” for a type.

impl Fold<DefaultTypes> for Bubbler

type Error = Infallible

fn fold_annotation( &mut self, anno: <DefaultTypes as AstTypes>::Annotation, ) -> Result<<DefaultTypes as AstTypes>::Annotation, Self::Error>

Consumes an Annotation in A, possibly transforms it, and produces a replacement Annotation in B

fn fold_macro_id( &mut self, name: <DefaultTypes as AstTypes>::MacroId, ) -> Result<<DefaultTypes as AstTypes>::MacroId, Self::Error>

Consumes a MacroId in A, possibly transforms it, and produces a replacement MacroId in B

fn fold_symbol( &mut self, name: <DefaultTypes as AstTypes>::Symbol, ) -> Result<<DefaultTypes as AstTypes>::Symbol, Self::Error>

Consumes a Symbol in A, possibly transforms it, and produces a replacement Symbol in B

fn fold_path( &mut self, path: <DefaultTypes as AstTypes>::Path, ) -> Result<<DefaultTypes as AstTypes>::Path, Self::Error>

Consumes a Path in A, possibly transforms it, and produces a replacement Path in B

fn fold_literal( &mut self, lit: <DefaultTypes as AstTypes>::Literal, ) -> Result<<DefaultTypes as AstTypes>::Literal, Self::Error>

Consumes a Literal in A, possibly transforms it, and produces a replacement Literal in B

fn fold_at_pat( &mut self, pat: At<Pat<DefaultTypes>, DefaultTypes>, ) -> Result<At<Pat<DefaultTypes>, DefaultTypes>, Self::Error>

Folds an annotated pattern, so the pattern and annotation can be seen at once.

fn fold_bind( &mut self, bind: Bind<DefaultTypes>, ) -> Result<Bind<DefaultTypes>, Self::Error>

Consumes a Bind, possibly transforms it, and produces a replacement Bind

fn fold_at_expr( &mut self, expr: At<Expr<From>, From>, ) -> Result<At<Expr<To>, To>, Self::Error>

Folds an annotated expression, so the expression and annotation can be seen at once.

fn fold_expr(&mut self, expr: Expr<From>) -> Result<Expr<To>, Self::Error>

Consumes an Expr, possibly transforms it, and produces a replacement Expr

fn fold_use(&mut self, item: Use<From>) -> Result<Use<To>, Self::Error>

Consumes a Use, possibly transforms it, and produces a replacement Use

fn fold_pat(&mut self, pat: Pat<From>) -> Result<Pat<To>, Self::Error>

Consumes a Pat, possibly transforms it, and produces a replacement Pat

fn fold_make(&mut self, make: Make<From>) -> Result<Make<To>, Self::Error>

Consumes a Make, possibly transforms it, and produces a replacement Make

fn fold_makearm( &mut self, arm: MakeArm<From>, ) -> Result<MakeArm<To>, Self::Error>

Consumes a MakeArm, possibly transforms it, and produces a replacement MakeArm

fn fold_match(&mut self, mtch: Match<From>) -> Result<Match<To>, Self::Error>

Consumes a Make, possibly transforms it, and produces a replacement Make

fn fold_matcharm( &mut self, arm: MatchArm<From>, ) -> Result<MatchArm<To>, Self::Error>

Consumes a MakeArm, possibly transforms it, and produces a replacement MakeArm

impl Ord for Bubbler

fn cmp(&self, other: &Bubbler) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

where Self: Sized,

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

where Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

where Self: Sized,

Restrict a value to a certain interval.

impl PartialEq for Bubbler

fn eq(&self, other: &Bubbler) -> 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 PartialOrd for Bubbler

fn partial_cmp(&self, other: &Bubbler) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

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

Tests less than (for self and other) and is used by the < operator.

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

Tests less than or equal to (for self and other) and is used by the <= operator.

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

Tests greater than (for self and other) and is used by the > operator.

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

Tests greater than or equal to (for self and other) and is used by the >= operator.

impl Copy for Bubbler

impl Eq for Bubbler

impl StructuralPartialEq for Bubbler