Struct LocalsUsageVisitor

struct LocalsUsageVisitor {
    used_locals: Vector<LocalId, bool>,
}

Fields

used_locals: Vector<LocalId, bool>

Trait Implementations

impl VisitBody for LocalsUsageVisitor

fn enter_local_id(&mut self, lid: &LocalId)

Called when starting to visit a $ty (unless visit_$ty is overriden).

fn visit_llbc_statement(&mut self, st: &Statement) -> ControlFlow<Self::Break>

Overrideable method called when visiting a $ty. When overriding this method, call self.visit_inner(x) to keep recursively visiting the type, or don’t call it if the contents of x should not be visited.

fn visit_ullbc_statement(&mut self, st: &Statement) -> ControlFlow<Self::Break>

Overrideable method called when visiting a $ty. When overriding this method, call self.visit_inner(x) to keep recursively visiting the type, or don’t call it if the contents of x should not be visited.

fn visit<'a, T: BodyVisitable>(&'a mut self, x: &T) -> ControlFlow<Self::Break>

Visit a visitable type. This calls the appropriate method of this trait on x (visit_$ty if it exists, visit_inner if not).

fn visit_by_val<T: BodyVisitable>(self, x: &T) -> ControlFlow<Self::Break, Self>

Convenience alias for method chaining.

fn visit_by_val_infallible<T: BodyVisitable>(self, x: &T) -> Self

where Self: Visitor<Break = Infallible> + Sized,

Convenience when the visitor does not return early.

fn visit_inner<T>(&mut self, x: &T) -> ControlFlow<Self::Break>

where T: BodyVisitable + for<'s> Drive<'s, BodyVisitableWrapper<Self>>,

Visit the contents of x. This calls self.visit() on each field of T. This is available for any type whose contents are all #trait_name.

fn visit_aggregate_kind( &mut self, x: &AggregateKind, ) -> ControlFlow<Self::Break>

Overrideable method called when visiting a $ty. When overriding this method, call self.visit_inner(x) to keep recursively visiting the type, or don’t call it if the contents of x should not be visited.

fn enter_aggregate_kind(&mut self, x: &AggregateKind)

Called when starting to visit a $ty (unless visit_$ty is overriden).

fn exit_aggregate_kind(&mut self, x: &AggregateKind)

Called when finished visiting a $ty (unless visit_$ty is overriden).

fn visit_call(&mut self, x: &Call) -> ControlFlow<Self::Break>

Overrideable method called when visiting a $ty. When overriding this method, call self.visit_inner(x) to keep recursively visiting the type, or don’t call it if the contents of x should not be visited.

fn enter_call(&mut self, x: &Call)

Called when starting to visit a $ty (unless visit_$ty is overriden).

fn exit_call(&mut self, x: &Call)

Called when finished visiting a $ty (unless visit_$ty is overriden).

fn visit_fn_operand(&mut self, x: &FnOperand) -> ControlFlow<Self::Break>

Overrideable method called when visiting a $ty. When overriding this method, call self.visit_inner(x) to keep recursively visiting the type, or don’t call it if the contents of x should not be visited.

fn enter_fn_operand(&mut self, x: &FnOperand)

Called when starting to visit a $ty (unless visit_$ty is overriden).

fn exit_fn_operand(&mut self, x: &FnOperand)

Called when finished visiting a $ty (unless visit_$ty is overriden).

fn visit_fn_ptr(&mut self, x: &FnPtr) -> ControlFlow<Self::Break>

Overrideable method called when visiting a $ty. When overriding this method, call self.visit_inner(x) to keep recursively visiting the type, or don’t call it if the contents of x should not be visited.

fn enter_fn_ptr(&mut self, x: &FnPtr)

Called when starting to visit a $ty (unless visit_$ty is overriden).

fn exit_fn_ptr(&mut self, x: &FnPtr)

Called when finished visiting a $ty (unless visit_$ty is overriden).

fn visit_operand(&mut self, x: &Operand) -> ControlFlow<Self::Break>

Overrideable method called when visiting a $ty. When overriding this method, call self.visit_inner(x) to keep recursively visiting the type, or don’t call it if the contents of x should not be visited.

fn enter_operand(&mut self, x: &Operand)

Called when starting to visit a $ty (unless visit_$ty is overriden).

fn exit_operand(&mut self, x: &Operand)

Called when finished visiting a $ty (unless visit_$ty is overriden).

fn visit_place(&mut self, x: &Place) -> ControlFlow<Self::Break>

Overrideable method called when visiting a $ty. When overriding this method, call self.visit_inner(x) to keep recursively visiting the type, or don’t call it if the contents of x should not be visited.

fn enter_place(&mut self, x: &Place)

Called when starting to visit a $ty (unless visit_$ty is overriden).

fn exit_place(&mut self, x: &Place)

Called when finished visiting a $ty (unless visit_$ty is overriden).

fn visit_projection_elem( &mut self, x: &ProjectionElem, ) -> ControlFlow<Self::Break>

Overrideable method called when visiting a $ty. When overriding this method, call self.visit_inner(x) to keep recursively visiting the type, or don’t call it if the contents of x should not be visited.

fn enter_projection_elem(&mut self, x: &ProjectionElem)

Called when starting to visit a $ty (unless visit_$ty is overriden).

fn exit_projection_elem(&mut self, x: &ProjectionElem)

Called when finished visiting a $ty (unless visit_$ty is overriden).

fn visit_rvalue(&mut self, x: &Rvalue) -> ControlFlow<Self::Break>

Overrideable method called when visiting a $ty. When overriding this method, call self.visit_inner(x) to keep recursively visiting the type, or don’t call it if the contents of x should not be visited.

fn enter_rvalue(&mut self, x: &Rvalue)

Called when starting to visit a $ty (unless visit_$ty is overriden).

fn exit_rvalue(&mut self, x: &Rvalue)

Called when finished visiting a $ty (unless visit_$ty is overriden).

fn visit_locals(&mut self, x: &Locals) -> ControlFlow<Self::Break>

Overrideable method called when visiting a $ty. When overriding this method, call self.visit_inner(x) to keep recursively visiting the type, or don’t call it if the contents of x should not be visited.

fn enter_locals(&mut self, x: &Locals)

Called when starting to visit a $ty (unless visit_$ty is overriden).

fn exit_locals(&mut self, x: &Locals)

Called when finished visiting a $ty (unless visit_$ty is overriden).

fn visit_local_id(&mut self, x: &LocalId) -> ControlFlow<Self::Break>

Overrideable method called when visiting a $ty. When overriding this method, call self.visit_inner(x) to keep recursively visiting the type, or don’t call it if the contents of x should not be visited.

fn exit_local_id(&mut self, x: &LocalId)

Called when finished visiting a $ty (unless visit_$ty is overriden).

fn visit_llbc_block(&mut self, x: &Block) -> ControlFlow<Self::Break>

Overrideable method called when visiting a $ty. When overriding this method, call self.visit_inner(x) to keep recursively visiting the type, or don’t call it if the contents of x should not be visited.

fn enter_llbc_block(&mut self, x: &Block)

Called when starting to visit a $ty (unless visit_$ty is overriden).

fn exit_llbc_block(&mut self, x: &Block)

Called when finished visiting a $ty (unless visit_$ty is overriden).

fn enter_llbc_statement(&mut self, x: &Statement)

Called when starting to visit a $ty (unless visit_$ty is overriden).

fn exit_llbc_statement(&mut self, x: &Statement)

Called when finished visiting a $ty (unless visit_$ty is overriden).

fn enter_ullbc_statement(&mut self, x: &Statement)

Called when starting to visit a $ty (unless visit_$ty is overriden).

fn exit_ullbc_statement(&mut self, x: &Statement)

Called when finished visiting a $ty (unless visit_$ty is overriden).

fn visit_ullbc_terminator(&mut self, x: &Terminator) -> ControlFlow<Self::Break>

Overrideable method called when visiting a $ty. When overriding this method, call self.visit_inner(x) to keep recursively visiting the type, or don’t call it if the contents of x should not be visited.

fn enter_ullbc_terminator(&mut self, x: &Terminator)

Called when starting to visit a $ty (unless visit_$ty is overriden).

fn exit_ullbc_terminator(&mut self, x: &Terminator)

Called when finished visiting a $ty (unless visit_$ty is overriden).

fn visit_ullbc_block_id(&mut self, x: &BlockId) -> ControlFlow<Self::Break>

Overrideable method called when visiting a $ty. When overriding this method, call self.visit_inner(x) to keep recursively visiting the type, or don’t call it if the contents of x should not be visited.

fn enter_ullbc_block_id(&mut self, x: &BlockId)

Called when starting to visit a $ty (unless visit_$ty is overriden).

fn exit_ullbc_block_id(&mut self, x: &BlockId)

Called when finished visiting a $ty (unless visit_$ty is overriden).

impl Visitor for LocalsUsageVisitor

type Break = Infallible

The type used for early-return, if the visitor supports it. Use an empty type like std::convert::Infallible if the visitor does not short-circuit.