Trait DemandReporter

pub trait DemandReporter<Var, Aux = ()> {
    type UsePosition: Copy;
    type IntroducePosition: Copy;

    // Provided methods
    fn drop_aux(
        &mut self,
        position: Self::IntroducePosition,
        var: Var,
        _aux: Aux,
    ) { ... }
    fn drop(&mut self, _position: Self::IntroducePosition, _var: Var) { ... }
    fn dup(
        &mut self,
        _position: Self::UsePosition,
        _var: Var,
        _next_usage_position: Self::UsePosition,
    ) { ... }
    fn last_use(&mut self, _position: Self::UsePosition, _var: Var) { ... }
    fn unused_mapped_var(&mut self, _var: Var) { ... }
}

A reporting trait that reports each variables dup, drop and last_use positions.

Required Associated Types

type UsePosition: Copy

type IntroducePosition: Copy

Provided Methods

fn drop_aux(&mut self, position: Self::IntroducePosition, var: Var, _aux: Aux)

fn drop(&mut self, _position: Self::IntroducePosition, _var: Var)

fn dup( &mut self, _position: Self::UsePosition, _var: Var, _next_usage_position: Self::UsePosition, )

fn last_use(&mut self, _position: Self::UsePosition, _var: Var)

fn unused_mapped_var(&mut self, _var: Var)

Implementors

impl DemandReporter<Id<Variable>> for MatchOptimizerContext

type IntroducePosition = ()

type UsePosition = ()

impl<'a> DemandReporter<Id<Variable>, PanicState> for DestructAdder<'a>

type IntroducePosition = (BlockId, usize)

type UsePosition = ()

impl<'a> DemandReporter<Id<Variable>, PanicState> for BorrowChecker<'a>

type IntroducePosition = (Option<DropPosition>, BlockId)

type UsePosition = LocationId