Trait ValueAnalysis

pub trait ValueAnalysis<'tcx> {
    type Value: Clone + JoinSemiLattice + HasBottom + HasTop + Debug;

    const NAME: &'static str;

    // Required method
    fn map(&self) -> &Map<'tcx>;

    // Provided methods
    fn handle_statement(
        &self,
        statement: &Statement<'tcx>,
        state: &mut State<Self::Value>,
    ) { ... }
    fn super_statement(
        &self,
        statement: &Statement<'tcx>,
        state: &mut State<Self::Value>,
    ) { ... }
    fn handle_set_discriminant(
        &self,
        place: Place<'tcx>,
        variant_index: VariantIdx,
        state: &mut State<Self::Value>,
    ) { ... }
    fn super_set_discriminant(
        &self,
        place: Place<'tcx>,
        _variant_index: VariantIdx,
        state: &mut State<Self::Value>,
    ) { ... }
    fn handle_intrinsic(
        &self,
        intrinsic: &NonDivergingIntrinsic<'tcx>,
        state: &mut State<Self::Value>,
    ) { ... }
    fn super_intrinsic(
        &self,
        intrinsic: &NonDivergingIntrinsic<'tcx>,
        _state: &mut State<Self::Value>,
    ) { ... }
    fn handle_assign(
        &self,
        target: Place<'tcx>,
        rvalue: &Rvalue<'tcx>,
        state: &mut State<Self::Value>,
    ) { ... }
    fn super_assign(
        &self,
        target: Place<'tcx>,
        rvalue: &Rvalue<'tcx>,
        state: &mut State<Self::Value>,
    ) { ... }
    fn handle_rvalue(
        &self,
        rvalue: &Rvalue<'tcx>,
        state: &mut State<Self::Value>,
    ) -> ValueOrPlace<Self::Value> { ... }
    fn super_rvalue(
        &self,
        rvalue: &Rvalue<'tcx>,
        state: &mut State<Self::Value>,
    ) -> ValueOrPlace<Self::Value> { ... }
    fn handle_operand(
        &self,
        operand: &Operand<'tcx>,
        state: &mut State<Self::Value>,
    ) -> ValueOrPlace<Self::Value> { ... }
    fn super_operand(
        &self,
        operand: &Operand<'tcx>,
        state: &mut State<Self::Value>,
    ) -> ValueOrPlace<Self::Value> { ... }
    fn handle_constant(
        &self,
        constant: &ConstOperand<'tcx>,
        state: &mut State<Self::Value>,
    ) -> Self::Value { ... }
    fn super_constant(
        &self,
        _constant: &ConstOperand<'tcx>,
        _state: &mut State<Self::Value>,
    ) -> Self::Value { ... }
    fn handle_terminator<'mir>(
        &self,
        terminator: &'mir Terminator<'tcx>,
        state: &mut State<Self::Value>,
    ) -> TerminatorEdges<'mir, 'tcx> { ... }
    fn super_terminator<'mir>(
        &self,
        terminator: &'mir Terminator<'tcx>,
        state: &mut State<Self::Value>,
    ) -> TerminatorEdges<'mir, 'tcx> { ... }
    fn handle_call_return(
        &self,
        return_places: CallReturnPlaces<'_, 'tcx>,
        state: &mut State<Self::Value>,
    ) { ... }
    fn super_call_return(
        &self,
        return_places: CallReturnPlaces<'_, 'tcx>,
        state: &mut State<Self::Value>,
    ) { ... }
    fn handle_switch_int<'mir>(
        &self,
        discr: &'mir Operand<'tcx>,
        targets: &'mir SwitchTargets,
        state: &mut State<Self::Value>,
    ) -> TerminatorEdges<'mir, 'tcx> { ... }
    fn super_switch_int<'mir>(
        &self,
        discr: &'mir Operand<'tcx>,
        targets: &'mir SwitchTargets,
        _state: &mut State<Self::Value>,
    ) -> TerminatorEdges<'mir, 'tcx> { ... }
    fn wrap(self) -> ValueAnalysisWrapper<Self>
       where Self: Sized { ... }
}

Required Associated Constants

const NAME: &'static str

Required Associated Types

type Value: Clone + JoinSemiLattice + HasBottom + HasTop + Debug

For each place of interest, the analysis tracks a value of the given type.

Required Methods

fn map(&self) -> &Map<'tcx>

Provided Methods

fn handle_statement( &self, statement: &Statement<'tcx>, state: &mut State<Self::Value>, )

fn super_statement( &self, statement: &Statement<'tcx>, state: &mut State<Self::Value>, )

fn handle_set_discriminant( &self, place: Place<'tcx>, variant_index: VariantIdx, state: &mut State<Self::Value>, )

fn super_set_discriminant( &self, place: Place<'tcx>, _variant_index: VariantIdx, state: &mut State<Self::Value>, )

fn handle_intrinsic( &self, intrinsic: &NonDivergingIntrinsic<'tcx>, state: &mut State<Self::Value>, )

fn super_intrinsic( &self, intrinsic: &NonDivergingIntrinsic<'tcx>, _state: &mut State<Self::Value>, )

fn handle_assign( &self, target: Place<'tcx>, rvalue: &Rvalue<'tcx>, state: &mut State<Self::Value>, )

fn super_assign( &self, target: Place<'tcx>, rvalue: &Rvalue<'tcx>, state: &mut State<Self::Value>, )

fn handle_rvalue( &self, rvalue: &Rvalue<'tcx>, state: &mut State<Self::Value>, ) -> ValueOrPlace<Self::Value>

fn super_rvalue( &self, rvalue: &Rvalue<'tcx>, state: &mut State<Self::Value>, ) -> ValueOrPlace<Self::Value>

fn handle_operand( &self, operand: &Operand<'tcx>, state: &mut State<Self::Value>, ) -> ValueOrPlace<Self::Value>

fn super_operand( &self, operand: &Operand<'tcx>, state: &mut State<Self::Value>, ) -> ValueOrPlace<Self::Value>

fn handle_constant( &self, constant: &ConstOperand<'tcx>, state: &mut State<Self::Value>, ) -> Self::Value

fn super_constant( &self, _constant: &ConstOperand<'tcx>, _state: &mut State<Self::Value>, ) -> Self::Value

fn handle_terminator<'mir>( &self, terminator: &'mir Terminator<'tcx>, state: &mut State<Self::Value>, ) -> TerminatorEdges<'mir, 'tcx>

The effect of a successful function call return should not be applied here, see Analysis::apply_terminator_effect.

fn super_terminator<'mir>( &self, terminator: &'mir Terminator<'tcx>, state: &mut State<Self::Value>, ) -> TerminatorEdges<'mir, 'tcx>

fn handle_call_return( &self, return_places: CallReturnPlaces<'_, 'tcx>, state: &mut State<Self::Value>, )

fn super_call_return( &self, return_places: CallReturnPlaces<'_, 'tcx>, state: &mut State<Self::Value>, )

fn handle_switch_int<'mir>( &self, discr: &'mir Operand<'tcx>, targets: &'mir SwitchTargets, state: &mut State<Self::Value>, ) -> TerminatorEdges<'mir, 'tcx>

fn super_switch_int<'mir>( &self, discr: &'mir Operand<'tcx>, targets: &'mir SwitchTargets, _state: &mut State<Self::Value>, ) -> TerminatorEdges<'mir, 'tcx>

fn wrap(self) -> ValueAnalysisWrapper<Self>

where Self: Sized,

Dyn Compatibility

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety", so this trait is not object safe.

Implementors