Struct rustc_mir::transform::check_unsafety::UnsafetyChecker

pub struct UnsafetyChecker<'a, 'tcx> {
    body: &'a Body<'tcx>,
    body_did: LocalDefId,
    const_context: bool,
    min_const_fn: bool,
    violations: Vec<UnsafetyViolation>,
    source_info: SourceInfo,
    tcx: TyCtxt<'tcx>,
    param_env: ParamEnv<'tcx>,
    used_unsafe: FxHashSet<HirId>,
    inherited_blocks: Vec<(HirId, bool)>,
}

Fields

body: &'a Body<'tcx>

body_did: LocalDefId

const_context: bool

min_const_fn: bool

violations: Vec<UnsafetyViolation>

source_info: SourceInfo

tcx: TyCtxt<'tcx>

param_env: ParamEnv<'tcx>

used_unsafe: FxHashSet<HirId>

Mark an unsafe block as used, so we don't lint it.

inherited_blocks: Vec<(HirId, bool)>

Implementations

impl<'a, 'tcx> UnsafetyChecker<'a, 'tcx>

pub(in transform::check_unsafety) fn new(
    const_context: bool,
    min_const_fn: bool,
    body: &'a Body<'tcx>,
    body_did: LocalDefId,
    tcx: TyCtxt<'tcx>,
    param_env: ParamEnv<'tcx>
) -> Self

impl<'a, 'tcx> UnsafetyChecker<'a, 'tcx>

pub(in transform::check_unsafety) fn require_unsafe(
    &mut self,
    kind: UnsafetyViolationKind,
    details: UnsafetyViolationDetails
)

pub(in transform::check_unsafety) fn register_violations(
    &mut self,
    violations: &[UnsafetyViolation],
    unsafe_blocks: &[(HirId, bool)]
)

pub(in transform::check_unsafety) fn check_mut_borrowing_layout_constrained_field(
    &mut self,
    place: Place<'tcx>,
    is_mut_use: bool
)

pub(in transform::check_unsafety) fn check_target_features(
    &mut self,
    func_did: DefId
)

Checks whether calling func_did needs an unsafe context or not, i.e. whether the called function has target features the calling function hasn't.

Trait Implementations

impl<'a, 'tcx> Visitor<'tcx> for UnsafetyChecker<'a, 'tcx>

pub fn visit_terminator(
    &mut self,
    terminator: &Terminator<'tcx>,
    location: Location
)

pub fn visit_statement(
    &mut self,
    statement: &Statement<'tcx>,
    location: Location
)

pub fn visit_rvalue(&mut self, rvalue: &Rvalue<'tcx>, location: Location)

pub fn visit_place(
    &mut self,
    place: &Place<'tcx>,
    context: PlaceContext,
    _location: Location
)

pub fn visit_body(&mut self, body: &Body<'tcx>)

pub fn visit_basic_block_data(
    &mut self,
    block: BasicBlock,
    data: &BasicBlockData<'tcx>
)

pub fn visit_source_scope_data(&mut self, scope_data: &SourceScopeData<'tcx>)

pub fn visit_assign(
    &mut self,
    place: &Place<'tcx>,
    rvalue: &Rvalue<'tcx>,
    location: Location
)

pub fn visit_assert_message(
    &mut self,
    msg: &AssertKind<Operand<'tcx>>,
    location: Location
)

pub fn visit_operand(&mut self, operand: &Operand<'tcx>, location: Location)

pub fn visit_ascribe_user_ty(
    &mut self,
    place: &Place<'tcx>,
    variance: &Variance,
    user_ty: &UserTypeProjection,
    location: Location
)

pub fn visit_coverage(&mut self, coverage: &Coverage, location: Location)

pub fn visit_retag(
    &mut self,
    kind: &RetagKind,
    place: &Place<'tcx>,
    location: Location
)

pub fn visit_projection(
    &mut self,
    local: Local,
    projection: &[ProjectionElem<Local, &'tcx TyS<'tcx>>],
    context: PlaceContext,
    location: Location
)

pub fn visit_projection_elem(
    &mut self,
    local: Local,
    proj_base: &[ProjectionElem<Local, &'tcx TyS<'tcx>>],
    elem: ProjectionElem<Local, &'tcx TyS<'tcx>>,
    context: PlaceContext,
    location: Location
)

pub fn super_place(
    &mut self,
    place: &Place<'tcx>,
    context: PlaceContext,
    location: Location
)

pub fn super_projection(
    &mut self,
    local: Local,
    projection: &[ProjectionElem<Local, &'tcx TyS<'tcx>>],
    context: PlaceContext,
    location: Location
)

pub fn super_projection_elem(
    &mut self,
    _local: Local,
    _proj_base: &[ProjectionElem<Local, &'tcx TyS<'tcx>>],
    elem: ProjectionElem<Local, &'tcx TyS<'tcx>>,
    _context: PlaceContext,
    location: Location
)

pub fn visit_constant(&mut self, constant: &Constant<'tcx>, location: Location)

pub fn visit_span(&mut self, span: &Span)

pub fn visit_source_info(&mut self, source_info: &SourceInfo)

pub fn visit_ty(&mut self, ty: &'tcx TyS<'tcx>, TyContext)

pub fn visit_user_type_projection(&mut self, ty: &UserTypeProjection)

pub fn visit_user_type_annotation(
    &mut self,
    index: UserTypeAnnotationIndex,
    ty: &CanonicalUserTypeAnnotation<'tcx>
)

pub fn visit_region(&mut self, region: &&'tcx RegionKind, Location)

pub fn visit_const(&mut self, constant: &&'tcx Const<'tcx>, Location)

pub fn visit_substs(&mut self, substs: &&'tcx List<GenericArg<'tcx>>, Location)

pub fn visit_local_decl(&mut self, local: Local, local_decl: &LocalDecl<'tcx>)

pub fn visit_var_debug_info(&mut self, var_debug_info: &VarDebugInfo<'tcx>)

pub fn visit_local(
    &mut self,
    _local: &Local,
    _context: PlaceContext,
    _location: Location
)

pub fn visit_source_scope(&mut self, scope: &SourceScope)

pub fn super_body(&mut self, body: &Body<'tcx>)

pub fn super_basic_block_data(
    &mut self,
    block: BasicBlock,
    data: &BasicBlockData<'tcx>
)

pub fn super_source_scope_data(&mut self, scope_data: &SourceScopeData<'tcx>)

pub fn super_statement(
    &mut self,
    statement: &Statement<'tcx>,
    location: Location
)

pub fn super_assign(
    &mut self,
    place: &Place<'tcx>,
    rvalue: &Rvalue<'tcx>,
    location: Location
)

pub fn super_terminator(
    &mut self,
    terminator: &Terminator<'tcx>,
    location: Location
)

pub fn super_assert_message(
    &mut self,
    msg: &AssertKind<Operand<'tcx>>,
    location: Location
)

pub fn super_rvalue(&mut self, rvalue: &Rvalue<'tcx>, location: Location)

pub fn super_operand(&mut self, operand: &Operand<'tcx>, location: Location)

pub fn super_ascribe_user_ty(
    &mut self,
    place: &Place<'tcx>,
    _variance: &Variance,
    user_ty: &UserTypeProjection,
    location: Location
)

pub fn super_coverage(&mut self, _coverage: &Coverage, _location: Location)

pub fn super_retag(
    &mut self,
    _kind: &RetagKind,
    place: &Place<'tcx>,
    location: Location
)

pub fn super_local_decl(&mut self, local: Local, local_decl: &LocalDecl<'tcx>)

pub fn super_var_debug_info(&mut self, var_debug_info: &VarDebugInfo<'tcx>)

pub fn super_source_scope(&mut self, _scope: &SourceScope)

pub fn super_constant(&mut self, constant: &Constant<'tcx>, location: Location)

pub fn super_span(&mut self, _span: &Span)

pub fn super_source_info(&mut self, source_info: &SourceInfo)

pub fn super_user_type_projection(&mut self, _ty: &UserTypeProjection)

pub fn super_user_type_annotation(
    &mut self,
    _index: UserTypeAnnotationIndex,
    ty: &CanonicalUserTypeAnnotation<'tcx>
)

pub fn super_ty(&mut self, _ty: &'tcx TyS<'tcx>)

pub fn super_region(&mut self, _region: &&'tcx RegionKind)

pub fn super_const(&mut self, _const: &&'tcx Const<'tcx>)

pub fn super_substs(&mut self, _substs: &&'tcx List<GenericArg<'tcx>>)

pub fn visit_location(&mut self, body: &Body<'tcx>, location: Location)