Struct rustc_mir_transform::promote_consts::Promoter

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struct Promoter<'a, 'tcx> {
    tcx: TyCtxt<'tcx>,
    source: &'a mut Body<'tcx>,
    promoted: Body<'tcx>,
    temps: &'a mut IndexVec<Local, TempState>,
    extra_statements: &'a mut Vec<(Location, Statement<'tcx>)>,
    required_consts: Vec<ConstOperand<'tcx>>,
    keep_original: bool,
    add_to_required: bool,
}

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§tcx: TyCtxt<'tcx>§source: &'a mut Body<'tcx>§promoted: Body<'tcx>§temps: &'a mut IndexVec<Local, TempState>§extra_statements: &'a mut Vec<(Location, Statement<'tcx>)>§required_consts: Vec<ConstOperand<'tcx>>

Used to assemble the required_consts list while building the promoted.

§keep_original: bool

If true, all nested temps are also kept in the source MIR, not moved to the promoted MIR.

§add_to_required: bool

If true, add the new const (the promoted) to the required_consts of the parent MIR. This is initially false and then set by the visitor when it encounters a Call terminator.

Implementations§

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impl<'a, 'tcx> Promoter<'a, 'tcx>

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fn new_block(&mut self) -> BasicBlock

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fn assign(&mut self, dest: Local, rvalue: Rvalue<'tcx>, span: Span)

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fn is_temp_kind(&self, local: Local) -> bool

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fn promote_temp(&mut self, temp: Local) -> Local

Copies the initialization of this temp to the promoted MIR, recursing through temps.

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fn promote_candidate( self, candidate: Candidate, next_promoted_id: usize, ) -> Body<'tcx>

Trait Implementations§

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impl<'a, 'tcx> MutVisitor<'tcx> for Promoter<'a, 'tcx>

Replaces all temporaries with their promoted counterparts.

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fn tcx(&self) -> TyCtxt<'tcx>

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fn visit_local(&mut self, local: &mut Local, _: PlaceContext, _: Location)

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fn visit_const_operand( &mut self, constant: &mut ConstOperand<'tcx>, _location: Location, )

This is called for every constant in the MIR body and every required_consts (i.e., including consts that have been dead-code-eliminated).
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fn visit_body(&mut self, body: &mut Body<'tcx>)

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

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

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

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

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

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

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

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

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

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

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

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fn visit_coverage(&mut self, kind: &mut CoverageKind, location: Location)

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

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

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

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fn process_projection<'a>( &mut self, projection: &'a [ProjectionElem<Local, Ty<'tcx>>], location: Location, ) -> Option<Vec<ProjectionElem<Local, Ty<'tcx>>>>

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fn process_projection_elem( &mut self, elem: ProjectionElem<Local, Ty<'tcx>>, location: Location, ) -> Option<ProjectionElem<Local, Ty<'tcx>>>

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fn visit_ty_const(&mut self, ct: &mut Const<'tcx>, location: Location)

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

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

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fn visit_ty(&mut self, ty: &mut Ty<'tcx>, _: TyContext)

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

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

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fn visit_region(&mut self, region: &mut Region<'tcx>, _: Location)

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fn visit_args( &mut self, args: &mut &'tcx RawList<(), GenericArg<'tcx>>, _: Location, )

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

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

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

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

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

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

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

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

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

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

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

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

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

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fn super_coverage(&mut self, _kind: &mut CoverageKind, _location: Location)

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

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

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

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

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fn super_const_operand( &mut self, constant: &mut ConstOperand<'tcx>, location: Location, )

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fn super_ty_const(&mut self, _ct: &mut Const<'tcx>, _location: Location)

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

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

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

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

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

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fn super_region(&mut self, _region: &mut Region<'tcx>)

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fn super_args(&mut self, _args: &mut &'tcx RawList<(), GenericArg<'tcx>>)

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

Auto Trait Implementations§

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impl<'a, 'tcx> !Freeze for Promoter<'a, 'tcx>

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impl<'a, 'tcx> !RefUnwindSafe for Promoter<'a, 'tcx>

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impl<'a, 'tcx> !Send for Promoter<'a, 'tcx>

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impl<'a, 'tcx> !Sync for Promoter<'a, 'tcx>

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impl<'a, 'tcx> Unpin for Promoter<'a, 'tcx>

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impl<'a, 'tcx> !UnwindSafe for Promoter<'a, 'tcx>

Blanket Implementations§

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impl<T> Aligned for T

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const ALIGN: Alignment = _

Alignment of Self.
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impl<T> Any for T
where T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for T
where T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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impl<T, R> CollectAndApply<T, R> for T

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fn collect_and_apply<I, F>(iter: I, f: F) -> R
where I: Iterator<Item = T>, F: FnOnce(&[T]) -> R,

Equivalent to f(&iter.collect::<Vec<_>>()).

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type Output = R

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impl<T> Filterable for T

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fn filterable( self, filter_name: &'static str, ) -> RequestFilterDataProvider<T, fn(_: DataRequest<'_>) -> bool>

Creates a filterable data provider with the given name for debugging. Read more
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T> Instrument for T

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fn instrument(self, span: Span) -> Instrumented<Self>

Instruments this type with the provided Span, returning an Instrumented wrapper. Read more
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fn in_current_span(self) -> Instrumented<Self>

Instruments this type with the current Span, returning an Instrumented wrapper. Read more
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impl<T, U> Into<U> for T
where U: From<T>,

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T> IntoEither for T

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fn into_either(self, into_left: bool) -> Either<Self, Self>

Converts self into a Left variant of Either<Self, Self> if into_left is true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more
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fn into_either_with<F>(self, into_left: F) -> Either<Self, Self>
where F: FnOnce(&Self) -> bool,

Converts self into a Left variant of Either<Self, Self> if into_left(&self) returns true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more
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impl<P> IntoQueryParam<P> for P

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impl<T> MaybeResult<T> for T

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type Error = !

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fn from(_: Result<T, <T as MaybeResult<T>>::Error>) -> T

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fn to_result(self) -> Result<T, <T as MaybeResult<T>>::Error>

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impl<T> Same for T

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type Output = T

Should always be Self
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type Error = Infallible

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Performs the conversion.
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type Error = <U as TryFrom<T>>::Error

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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.
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fn upcast(self, interner: I) -> U

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fn upcast_from(from: T, _tcx: I) -> T

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impl<V, T> VZip<V> for T
where V: MultiLane<T>,

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fn vzip(self) -> V

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impl<Tcx, T> Value<Tcx> for T
where Tcx: DepContext,

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default fn from_cycle_error( tcx: Tcx, cycle_error: &CycleError, _guar: ErrorGuaranteed, ) -> T

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impl<T> WithSubscriber for T

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fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self>
where S: Into<Dispatch>,

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impl<'a, T> Captures<'a> for T
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Layout§

Note: Most layout information is completely unstable and may even differ between compilations. The only exception is types with certain repr(...) attributes. Please see the Rust Reference's “Type Layout” chapter for details on type layout guarantees.

Size: 488 bytes