bjoernager/rust
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Retire to_ptr which should already have no users but still kept getting new ones

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This commit is contained in:
Oliver Scherer 2019-12-14 00:04:27 +01:00
parent 1e40681f50
commit b5b5258d74
5 changed files with 19 additions and 19 deletions
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9
src/librustc/mir/interpret/value.rs
View file

@ -367,8 +367,9 @@ impl<'tcx, Tag> Scalar<Tag> {
}
/// Do not call this method! Use either `assert_ptr` or `force_ptr`.
/// This method is intentionally private, do not make it public.
#[inline]
pub fn to_ptr(self) -> InterpResult<'tcx, Pointer<Tag>> {
fn to_ptr(self) -> InterpResult<'tcx, Pointer<Tag>> {
match self {
Scalar::Raw { data: 0, .. } => throw_unsup!(InvalidNullPointerUsage),
Scalar::Raw { .. } => throw_unsup!(ReadBytesAsPointer),
@ -544,12 +545,6 @@ impl<'tcx, Tag> ScalarMaybeUndef<Tag> {
}
}
/// Do not call this method! Use either `assert_ptr` or `force_ptr`.
#[inline(always)]
pub fn to_ptr(self) -> InterpResult<'tcx, Pointer<Tag>> {
self.not_undef()?.to_ptr()
}
/// Do not call this method! Use either `assert_bits` or `force_bits`.
#[inline(always)]
pub fn to_bits(self, target_size: Size) -> InterpResult<'tcx, u128> {

4
src/librustc/ty/relate.rs
View file

@ -537,8 +537,8 @@ pub fn super_relate_consts<R: TypeRelation<'tcx>>(
Ok(ConstValue::Scalar(a_val))
} else if let ty::FnPtr(_) = a.ty.kind {
let alloc_map = tcx.alloc_map.lock();
let a_instance = alloc_map.unwrap_fn(a_val.to_ptr().unwrap().alloc_id);
let b_instance = alloc_map.unwrap_fn(b_val.to_ptr().unwrap().alloc_id);
let a_instance = alloc_map.unwrap_fn(a_val.assert_ptr().alloc_id);
let b_instance = alloc_map.unwrap_fn(b_val.assert_ptr().alloc_id);
if a_instance == b_instance {
Ok(ConstValue::Scalar(a_val))
} else {

6
src/librustc_mir/const_eval/eval_queries.rs
View file

@ -119,7 +119,7 @@ pub(super) fn op_to_const<'tcx>(
};
let val = match immediate {
Ok(mplace) => {
let ptr = mplace.ptr.to_ptr().unwrap();
let ptr = mplace.ptr.assert_ptr();
let alloc = ecx.tcx.alloc_map.lock().unwrap_memory(ptr.alloc_id);
ConstValue::ByRef { alloc, offset: ptr.offset }
}
@ -133,7 +133,7 @@ pub(super) fn op_to_const<'tcx>(
// comes from a constant so it can happen have `Undef`, because the indirect
// memory that was read had undefined bytes.
let mplace = op.assert_mem_place();
let ptr = mplace.ptr.to_ptr().unwrap();
let ptr = mplace.ptr.assert_ptr();
let alloc = ecx.tcx.alloc_map.lock().unwrap_memory(ptr.alloc_id);
ConstValue::ByRef { alloc, offset: ptr.offset }
}
@ -176,7 +176,7 @@ fn validate_and_turn_into_const<'tcx>(
// Statics/promoteds are always `ByRef`, for the rest `op_to_const` decides
// whether they become immediates.
if is_static || cid.promoted.is_some() {
let ptr = mplace.ptr.to_ptr()?;
let ptr = mplace.ptr.assert_ptr();
Ok(tcx.mk_const(ty::Const {
val: ty::ConstKind::Value(ConstValue::ByRef {
alloc: ecx.tcx.alloc_map.lock().unwrap_memory(ptr.alloc_id),

4
src/librustc_mir/interpret/eval_context.rs
View file

@ -743,7 +743,9 @@ impl<'mir, 'tcx, M: Machine<'mir, 'tcx>> InterpCx<'mir, 'tcx, M> {
// FIXME: should we tell the user that there was a local which was never written to?
if let LocalValue::Live(Operand::Indirect(MemPlace { ptr, .. })) = local {
trace!("deallocating local");
let ptr = ptr.to_ptr()?;
// All locals have a backing allocation, even if the allocation is empty
// due to the local having ZST type.
let ptr = ptr.assert_ptr();
if log_enabled!(::log::Level::Trace) {
self.memory.dump_alloc(ptr.alloc_id);
}

15
src/librustc_mir/interpret/intern.rs
View file

@ -191,11 +191,12 @@ impl<'rt, 'mir, 'tcx, M: CompileTimeMachine<'mir, 'tcx>> ValueVisitor<'mir, 'tcx
if let ty::Dynamic(..) =
self.ecx.tcx.struct_tail_erasing_lifetimes(referenced_ty, self.ecx.param_env).kind
{
if let Ok(vtable) = mplace.meta.unwrap().to_ptr() {
// explitly choose `Immutable` here, since vtables are immutable, even
// if the reference of the fat pointer is mutable
self.intern_shallow(vtable.alloc_id, Mutability::Not, None)?;
}
// Validation has already errored on an invalid vtable pointer so this `assert_ptr`
// will never panic.
let vtable = mplace.meta.unwrap().assert_ptr();
// explitly choose `Immutable` here, since vtables are immutable, even
// if the reference of the fat pointer is mutable
self.intern_shallow(vtable.alloc_id, Mutability::Not, None)?;
}
// Check if we have encountered this pointer+layout combination before.
// Only recurse for allocation-backed pointers.
@ -280,7 +281,9 @@ pub fn intern_const_alloc_recursive<M: CompileTimeMachine<'mir, 'tcx>>(
ecx,
leftover_allocations,
base_intern_mode,
ret.ptr.to_ptr()?.alloc_id,
// The outermost allocation must exist, because we allocated it with
// `Memory::allocate`.
ret.ptr.assert_ptr().alloc_id,
base_mutability,
Some(ret.layout.ty),
)?;