Auto merge of #135473 - matthiaskrgr:rollup-ksnst4l, r=matthiaskrgr
Rollup of 3 pull requests Successful merges: - #135381 (Add an example for `Vec::splice` inserting elements without removing) - #135451 (Remove code duplication when hashing query result and interning node) - #135464 (fix ICE with references to infinite structs in consts) r? `@ghost` `@rustbot` modify labels: rollup
This commit is contained in:
bors
commit
a48e7b0057
8 changed files with 160 additions and 52 deletions
|
|
@ -548,7 +548,6 @@ macro_rules! define_feedable {
|
|||
let dep_node_index = tcx.dep_graph.with_feed_task(
|
||||
dep_node,
|
||||
tcx,
|
||||
key,
|
||||
&value,
|
||||
hash_result!([$($modifiers)*]),
|
||||
);
|
||||
|
|
|
|||
|
|
@ -376,25 +376,8 @@ impl<D: Deps> DepGraphData<D> {
|
|||
};
|
||||
|
||||
let dcx = cx.dep_context();
|
||||
let hashing_timer = dcx.profiler().incr_result_hashing();
|
||||
let current_fingerprint =
|
||||
hash_result.map(|f| dcx.with_stable_hashing_context(|mut hcx| f(&mut hcx, &result)));
|
||||
|
||||
// Intern the new `DepNode`.
|
||||
let (dep_node_index, prev_and_color) =
|
||||
self.current.intern_node(&self.previous, key, edges, current_fingerprint);
|
||||
|
||||
hashing_timer.finish_with_query_invocation_id(dep_node_index.into());
|
||||
|
||||
if let Some((prev_index, color)) = prev_and_color {
|
||||
debug_assert!(
|
||||
self.colors.get(prev_index).is_none(),
|
||||
"DepGraph::with_task() - Duplicate DepNodeColor \
|
||||
insertion for {key:?}"
|
||||
);
|
||||
|
||||
self.colors.insert(prev_index, color);
|
||||
}
|
||||
let dep_node_index =
|
||||
self.hash_result_and_intern_node(dcx, key, edges, &result, hash_result);
|
||||
|
||||
(result, dep_node_index)
|
||||
}
|
||||
|
|
@ -462,6 +445,38 @@ impl<D: Deps> DepGraphData<D> {
|
|||
|
||||
(result, dep_node_index)
|
||||
}
|
||||
|
||||
/// Intern the new `DepNode` with the dependencies up-to-now.
|
||||
fn hash_result_and_intern_node<Ctxt: DepContext<Deps = D>, R>(
|
||||
&self,
|
||||
cx: &Ctxt,
|
||||
node: DepNode,
|
||||
edges: EdgesVec,
|
||||
result: &R,
|
||||
hash_result: Option<fn(&mut StableHashingContext<'_>, &R) -> Fingerprint>,
|
||||
) -> DepNodeIndex {
|
||||
let hashing_timer = cx.profiler().incr_result_hashing();
|
||||
let current_fingerprint = hash_result.map(|hash_result| {
|
||||
cx.with_stable_hashing_context(|mut hcx| hash_result(&mut hcx, result))
|
||||
});
|
||||
|
||||
// Intern the new `DepNode` with the dependencies up-to-now.
|
||||
let (dep_node_index, prev_and_color) =
|
||||
self.current.intern_node(&self.previous, node, edges, current_fingerprint);
|
||||
|
||||
hashing_timer.finish_with_query_invocation_id(dep_node_index.into());
|
||||
|
||||
if let Some((prev_index, color)) = prev_and_color {
|
||||
debug_assert!(
|
||||
self.colors.get(prev_index).is_none(),
|
||||
"DepGraph::with_task() - Duplicate DepNodeColor insertion for {node:?}",
|
||||
);
|
||||
|
||||
self.colors.insert(prev_index, color);
|
||||
}
|
||||
|
||||
dep_node_index
|
||||
}
|
||||
}
|
||||
|
||||
impl<D: Deps> DepGraph<D> {
|
||||
|
|
@ -536,11 +551,10 @@ impl<D: Deps> DepGraph<D> {
|
|||
/// FIXME: If the code is changed enough for this node to be marked before requiring the
|
||||
/// caller's node, we suppose that those changes will be enough to mark this node red and
|
||||
/// force a recomputation using the "normal" way.
|
||||
pub fn with_feed_task<Ctxt: DepContext<Deps = D>, A: Debug, R: Debug>(
|
||||
pub fn with_feed_task<Ctxt: DepContext<Deps = D>, R: Debug>(
|
||||
&self,
|
||||
node: DepNode,
|
||||
cx: Ctxt,
|
||||
key: A,
|
||||
result: &R,
|
||||
hash_result: Option<fn(&mut StableHashingContext<'_>, &R) -> Fingerprint>,
|
||||
) -> DepNodeIndex {
|
||||
|
|
@ -588,27 +602,7 @@ impl<D: Deps> DepGraph<D> {
|
|||
}
|
||||
});
|
||||
|
||||
let hashing_timer = cx.profiler().incr_result_hashing();
|
||||
let current_fingerprint = hash_result.map(|hash_result| {
|
||||
cx.with_stable_hashing_context(|mut hcx| hash_result(&mut hcx, result))
|
||||
});
|
||||
|
||||
// Intern the new `DepNode` with the dependencies up-to-now.
|
||||
let (dep_node_index, prev_and_color) =
|
||||
data.current.intern_node(&data.previous, node, edges, current_fingerprint);
|
||||
|
||||
hashing_timer.finish_with_query_invocation_id(dep_node_index.into());
|
||||
|
||||
if let Some((prev_index, color)) = prev_and_color {
|
||||
debug_assert!(
|
||||
data.colors.get(prev_index).is_none(),
|
||||
"DepGraph::with_task() - Duplicate DepNodeColor insertion for {key:?}",
|
||||
);
|
||||
|
||||
data.colors.insert(prev_index, color);
|
||||
}
|
||||
|
||||
dep_node_index
|
||||
data.hash_result_and_intern_node(&cx, node, edges, result, hash_result)
|
||||
} else {
|
||||
// Incremental compilation is turned off. We just execute the task
|
||||
// without tracking. We still provide a dep-node index that uniquely
|
||||
|
|
|
|||
|
|
@ -1148,7 +1148,9 @@ fn assemble_candidates_from_impls<'cx, 'tcx>(
|
|||
// If returned by `struct_tail` this is the empty tuple.
|
||||
| ty::Tuple(..)
|
||||
// Integers and floats are always Sized, and so have unit type metadata.
|
||||
| ty::Infer(ty::InferTy::IntVar(_) | ty::InferTy::FloatVar(..)) => true,
|
||||
| ty::Infer(ty::InferTy::IntVar(_) | ty::InferTy::FloatVar(..))
|
||||
// This happens if we reach the recursion limit when finding the struct tail.
|
||||
| ty::Error(..) => true,
|
||||
|
||||
// We normalize from `Wrapper<Tail>::Metadata` to `Tail::Metadata` if able.
|
||||
// Otherwise, type parameters, opaques, and unnormalized projections have
|
||||
|
|
@ -1179,8 +1181,7 @@ fn assemble_candidates_from_impls<'cx, 'tcx>(
|
|||
| ty::Alias(..)
|
||||
| ty::Bound(..)
|
||||
| ty::Placeholder(..)
|
||||
| ty::Infer(..)
|
||||
| ty::Error(_) => {
|
||||
| ty::Infer(..) => {
|
||||
if tail.has_infer_types() {
|
||||
candidate_set.mark_ambiguous();
|
||||
}
|
||||
|
|
|
|||
|
|
@ -3587,7 +3587,7 @@ impl<T, A: Allocator> Vec<T, A> {
|
|||
/// with the given `replace_with` iterator and yields the removed items.
|
||||
/// `replace_with` does not need to be the same length as `range`.
|
||||
///
|
||||
/// `range` is removed even if the iterator is not consumed until the end.
|
||||
/// `range` is removed even if the `Splice` iterator is not consumed before it is dropped.
|
||||
///
|
||||
/// It is unspecified how many elements are removed from the vector
|
||||
/// if the `Splice` value is leaked.
|
||||
|
|
@ -3613,8 +3613,18 @@ impl<T, A: Allocator> Vec<T, A> {
|
|||
/// let mut v = vec![1, 2, 3, 4];
|
||||
/// let new = [7, 8, 9];
|
||||
/// let u: Vec<_> = v.splice(1..3, new).collect();
|
||||
/// assert_eq!(v, &[1, 7, 8, 9, 4]);
|
||||
/// assert_eq!(u, &[2, 3]);
|
||||
/// assert_eq!(v, [1, 7, 8, 9, 4]);
|
||||
/// assert_eq!(u, [2, 3]);
|
||||
/// ```
|
||||
///
|
||||
/// Using `splice` to insert new items into a vector efficiently at a specific position
|
||||
/// indicated by an empty range:
|
||||
///
|
||||
/// ```
|
||||
/// let mut v = vec![1, 5];
|
||||
/// let new = [2, 3, 4];
|
||||
/// v.splice(1..1, new);
|
||||
/// assert_eq!(v, [1, 2, 3, 4, 5]);
|
||||
/// ```
|
||||
#[cfg(not(no_global_oom_handling))]
|
||||
#[inline]
|
||||
|
|
|
|||
|
|
@ -1,4 +1,12 @@
|
|||
//@ known-bug: #114484
|
||||
//@ build-fail
|
||||
|
||||
//@ error-pattern: reached the recursion limit while instantiating
|
||||
//@ error-pattern: reached the recursion limit finding the struct tail
|
||||
|
||||
// Regression test for #114484: This used to ICE during monomorphization, because we treated
|
||||
// `<VirtualWrapper<...> as Pointee>::Metadata` as a rigid projection after reaching the recursion
|
||||
// limit when finding the struct tail.
|
||||
|
||||
use std::marker::PhantomData;
|
||||
|
||||
trait MyTrait {
|
||||
|
|
@ -0,0 +1,86 @@
|
|||
error: reached the recursion limit finding the struct tail for `[u8; 256]`
|
||||
|
|
||||
= help: consider increasing the recursion limit by adding a `#![recursion_limit = "256"]`
|
||||
|
||||
error: reached the recursion limit finding the struct tail for `[u8; 256]`
|
||||
|
|
||||
= help: consider increasing the recursion limit by adding a `#![recursion_limit = "256"]`
|
||||
= note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no`
|
||||
|
||||
error: reached the recursion limit finding the struct tail for `[u8; 256]`
|
||||
|
|
||||
= help: consider increasing the recursion limit by adding a `#![recursion_limit = "256"]`
|
||||
= note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no`
|
||||
|
||||
error: reached the recursion limit finding the struct tail for `[u8; 256]`
|
||||
|
|
||||
= help: consider increasing the recursion limit by adding a `#![recursion_limit = "256"]`
|
||||
= note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no`
|
||||
|
||||
note: the above error was encountered while instantiating `fn virtualize_my_trait::<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<SomeData<256>, 0>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>>`
|
||||
--> $DIR/infinite-instantiation-struct-tail-ice-114484.rs:26:18
|
||||
|
|
||||
LL | unsafe { virtualize_my_trait(L, self) }
|
||||
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
||||
|
||||
error: reached the recursion limit finding the struct tail for `SomeData<256>`
|
||||
|
|
||||
= help: consider increasing the recursion limit by adding a `#![recursion_limit = "256"]`
|
||||
|
||||
error: reached the recursion limit finding the struct tail for `SomeData<256>`
|
||||
|
|
||||
= help: consider increasing the recursion limit by adding a `#![recursion_limit = "256"]`
|
||||
= note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no`
|
||||
|
||||
error: reached the recursion limit finding the struct tail for `SomeData<256>`
|
||||
|
|
||||
= help: consider increasing the recursion limit by adding a `#![recursion_limit = "256"]`
|
||||
= note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no`
|
||||
|
||||
error: reached the recursion limit finding the struct tail for `SomeData<256>`
|
||||
|
|
||||
= help: consider increasing the recursion limit by adding a `#![recursion_limit = "256"]`
|
||||
= note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no`
|
||||
|
||||
note: the above error was encountered while instantiating `fn virtualize_my_trait::<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<SomeData<256>, 0>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>>`
|
||||
--> $DIR/infinite-instantiation-struct-tail-ice-114484.rs:26:18
|
||||
|
|
||||
LL | unsafe { virtualize_my_trait(L, self) }
|
||||
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
||||
|
||||
error: reached the recursion limit finding the struct tail for `VirtualWrapper<SomeData<256>, 0>`
|
||||
|
|
||||
= help: consider increasing the recursion limit by adding a `#![recursion_limit = "256"]`
|
||||
|
||||
error: reached the recursion limit finding the struct tail for `VirtualWrapper<SomeData<256>, 0>`
|
||||
|
|
||||
= help: consider increasing the recursion limit by adding a `#![recursion_limit = "256"]`
|
||||
= note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no`
|
||||
|
||||
error: reached the recursion limit finding the struct tail for `VirtualWrapper<SomeData<256>, 0>`
|
||||
|
|
||||
= help: consider increasing the recursion limit by adding a `#![recursion_limit = "256"]`
|
||||
= note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no`
|
||||
|
||||
error: reached the recursion limit finding the struct tail for `VirtualWrapper<SomeData<256>, 0>`
|
||||
|
|
||||
= help: consider increasing the recursion limit by adding a `#![recursion_limit = "256"]`
|
||||
= note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no`
|
||||
|
||||
note: the above error was encountered while instantiating `fn virtualize_my_trait::<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<SomeData<256>, 0>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>, 1>>`
|
||||
--> $DIR/infinite-instantiation-struct-tail-ice-114484.rs:26:18
|
||||
|
|
||||
LL | unsafe { virtualize_my_trait(L, self) }
|
||||
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
||||
|
||||
error: reached the recursion limit while instantiating `<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<VirtualWrapper<..., 1>, 1>, 1>, 1>, 1> as MyTrait>::virtualize`
|
||||
|
|
||||
note: `<VirtualWrapper<T, L> as MyTrait>::virtualize` defined here
|
||||
--> $DIR/infinite-instantiation-struct-tail-ice-114484.rs:25:5
|
||||
|
|
||||
LL | fn virtualize(&self) -> &dyn MyTrait {
|
||||
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
||||
= note: the full type name has been written to '$TEST_BUILD_DIR/infinite/infinite-instantiation-struct-tail-ice-114484/infinite-instantiation-struct-tail-ice-114484.long-type.txt'
|
||||
|
||||
error: aborting due to 13 previous errors
|
||||
|
||||
|
|
@ -13,5 +13,6 @@ struct Other {
|
|||
fn main() {
|
||||
unsafe {
|
||||
std::mem::transmute::<Option<()>, Option<&Other>>(None);
|
||||
//~^ ERROR cannot transmute
|
||||
}
|
||||
}
|
||||
|
|
|
|||
|
|
@ -13,7 +13,16 @@ LL | type RefTarget;
|
|||
LL | impl Trait for () where Missing: Trait {}
|
||||
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ missing `RefTarget` in implementation
|
||||
|
||||
error: aborting due to 2 previous errors
|
||||
error[E0512]: cannot transmute between types of different sizes, or dependently-sized types
|
||||
--> $DIR/ice-struct-tail-normalization-113272.rs:15:9
|
||||
|
|
||||
LL | std::mem::transmute::<Option<()>, Option<&Other>>(None);
|
||||
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
||||
|
|
||||
= note: source type: `Option<()>` (8 bits)
|
||||
= note: target type: `Option<&Other>` (unable to determine layout for `Other` because `<() as Trait>::RefTarget` cannot be normalized)
|
||||
|
||||
Some errors have detailed explanations: E0046, E0412.
|
||||
error: aborting due to 3 previous errors
|
||||
|
||||
Some errors have detailed explanations: E0046, E0412, E0512.
|
||||
For more information about an error, try `rustc --explain E0046`.
|
||||
|
|
|
|||
Loading…
Add table
Add a link
Reference in a new issue