// Extract the values of the free regions in `user_closure_ty`
// into a vector. These are the regions that we will be
// relating to one another.
- let closure_mapping =
- &UniversalRegions::closure_mapping(tcx, user_closure_ty, self.num_external_vids);
+ let closure_mapping = &UniversalRegions::closure_mapping(
+ tcx, user_closure_ty, self.num_external_vids, tcx.closure_base_def_id(closure_def_id));
debug!("apply_requirements: closure_mapping={:?}", closure_mapping);
// Create the predicates.
tcx: TyCtxt<'_, '_, 'tcx>,
closure_ty: Ty<'tcx>,
expected_num_vars: usize,
+ closure_base_def_id: DefId,
) -> IndexVec<RegionVid, ty::Region<'tcx>> {
let mut region_mapping = IndexVec::with_capacity(expected_num_vars);
region_mapping.push(tcx.types.re_static);
region_mapping.push(fr);
});
+ for_each_late_bound_region_defined_on(
+ tcx, closure_base_def_id, |r| { region_mapping.push(r); });
+
assert_eq!(
region_mapping.len(),
expected_num_vars,
let mut indices = self.compute_indices(fr_static, defining_ty);
debug!("build: indices={:?}", indices);
+ let closure_base_def_id = self.infcx.tcx.closure_base_def_id(self.mir_def_id);
+
+ // If this is a closure or generator, then the late-bound regions from the enclosing
+ // function are actually external regions to us. For example, here, 'a is not local
+ // to the closure c (although it is local to the fn foo):
+ // fn foo<'a>() {
+ // let c = || { let x: &'a u32 = ...; }
+ // }
+ if self.mir_def_id != closure_base_def_id {
+ self.infcx.replace_late_bound_regions_with_nll_infer_vars(
+ self.mir_def_id,
+ &mut indices)
+ }
+
let bound_inputs_and_output = self.compute_inputs_and_output(&indices, defining_ty);
// "Liberate" the late-bound regions. These correspond to
&bound_inputs_and_output,
&mut indices,
);
+ // Converse of above, if this is a function then the late-bound regions declared on its
+ // signature are local to the fn.
+ if self.mir_def_id == closure_base_def_id {
+ self.infcx.replace_late_bound_regions_with_nll_infer_vars(
+ self.mir_def_id,
+ &mut indices);
+ }
+
let fr_fn_body = self.infcx.next_nll_region_var(FR).to_region_vid();
let num_universals = self.infcx.num_region_vars();
) -> T
where
T: TypeFoldable<'tcx>;
+
+
+ fn replace_late_bound_regions_with_nll_infer_vars(
+ &self,
+ mir_def_id: DefId,
+ indices: &mut UniversalRegionIndices<'tcx>
+ );
}
impl<'cx, 'gcx, 'tcx> InferCtxtExt<'tcx> for InferCtxt<'cx, 'gcx, 'tcx> {
});
value
}
+
+ /// Finds late-bound regions that do not appear in the parameter listing and adds them to the
+ /// indices vector. Typically, we identify late-bound regions as we process the inputs and
+ /// outputs of the closure/function. However, sometimes there are late-bound regions which do
+ /// not appear in the fn parameters but which are nonetheless in scope. The simplest case of
+ /// this are unused functions, like fn foo<'a>() { } (see eg., #51351). Despite not being used,
+ /// users can still reference these regions (e.g., let x: &'a u32 = &22;), so we need to create
+ /// entries for them and store them in the indices map. This code iterates over the complete
+ /// set of late-bound regions and checks for any that we have not yet seen, adding them to the
+ /// inputs vector.
+ fn replace_late_bound_regions_with_nll_infer_vars(
+ &self,
+ mir_def_id: DefId,
+ indices: &mut UniversalRegionIndices<'tcx>,
+ ) {
+ let closure_base_def_id = self.tcx.closure_base_def_id(mir_def_id);
+ for_each_late_bound_region_defined_on(self.tcx, closure_base_def_id, |r| {
+ if !indices.indices.contains_key(&r) {
+ let region_vid = self.next_nll_region_var(FR);
+ indices.insert_late_bound_region(r, region_vid.to_region_vid());
+ }});
+ }
}
impl<'tcx> UniversalRegionIndices<'tcx> {
self.outlives(longer, shorter)
}
}
+
+/// Iterates over the late-bound regions defined on fn_def_id and
+/// invokes `f` with the liberated form of each one.
+fn for_each_late_bound_region_defined_on<'tcx>(
+ tcx: TyCtxt<'_, '_, 'tcx>,
+ fn_def_id: DefId,
+ mut f: impl FnMut(ty::Region<'tcx>)
+ ) {
+ if let Some(late_bounds) = tcx.is_late_bound_map(fn_def_id.index) {
+ for late_bound in late_bounds.iter() {
+ let hir_id = HirId{ owner: fn_def_id.index, local_id: *late_bound };
+ let region_node_id = tcx.hir.hir_to_node_id(hir_id);
+ let name = tcx.hir.name(region_node_id).as_interned_str();
+ let region_def_id = tcx.hir.local_def_id(region_node_id);
+ let liberated_region = tcx.mk_region(ty::ReFree(ty::FreeRegion {
+ scope: fn_def_id,
+ bound_region: ty::BoundRegion::BrNamed(region_def_id, name),
+ }));
+ f(liberated_region);
+ }
+ }
+}
i16,
for<'r, 's, 't0, 't1, 't2, 't3> extern "rust-call" fn((&ReLateBound(DebruijnIndex(0), BrNamed(crate0:DefIndex(0:0), 'r)) std::cell::Cell<&'_#1r &ReLateBound(DebruijnIndex(0), BrNamed(crate0:DefIndex(0:0), 's)) u32>, &ReLateBound(DebruijnIndex(0), BrNamed(crate0:DefIndex(0:0), 't0)) std::cell::Cell<&ReLateBound(DebruijnIndex(0), BrNamed(crate0:DefIndex(0:0), 't1)) &'_#2r u32>, &ReLateBound(DebruijnIndex(0), BrNamed(crate0:DefIndex(0:0), 't2)) std::cell::Cell<&ReLateBound(DebruijnIndex(0), BrNamed(crate0:DefIndex(0:0), 's)) u32>, &ReLateBound(DebruijnIndex(0), BrNamed(crate0:DefIndex(0:0), 't3)) std::cell::Cell<&ReLateBound(DebruijnIndex(0), BrNamed(crate0:DefIndex(0:0), 't1)) u32>))
]
- = note: number of external vids: 3
+ = note: number of external vids: 5
= note: where '_#1r: '_#2r
error[E0623]: lifetime mismatch
i16,
for<'r, 's, 't0, 't1, 't2> extern "rust-call" fn((&ReLateBound(DebruijnIndex(0), BrNamed(crate0:DefIndex(0:0), 'r)) std::cell::Cell<&'_#1r &ReLateBound(DebruijnIndex(0), BrNamed(crate0:DefIndex(0:0), 's)) u32>, &ReLateBound(DebruijnIndex(0), BrNamed(crate0:DefIndex(0:0), 't0)) std::cell::Cell<&ReLateBound(DebruijnIndex(0), BrNamed(crate0:DefIndex(0:0), 's)) u32>, &ReLateBound(DebruijnIndex(0), BrNamed(crate0:DefIndex(0:0), 't1)) std::cell::Cell<&ReLateBound(DebruijnIndex(0), BrNamed(crate0:DefIndex(0:0), 't2)) u32>))
]
- = note: number of external vids: 2
+ = note: number of external vids: 4
= note: where '_#1r: '_#0r
error: borrowed data escapes outside of function
i16,
for<'r, 's, 't0, 't1, 't2, 't3> extern "rust-call" fn((&ReLateBound(DebruijnIndex(0), BrNamed(crate0:DefIndex(0:0), 'r)) std::cell::Cell<&'_#1r &ReLateBound(DebruijnIndex(0), BrNamed(crate0:DefIndex(0:0), 's)) u32>, &ReLateBound(DebruijnIndex(0), BrNamed(crate0:DefIndex(0:0), 't0)) std::cell::Cell<&'_#2r &ReLateBound(DebruijnIndex(0), BrNamed(crate0:DefIndex(0:0), 't1)) u32>, &ReLateBound(DebruijnIndex(0), BrNamed(crate0:DefIndex(0:0), 't2)) std::cell::Cell<&ReLateBound(DebruijnIndex(0), BrNamed(crate0:DefIndex(0:0), 's)) u32>, &ReLateBound(DebruijnIndex(0), BrNamed(crate0:DefIndex(0:0), 't3)) std::cell::Cell<&ReLateBound(DebruijnIndex(0), BrNamed(crate0:DefIndex(0:0), 't1)) u32>))
]
- = note: number of external vids: 3
+ = note: number of external vids: 5
= note: where '_#1r: '_#0r
error: borrowed data escapes outside of function
i16,
for<'r, 's> extern "rust-call" fn((std::cell::Cell<&'_#1r &ReLateBound(DebruijnIndex(0), BrNamed(crate0:DefIndex(0:0), 'r)) u32>, std::cell::Cell<&ReLateBound(DebruijnIndex(0), BrNamed(crate0:DefIndex(0:0), 's)) &'_#2r u32>, std::cell::Cell<&ReLateBound(DebruijnIndex(0), BrNamed(crate0:DefIndex(0:0), 'r)) u32>, std::cell::Cell<&ReLateBound(DebruijnIndex(0), BrNamed(crate0:DefIndex(0:0), 's)) u32>))
]
- = note: number of external vids: 3
+ = note: number of external vids: 5
= note: where '_#1r: '_#2r
error[E0623]: lifetime mismatch
i16,
for<'r, 's> extern "rust-call" fn((std::cell::Cell<&'_#1r &ReLateBound(DebruijnIndex(0), BrNamed(crate0:DefIndex(0:0), 'r)) u32>, std::cell::Cell<&ReLateBound(DebruijnIndex(0), BrNamed(crate0:DefIndex(0:0), 's)) &'_#2r u32>, std::cell::Cell<&ReLateBound(DebruijnIndex(0), BrNamed(crate0:DefIndex(0:0), 'r)) u32>, std::cell::Cell<&ReLateBound(DebruijnIndex(0), BrNamed(crate0:DefIndex(0:0), 's)) u32>))
]
- = note: number of external vids: 3
+ = note: number of external vids: 4
= note: where '_#1r: '_#2r
note: No external requirements
i32,
extern "rust-call" fn((T,))
]
- = note: number of external vids: 2
+ = note: number of external vids: 3
= note: where T: '_#1r
error[E0309]: the parameter type `T` may not live long enough
--- /dev/null
+// Copyright 2012 The Rust Project Developers. See the COPYRIGHT
+// file at the top-level directory of this distribution and at
+// http://rust-lang.org/COPYRIGHT.
+//
+// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
+// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
+// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
+// option. This file may not be copied, modified, or distributed
+// except according to those terms.
+//
+// Regression test for #51351 and #52133: In the case of #51351,
+// late-bound regions (like 'a) that were unused within the arguments of
+// a function were overlooked and could case an ICE. In the case of #52133,
+// LBR defined on the creator function needed to be added to the free regions
+// of the closure, as they were not present in the closure's generic
+// declarations otherwise.
+//
+// compile-pass
+
+#![feature(nll)]
+
+fn creash<'a>() {
+ let x: &'a () = &();
+}
+
+fn produce<'a>() {
+ move || {
+ let x: &'a () = &();
+ };
+}
+
+fn main() {}
--- /dev/null
+// Copyright 2012 The Rust Project Developers. See the COPYRIGHT
+// file at the top-level directory of this distribution and at
+// http://rust-lang.org/COPYRIGHT.
+//
+// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
+// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
+// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
+// option. This file may not be copied, modified, or distributed
+// except according to those terms.
+//
+
+#![allow(warnings)]
+#![feature(nll)]
+
+trait Bazinga { }
+impl<F> Bazinga for F { }
+
+fn produce1<'a>(data: &'a u32) -> impl Bazinga + 'a {
+ let x = move || {
+ let _data: &'a u32 = data;
+ };
+ x
+}
+
+fn produce2<'a>(data: &'a mut Vec<&'a u32>, value: &'a u32) -> impl Bazinga + 'a {
+ let x = move || {
+ let value: &'a u32 = value;
+ data.push(value);
+ };
+ x
+}
+
+
+fn produce3<'a, 'b: 'a>(data: &'a mut Vec<&'a u32>, value: &'b u32) -> impl Bazinga + 'a {
+ let x = move || {
+ let value: &'a u32 = value;
+ data.push(value);
+ };
+ x
+}
+
+fn produce_err<'a, 'b: 'a>(data: &'b mut Vec<&'b u32>, value: &'a u32) -> impl Bazinga + 'b {
+ let x = move || { //~ ERROR lifetime mismatch
+ let value: &'a u32 = value;
+ data.push(value);
+ };
+ x
+}
+
+fn main() { }
--- /dev/null
+error[E0623]: lifetime mismatch
+ --> $DIR/issue-52133.rs:43:9
+ |
+LL | fn produce_err<'a, 'b: 'a>(data: &'b mut Vec<&'b u32>, value: &'a u32) -> impl Bazinga + 'b {
+ | -------------------- ------- these two types are declared with different lifetimes...
+LL | let x = move || { //~ ERROR lifetime mismatch
+ | ^ ...but data from `value` flows into `data` here
+
+error: aborting due to previous error
+
+For more information about this error, try `rustc --explain E0623`.
i32,
extern "rust-call" fn((std::boxed::Box<T>,)) -> std::boxed::Box<(dyn Anything + '_#2r)>
]
- = note: number of external vids: 3
+ = note: number of external vids: 4
= note: where <T as std::iter::Iterator>::Item: '_#2r
error[E0309]: the associated type `<T as std::iter::Iterator>::Item` may not live long enough
i32,
extern "rust-call" fn((std::boxed::Box<T>,)) -> std::boxed::Box<(dyn Anything + '_#2r)>
]
- = note: number of external vids: 3
+ = note: number of external vids: 4
= note: where <T as std::iter::Iterator>::Item: '_#2r
note: No external requirements
i32,
extern "rust-call" fn((std::boxed::Box<T>,)) -> std::boxed::Box<(dyn Anything + '_#3r)>
]
- = note: number of external vids: 4
+ = note: number of external vids: 5
= note: where <T as std::iter::Iterator>::Item: '_#3r
error[E0309]: the associated type `<T as std::iter::Iterator>::Item` may not live long enough
i32,
extern "rust-call" fn((std::boxed::Box<T>,)) -> std::boxed::Box<(dyn Anything + '_#3r)>
]
- = note: number of external vids: 4
+ = note: number of external vids: 5
= note: where <T as std::iter::Iterator>::Item: '_#3r
note: No external requirements
i32,
extern "rust-call" fn((std::cell::Cell<&'_#2r ()>, T))
]
- = note: number of external vids: 3
+ = note: number of external vids: 5
= note: where T: '_#2r
= note: where '_#1r: '_#2r
i32,
extern "rust-call" fn((std::cell::Cell<&'_#3r ()>, T))
]
- = note: number of external vids: 4
+ = note: number of external vids: 5
= note: where T: '_#3r
= note: where '_#2r: '_#3r
i32,
extern "rust-call" fn((std::cell::Cell<&'_#3r ()>, T))
]
- = note: number of external vids: 4
+ = note: number of external vids: 5
= note: where T: '_#3r
= note: where '_#2r: '_#3r
i32,
extern "rust-call" fn((std::cell::Cell<&'_#3r ()>, T))
]
- = note: number of external vids: 4
+ = note: number of external vids: 5
= note: where T: '_#3r
= note: where '_#2r: '_#3r
i32,
extern "rust-call" fn((std::cell::Cell<&'_#2r ()>, T))
]
- = note: number of external vids: 3
+ = note: number of external vids: 5
= note: where '_#1r: '_#2r
error: unsatisfied lifetime constraints
i32,
extern "rust-call" fn((std::cell::Cell<&'_#3r ()>, T))
]
- = note: number of external vids: 4
+ = note: number of external vids: 5
= note: where '_#2r: '_#3r
error: unsatisfied lifetime constraints
i32,
extern "rust-call" fn((std::cell::Cell<&'_#3r ()>, T))
]
- = note: number of external vids: 4
+ = note: number of external vids: 5
= note: where '_#2r: '_#3r
error: unsatisfied lifetime constraints
i32,
extern "rust-call" fn((std::cell::Cell<&'_#3r ()>, T))
]
- = note: number of external vids: 4
+ = note: number of external vids: 5
= note: where '_#2r: '_#3r
note: No external requirements
i32,
extern "rust-call" fn((std::cell::Cell<&'_#2r ()>, T))
]
- = note: number of external vids: 3
+ = note: number of external vids: 4
= note: where '_#1r: '_#2r
note: No external requirements
{
with_signature(cell, t, |cell, t| require(cell, t));
//~^ WARNING not reporting region error due to nll
- //~| ERROR associated type `<T as Anything<'_#5r, '_#6r>>::AssocType` may not live long enough
+ //~| ERROR associated type `<T as Anything<'_#6r, '_#7r>>::AssocType` may not live long enough
}
#[rustc_regions]
{
with_signature(cell, t, |cell, t| require(cell, t));
//~^ WARNING not reporting region error due to nll
- //~| ERROR associated type `<T as Anything<'_#6r, '_#7r>>::AssocType` may not live long enough
+ //~| ERROR associated type `<T as Anything<'_#7r, '_#8r>>::AssocType` may not live long enough
}
#[rustc_regions]
with_signature(cell, t, |cell, t| require(cell, t));
//~^ WARNING not reporting region error due to nll
- //~| ERROR associated type `<T as Anything<'_#6r, '_#7r>>::AssocType` may not live long enough
+ //~| ERROR associated type `<T as Anything<'_#7r, '_#8r>>::AssocType` may not live long enough
}
#[rustc_regions]
i32,
extern "rust-call" fn((std::cell::Cell<&'_#3r ()>, T))
]
- = note: number of external vids: 4
+ = note: number of external vids: 6
= note: where <T as Anything<ReClosureBound('_#1r), ReClosureBound('_#2r)>>::AssocType: '_#3r
-error[E0309]: the associated type `<T as Anything<'_#5r, '_#6r>>::AssocType` may not live long enough
+error[E0309]: the associated type `<T as Anything<'_#6r, '_#7r>>::AssocType` may not live long enough
--> $DIR/projection-two-region-trait-bound-closure.rs:48:29
|
LL | with_signature(cell, t, |cell, t| require(cell, t));
| ^^^^^^^^^^^^^^^^^^^^^^^^^^
|
- = help: consider adding an explicit lifetime bound `<T as Anything<'_#5r, '_#6r>>::AssocType: ReFree(DefId(0/0:8 ~ projection_two_region_trait_bound_closure[317d]::no_relationships_late[0]), BrNamed(crate0:DefIndex(1:18), 'a))`...
+ = help: consider adding an explicit lifetime bound `<T as Anything<'_#6r, '_#7r>>::AssocType: ReFree(DefId(0/0:8 ~ projection_two_region_trait_bound_closure[317d]::no_relationships_late[0]), BrNamed(crate0:DefIndex(1:18), 'a))`...
note: No external requirements
--> $DIR/projection-two-region-trait-bound-closure.rs:44:1
LL | | T: Anything<'b, 'c>,
LL | | {
... |
-LL | | //~| ERROR associated type `<T as Anything<'_#5r, '_#6r>>::AssocType` may not live long enough
+LL | | //~| ERROR associated type `<T as Anything<'_#6r, '_#7r>>::AssocType` may not live long enough
LL | | }
| |_^
|
i32,
extern "rust-call" fn((std::cell::Cell<&'_#4r ()>, T))
]
- = note: number of external vids: 5
+ = note: number of external vids: 6
= note: where <T as Anything<ReClosureBound('_#2r), ReClosureBound('_#3r)>>::AssocType: '_#4r
-error[E0309]: the associated type `<T as Anything<'_#6r, '_#7r>>::AssocType` may not live long enough
+error[E0309]: the associated type `<T as Anything<'_#7r, '_#8r>>::AssocType` may not live long enough
--> $DIR/projection-two-region-trait-bound-closure.rs:59:29
|
LL | with_signature(cell, t, |cell, t| require(cell, t));
| ^^^^^^^^^^^^^^^^^^^^^^^^^^
|
- = help: consider adding an explicit lifetime bound `<T as Anything<'_#6r, '_#7r>>::AssocType: ReEarlyBound(0, 'a)`...
+ = help: consider adding an explicit lifetime bound `<T as Anything<'_#7r, '_#8r>>::AssocType: ReEarlyBound(0, 'a)`...
note: No external requirements
--> $DIR/projection-two-region-trait-bound-closure.rs:54:1
LL | | T: Anything<'b, 'c>,
LL | | 'a: 'a,
... |
-LL | | //~| ERROR associated type `<T as Anything<'_#6r, '_#7r>>::AssocType` may not live long enough
+LL | | //~| ERROR associated type `<T as Anything<'_#7r, '_#8r>>::AssocType` may not live long enough
LL | | }
| |_^
|
i32,
extern "rust-call" fn((std::cell::Cell<&'_#4r ()>, T))
]
- = note: number of external vids: 5
+ = note: number of external vids: 6
= note: where <T as Anything<ReClosureBound('_#2r), ReClosureBound('_#3r)>>::AssocType: '_#4r
-error[E0309]: the associated type `<T as Anything<'_#6r, '_#7r>>::AssocType` may not live long enough
+error[E0309]: the associated type `<T as Anything<'_#7r, '_#8r>>::AssocType` may not live long enough
--> $DIR/projection-two-region-trait-bound-closure.rs:80:29
|
LL | with_signature(cell, t, |cell, t| require(cell, t));
| ^^^^^^^^^^^^^^^^^^^^^^^^^^
|
- = help: consider adding an explicit lifetime bound `<T as Anything<'_#6r, '_#7r>>::AssocType: ReEarlyBound(0, 'a)`...
+ = help: consider adding an explicit lifetime bound `<T as Anything<'_#7r, '_#8r>>::AssocType: ReEarlyBound(0, 'a)`...
note: No external requirements
--> $DIR/projection-two-region-trait-bound-closure.rs:65:1
LL | | T: Anything<'b, 'c>,
LL | | T::AssocType: 'a,
... |
-LL | | //~| ERROR associated type `<T as Anything<'_#6r, '_#7r>>::AssocType` may not live long enough
+LL | | //~| ERROR associated type `<T as Anything<'_#7r, '_#8r>>::AssocType` may not live long enough
LL | | }
| |_^
|
i32,
extern "rust-call" fn((std::cell::Cell<&'_#4r ()>, T))
]
- = note: number of external vids: 5
+ = note: number of external vids: 6
= note: where <T as Anything<ReClosureBound('_#2r), ReClosureBound('_#3r)>>::AssocType: '_#4r
note: No external requirements
i32,
extern "rust-call" fn((std::cell::Cell<&'_#4r ()>, T))
]
- = note: number of external vids: 5
+ = note: number of external vids: 6
= note: where <T as Anything<ReClosureBound('_#2r), ReClosureBound('_#3r)>>::AssocType: '_#4r
note: No external requirements
i32,
extern "rust-call" fn((std::cell::Cell<&'_#2r ()>, T))
]
- = note: number of external vids: 3
+ = note: number of external vids: 5
= note: where <T as Anything<ReClosureBound('_#1r), ReClosureBound('_#1r)>>::AssocType: '_#2r
error: unsatisfied lifetime constraints
i32,
extern "rust-call" fn((std::cell::Cell<&'_#3r ()>, T))
]
- = note: number of external vids: 4
+ = note: number of external vids: 5
= note: where <T as Anything<ReClosureBound('_#2r), ReClosureBound('_#2r)>>::AssocType: '_#3r
note: No external requirements
i32,
extern "rust-call" fn((std::cell::Cell<&'_#2r ()>, T))
]
- = note: number of external vids: 3
+ = note: number of external vids: 4
= note: where <T as Anything<ReClosureBound('_#1r), ReClosureBound('_#1r)>>::AssocType: '_#2r
note: No external requirements
i16,
for<'r, 's> extern "rust-call" fn((std::option::Option<std::cell::Cell<&'_#1r &ReLateBound(DebruijnIndex(0), BrNamed(crate0:DefIndex(0:0), 'r)) ()>>, &ReLateBound(DebruijnIndex(0), BrNamed(crate0:DefIndex(0:0), 's)) T))
]
- = note: number of external vids: 2
+ = note: number of external vids: 3
= note: where T: '_#1r
note: No external requirements
i16,
for<'r, 's> extern "rust-call" fn((std::option::Option<std::cell::Cell<&'_#1r &ReLateBound(DebruijnIndex(0), BrNamed(crate0:DefIndex(0:0), 'r)) ()>>, &ReLateBound(DebruijnIndex(0), BrNamed(crate0:DefIndex(0:0), 's)) T))
]
- = note: number of external vids: 2
+ = note: number of external vids: 4
= note: where T: '_#1r
error[E0309]: the parameter type `T` may not live long enough
i32,
extern "rust-call" fn((std::boxed::Box<T>,)) -> std::boxed::Box<(dyn std::fmt::Debug + '_#2r)>
]
- = note: number of external vids: 3
+ = note: number of external vids: 4
= note: where T: '_#2r
error[E0309]: the parameter type `T` may not live long enough
i32,
extern "rust-call" fn((std::cell::Cell<&'_#1r ()>, T))
]
- = note: number of external vids: 2
+ = note: number of external vids: 4
= note: where T: '_#1r
error[E0309]: the parameter type `T` may not live long enough
i32,
extern "rust-call" fn((std::cell::Cell<&'_#2r ()>, T))
]
- = note: number of external vids: 3
+ = note: number of external vids: 4
= note: where T: '_#2r
note: No external requirements
i32,
extern "rust-call" fn((std::cell::Cell<&'_#2r ()>, T))
]
- = note: number of external vids: 3
+ = note: number of external vids: 5
= note: where T: '_#2r
error[E0309]: the parameter type `T` may not live long enough
i32,
extern "rust-call" fn((std::cell::Cell<&'_#3r ()>, T))
]
- = note: number of external vids: 4
+ = note: number of external vids: 5
= note: where T: '_#3r
note: No external requirements
projects / rust.git / commitdiff