diff --git a/compiler/rustc_borrowck/src/type_check/mod.rs b/compiler/rustc_borrowck/src/type_check/mod.rs index 6c4b2b3724e34..dc0f0e7cd3c4c 100644 --- a/compiler/rustc_borrowck/src/type_check/mod.rs +++ b/compiler/rustc_borrowck/src/type_check/mod.rs @@ -584,6 +584,7 @@ impl<'a, 'b, 'tcx> TypeVerifier<'a, 'b, 'tcx> { // modify their locations. let all_facts = &mut None; let mut constraints = Default::default(); + let mut type_tests = Default::default(); let mut closure_bounds = Default::default(); let mut liveness_constraints = LivenessValues::new(Rc::new(RegionValueElements::new(&promoted_body))); @@ -595,6 +596,7 @@ impl<'a, 'b, 'tcx> TypeVerifier<'a, 'b, 'tcx> { &mut this.cx.borrowck_context.constraints.outlives_constraints, &mut constraints, ); + mem::swap(&mut this.cx.borrowck_context.constraints.type_tests, &mut type_tests); mem::swap( &mut this.cx.borrowck_context.constraints.closure_bounds_mapping, &mut closure_bounds, @@ -619,6 +621,13 @@ impl<'a, 'b, 'tcx> TypeVerifier<'a, 'b, 'tcx> { swap_constraints(self); let locations = location.to_locations(); + + // Use location of promoted const in collected constraints + for type_test in type_tests.iter() { + let mut type_test = type_test.clone(); + type_test.locations = locations; + self.cx.borrowck_context.constraints.type_tests.push(type_test) + } for constraint in constraints.outlives().iter() { let mut constraint = constraint.clone(); constraint.locations = locations; diff --git a/src/test/ui/consts/issue-102117.rs b/src/test/ui/consts/issue-102117.rs new file mode 100644 index 0000000000000..b77342c4135e1 --- /dev/null +++ b/src/test/ui/consts/issue-102117.rs @@ -0,0 +1,30 @@ +#![feature(inline_const, const_type_id)] + +use std::alloc::Layout; +use std::any::TypeId; +use std::mem::transmute; +use std::ptr::drop_in_place; + +pub struct VTable { + layout: Layout, + type_id: TypeId, + drop_in_place: unsafe fn(*mut ()), +} + +impl VTable { + pub fn new() -> &'static Self { + const { + //~^ ERROR the parameter type `T` may not live long enough + //~| ERROR the parameter type `T` may not live long enough + &VTable { + layout: Layout::new::(), + type_id: TypeId::of::(), + drop_in_place: unsafe { + transmute::(drop_in_place::) + }, + } + } + } +} + +fn main() {} diff --git a/src/test/ui/consts/issue-102117.stderr b/src/test/ui/consts/issue-102117.stderr new file mode 100644 index 0000000000000..eb4b329bd8134 --- /dev/null +++ b/src/test/ui/consts/issue-102117.stderr @@ -0,0 +1,37 @@ +error[E0310]: the parameter type `T` may not live long enough + --> $DIR/issue-102117.rs:16:9 + | +LL | / const { +LL | | +LL | | +LL | | &VTable { +... | +LL | | } +LL | | } + | |_________^ ...so that the type `T` will meet its required lifetime bounds + | +help: consider adding an explicit lifetime bound... + | +LL | pub fn new() -> &'static Self { + | +++++++++ + +error[E0310]: the parameter type `T` may not live long enough + --> $DIR/issue-102117.rs:16:9 + | +LL | / const { +LL | | +LL | | +LL | | &VTable { +... | +LL | | } +LL | | } + | |_________^ ...so that the type `T` will meet its required lifetime bounds + | +help: consider adding an explicit lifetime bound... + | +LL | pub fn new() -> &'static Self { + | +++++++++ + +error: aborting due to 2 previous errors + +For more information about this error, try `rustc --explain E0310`.