diff --git a/compiler/rustc_hir_typeck/src/cast.rs b/compiler/rustc_hir_typeck/src/cast.rs index 316a2bf08cb03..9e9a1f678edd7 100644 --- a/compiler/rustc_hir_typeck/src/cast.rs +++ b/compiler/rustc_hir_typeck/src/cast.rs @@ -141,7 +141,10 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { | ty::Never | ty::Dynamic(_, _, ty::DynStar) | ty::Error(_) => { - self.dcx().span_bug(span, format!("`{t:?}` should be sized but is not?")); + let guar = self + .dcx() + .span_delayed_bug(span, format!("`{t:?}` should be sized but is not?")); + return Err(guar); } }) } diff --git a/tests/ui/cast/ice-cast-type-with-error-124848.rs b/tests/ui/cast/ice-cast-type-with-error-124848.rs new file mode 100644 index 0000000000000..9b3732b02db43 --- /dev/null +++ b/tests/ui/cast/ice-cast-type-with-error-124848.rs @@ -0,0 +1,18 @@ +// Regression test for ICE #124848 +// Tests that there is no ICE when a cast +// involves a type with error + +use std::cell::Cell; + +struct MyType<'a>(Cell>>, Pin); +//~^ ERROR use of undeclared lifetime name `'unpinned` +//~| ERROR cannot find type `Pin` in this scope + +fn main() { + let mut unpinned = MyType(Cell::new(None)); + //~^ ERROR his struct takes 2 arguments but 1 argument was supplied + let bad_addr = &unpinned as *const Cell>> as usize; + //~^ ERROR use of undeclared lifetime name `'a` + //~| ERROR use of undeclared lifetime name `'a` + //~| ERROR casting `&MyType<'_>` as `*const Cell>>` is invalid +} diff --git a/tests/ui/cast/ice-cast-type-with-error-124848.stderr b/tests/ui/cast/ice-cast-type-with-error-124848.stderr new file mode 100644 index 0000000000000..2d86bf76d1102 --- /dev/null +++ b/tests/ui/cast/ice-cast-type-with-error-124848.stderr @@ -0,0 +1,63 @@ +error[E0261]: use of undeclared lifetime name `'unpinned` + --> $DIR/ice-cast-type-with-error-124848.rs:7:32 + | +LL | struct MyType<'a>(Cell>>, Pin); + | - ^^^^^^^^^ undeclared lifetime + | | + | help: consider introducing lifetime `'unpinned` here: `'unpinned,` + +error[E0261]: use of undeclared lifetime name `'a` + --> $DIR/ice-cast-type-with-error-124848.rs:14:53 + | +LL | fn main() { + | - help: consider introducing lifetime `'a` here: `<'a>` +... +LL | let bad_addr = &unpinned as *const Cell>> as usize; + | ^^ undeclared lifetime + +error[E0261]: use of undeclared lifetime name `'a` + --> $DIR/ice-cast-type-with-error-124848.rs:14:67 + | +LL | fn main() { + | - help: consider introducing lifetime `'a` here: `<'a>` +... +LL | let bad_addr = &unpinned as *const Cell>> as usize; + | ^^ undeclared lifetime + +error[E0412]: cannot find type `Pin` in this scope + --> $DIR/ice-cast-type-with-error-124848.rs:7:60 + | +LL | struct MyType<'a>(Cell>>, Pin); + | ^^^ not found in this scope + | +help: consider importing this struct + | +LL + use std::pin::Pin; + | + +error[E0061]: this struct takes 2 arguments but 1 argument was supplied + --> $DIR/ice-cast-type-with-error-124848.rs:12:24 + | +LL | let mut unpinned = MyType(Cell::new(None)); + | ^^^^^^----------------- an argument is missing + | +note: tuple struct defined here + --> $DIR/ice-cast-type-with-error-124848.rs:7:8 + | +LL | struct MyType<'a>(Cell>>, Pin); + | ^^^^^^ +help: provide the argument + | +LL | let mut unpinned = MyType(Cell::new(None), /* value */); + | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ + +error[E0606]: casting `&MyType<'_>` as `*const Cell>>` is invalid + --> $DIR/ice-cast-type-with-error-124848.rs:14:20 + | +LL | let bad_addr = &unpinned as *const Cell>> as usize; + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ + +error: aborting due to 6 previous errors + +Some errors have detailed explanations: E0061, E0261, E0412, E0606. +For more information about an error, try `rustc --explain E0061`.