diff options
| -rw-r--r-- | gcc/rust/checks/errors/rust-const-checker.cc | 8 | ||||
| -rw-r--r-- | gcc/testsuite/rust/compile/const10.rs | 3 |
2 files changed, 9 insertions, 2 deletions
diff --git a/gcc/rust/checks/errors/rust-const-checker.cc b/gcc/rust/checks/errors/rust-const-checker.cc index 3de27ec..5f20437 100644 --- a/gcc/rust/checks/errors/rust-const-checker.cc +++ b/gcc/rust/checks/errors/rust-const-checker.cc @@ -898,8 +898,12 @@ ConstChecker::visit (RawPointerType &) {} void -ConstChecker::visit (ReferenceType &) -{} +ConstChecker::visit (ReferenceType &type) +{ + if (const_context.is_in_context () && type.is_mut ()) + rust_error_at (type.get_locus (), + "mutable references are not allowed in constant functions"); +} void ConstChecker::visit (ArrayType &type) diff --git a/gcc/testsuite/rust/compile/const10.rs b/gcc/testsuite/rust/compile/const10.rs new file mode 100644 index 0000000..9ab8274 --- /dev/null +++ b/gcc/testsuite/rust/compile/const10.rs @@ -0,0 +1,3 @@ +const fn foo (a: &mut i32) { // { dg-error "mutable references are not allowed in constant functions" } + *a = 1; +} |