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| author | Fabian Wolff <fabian.wolff@alumni.ethz.ch> | 2021-07-27 23:40:32 +0200 |
|---|---|---|
| committer | Fabian Wolff <fabian.wolff@alumni.ethz.ch> | 2021-07-31 15:57:51 +0200 |
| commit | 4e76c3820fea97e06f08555d4eeee3de3be4eb5a (patch) | |
| tree | e27651b61975fc2f601d5aefa372c06d727bc53c /src/test | |
| parent | 7069a8c2b78c5d23205de1cabb4c2a65229dbd8f (diff) | |
| download | rust-4e76c3820fea97e06f08555d4eeee3de3be4eb5a.tar.gz rust-4e76c3820fea97e06f08555d4eeee3de3be4eb5a.zip | |
Fix ICE in `improper_ctypes_definitions` lint with all-ZST transparent types
Diffstat (limited to 'src/test')
| -rw-r--r-- | src/test/ui/repr/repr-transparent-issue-87496.rs | 12 | ||||
| -rw-r--r-- | src/test/ui/repr/repr-transparent-issue-87496.stderr | 16 |
2 files changed, 28 insertions, 0 deletions
diff --git a/src/test/ui/repr/repr-transparent-issue-87496.rs b/src/test/ui/repr/repr-transparent-issue-87496.rs new file mode 100644 index 00000000000..a4dd45c63f5 --- /dev/null +++ b/src/test/ui/repr/repr-transparent-issue-87496.rs @@ -0,0 +1,12 @@ +// Regression test for the ICE described in #87496. + +// check-pass + +#[repr(transparent)] +struct TransparentCustomZst(()); +extern "C" { + fn good17(p: TransparentCustomZst); + //~^ WARNING: `extern` block uses type `TransparentCustomZst`, which is not FFI-safe +} + +fn main() {} diff --git a/src/test/ui/repr/repr-transparent-issue-87496.stderr b/src/test/ui/repr/repr-transparent-issue-87496.stderr new file mode 100644 index 00000000000..c488755cc24 --- /dev/null +++ b/src/test/ui/repr/repr-transparent-issue-87496.stderr @@ -0,0 +1,16 @@ +warning: `extern` block uses type `TransparentCustomZst`, which is not FFI-safe + --> $DIR/repr-transparent-issue-87496.rs:8:18 + | +LL | fn good17(p: TransparentCustomZst); + | ^^^^^^^^^^^^^^^^^^^^ not FFI-safe + | + = note: `#[warn(improper_ctypes)]` on by default + = note: this struct contains only zero-sized fields +note: the type is defined here + --> $DIR/repr-transparent-issue-87496.rs:6:1 + | +LL | struct TransparentCustomZst(()); + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ + +warning: 1 warning emitted + |