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| author | Oliver 'ker' Schneider <git-spam-no-reply9815368754983@oli-obk.de> | 2016-05-08 10:52:17 +0200 |
|---|---|---|
| committer | Oliver 'ker' Schneider <git-spam-no-reply9815368754983@oli-obk.de> | 2016-05-08 10:52:17 +0200 |
| commit | 7461e450b93cea478ba3c9e1d1cac22ff1a410de (patch) | |
| tree | 183e458e1d690744ef8775b26d1f7fff5e645b57 | |
| parent | 68d399d7e3fc96f08744fc3fb057e17b8b365308 (diff) | |
| download | rust-7461e450b93cea478ba3c9e1d1cac22ff1a410de.tar.gz rust-7461e450b93cea478ba3c9e1d1cac22ff1a410de.zip | |
casting `b"text"` to `* const u8` doesn't work in const_eval
| -rw-r--r-- | src/librustc_const_eval/eval.rs | 6 | ||||
| -rw-r--r-- | src/test/run-pass/const-err.rs | 1 |
2 files changed, 7 insertions, 0 deletions
diff --git a/src/librustc_const_eval/eval.rs b/src/librustc_const_eval/eval.rs index 06be29b9049..f623ab54ea6 100644 --- a/src/librustc_const_eval/eval.rs +++ b/src/librustc_const_eval/eval.rs @@ -1117,6 +1117,12 @@ fn cast_const<'tcx>(tcx: &TyCtxt<'tcx>, val: ConstVal, ty: ty::Ty) -> CastResult Float(f) => cast_const_float(tcx, f, ty), Char(c) => cast_const_int(tcx, Infer(c as u64), ty), Function(_) => Err(UnimplementedConstVal("casting fn pointers")), + ByteStr(_) => match ty.sty { + ty::TyRawPtr(_) => { + Err(ErrKind::UnimplementedConstVal("casting a bytestr to a raw ptr")) + }, + _ => Err(CannotCast), + }, _ => Err(CannotCast), } } diff --git a/src/test/run-pass/const-err.rs b/src/test/run-pass/const-err.rs index 30641c1cb87..9f4ae1ad927 100644 --- a/src/test/run-pass/const-err.rs +++ b/src/test/run-pass/const-err.rs @@ -12,6 +12,7 @@ #![deny(const_err)] +const X: *const u8 = b"" as _; fn main() { let _ = ((-1 as i8) << 8 - 1) as f32; |