diff options
Diffstat (limited to 'compiler/rustc_builtin_macros/src/test.rs')
| -rw-r--r-- | compiler/rustc_builtin_macros/src/test.rs | 62 |
1 files changed, 40 insertions, 22 deletions
diff --git a/compiler/rustc_builtin_macros/src/test.rs b/compiler/rustc_builtin_macros/src/test.rs index a76ed4ee6ce..79d8be2484b 100644 --- a/compiler/rustc_builtin_macros/src/test.rs +++ b/compiler/rustc_builtin_macros/src/test.rs @@ -118,34 +118,22 @@ pub fn expand_test_or_bench( } } other => { - cx.struct_span_err( - other.span(), - "`#[test]` attribute is only allowed on non associated functions", - ) - .emit(); + not_testable_error(cx, attr_sp, None); return vec![other]; } }; - // Note: non-associated fn items are already handled by `expand_test_or_bench` let ast::ItemKind::Fn(fn_) = &item.kind else { - let diag = &cx.sess.parse_sess.span_diagnostic; - let msg = "the `#[test]` attribute may only be used on a non-associated function"; - let mut err = match item.kind { - // These were a warning before #92959 and need to continue being that to avoid breaking - // stable user code (#94508). - ast::ItemKind::MacCall(_) => diag.struct_span_warn(attr_sp, msg), - // `.forget_guarantee()` needed to get these two arms to match types. Because of how - // locally close the `.emit()` call is I'm comfortable with it, but if it can be - // reworked in the future to not need it, it'd be nice. - _ => diag.struct_span_err(attr_sp, msg).forget_guarantee(), + not_testable_error(cx, attr_sp, Some(&item)); + return if is_stmt { + vec![Annotatable::Stmt(P(ast::Stmt { + id: ast::DUMMY_NODE_ID, + span: item.span, + kind: ast::StmtKind::Item(item), + }))] + } else { + vec![Annotatable::Item(item)] }; - err.span_label(attr_sp, "the `#[test]` macro causes a function to be run on a test and has no effect on non-functions") - .span_label(item.span, format!("expected a non-associated function, found {} {}", item.kind.article(), item.kind.descr())) - .span_suggestion(attr_sp, "replace with conditional compilation to make the item only exist when tests are being run", "#[cfg(test)]", Applicability::MaybeIncorrect) - .emit(); - - return vec![Annotatable::Item(item)]; }; // has_*_signature will report any errors in the type so compilation @@ -398,6 +386,36 @@ pub fn expand_test_or_bench( } } +fn not_testable_error(cx: &ExtCtxt<'_>, attr_sp: Span, item: Option<&ast::Item>) { + let diag = &cx.sess.parse_sess.span_diagnostic; + let msg = "the `#[test]` attribute may only be used on a non-associated function"; + let mut err = match item.map(|i| &i.kind) { + // These were a warning before #92959 and need to continue being that to avoid breaking + // stable user code (#94508). + Some(ast::ItemKind::MacCall(_)) => diag.struct_span_warn(attr_sp, msg), + // `.forget_guarantee()` needed to get these two arms to match types. Because of how + // locally close the `.emit()` call is I'm comfortable with it, but if it can be + // reworked in the future to not need it, it'd be nice. + _ => diag.struct_span_err(attr_sp, msg).forget_guarantee(), + }; + if let Some(item) = item { + err.span_label( + item.span, + format!( + "expected a non-associated function, found {} {}", + item.kind.article(), + item.kind.descr() + ), + ); + } + err.span_label(attr_sp, "the `#[test]` macro causes a function to be run as a test and has no effect on non-functions") + .span_suggestion(attr_sp, + "replace with conditional compilation to make the item only exist when tests are being run", + "#[cfg(test)]", + Applicability::MaybeIncorrect) + .emit(); +} + fn get_location_info(cx: &ExtCtxt<'_>, item: &ast::Item) -> (Symbol, usize, usize, usize, usize) { let span = item.ident.span; let (source_file, lo_line, lo_col, hi_line, hi_col) = |
