diff options
Diffstat (limited to 'compiler')
| -rw-r--r-- | compiler/rustc_passes/src/check_attr.rs | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/compiler/rustc_passes/src/check_attr.rs b/compiler/rustc_passes/src/check_attr.rs index c45326e1e6e..a9444972130 100644 --- a/compiler/rustc_passes/src/check_attr.rs +++ b/compiler/rustc_passes/src/check_attr.rs @@ -80,6 +80,7 @@ impl CheckAttrVisitor<'_> { self.check_rustc_must_implement_one_of(attr, span, target) } sym::target_feature => self.check_target_feature(hir_id, attr, span, target), + sym::thread_local => self.check_thread_local(attr, span, target), sym::track_caller => { self.check_track_caller(hir_id, attr.span, attrs, span, target) } @@ -523,6 +524,21 @@ impl CheckAttrVisitor<'_> { } } + /// Checks if the `#[thread_local]` attribute on `item` is valid. Returns `true` if valid. + fn check_thread_local(&self, attr: &Attribute, span: Span, target: Target) -> bool { + match target { + Target::ForeignStatic | Target::Static => true, + _ => { + self.tcx + .sess + .struct_span_err(attr.span, "attribute should be applied to a static") + .span_label(span, "not a static") + .emit(); + false + } + } + } + fn doc_attr_str_error(&self, meta: &NestedMetaItem, attr_name: &str) { self.tcx .sess |