diff options
Diffstat (limited to 'compiler/rustc_attr_parsing/src/context.rs')
| -rw-r--r-- | compiler/rustc_attr_parsing/src/context.rs | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/compiler/rustc_attr_parsing/src/context.rs b/compiler/rustc_attr_parsing/src/context.rs index 2a01ee58493..bcd7b024a9e 100644 --- a/compiler/rustc_attr_parsing/src/context.rs +++ b/compiler/rustc_attr_parsing/src/context.rs @@ -165,6 +165,7 @@ mod private { #[allow(private_interfaces)] pub trait Stage: Sized + 'static + Sealed { type Id: Copy; + const SHOULD_EMIT_LINTS: bool; fn parsers() -> &'static group_type!(Self); @@ -175,6 +176,7 @@ pub trait Stage: Sized + 'static + Sealed { #[allow(private_interfaces)] impl Stage for Early { type Id = NodeId; + const SHOULD_EMIT_LINTS: bool = false; fn parsers() -> &'static group_type!(Self) { &early::ATTRIBUTE_PARSERS @@ -188,6 +190,7 @@ impl Stage for Early { #[allow(private_interfaces)] impl Stage for Late { type Id = HirId; + const SHOULD_EMIT_LINTS: bool = true; fn parsers() -> &'static group_type!(Self) { &late::ATTRIBUTE_PARSERS @@ -228,6 +231,9 @@ impl<'f, 'sess: 'f, S: Stage> SharedContext<'f, 'sess, S> { /// must be delayed until after HIR is built. This method will take care of the details of /// that. pub(crate) fn emit_lint(&mut self, lint: AttributeLintKind, span: Span) { + if !S::SHOULD_EMIT_LINTS { + return; + } let id = self.target_id; (self.emit_lint)(AttributeLint { id, span, kind: lint }); } @@ -409,6 +415,10 @@ impl<'f, 'sess: 'f, S: Stage> AcceptContext<'f, 'sess, S> { }, }) } + + pub(crate) fn warn_empty_attribute(&mut self, span: Span) { + self.emit_lint(AttributeLintKind::EmptyAttribute { first_span: span }, span); + } } impl<'f, 'sess, S: Stage> Deref for AcceptContext<'f, 'sess, S> { |