From 045faa8c5c27e0506b1dfdd3cc06840f0a059513 Mon Sep 17 00:00:00 2001 From: Pavel Grigorenko Date: Sun, 15 Jun 2025 16:50:37 +0300 Subject: Port `#[may_dangle]` to the new attribute system --- .../rustc_attr_parsing/src/attributes/semantics.rs | 19 +++++++++++++++++++ 1 file changed, 19 insertions(+) create mode 100644 compiler/rustc_attr_parsing/src/attributes/semantics.rs (limited to 'compiler/rustc_attr_parsing/src/attributes/semantics.rs') diff --git a/compiler/rustc_attr_parsing/src/attributes/semantics.rs b/compiler/rustc_attr_parsing/src/attributes/semantics.rs new file mode 100644 index 00000000000..071574a5612 --- /dev/null +++ b/compiler/rustc_attr_parsing/src/attributes/semantics.rs @@ -0,0 +1,19 @@ +use rustc_attr_data_structures::AttributeKind; +use rustc_feature::{AttributeTemplate, template}; +use rustc_span::{Symbol, sym}; + +use crate::attributes::{AttributeOrder, OnDuplicate, SingleAttributeParser}; +use crate::context::{AcceptContext, Stage}; +use crate::parser::ArgParser; + +pub(crate) struct MayDangleParser; +impl SingleAttributeParser for MayDangleParser { + const PATH: &[Symbol] = &[sym::may_dangle]; + const ATTRIBUTE_ORDER: AttributeOrder = AttributeOrder::KeepFirst; + const ON_DUPLICATE: OnDuplicate = OnDuplicate::Warn; + const TEMPLATE: AttributeTemplate = template!(Word); + + fn convert(cx: &mut AcceptContext<'_, '_, S>, _args: &ArgParser<'_>) -> Option { + Some(AttributeKind::MayDangle(cx.attr_span)) + } +} -- cgit 1.4.1-3-g733a5