rust-lang/rust
1
0
Fork 0
Code Issues Pull Requests Actions 1 Packages Projects Releases Wiki Activity

introduce duplicate attribute diagnostic logic

Browse Source
This commit is contained in:
Jana Dönszelmann
2025-06-10 13:00:09 +02:00
parent fe5c95d4ae
commit 28bf61b9b3
4 changed files with 112 additions and 17 deletions
Download Patch File Download Diff File Expand all files Collapse all files

5
compiler/rustc_attr_parsing/src/attributes/stability.rs
View File

@@ -8,7 +8,7 @@ use rustc_errors::ErrorGuaranteed;
use rustc_span::{Span, Symbol, sym};
use super::util::parse_version;
use super::{AcceptMapping, AttributeParser, SingleAttributeParser};
use super::{AcceptMapping, AttributeDuplicates, AttributeParser, SingleAttributeParser};
use crate::context::{AcceptContext, FinalizeContext};
use crate::parser::{ArgParser, MetaItemParser};
use crate::session_diagnostics::{self, UnsupportedLiteralReason};
@@ -118,9 +118,10 @@ pub(crate) struct ConstStabilityIndirectParser;
// FIXME(jdonszelmann): single word attribute group when we have these
impl SingleAttributeParser for ConstStabilityIndirectParser {
const PATH: &'static [Symbol] = &[sym::rustc_const_stable_indirect];
const ON_DUPLICATE_STRATEGY: AttributeDuplicates = AttributeDuplicates::ErrorFollowing;
// ignore
fn on_duplicate(_cx: &AcceptContext<'_>, _first_span: Span) {}
fn on_duplicate(_cx: &AcceptContext<'_>, _used: Span, _unused: Span) {}
fn convert(_cx: &AcceptContext<'_>, _args: &ArgParser<'_>) -> Option<AttributeKind> {
Some(AttributeKind::ConstStabilityIndirect)