diff options
Diffstat (limited to 'compiler/rustc_parse/src/validate_attr.rs')
| -rw-r--r-- | compiler/rustc_parse/src/validate_attr.rs | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/compiler/rustc_parse/src/validate_attr.rs b/compiler/rustc_parse/src/validate_attr.rs index 47477898b24..8e7f8bfe0f5 100644 --- a/compiler/rustc_parse/src/validate_attr.rs +++ b/compiler/rustc_parse/src/validate_attr.rs @@ -49,10 +49,12 @@ pub fn parse_meta<'a>(sess: &'a ParseSess, attr: &Attribute) -> PResult<'a, Meta MetaItemKind::List(nmis) } MacArgs::Eq(_, MacArgsEq::Ast(expr)) => { - if let ast::ExprKind::Lit(lit) = &expr.kind { - if !lit.kind.is_unsuffixed() { + if let ast::ExprKind::Lit(token_lit) = expr.kind + && let Ok(lit) = ast::Lit::from_token_lit(token_lit, expr.span) + { + if token_lit.suffix.is_some() { let mut err = sess.span_diagnostic.struct_span_err( - lit.span, + expr.span, "suffixed literals are not allowed in attributes", ); err.help( @@ -61,7 +63,7 @@ pub fn parse_meta<'a>(sess: &'a ParseSess, attr: &Attribute) -> PResult<'a, Meta ); return Err(err); } else { - MetaItemKind::NameValue(lit.clone()) + MetaItemKind::NameValue(lit) } } else { // The non-error case can happen with e.g. `#[foo = 1+1]`. The error case can |