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rustc_intrinsic: support functions without body; they are implicitly marked as must-be-overridden

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This commit is contained in:
Ralf Jung 2025-01-04 11:41:51 +01:00
parent be65012aa3
commit 3cd3649c6c
19 changed files with 118 additions and 68 deletions
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4
compiler/rustc_ast_passes/src/ast_validation.rs
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@ -920,7 +920,9 @@ impl<'a> Visitor<'a> for AstValidator<'a> {
ItemKind::Fn(box Fn { defaultness, sig, generics, body }) => {
self.check_defaultness(item.span, *defaultness);
if body.is_none() {
let is_intrinsic =
item.attrs.iter().any(|a| a.name_or_empty() == sym::rustc_intrinsic);
if body.is_none() && !is_intrinsic {
self.dcx().emit_err(errors::FnWithoutBody {
span: item.span,
replace_span: self.ending_semi_or_hi(item.span),