bjoernager/rust
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expand: Treat more macro calls as statement macro calls

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This commit is contained in:
Vadim Petrochenkov 2021-08-26 17:18:03 +03:00
parent b27ccbc7e1
commit 9940758416
5 changed files with 107 additions and 54 deletions
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12
compiler/rustc_ast/src/mut_visit.rs
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@ -1380,7 +1380,17 @@ pub fn noop_flat_map_stmt<T: MutVisitor>(
) -> SmallVec<[Stmt; 1]> {
vis.visit_id(&mut id);
vis.visit_span(&mut span);
noop_flat_map_stmt_kind(kind, vis).into_iter().map(|kind| Stmt { id, kind, span }).collect()
let stmts: SmallVec<_> = noop_flat_map_stmt_kind(kind, vis)
.into_iter()
.map(|kind| Stmt { id, kind, span })
.collect();
if stmts.len() > 1 {
panic!(
"cloning statement `NodeId`s is prohibited by default, \
the visitor should implement custom statement visiting"
);
}
stmts
}
pub fn noop_flat_map_stmt_kind<T: MutVisitor>(