diff options
Diffstat (limited to 'src/libsyntax')
| -rw-r--r-- | src/libsyntax/ext/expand.rs | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/src/libsyntax/ext/expand.rs b/src/libsyntax/ext/expand.rs index f82796b480a..a51a79b6d58 100644 --- a/src/libsyntax/ext/expand.rs +++ b/src/libsyntax/ext/expand.rs @@ -536,13 +536,16 @@ fn expand_non_macro_stmt(s: &Stmt, fld: &mut MacroExpander) } => { // take it apart: let Local { - ty: _, + ty: ty, pat: pat, init: init, id: id, span: span, source: source, } = **local; + // expand the ty since TyFixedLengthVec contains an Expr + // and thus may have a macro use + let expanded_ty = fld.fold_ty(ty); // expand the pat (it might contain macro uses): let expanded_pat = fld.fold_pat(pat); // find the PatIdents in the pattern: @@ -566,7 +569,7 @@ fn expand_non_macro_stmt(s: &Stmt, fld: &mut MacroExpander) let new_init_opt = init.map(|e| fld.fold_expr(e)); let rewritten_local = box(GC) Local { - ty: local.ty, + ty: expanded_ty, pat: rewritten_pat, init: new_init_opt, id: id, |