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rustc: Implement parsing and typechecking for "once fn"

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This commit is contained in:
Patrick Walton
2012-11-02 13:33:51 -07:00
parent 9aadfc3f4b
commit be93b29d30
22 changed files with 266 additions and 61 deletions
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9
src/libsyntax/fold.rs
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@@ -524,10 +524,11 @@ fn noop_fold_ty(t: ty_, fld: ast_fold) -> ty_ {
ty_ptr(mt) => ty_ptr(fold_mt(mt, fld)),
ty_rptr(region, mt) => ty_rptr(region, fold_mt(mt, fld)),
ty_rec(fields) => ty_rec(vec::map(fields, |f| fold_field(*f, fld))),
ty_fn(proto, purity, bounds, decl) =>
ty_fn(proto, purity,
@vec::map(*bounds,
|x| fold_ty_param_bound(*x, fld)),
ty_fn(proto, purity, onceness, bounds, decl) =>
ty_fn(proto,
purity,
onceness,
@vec::map(*bounds, |x| fold_ty_param_bound(*x, fld)),
fold_fn_decl(decl, fld)),
ty_tup(tys) => ty_tup(vec::map(tys, |ty| fld.fold_ty(*ty))),
ty_path(path, id) => ty_path(fld.fold_path(path), fld.new_id(id)),