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handle fail inside a for loop

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This commit is contained in:
Tim Chevalier 2011-07-04 22:48:08 -07:00
parent 6d0cb70fc3
commit ded9008e38
1 changed files with 4 additions and 1 deletions
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5
src/comp/middle/trans.rs
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@ -4312,7 +4312,10 @@ fn trans_for(&@block_ctxt cx, &@ast::local local, &@ast::expr seq,
auto bcx = copy_val(local_res.bcx, INIT, local_res.val, curr, t).bcx;
scope_cx.cleanups += [clean(bind drop_slot(_, local_res.val, t))];
bcx = trans_block(bcx, body, return).bcx;
bcx.build.Br(next_cx.llbb);
if (!bcx.build.is_terminated()) {
bcx.build.Br(next_cx.llbb);
// otherwise, this code is unreachable
}
ret rslt(next_cx, C_nil());
}
auto next_cx = new_sub_block_ctxt(cx, "next");