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feat(frontends/lean/parse_table): avoid duplicates in the parse table

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Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
This commit is contained in:
Leonardo de Moura 2014-06-26 09:03:45 -07:00
parent ab2bbaef3f
commit 0480dab986
1 changed files with 1 additions and 1 deletions
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2
src/frontends/lean/parse_table.cpp
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@ -234,7 +234,7 @@ parse_table parse_table::add_core(unsigned num, transition const * ts, expr cons
if (!overload)
r.m_ptr->m_accept = list<expr>(a);
else
r.m_ptr->m_accept = list<expr>(a, r.m_ptr->m_accept);
r.m_ptr->m_accept = list<expr>(a, remove(r.m_ptr->m_accept, a));
} else {
auto * it = r.m_ptr->m_children.find(ts->get_token());
parse_table new_child;