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fix(library/unifier): memory violation, and missing set_conflict

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Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
This commit is contained in:
Leonardo de Moura 2014-06-22 14:09:06 -07:00
parent 25cb1bf6a1
commit 238a0dbfba
1 changed files with 4 additions and 2 deletions
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6
src/library/unifier.cpp
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@ -221,7 +221,7 @@ struct unifier_fn {
cnstr_idx_set s;
name_to_cnstrs & map = MVar ? m_mvar_occs : m_mlvl_occs;
auto it = map.find(m);
if (!it)
if (it)
s = *it;
if (!s.contains(cidx)) {
s.insert(cidx);
@ -472,8 +472,10 @@ struct unifier_fn {
lean_assert(!is_choice_cnstr(c));
lazy_list<constraints> alts = m_plugin(c, m_ngen.mk_child());
auto r = alts.pull();
if (!r)
if (!r) {
set_conflict(c.get_justification());
return false;
}
// TODO(Leo): create backtracking point
return true;
}