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fix(library/unifier): catch type error when checking is_def_eq of type incorrect expressions

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This commit is contained in:
Leonardo de Moura 2014-09-09 08:43:16 -07:00
parent fd85d4702e
commit a5698a55ec
1 changed files with 10 additions and 5 deletions
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15
src/library/unifier.cpp
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@ -485,13 +485,18 @@ struct unifier_fn {
\remark If relax is true then opaque definitions from the main module are treated as transparent.
*/
bool is_def_eq(expr const & t1, expr const & t2, justification const & j, bool relax) {
auto dcs = m_tc[relax]->is_def_eq(t1, t2, j);
if (!dcs.first) {
// std::cout << "conflict: " << t1 << " =?= " << t2 << "\n";
try {
auto dcs = m_tc[relax]->is_def_eq(t1, t2, j);
if (!dcs.first) {
// std::cout << "conflict: " << t1 << " =?= " << t2 << "\n";
set_conflict(j);
return false;
} else {
return process_constraints(dcs.second);
}
} catch (exception&) {
set_conflict(j);
return false;
} else {
return process_constraints(dcs.second);
}
}