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fixes issue #185

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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2015-08-06 11:04:37 +02:00
parent b8e6a0d0dc
commit e59ec5fefd
2 changed files with 28 additions and 6 deletions
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32
src/ast/ast.cpp
View file

@ -1016,6 +1016,28 @@ func_decl * basic_decl_plugin::mk_ite_decl(sort * s) {
return m_ite_decls[id];
}
sort* basic_decl_plugin::join(unsigned n, sort* const* srts) {
SASSERT(n > 0);
sort* s = srts[0];
while (n > 1) {
++srts;
--n;
s = join(s, *srts);
}
return s;
}
sort* basic_decl_plugin::join(unsigned n, expr* const* es) {
SASSERT(n > 0);
sort* s = m_manager->get_sort(*es);
while (n > 1) {
++es;
--n;
s = join(s, m_manager->get_sort(*es));
}
return s;
}
sort* basic_decl_plugin::join(sort* s1, sort* s2) {
if (s1 == s2) return s1;
if (s1->get_family_id() == m_manager->m_arith_family_id &&
@ -1045,8 +1067,8 @@ func_decl * basic_decl_plugin::mk_func_decl(decl_kind k, unsigned num_parameters
case OP_XOR: return m_xor_decl;
case OP_ITE: return arity == 3 ? mk_ite_decl(join(domain[1], domain[2])) : 0;
// eq and oeq must have at least two arguments, they can have more since they are chainable
case OP_EQ: return arity >= 2 ? mk_eq_decl_core("=", OP_EQ, join(domain[0],domain[1]), m_eq_decls) : 0;
case OP_OEQ: return arity >= 2 ? mk_eq_decl_core("~", OP_OEQ, join(domain[0],domain[1]), m_oeq_decls) : 0;
case OP_EQ: return arity >= 2 ? mk_eq_decl_core("=", OP_EQ, join(arity, domain), m_eq_decls) : 0;
case OP_OEQ: return arity >= 2 ? mk_eq_decl_core("~", OP_OEQ, join(arity, domain), m_oeq_decls) : 0;
case OP_DISTINCT: {
func_decl_info info(m_family_id, OP_DISTINCT);
info.set_pairwise();
@ -1088,10 +1110,8 @@ func_decl * basic_decl_plugin::mk_func_decl(decl_kind k, unsigned num_parameters
case OP_XOR: return m_xor_decl;
case OP_ITE: return num_args == 3 ? mk_ite_decl(join(m_manager->get_sort(args[1]), m_manager->get_sort(args[2]))): 0;
// eq and oeq must have at least two arguments, they can have more since they are chainable
case OP_EQ: return num_args >= 2 ? mk_eq_decl_core("=", OP_EQ, join(m_manager->get_sort(args[0]),
m_manager->get_sort(args[1])), m_eq_decls) : 0;
case OP_OEQ: return num_args >= 2 ? mk_eq_decl_core("~", OP_OEQ, join(m_manager->get_sort(args[0]),
m_manager->get_sort(args[1])), m_oeq_decls) : 0;
case OP_EQ: return num_args >= 2 ? mk_eq_decl_core("=", OP_EQ, join(num_args, args), m_eq_decls) : 0;
case OP_OEQ: return num_args >= 2 ? mk_eq_decl_core("~", OP_OEQ, join(num_args, args), m_oeq_decls) : 0;
case OP_DISTINCT:
return decl_plugin::mk_func_decl(k, num_parameters, parameters, num_args, args, range);
default:

2
src/ast/ast.h
View file

@ -1101,6 +1101,8 @@ protected:
func_decl * mk_eq_decl_core(char const * name, decl_kind k, sort * s, ptr_vector<func_decl> & cache);
func_decl * mk_ite_decl(sort * s);
sort* join(sort* s1, sort* s2);
sort* join(unsigned n, sort*const* srts);
sort* join(unsigned n, expr*const* es);
public:
basic_decl_plugin();