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move constraint handler functionality to self-contained / separate classes.

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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2021-04-15 13:08:25 -07:00
parent 0d78a10630
commit 5163492d5b
5 changed files with 134 additions and 117 deletions
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11
src/math/polysat/constraint.h
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@ -26,6 +26,8 @@ namespace polysat {
class ule_constraint;
class constraint {
friend class eq_constraint;
friend class ule_constraint;
unsigned m_level;
ckind_t m_kind;
p_dependency_ref m_dep;
@ -39,8 +41,9 @@ namespace polysat {
bool is_sle() const { return m_kind == ckind_t::sle_t; }
ckind_t kind() const { return m_kind; }
virtual std::ostream& display(std::ostream& out) const = 0;
eq_constraint& to_eq() { return *dynamic_cast<eq_constraint*>(this); }
eq_constraint const& to_eq() { return *dynamic_cast<eq_constraint const*>(this); }
virtual bool propagate(solver& s, pvar v) = 0;
eq_constraint& to_eq();
eq_constraint const& to_eq() const;
p_dependency* dep() const { return m_dep; }
unsigned_vector& vars() { return m_vars; }
unsigned level() const { return m_level; }
@ -49,12 +52,14 @@ namespace polysat {
class eq_constraint : public constraint {
pdd m_poly;
public:
eq_constraint(unsigned lvl, pdd const& p, pdd const& q, p_dependency_ref& dep,):
eq_constraint(unsigned lvl, pdd const& p, p_dependency_ref& dep):
constraint(lvl, dep, ckind_t::eq_t), m_poly(p) {
m_vars.append(p.free_vars());
}
pdd const & p() const { return m_poly; }
std::ostream& display(std::ostream& out) const override;
bool propagate(solver& s, pvar v) override;
};
inline std::ostream& operator<<(std::ostream& out, constraint const& c) { return c.display(out); }