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tune and fix doc

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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2014-09-24 09:20:21 -07:00
parent 16f80fce92
commit 918d52f1b0
13 changed files with 188 additions and 103 deletions
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62
src/muz/base/dl_rule.h
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@ -31,6 +31,7 @@ Revision History:
#include"hnf.h"
#include"qe_lite.h"
#include"var_subst.h"
#include"datatype_decl_plugin.h"
namespace datalog {
@ -43,6 +44,57 @@ namespace datalog {
typedef obj_ref<rule, rule_manager> rule_ref;
typedef ref_vector<rule, rule_manager> rule_ref_vector;
typedef ptr_vector<rule> rule_vector;
struct quantifier_finder_proc {
bool m_exist;
bool m_univ;
quantifier_finder_proc() : m_exist(false), m_univ(false) {}
void operator()(var * n) { }
void operator()(quantifier * n) {
if (n->is_forall()) {
m_univ = true;
}
else {
SASSERT(n->is_exists());
m_exist = true;
}
}
void operator()(app * n) { }
void reset() { m_exist = m_univ = false; }
};
struct uninterpreted_function_finder_proc {
ast_manager& m;
datatype_util m_dt;
bool m_found;
func_decl* m_func;
uninterpreted_function_finder_proc(ast_manager& m):
m(m), m_dt(m), m_found(false), m_func(0) {}
void reset() { m_found = false; m_func = 0; }
void operator()(var * n) { }
void operator()(quantifier * n) { }
void operator()(app * n) {
if (is_uninterp(n)) {
m_found = true;
m_func = n->get_decl();
}
else if (m_dt.is_accessor(n)) {
sort* s = m.get_sort(n->get_arg(0));
SASSERT(m_dt.is_datatype(s));
if (m_dt.get_datatype_constructors(s)->size() > 1) {
m_found = true;
m_func = n->get_decl();
}
}
}
bool found(func_decl*& f) const { f = m_func; return m_found; }
};
/**
\brief Manager for the \c rule class
@ -75,6 +127,9 @@ namespace datalog {
qe_lite m_qe;
remove_label_cfg m_cfg;
rewriter_tpl<remove_label_cfg> m_rwr;
mutable uninterpreted_function_finder_proc m_ufproc;
mutable quantifier_finder_proc m_qproc;
mutable expr_sparse_mark m_visited;
// only the context can create a rule_manager
@ -220,6 +275,10 @@ namespace datalog {
std::ostream& display_smt2(rule const& r, std::ostream & out);
bool has_uninterpreted_non_predicates(rule const& r, func_decl*& f) const;
void has_quantifiers(rule const& r, bool& existential, bool& universal) const;
bool has_quantifiers(rule const& r) const;
};
class rule : public accounted_object {
@ -295,9 +354,6 @@ namespace datalog {
*/
bool is_in_tail(const func_decl * p, bool only_positive=false) const;
bool has_uninterpreted_non_predicates(ast_manager& m, func_decl*& f) const;
void has_quantifiers(bool& existential, bool& universal) const;
bool has_quantifiers() const;
bool has_negation() const;
/**