z3-z3-4.13.0.src.smt.smt_value_sort.cpp Maven / Gradle / Ivy
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/*++
Copyright (c) 2012 Microsoft Corporation
Module Name:
smt_value_sort.cpp
Abstract:
Determine if elements of a given sort can be values.
Author:
Nikolaj Bjorner (nbjorner) 2012-11-25
Revision History:
--*/
#include "smt/smt_value_sort.h"
#include "ast/bv_decl_plugin.h"
#include "ast/arith_decl_plugin.h"
#include "ast/datatype_decl_plugin.h"
namespace smt {
bool is_value_sort(ast_manager& m, sort* s) {
arith_util arith(m);
datatype_util data(m);
bv_util bv(m);
ptr_vector sorts;
ast_mark mark;
sorts.push_back(s);
while (!sorts.empty()) {
s = sorts.back();
sorts.pop_back();
if (mark.is_marked(s)) {
continue;
}
mark.mark(s, true);
if (arith.is_int_real(s)) {
// simple
}
else if (m.is_bool(s)) {
// simple
}
else if (bv.is_bv_sort(s)) {
// simple
}
else if (data.is_datatype(s)) {
ptr_vector const& cs = *data.get_datatype_constructors(s);
for (unsigned i = 0; i < cs.size(); ++i) {
func_decl* f = cs[i];
for (unsigned j = 0; j < f->get_arity(); ++j) {
sorts.push_back(f->get_domain(j));
}
}
}
else {
return false;
}
}
return true;
}
bool is_value_sort(ast_manager& m, expr* e) {
return is_value_sort(m, e->get_sort());
}
}