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https://github.com/Z3Prover/z3
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107 lines
2.6 KiB
C++
107 lines
2.6 KiB
C++
/*++
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Copyright (c) 2011 Microsoft Corporation
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Module Name:
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model_core.cpp
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Abstract:
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Base class for models.
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Author:
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Leonardo de Moura (leonardo) 2011-04-30.
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Revision History:
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--*/
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#include "model/model_core.h"
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model_core::~model_core() {
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for (auto & kv : m_interp) {
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m_manager.dec_ref(kv.m_key);
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m_manager.dec_ref(kv.m_value);
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}
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for (auto & kv : m_finterp) {
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m_manager.dec_ref(kv.m_key);
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dealloc(kv.m_value);
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}
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}
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bool model_core::eval(func_decl* f, expr_ref & r) const {
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if (f->get_arity() == 0) {
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r = get_const_interp(f);
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return r != 0;
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}
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else {
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func_interp * fi = get_func_interp(f);
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if (fi != 0) {
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r = fi->get_interp();
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return r != 0;
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}
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return false;
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}
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}
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void model_core::register_decl(func_decl * d, expr * v) {
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SASSERT(d->get_arity() == 0);
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decl2expr::obj_map_entry * entry = m_interp.insert_if_not_there2(d, 0);
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if (entry->get_data().m_value == 0) {
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// new entry
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m_decls.push_back(d);
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m_const_decls.push_back(d);
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m_manager.inc_ref(d);
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m_manager.inc_ref(v);
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entry->get_data().m_value = v;
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}
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else {
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// replacing entry
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m_manager.inc_ref(v);
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m_manager.dec_ref(entry->get_data().m_value);
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entry->get_data().m_value = v;
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}
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}
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void model_core::register_decl(func_decl * d, func_interp * fi) {
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SASSERT(d->get_arity() > 0);
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SASSERT(&fi->m() == &m_manager);
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decl2finterp::obj_map_entry * entry = m_finterp.insert_if_not_there2(d, 0);
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if (entry->get_data().m_value == 0) {
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// new entry
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m_decls.push_back(d);
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m_func_decls.push_back(d);
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m_manager.inc_ref(d);
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entry->get_data().m_value = fi;
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}
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else {
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// replacing entry
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if (fi != entry->get_data().m_value)
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dealloc(entry->get_data().m_value);
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entry->get_data().m_value = fi;
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}
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}
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void model_core::unregister_decl(func_decl * d) {
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decl2expr::obj_map_entry * ec = m_interp.find_core(d);
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if (ec && ec->get_data().m_value != 0) {
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auto k = ec->get_data().m_key;
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auto v = ec->get_data().m_value;
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m_interp.remove(d);
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m_const_decls.erase(d);
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m_manager.dec_ref(k);
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m_manager.dec_ref(v);
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return;
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}
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decl2finterp::obj_map_entry * ef = m_finterp.find_core(d);
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if (ef && ef->get_data().m_value != 0) {
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auto k = ef->get_data().m_key;
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auto v = ef->get_data().m_value;
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m_finterp.remove(d);
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m_func_decls.erase(d);
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m_manager.dec_ref(k);
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dealloc(v);
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}
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}
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