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enable nested ADT and sequences

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add API to define forward reference to recursively defined datatype.
The forward reference should be used only when passed to constructor declarations that are used in a datatype definition (Z3_mk_datatypes). The call to Z3_mk_datatypes ensures that the forward reference can be resolved with respect to constructors.
This commit is contained in:
Nikolaj Bjorner 2022-04-27 09:58:38 +01:00
parent 8e2f09b517
commit 81d97a81af
10 changed files with 232 additions and 92 deletions
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16
src/cmd_context/pdecl.cpp
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@ -493,18 +493,16 @@ void pconstructor_decl::finalize(pdecl_manager & m) {
}
bool pconstructor_decl::has_missing_refs(symbol & missing) const {
for (paccessor_decl* a : m_accessors) {
for (paccessor_decl* a : m_accessors)
if (a->has_missing_refs(missing))
return true;
}
return false;
}
bool pconstructor_decl::fix_missing_refs(dictionary<int> const & symbol2idx, symbol & missing) {
for (paccessor_decl* a : m_accessors) {
for (paccessor_decl* a : m_accessors)
if (!a->fix_missing_refs(symbol2idx, missing))
return false;
}
return true;
}
@ -561,18 +559,16 @@ bool pdatatype_decl::has_duplicate_accessors(symbol & duplicated) const {
bool pdatatype_decl::fix_missing_refs(dictionary<int> const & symbol2idx, symbol & missing) {
for (auto c : m_constructors) {
for (auto c : m_constructors)
if (!c->fix_missing_refs(symbol2idx, missing))
return false;
}
return true;
}
datatype_decl * pdatatype_decl::instantiate_decl(pdecl_manager & m, unsigned n, sort * const * s) {
ptr_buffer<constructor_decl> cs;
for (auto c : m_constructors) {
for (auto c : m_constructors)
cs.push_back(c->instantiate_decl(m, n, s));
}
datatype_util util(m.m());
return mk_datatype_decl(util, m_name, m_num_params, s, cs.size(), cs.data());
}
@ -647,10 +643,8 @@ bool pdatatype_decl::commit(pdecl_manager& m) {
sort_ref_vector sorts(m.m());
bool is_ok = m.get_dt_plugin()->mk_datatypes(1, &d_ptr, m_num_params, ps.data(), sorts);
m.notify_mk_datatype(m_name);
if (is_ok && m_num_params == 0) {
if (is_ok && m_num_params == 0)
m.notify_new_dt(sorts.get(0), this);
}
return is_ok;
}