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fix #5297

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This commit is contained in:
Nikolaj Bjorner 2021-05-23 13:42:15 -07:00
parent 8919fa4970
commit 2ebab021f2
5 changed files with 41 additions and 15 deletions
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11
src/ast/datatype_decl_plugin.cpp
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@ -1082,6 +1082,14 @@ namespace datatype {
return r;
}
bool util::is_recursive_array(sort* a) {
array_util autil(m);
if (!autil.is_array(a))
return false;
a = autil.get_array_range_rec(a);
return is_datatype(a) && is_recursive(a);
}
bool util::is_enum_sort(sort* s) {
if (!is_datatype(s)) {
return false;
@ -1243,6 +1251,9 @@ namespace datatype {
defined together in the same mutually recursive definition.
*/
bool util::are_siblings(sort * s1, sort * s2) {
array_util autil(m);
s1 = autil.get_array_range_rec(s1);
s2 = autil.get_array_range_rec(s2);
if (!is_datatype(s1) || !is_datatype(s2)) {
return s1 == s2;
}

1
src/ast/datatype_decl_plugin.h
View file

@ -330,6 +330,7 @@ namespace datatype {
bool is_datatype(sort const* s) const { return is_sort_of(s, fid(), DATATYPE_SORT); }
bool is_enum_sort(sort* s);
bool is_recursive(sort * ty);
bool is_recursive_array(sort * ty);
bool is_constructor(func_decl * f) const { return is_decl_of(f, fid(), OP_DT_CONSTRUCTOR); }
bool is_recognizer(func_decl * f) const { return is_recognizer0(f) || is_is(f); }
bool is_recognizer0(func_decl * f) const { return is_decl_of(f, fid(), OP_DT_RECOGNISER); }