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Use lookahead for regex decomposition

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Make snode const
This commit is contained in:
CEisenhofer 2026-06-11 15:34:25 +02:00
parent 671dfedebe
commit be627007e1
22 changed files with 1868 additions and 2066 deletions
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11
src/test/euf_seq_plugin.cpp
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@ -19,8 +19,9 @@ static euf::enode* get_node(euf::egraph& g, seq_util& seq, expr* e) {
if (n) return n;
euf::enode_vector args;
if (is_app(e))
for (expr* arg : *to_app(e))
for (expr* arg : *to_app(e)) {
args.push_back(get_node(g, seq, arg));
}
n = g.mk(e, 0, args.size(), args.data());
if (seq.is_seq(e) || seq.is_re(e))
g.add_th_var(n, ++s_var, seq.get_family_id());
@ -42,20 +43,20 @@ static void test_sgraph_basic() {
expr_ref empty(seq.str.mk_empty(str_sort), m);
expr_ref xy(seq.str.mk_concat(x, y), m);
euf::snode* sx = sg.mk(x);
euf::snode const* sx = sg.mk(x);
SASSERT(sx);
SASSERT(sx->is_var());
SASSERT(!sx->is_ground());
SASSERT(sx->is_regex_free());
SASSERT(sx->length() == 1);
euf::snode* se = sg.mk(empty);
euf::snode const* se = sg.mk(empty);
SASSERT(se);
SASSERT(se->is_empty());
SASSERT(se->is_ground());
SASSERT(se->length() == 0);
euf::snode* sxy = sg.mk(xy);
euf::snode const* sxy = sg.mk(xy);
SASSERT(sxy);
SASSERT(sxy->is_concat());
SASSERT(!sxy->is_ground());
@ -169,7 +170,7 @@ static void test_seq_plugin_star_merge() {
// register in sgraph
sg.mk(star_star);
euf::snode* s = sg.find(star_x);
euf::snode const* s = sg.find(star_x);
SASSERT(s && s->is_star());
std::cout << g << "\n";