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update pattern inference to allow patterns with variables outside of scope

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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2026-07-08 19:48:10 -07:00
parent 30a4a84c79
commit aa6dddbdf0
3 changed files with 4 additions and 7 deletions
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8
src/ast/pattern/pattern_inference.cpp
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@ -173,13 +173,9 @@ inline void pattern_inference_cfg::collect::save(expr * n, unsigned delta, info
void pattern_inference_cfg::collect::save_candidate(expr * n, unsigned delta) {
switch (n->get_kind()) {
case AST_VAR: {
unsigned idx = to_var(n)->get_idx();
if (idx >= m_num_bindings + delta) {
save(n, delta, nullptr);
return;
}
uint_set free_vars;
if (delta <= idx)
unsigned idx = to_var(n)->get_idx();
if (delta <= idx && idx < m_num_bindings + delta)
free_vars.insert(idx - delta);
info * i = alloc(info, m, n, free_vars, 1);
save(n, delta, i);