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add rewrites for #2575

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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2019-09-20 08:55:53 -07:00
parent 80636dd35f
commit cd0cd82eb7
4 changed files with 78 additions and 21 deletions
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4
src/ast/seq_decl_plugin.h
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@ -348,11 +348,13 @@ public:
class re {
ast_manager& m;
seq_util& u;
family_id m_fid;
public:
re(seq_util& u): m(u.m), m_fid(u.m_fid) {}
re(seq_util& u): u(u), m(u.m), m_fid(u.m_fid) {}
sort* mk_re(sort* seq) { parameter param(seq); return m.mk_sort(m_fid, RE_SORT, 1, &param); }
sort* to_seq(sort* re);
app* mk_to_re(expr* s) { return m.mk_app(m_fid, OP_SEQ_TO_RE, 1, &s); }
app* mk_in_re(expr* s, expr* r) { return m.mk_app(m_fid, OP_SEQ_IN_RE, s, r); }