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fix tout -> out. Tune generation of automata transitions

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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2016-01-15 03:31:30 +05:30
parent 3ff97357a3
commit 2d41b0e29b
3 changed files with 57 additions and 36 deletions
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21
src/ast/rewriter/seq_rewriter.h
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@ -27,20 +27,27 @@ Notes:
#include"automaton.h"
class sym_expr {
bool m_is_pred;
enum ty {
t_char,
t_pred,
t_range
};
ty m_ty;
expr_ref m_t;
expr_ref m_s;
unsigned m_ref;
sym_expr(bool is_pred, expr_ref& t) : m_is_pred(is_pred), m_t(t), m_ref(0) {}
sym_expr(ty ty, expr_ref& t, expr_ref& s) : m_ty(ty), m_t(t), m_s(s), m_ref(0) {}
public:
expr_ref accept(expr* e);
static sym_expr* mk_char(expr_ref& t) { return alloc(sym_expr, false, t); }
static sym_expr* mk_char(ast_manager& m, expr* t) { expr_ref tr(t, m); return alloc(sym_expr, false, tr); }
static sym_expr* mk_pred(expr_ref& t) { return alloc(sym_expr, true, t); }
static sym_expr* mk_char(expr_ref& t) { return alloc(sym_expr, t_char, t, t); }
static sym_expr* mk_char(ast_manager& m, expr* t) { expr_ref tr(t, m); return mk_char(tr); }
static sym_expr* mk_pred(expr_ref& t) { return alloc(sym_expr, t_pred, t, t); }
static sym_expr* mk_range(expr_ref& lo, expr_ref& hi) { return alloc(sym_expr, t_range, lo, hi); }
void inc_ref() { ++m_ref; }
void dec_ref() { --m_ref; if (m_ref == 0) dealloc(this); }
std::ostream& display(std::ostream& out) const;
bool is_char() const { return !m_is_pred; }
bool is_pred() const { return m_is_pred; }
bool is_char() const { return m_ty == t_char; }
bool is_pred() const { return !is_char(); }
expr* get_char() const { SASSERT(is_char()); return m_t; }
};