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have free variable utility use a class for more efficient re-use

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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2014-09-15 16:14:22 -07:00
parent 73070585b8
commit c09903288f
39 changed files with 300 additions and 303 deletions
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18
src/ast/rewriter/var_subst.h
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@ -81,9 +81,23 @@ void instantiate(ast_manager & m, quantifier * q, expr * const * exprs, expr_ref
Return the sorts of the free variables.
*/
void get_free_vars(expr* e, ptr_vector<sort>& sorts);
void get_free_vars(ast_mark& mark, ptr_vector<expr>& todo, expr* e, ptr_vector<sort>& sorts);
class expr_free_vars {
expr_sparse_mark m_mark;
ptr_vector<sort> m_sorts;
ptr_vector<expr> m_todo;
public:
void reset();
void operator()(expr* e);
void accumulate(expr* e);
bool empty() const { return m_sorts.empty(); }
unsigned size() const { return m_sorts.size(); }
sort* operator[](unsigned idx) const { return m_sorts[idx]; }
bool contains(unsigned idx) const { return idx < m_sorts.size() && m_sorts[idx] != 0; }
void set_default_sort(sort* s);
void reverse() { m_sorts.reverse(); }
sort*const* c_ptr() const { return m_sorts.c_ptr(); }
};
#endif