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wreckfun

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This commit is contained in:
Nikolaj Bjorner 2021-02-12 19:46:47 -08:00
parent 612cc5cfba
commit 83f4a006c6
11 changed files with 402 additions and 219 deletions
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52
src/ast/recfun_decl_plugin.h
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@ -20,6 +20,7 @@ Revision History:
#pragma once
#include "ast/ast.h"
#include "ast/ast_pp.h"
#include "util/obj_hashtable.h"
namespace recfun {
@ -74,7 +75,7 @@ namespace recfun {
public:
func_decl* get_decl() const { return m_pred; }
app_ref apply_case_predicate(ptr_vector<expr> const & args) const {
app_ref apply_case_predicate(expr_ref_vector const & args) const {
ast_manager& m = m_pred.get_manager();
return app_ref(m.mk_app(m_pred, args.size(), args.c_ptr()), m);
}
@ -258,6 +259,10 @@ namespace recfun {
return mk_fun_defined(d, args.size(), args.c_ptr());
}
app* mk_fun_defined(def const & d, expr_ref_vector const & args) {
return mk_fun_defined(d, args.size(), args.c_ptr());
}
func_decl_ref_vector get_rec_funs() {
return m_plugin->get_rec_funs();
}
@ -265,5 +270,50 @@ namespace recfun {
app_ref mk_num_rounds_pred(unsigned d);
};
// one case-expansion of `f(t1...tn)`
struct case_expansion {
app_ref m_lhs; // the term to expand
recfun::def * m_def;
expr_ref_vector m_args;
case_expansion(recfun::util& u, app * n);
case_expansion(case_expansion const & from);
case_expansion(case_expansion && from);
std::ostream& display(std::ostream& out) const;
};
inline std::ostream& operator<<(std::ostream& out, case_expansion const & e) {
return e.display(out);
}
// one body-expansion of `f(t1...tn)` using a `C_f_i(t1...tn)`
struct body_expansion {
app_ref m_pred;
recfun::case_def const * m_cdef;
expr_ref_vector m_args;
body_expansion(recfun::util& u, app * n) :
m_pred(n, u.m()), m_cdef(nullptr), m_args(u.m()) {
m_cdef = &u.get_case_def(n);
m_args.append(n->get_num_args(), n->get_args());
}
body_expansion(app_ref & pred, recfun::case_def const & d, expr_ref_vector & args) :
m_pred(pred), m_cdef(&d), m_args(args) {}
body_expansion(body_expansion const & from):
m_pred(from.m_pred), m_cdef(from.m_cdef), m_args(from.m_args) {}
body_expansion(body_expansion && from) :
m_pred(from.m_pred), m_cdef(from.m_cdef), m_args(std::move(from.m_args)) {}
std::ostream& display(std::ostream& out) const;
};
inline std::ostream& operator<<(std::ostream& out, body_expansion const& e) {
return e.display(out);
}
}