42 lines
2.1 KiB
C++
42 lines
2.1 KiB
C++
|
/*
|
||
|
|
Copyright (c) 2015 Microsoft Corporation. All rights reserved.
|
||
|
|
Released under Apache 2.0 license as described in the file LICENSE.
|
||
|
|
|
||
|
|
Author: Leonardo de Moura
|
||
|
|
*/
|
||
|
|
#include "library/tactic/tactic.h"
|
||
|
|
#include "library/tactic/expr_to_tactic.h"
|
||
|
|
|
||
|
|
namespace lean {
|
||
|
|
tactic induction_tactic(name const & H, optional<name> const & rec, list<name> const & ids) {
|
||
|
|
// TODO(Leo)
|
||
|
|
name rec1 = "unknown";
|
||
|
|
if (rec) rec1 = *rec;
|
||
|
|
std::cout << "induction: " << H << " " << rec1 << " " << ids << "\n";
|
||
|
|
return id_tactic();
|
||
|
|
}
|
||
|
|
|
||
|
|
void initialize_induction_tactic() {
|
||
|
|
register_tac(name{"tactic", "induction"},
|
||
|
|
[](type_checker &, elaborate_fn const &, expr const & e, pos_info_provider const *) {
|
||
|
|
name H = tactic_expr_to_id(app_arg(app_fn(e)), "invalid 'induction' tactic, argument must be an identifier");
|
||
|
|
buffer<name> ids;
|
||
|
|
get_tactic_id_list_elements(app_arg(e), ids, "invalid 'induction' tactic, list of identifiers expected");
|
||
|
|
return induction_tactic(H, optional<name>(), to_list(ids.begin(), ids.end()));
|
||
|
|
});
|
||
|
|
register_tac(name{"tactic", "induction_using"},
|
||
|
|
[](type_checker &, elaborate_fn const &, expr const & e, pos_info_provider const *) {
|
||
|
|
name H = tactic_expr_to_id(app_arg(app_fn(app_fn(e))), "invalid 'induction' tactic, argument must be an identifier");
|
||
|
|
check_tactic_expr(app_arg(app_fn(e)), "invalid 'induction' tactic, invalid argument");
|
||
|
|
expr rec = get_tactic_expr_expr(app_arg(app_fn(e)));
|
||
|
|
if (!is_constant(rec))
|
||
|
|
throw expr_to_tactic_exception(app_arg(app_fn(e)), "invalid 'induction' tactic, constant expected");
|
||
|
|
buffer<name> ids;
|
||
|
|
get_tactic_id_list_elements(app_arg(e), ids, "invalid 'induction' tactic, list of identifiers expected");
|
||
|
|
return induction_tactic(H, optional<name>(const_name(rec)), to_list(ids.begin(), ids.end()));
|
||
|
|
});
|
||
|
|
}
|
||
|
|
void finalize_induction_tactic() {
|
||
|
|
}
|
||
|
|
}
|