66 lines
2 KiB
C++
66 lines
2 KiB
C++
/*
|
|
Copyright (c) 2014 Microsoft Corporation. All rights reserved.
|
|
Released under Apache 2.0 license as described in the file LICENSE.
|
|
|
|
Author: Leonardo de Moura
|
|
*/
|
|
#include <utility>
|
|
#include <string>
|
|
#include "util/name_set.h"
|
|
#include "library/protected.h"
|
|
#include "library/module.h"
|
|
|
|
namespace lean {
|
|
struct protected_ext : public environment_extension {
|
|
name_set m_protected; // protected declarations
|
|
};
|
|
|
|
struct protected_ext_reg {
|
|
unsigned m_ext_id;
|
|
protected_ext_reg() { m_ext_id = environment::register_extension(std::make_shared<protected_ext>()); }
|
|
};
|
|
|
|
static protected_ext_reg * g_ext = nullptr;
|
|
static protected_ext const & get_extension(environment const & env) {
|
|
return static_cast<protected_ext const &>(env.get_extension(g_ext->m_ext_id));
|
|
}
|
|
static environment update(environment const & env, protected_ext const & ext) {
|
|
return env.update(g_ext->m_ext_id, std::make_shared<protected_ext>(ext));
|
|
}
|
|
|
|
static std::string * g_prt_key = nullptr;
|
|
|
|
environment add_protected(environment const & env, name const & n) {
|
|
protected_ext ext = get_extension(env);
|
|
ext.m_protected.insert(n);
|
|
environment new_env = update(env, ext);
|
|
return module::add(new_env, *g_prt_key, [=](serializer & s) { s << n; });
|
|
}
|
|
|
|
static void protected_reader(deserializer & d, module_idx, shared_environment & senv,
|
|
std::function<void(asynch_update_fn const &)> &,
|
|
std::function<void(delayed_update_fn const &)> &) {
|
|
name n;
|
|
d >> n;
|
|
senv.update([=](environment const & env) -> environment {
|
|
protected_ext ext = get_extension(env);
|
|
ext.m_protected.insert(n);
|
|
return update(env, ext);
|
|
});
|
|
}
|
|
|
|
bool is_protected(environment const & env, name const & n) {
|
|
return get_extension(env).m_protected.contains(n);
|
|
}
|
|
|
|
void initialize_protected() {
|
|
g_ext = new protected_ext_reg();
|
|
g_prt_key = new std::string("prt");
|
|
register_module_object_reader(*g_prt_key, protected_reader);
|
|
}
|
|
|
|
void finalize_protected() {
|
|
delete g_prt_key;
|
|
delete g_ext;
|
|
}
|
|
}
|