60 lines
2.4 KiB
C++
60 lines
2.4 KiB
C++
/*
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Copyright (c) 2014 Microsoft Corporation. All rights reserved.
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Released under Apache 2.0 license as described in the file LICENSE.
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Author: Leonardo de Moura
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*/
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#include <string>
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#include "util/io.h"
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#include "library/class.h"
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namespace lean {
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extern "C" uint8 lean_is_class(object* env, object* n);
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extern "C" uint8 lean_is_instance(object* env, object* n);
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extern "C" object* lean_get_class_instances(object* env, object* n);
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extern "C" uint8 lean_is_out_param(object* e);
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extern "C" uint8 lean_has_out_params(object* env, object* n);
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extern "C" object* lean_add_instance(object* env, object* n, object* w);
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extern "C" object* lean_add_instance_old(object* env, object* n);
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bool is_class_out_param(expr const & e) { return lean_is_out_param(e.to_obj_arg()); }
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bool has_class_out_params(environment const & env, name const & c) { return lean_has_out_params(env.to_obj_arg(), c.to_obj_arg()); }
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bool is_class(environment const & env, name const & c) { return lean_is_class(env.to_obj_arg(), c.to_obj_arg()); }
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bool is_instance(environment const & env, name const & i) { return lean_is_instance(env.to_obj_arg(), i.to_obj_arg()); }
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names get_class_instances(environment const & env, name const & c) { return names(lean_get_class_instances(env.to_obj_arg(), c.to_obj_arg())); }
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environment add_instance(environment const & env, name const & n, bool persistent) {
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if (!persistent) throw exception("local instances have been disabled");
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environment new_env = get_except_value<environment>(lean_add_instance_old(env.to_obj_arg(), n.to_obj_arg()));
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new_env = get_io_result<environment>(lean_add_instance(new_env.to_obj_arg(), n.to_obj_arg(), io_mk_world()));
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return new_env;
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}
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static name * g_anonymous_inst_name_prefix = nullptr;
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name const & get_anonymous_instance_prefix() {
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return *g_anonymous_inst_name_prefix;
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}
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name mk_anonymous_inst_name(unsigned idx) {
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return g_anonymous_inst_name_prefix->append_after(idx);
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}
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bool is_anonymous_inst_name(name const & n) {
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// remove mangled macro scopes
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auto n2 = n.get_root();
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if (!n2.is_string()) return false;
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return strncmp(n2.get_string().data(),
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g_anonymous_inst_name_prefix->get_string().data(),
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strlen(g_anonymous_inst_name_prefix->get_string().data())) == 0;
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}
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void initialize_class() {
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g_anonymous_inst_name_prefix = new name("_inst");
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}
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void finalize_class() {
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delete g_anonymous_inst_name_prefix;
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}
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}
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