08ccd58eb6
definitions are unfolded during elaboration Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
73 lines
3 KiB
C++
73 lines
3 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 "util/sstream.h"
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#include "kernel/environment.h"
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#include "kernel/type_checker.h"
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#include "library/module.h"
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namespace lean {
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struct opaque_hints_ext : public environment_extension {
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name_set m_opaque;
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name_set m_transparent;
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opaque_hints_ext() {}
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};
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struct opaque_hints_ext_reg {
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unsigned m_ext_id;
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opaque_hints_ext_reg() { m_ext_id = environment::register_extension(std::make_shared<opaque_hints_ext>()); }
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};
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static opaque_hints_ext_reg g_ext;
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static opaque_hints_ext const & get_extension(environment const & env) {
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return static_cast<opaque_hints_ext const &>(env.get_extension(g_ext.m_ext_id));
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}
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static environment update(environment const & env, opaque_hints_ext const & ext) {
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return env.update(g_ext.m_ext_id, std::make_shared<opaque_hints_ext>(ext));
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}
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static void check_definition(environment const & env, name const & n) {
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declaration d = env.get(n);
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if (!d.is_definition())
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throw exception(sstream() << "invalid opaque/transparent, '" << n << "' is not a definition");
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}
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environment hide_definition(environment const & env, name const & n) {
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check_definition(env, n);
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auto ext = get_extension(env);
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ext.m_opaque.insert(n);
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ext.m_transparent.erase(n);
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return update(env, ext);
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}
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environment expose_definition(environment const & env, name const & n) {
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check_definition(env, n);
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auto ext = get_extension(env);
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ext.m_opaque.erase(n);
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ext.m_transparent.insert(n);
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return update(env, ext);
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}
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bool is_exposed(environment const & env, name const & n) {
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auto const & ext = get_extension(env);
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return ext.m_transparent.contains(n);
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}
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std::unique_ptr<type_checker> mk_type_checker_with_hints(environment const & env, name_generator const & ngen,
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bool relax_main_opaque, bool only_main_transparent) {
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auto const & ext = get_extension(env);
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if (only_main_transparent) {
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name_set extra_opaque = ext.m_opaque;
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name_set extra_transparent = ext.m_transparent;
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extra_opaque_pred pred([=](name const & n) {
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return
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(!module::is_definition(env, n) || extra_opaque.contains(n)) &&
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(!extra_transparent.contains(n));
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});
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return std::unique_ptr<type_checker>(new type_checker(env, ngen, mk_default_converter(env, relax_main_opaque,
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true, pred)));
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} else {
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name_set extra_opaque = ext.m_opaque;
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extra_opaque_pred pred([=](name const & n) { return extra_opaque.contains(n); });
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return std::unique_ptr<type_checker>(new type_checker(env, ngen, mk_default_converter(env, relax_main_opaque,
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true, pred)));
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}
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}
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}
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