34 lines
1 KiB
C++
34 lines
1 KiB
C++
/*
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Copyright (c) 2016 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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#pragma once
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#include <memory>
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#include "library/type_context.h"
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namespace lean {
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/** \brief Helper class for making sure we have a cache that is compatible
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with a given environment and transparency mode. */
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template<typename Cache>
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class cache_compatibility_helper {
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std::unique_ptr<Cache> m_cache_ptr[LEAN_NUM_TRANSPARENCY_MODES];
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public:
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Cache & get_cache_for(environment const & env, transparency_mode m) {
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unsigned midx = static_cast<unsigned>(m);
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if (!m_cache_ptr[midx] || !is_eqp(env, m_cache_ptr[midx]->env())) {
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m_cache_ptr[midx].reset(new Cache(env));
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}
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return *m_cache_ptr[midx].get();
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}
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Cache & get_cache_for(type_context_old const & ctx) {
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return get_cache_for(ctx.env(), ctx.mode());
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}
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void clear() {
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for (unsigned i = 0; i < 4; i++) m_cache_ptr[i].reset();
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}
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};
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}
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