45 lines
1.3 KiB
C++
45 lines
1.3 KiB
C++
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/*
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Copyright (c) 2015 Daniel Selsam. All rights reserved.
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Released under Apache 2.0 license as described in the file LICENSE.
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Author: Daniel Selsam
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*/
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#include "library/blast/imp_extension.h"
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#include "library/blast/blast.h"
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namespace lean {
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namespace blast {
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imp_extension::imp_extension(unsigned state_id): m_state_id(state_id), m_parent(nullptr) {}
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imp_extension::imp_extension(imp_extension * parent):
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m_state_id(parent->m_state_id), m_parent(parent) {
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parent->inc_ref();
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}
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imp_extension::~imp_extension() { if (m_parent) m_parent->dec_ref(); }
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imp_extension * imp_extension::clone() {
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return new imp_extension(this);
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}
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void imp_extension::hypothesis_activated(hypothesis const & h, hypothesis_idx hidx) {
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imp_extension_state & state = get_imp_extension_state(m_state_id);
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if (is_nil(m_asserts)) state.push();
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m_asserts = cons(h, m_asserts);
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state.assert(h);
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}
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void imp_extension_state::replay_actions(imp_extension * imp_ext) {
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list<hypothesis> const & asserts = reverse(imp_ext->get_asserts());
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if (is_nil(asserts)) return;
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push();
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for_each(asserts, [&](hypothesis const & h) { assert(h); });
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}
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void imp_extension_state::undo_actions(imp_extension * imp_ext) {
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list<hypothesis> const & asserts = imp_ext->get_asserts();
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if (is_nil(asserts)) return;
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pop();
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}
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}}
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