405e57eb2d
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
48 lines
1.8 KiB
C++
48 lines
1.8 KiB
C++
/*
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Copyright (c) 2013-2014 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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#pragma once
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#include <utility>
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#include <algorithm>
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#include "util/lua.h"
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#include "util/optional.h"
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#include "util/name_set.h"
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#include "library/tactic/goal.h"
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namespace lean {
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typedef list<goal> goals;
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class proof_state {
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goals m_goals;
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substitution m_subst;
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name_generator m_ngen;
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public:
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proof_state(goals const & gs, substitution const & s, name_generator const & ngen):
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m_goals(gs), m_subst(s), m_ngen(ngen) {}
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proof_state(proof_state const & s, goals const & gs, substitution const & subst):proof_state(gs, subst, s.m_ngen) {}
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proof_state(proof_state const & s, goals const & gs):proof_state(s, gs, s.m_subst) {}
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proof_state(proof_state const & s, name_generator const & ngen):proof_state(s.m_goals, s.m_subst, ngen) {}
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goals const & get_goals() const { return m_goals; }
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substitution const & get_subst() const { return m_subst; }
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name_generator const & get_ngen() const { return m_ngen; }
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/** \brief Return true iff this state does not have any goals left */
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bool is_final_state() const { return empty(m_goals); }
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format pp(formatter const & fmt) const;
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};
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inline optional<proof_state> some_proof_state(proof_state const & s) { return some(s); }
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inline optional<proof_state> none_proof_state() { return optional<proof_state> (); }
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proof_state to_proof_state(expr const & meta, expr const & type, name_generator ngen);
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goals map_goals(proof_state const & s, std::function<optional<goal>(goal const & g)> f);
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io_state_stream const & operator<<(io_state_stream const & out, proof_state const & s);
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UDATA_DEFS_CORE(goals)
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UDATA_DEFS(proof_state)
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void open_proof_state(lua_State * L);
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}
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