lean2/src/kernel/converter.h

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/*
Copyright (c) 2014 Microsoft Corporation. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Author: Leonardo de Moura
*/
#pragma once
#include "kernel/environment.h"
namespace lean {
class converter {
public:
/** \brief Abstract context that must be provided to a converter object. */
class context {
public:
virtual name mk_fresh_name() = 0;
virtual expr infer_type(expr const & e) = 0;
virtual void add_cnstr(constraint const & c) = 0;
};
virtual ~converter() {}
virtual expr whnf(expr const & e, context & c) = 0;
virtual bool is_def_eq(expr const & t, expr const & s, context & c, delayed_justification & j) = 0;
bool is_def_eq(expr const & t, expr const & s, context & c);
};
std::unique_ptr<converter> mk_dummy_converter();
std::unique_ptr<converter> mk_default_converter(environment const & env,
optional<module_idx> mod_idx = optional<module_idx>(),
bool memoize = true,
name_set const & extra_opaque = name_set());
}