42 lines
1.8 KiB
C++
42 lines
1.8 KiB
C++
/*
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Copyright (c) 2013 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 "util/exception.h"
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#include "kernel/expr.h"
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#include "kernel/context.h"
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#include "library/tactic/proof_state.h"
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#include "frontends/lean/parser_types.h"
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namespace lean {
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/** \brief Exception used to track parsing erros, it does not leak outside of this class. */
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struct parser_error : public exception {
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pos_info m_pos;
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parser_error(char const * msg, pos_info const & p):exception(msg), m_pos(p) {}
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parser_error(sstream const & msg, pos_info const & p):exception(msg), m_pos(p) {}
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virtual exception * clone() const { return new parser_error(m_msg.c_str(), m_pos); }
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virtual void rethrow() const { throw *this; }
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};
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/** \brief Exception used to report error in the tactic frontend available in the Lean parser. */
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struct tactic_cmd_error : public parser_error {
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proof_state m_state;
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tactic_cmd_error(char const * msg, pos_info const & p, proof_state const & s):parser_error(msg, p), m_state(s) {}
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tactic_cmd_error(sstream const & msg, pos_info const & p, proof_state const & s):parser_error(msg, p), m_state(s) {}
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virtual exception * clone() const { return new tactic_cmd_error(m_msg.c_str(), m_pos, m_state); }
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virtual void rethrow() const { throw *this; }
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};
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/** \brief Exception used to report that a metavariable could not be synthesized. */
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struct metavar_not_synthesized_exception : public exception {
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context m_mvar_ctx;
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expr m_mvar;
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expr m_mvar_type;
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public:
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metavar_not_synthesized_exception(context const & ctx, expr const & mvar, expr const & mvar_type, char const * msg):
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exception(msg), m_mvar_ctx(ctx), m_mvar(mvar), m_mvar_type(mvar_type) {}
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};
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}
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