46 lines
2.3 KiB
C++
46 lines
2.3 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 <vector>
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#include "util/exception.h"
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#include "util/sexpr/options.h"
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#include "kernel/context.h"
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#include "kernel/environment.h"
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#include "kernel/formatter.h"
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namespace lean {
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class environment;
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/** \brief Base class for all kernel exceptions. */
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class kernel_exception : public exception {
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protected:
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environment m_env;
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public:
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kernel_exception(environment const & env):m_env(env) {}
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kernel_exception(environment const & env, char const * msg):exception(msg), m_env(env) {}
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kernel_exception(environment const & env, sstream const & strm):exception(strm), m_env(env) {}
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virtual ~kernel_exception() noexcept {}
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environment const & get_environment() const { return m_env; }
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/**
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\brief Return a reference (if available) to the main expression associated with this exception.
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This information is used to provide better error messages.
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*/
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virtual optional<expr> get_main_expr() const { return none_expr(); }
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virtual format pp(formatter const & fmt, options const & opts) const;
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virtual exception * clone() const { return new kernel_exception(m_env, m_msg.c_str()); }
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virtual void rethrow() const { throw *this; }
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};
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[[ noreturn ]] void throw_kernel_exception(environment const & env, char const * msg, optional<expr> const & m = none_expr());
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[[ noreturn ]] void throw_kernel_exception(environment const & env, sstream const & strm,
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optional<expr> const & m = none_expr());
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[[ noreturn ]] void throw_kernel_exception(environment const & env, char const * msg, optional<expr> const & m, pp_fn const & fn);
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[[ noreturn ]] void throw_kernel_exception(environment const & env, optional<expr> const & m, pp_fn const & fn);
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[[ noreturn ]] void throw_kernel_exception(environment const & env, char const * msg, expr const & m, pp_fn const & fn);
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[[ noreturn ]] void throw_kernel_exception(environment const & env, expr const & m, pp_fn const & fn);
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[[ noreturn ]] void throw_unknown_declaration(environment const & env, name const & n);
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[[ noreturn ]] void throw_already_declared(environment const & env, name const & n);
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}
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