a15637525a
This is a required component of Kyua and its build will be guarded by the MKKYUA knob. core@ has approved this import. Description: Lutok is a lightweight C++ API library for Lua. Lutok provides thin C++ wrappers around the Lua C API to ease the interaction between C++ and Lua. These wrappers make intensive use of RAII to prevent resource leakage, expose C++-friendly data types, report errors by means of exceptions and ensure that the Lua stack is always left untouched in the face of errors. The library also provides a small subset of miscellaneous utility functions built on top of the wrappers. Lutok focuses on providing a clean and safe C++ interface; the drawback is that it is not suitable for performance-critical environments. In order to implement error-safe C++ wrappers on top of a Lua C binary library, Lutok adds several layers or abstraction and error checking that go against the original spirit of the Lua C API and thus degrade performance.
84 lines
2.6 KiB
C++
84 lines
2.6 KiB
C++
// Copyright 2011 Google Inc.
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// All rights reserved.
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//
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// Redistribution and use in source and binary forms, with or without
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// modification, are permitted provided that the following conditions are
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// met:
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//
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// * Redistributions of source code must retain the above copyright
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// notice, this list of conditions and the following disclaimer.
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// * Redistributions in binary form must reproduce the above copyright
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// notice, this list of conditions and the following disclaimer in the
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// documentation and/or other materials provided with the distribution.
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// * Neither the name of Google Inc. nor the names of its contributors
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// may be used to endorse or promote products derived from this software
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// without specific prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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/// \file exceptions.hpp
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/// Exception types raised by lutok.
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#if !defined(LUTOK_EXCEPTIONS_HPP)
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#define LUTOK_EXCEPTIONS_HPP
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#include <stdexcept>
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#include <string>
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namespace lutok {
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class state;
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/// Base exception for lua errors.
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class error : public std::runtime_error {
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public:
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explicit error(const std::string&);
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virtual ~error(void) throw();
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};
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/// Exception for errors raised by the Lua API library.
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class api_error : public error {
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/// Name of the Lua C API function that caused the error.
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std::string _api_function;
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public:
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explicit api_error(const std::string&, const std::string&);
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virtual ~api_error(void) throw();
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static api_error from_stack(state&, const std::string&);
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const std::string& api_function(void) const;
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};
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/// File not found error.
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class file_not_found_error : public error {
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/// Name of the not-found file.
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std::string _filename;
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public:
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explicit file_not_found_error(const std::string&);
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virtual ~file_not_found_error(void) throw();
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const std::string& filename(void) const;
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};
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} // namespace lutok
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#endif // !defined(LUTOK_EXCEPTIONS_HPP)
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