1// Copyright 2011 Google Inc. 2// All rights reserved. 3// 4// Redistribution and use in source and binary forms, with or without 5// modification, are permitted provided that the following conditions are 6// met: 7// 8// * Redistributions of source code must retain the above copyright 9// notice, this list of conditions and the following disclaimer. 10// * Redistributions in binary form must reproduce the above copyright 11// notice, this list of conditions and the following disclaimer in the 12// documentation and/or other materials provided with the distribution. 13// * Neither the name of Google Inc. nor the names of its contributors 14// may be used to endorse or promote products derived from this software 15// without specific prior written permission. 16// 17// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 18// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 19// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 20// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 21// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 22// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 23// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 24// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 25// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 26// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 27// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 28 29#include <cassert> 30 31#include <lua.hpp> 32 33#include "c_gate.hpp" 34#include "exceptions.hpp" 35#include "state.ipp" 36 37 38/// Constructs a new error with a plain-text message. 39/// 40/// \param message The plain-text error message. 41lutok::error::error(const std::string& message) : 42 std::runtime_error(message) 43{ 44} 45 46 47/// Destructor for the error. 48lutok::error::~error(void) throw() 49{ 50} 51 52 53/// Constructs a new error. 54/// 55/// \param api_function_ The name of the API function that caused the error. 56/// \param message The plain-text error message provided by Lua. 57lutok::api_error::api_error(const std::string& api_function_, 58 const std::string& message) : 59 error(message), 60 _api_function(api_function_) 61{ 62} 63 64 65/// Destructor for the error. 66lutok::api_error::~api_error(void) throw() 67{ 68} 69 70 71/// Constructs a new api_error with the message on the top of the Lua stack. 72/// 73/// \pre There is an error message on the top of the stack. 74/// \post The error message is popped from the stack. 75/// 76/// \param state_ The Lua state. 77/// \param api_function_ The name of the Lua API function that caused the error. 78/// 79/// \return A new api_error with the popped message. 80lutok::api_error 81lutok::api_error::from_stack(state& state_, const std::string& api_function_) 82{ 83 lua_State* raw_state = lutok::state_c_gate(state_).c_state(); 84 85 assert(lua_isstring(raw_state, -1)); 86 const std::string message = lua_tostring(raw_state, -1); 87 lua_pop(raw_state, 1); 88 return lutok::api_error(api_function_, message); 89} 90 91 92/// Gets the name of the Lua API function that caused this error. 93/// 94/// \return The name of the function. 95const std::string& 96lutok::api_error::api_function(void) const 97{ 98 return _api_function; 99} 100 101 102/// Constructs a new error. 103/// 104/// \param filename_ The file that count not be found. 105lutok::file_not_found_error::file_not_found_error( 106 const std::string& filename_) : 107 error("File '" + filename_ + "' not found"), 108 _filename(filename_) 109{ 110} 111 112 113/// Destructor for the error. 114lutok::file_not_found_error::~file_not_found_error(void) throw() 115{ 116} 117 118 119/// Gets the name of the file that could not be found. 120/// 121/// \return The name of the file. 122const std::string& 123lutok::file_not_found_error::filename(void) const 124{ 125 return _filename; 126} 127