1 files changed, 126 insertions, 0 deletions
diff --git a/exceptions.cpp b/exceptions.cpp
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+++ b/exceptions.cpp
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+// Copyright 2011 Google Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+// * Redistributions of source code must retain the above copyright
+//   notice, this list of conditions and the following disclaimer.
+// * Redistributions in binary form must reproduce the above copyright
+//   notice, this list of conditions and the following disclaimer in the
+//   documentation and/or other materials provided with the distribution.
+// * Neither the name of Google Inc. nor the names of its contributors
+//   may be used to endorse or promote products derived from this software
+//   without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+#include <cassert>
+
+#include <lua.hpp>
+
+#include "c_gate.hpp"
+#include "exceptions.hpp"
+#include "state.ipp"
+
+
+/// Constructs a new error with a plain-text message.
+///
+/// \param message The plain-text error message.
+lutok::error::error(const std::string& message) :
+    std::runtime_error(message)
+{
+}
+
+
+/// Destructor for the error.
+lutok::error::~error(void) throw()
+{
+}
+
+
+/// Constructs a new error.
+///
+/// \param api_function_ The name of the API function that caused the error.
+/// \param message The plain-text error message provided by Lua.
+lutok::api_error::api_error(const std::string& api_function_,
+                            const std::string& message) :
+    error(message),
+    _api_function(api_function_)
+{
+}
+
+
+/// Destructor for the error.
+lutok::api_error::~api_error(void) throw()
+{
+}
+
+
+/// Constructs a new api_error with the message on the top of the Lua stack.
+///
+/// \pre There is an error message on the top of the stack.
+/// \post The error message is popped from the stack.
+///
+/// \param state_ The Lua state.
+/// \param api_function_ The name of the Lua API function that caused the error.
+///
+/// \return A new api_error with the popped message.
+lutok::api_error
+lutok::api_error::from_stack(state& state_, const std::string& api_function_)
+{
+    lua_State* raw_state = lutok::state_c_gate(state_).c_state();
+
+    assert(lua_isstring(raw_state, -1));
+    const std::string message = lua_tostring(raw_state, -1);
+    lua_pop(raw_state, 1);
+    return lutok::api_error(api_function_, message);
+}
+
+
+/// Gets the name of the Lua API function that caused this error.
+///
+/// \return The name of the function.
+const std::string&
+lutok::api_error::api_function(void) const
+{
+    return _api_function;
+}
+ 
+
+/// Constructs a new error.
+///
+/// \param filename_ The file that count not be found.
+lutok::file_not_found_error::file_not_found_error(
+    const std::string& filename_) :
+    error("File '" + filename_ + "' not found"),
+    _filename(filename_)
+{
+}
+
+
+/// Destructor for the error.
+lutok::file_not_found_error::~file_not_found_error(void) throw()
+{
+}
+
+
+/// Gets the name of the file that could not be found.
+///
+/// \return The name of the file.
+const std::string&
+lutok::file_not_found_error::filename(void) const
+{
+    return _filename;
+}