11be35a165
To do so, a few dependencies have been imported: * external/bsd/lutok * external/mit/lua * external/public-domain/sqlite * external/public-domain/xz The Kyua framework is the new generation of ATF (Automated Test Framework), it is composed of: * external/bsd/atf * external/bsd/kyua-atf-compat * external/bsd/kyua-cli * external/bsd/kyua-tester * tests Kyua/ATF being written in C++, it depends on libstdc++ which is provided by GCC. As this is not part of the sources, Kyua is only compiled when the native GCC utils are installed. To install Kyua do the following: * In a cross-build enviromnent, add the following to the build.sh commandline: -V MKBINUTILS=yes -V MKGCCCMDS=yes WARNING: At this point the import is still experimental, and not supported on native builds (a.k.a make build). Change-Id: I26aee23c5bbd2d64adcb7c1beb98fe0d479d7ada
94 lines
3.2 KiB
C++
94 lines
3.2 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 stack_cleaner.hpp
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/// Provides the stack_cleaner class.
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#if !defined(LUTOK_STACK_CLEANER_HPP)
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#define LUTOK_STACK_CLEANER_HPP
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#include <memory>
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#include <lutok/state.hpp>
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namespace lutok {
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/// A RAII model for values on the Lua stack.
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///
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/// At creation time, the object records the current depth of the Lua stack and,
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/// during destruction, restores the recorded depth by popping as many stack
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/// entries as required. As a corollary, the stack can only grow during the
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/// lifetime of a stack_cleaner object (or shrink, but cannot become shorter
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/// than the depth recorded at creation time).
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///
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/// Use this class as follows:
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///
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/// state s;
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/// {
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/// stack_cleaner cleaner1(s);
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/// s.push_integer(3);
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/// s.push_integer(5);
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/// ... do stuff here ...
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/// for (...) {
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/// stack_cleaner cleaner2(s);
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/// s.load_string("...");
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/// s.pcall(0, 1, 0);
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/// ... do stuff here ...
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/// }
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/// // cleaner2 destroyed; the result of pcall is gone.
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/// }
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/// // cleaner1 destroyed; the integers 3 and 5 are gone.
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///
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/// You must give a name to the instantiated objects even if they cannot be
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/// accessed later. Otherwise, the instance will be destroyed right away and
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/// will not have the desired effect.
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class stack_cleaner {
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struct impl;
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/// Pointer to the shared internal implementation.
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std::auto_ptr< impl > _pimpl;
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/// Disallow copies.
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stack_cleaner(const stack_cleaner&);
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/// Disallow assignment.
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stack_cleaner& operator=(const stack_cleaner&);
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public:
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stack_cleaner(state&);
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~stack_cleaner(void);
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void forget(void);
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};
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} // namespace lutok
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#endif // !defined(LUTOK_STACK_CLEANER_HPP)
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