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.
109 lines
3.4 KiB
C++
109 lines
3.4 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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#include "stack_cleaner.hpp"
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#include <atf-c++.hpp>
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ATF_TEST_CASE_WITHOUT_HEAD(empty);
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ATF_TEST_CASE_BODY(empty)
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{
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lutok::state state;
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{
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lutok::stack_cleaner cleaner(state);
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ATF_REQUIRE_EQ(0, state.get_top());
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}
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ATF_REQUIRE_EQ(0, state.get_top());
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}
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ATF_TEST_CASE_WITHOUT_HEAD(some);
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ATF_TEST_CASE_BODY(some)
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{
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lutok::state state;
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{
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lutok::stack_cleaner cleaner(state);
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state.push_integer(15);
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ATF_REQUIRE_EQ(1, state.get_top());
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state.push_integer(30);
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ATF_REQUIRE_EQ(2, state.get_top());
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}
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ATF_REQUIRE_EQ(0, state.get_top());
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}
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ATF_TEST_CASE_WITHOUT_HEAD(nested);
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ATF_TEST_CASE_BODY(nested)
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{
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lutok::state state;
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{
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lutok::stack_cleaner cleaner1(state);
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state.push_integer(10);
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ATF_REQUIRE_EQ(1, state.get_top());
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ATF_REQUIRE_EQ(10, state.to_integer());
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{
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lutok::stack_cleaner cleaner2(state);
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state.push_integer(20);
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ATF_REQUIRE_EQ(2, state.get_top());
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ATF_REQUIRE_EQ(20, state.to_integer(-1));
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ATF_REQUIRE_EQ(10, state.to_integer(-2));
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}
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ATF_REQUIRE_EQ(1, state.get_top());
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ATF_REQUIRE_EQ(10, state.to_integer());
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}
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ATF_REQUIRE_EQ(0, state.get_top());
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}
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ATF_TEST_CASE_WITHOUT_HEAD(forget);
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ATF_TEST_CASE_BODY(forget)
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{
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lutok::state state;
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{
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lutok::stack_cleaner cleaner(state);
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state.push_integer(15);
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state.push_integer(30);
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cleaner.forget();
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state.push_integer(60);
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ATF_REQUIRE_EQ(3, state.get_top());
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}
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ATF_REQUIRE_EQ(2, state.get_top());
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ATF_REQUIRE_EQ(30, state.to_integer());
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state.pop(2);
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}
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ATF_INIT_TEST_CASES(tcs)
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{
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ATF_ADD_TEST_CASE(tcs, empty);
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ATF_ADD_TEST_CASE(tcs, some);
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ATF_ADD_TEST_CASE(tcs, nested);
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ATF_ADD_TEST_CASE(tcs, forget);
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}
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