Ichthyostega
2530e8c1a1
sketch of an idea how to add an extension possibility without messing up the basic MultiFact template
123 lines
3.1 KiB
C++
123 lines
3.1 KiB
C++
/*
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MultiFactArgument(Test) - passing additional invocation arguments to registered factory functions
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Copyright (C) Lumiera.org
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2009, Hermann Vosseler <Ichthyostega@web.de>
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License as
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published by the Free Software Foundation; either version 2 of the
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License, or (at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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* *****************************************************/
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#include "lib/test/run.hpp"
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#include "lib/test/test-helper.hpp"
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#include "lib/multifact.hpp"
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//#include "lib/util.hpp"
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//#include <boost/lexical_cast.hpp>
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#include <iostream>
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//#include <string>
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#include <tr1/functional>
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namespace lib {
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namespace test{
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// using boost::lexical_cast;
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using lib::test::showSizeof;
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// using util::isSameObject;
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// using util::isnil;
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// using std::ostream;
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// using std::string;
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using std::cout;
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using std::endl;
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using std::tr1::bind;
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// using lumiera::error::LUMIERA_ERROR_INVALID;
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namespace { // a test-dummy ID type, used to encapsulate additional arguments
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enum baseType
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{ ONE = 1
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, TWO
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};
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struct DummyID
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{
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baseType bas;
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int additionalInfo;
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};
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struct Num { int n_; };
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/** dummy "factory" function to be invoked */
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Num*
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fabricateNumberz (int base, int offset)
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{
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cout << "fabricate("<<base<<", "<<offset<<")" << endl;
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Num* product = new Num;
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product->n_ = base*offset;
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return product;
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}
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typedef factory::MultiFact<Num, DummyID, factory::BuildRefcountPtr> TestFactory;
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}
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/*******************************************************************
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* @test define a MultiFact (factory with dynamic registration),
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* which accepts additional arguments and passes them
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* through to the registered factory function(s).
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* @see lib::MultiFact
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* @see query-resolver.cpp
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*/
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class MultiFactArgument_test : public Test
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{
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void
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run (Arg)
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{
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TestFactory theFact;
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theFact.defineProduction (ONE, bind (&fabricateNumberz, 1, _1));
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theFact.defineProduction (TWO, bind (&fabricateNumberz, 2, _1));
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cout << showSizeof (theFact) << endl;
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typedef TestFactory::Product PP;
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DummyID id1 = {ONE, 2};
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DummyID id1 = {TWO, 3};
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PP p1 = theFact(id1);
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PP p2 = theFact(id2);
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ASSERT (1*2 == p1->n_);
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ASSERT (2*3 == p2->n_);
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}
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};
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/** Register this test class... */
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LAUNCHER (MultiFactArgument_test, "unit common");
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}} // namespace lib::test
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