Ichthyostega
df37fec500
This change allows to disentangle the usages of `lib::SeveralBuilder`, so that at any time during the build process only a single instance is actively populated, all in one row — and thus the required storage can either be pre-allocated, or dynamically extended and shrinked (when filling elements into the last `SeveralBuilder` currently activated) By packaging into a λ-closure, the building of the actual `Port` implementation objects (≙ `Turnout` instances) is delayed until the very end of the build process, and then unloaded into yet another `lib::Several` in one strike. Temporarily, those building functor objects are „hidden“ in the current stack frame, as a new `NodeBuilder` instance is dropped off with an adapted type parameter (embedding the λ-type produced by the last nested `PortBuilder` invocation, while inheriting from previous ones. However, defining a special constructor to cause this »chaining« poses some challenge (regarding overload resolution). Moreover, since the actual processing function shall be embedded directly (as opposed to wrapping it into a `std::function`), further problems can arise when this function is given as a ''function reference''
110 lines
3.2 KiB
C++
110 lines
3.2 KiB
C++
/*
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NodeLinkage(Test) - verify proper render node operation and calldown
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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
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the 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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/** @file node-linkage-test.cpp
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** unit test \ref NodeLinkage_test
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*/
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#include "lib/test/run.hpp"
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#include "steam/engine/proc-node.hpp"
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#include "steam/engine/node-builder.hpp"
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#include "steam/engine/test-rand-ontology.hpp" ///////////TODO
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#include "lib/test/diagnostic-output.hpp"/////////////////TODO
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#include "lib/util.hpp"
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using util::isnil;
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//using std::string;
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namespace steam {
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namespace engine{
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namespace test {
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/***************************************************************//**
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* @test demonstrate and document how [render nodes](\ref proc-node.hpp)
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* are connected into a processing network, allowing to _invoke_
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* a \ref Port on a node to pull-generate a render result.
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* - the foundation layer is formed by the nodes as linked into a network
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* - starting from any Port, a TurnoutSystem can be established
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* - which in turn allows _turn out_ a render result from this port.
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*/
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class NodeLinkage_test : public Test
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{
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virtual void
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run (Arg)
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{
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build_connected_nodes();
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generate_turnout_system();
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trigger_node_port_invocation();
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}
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/** @test TODO Build render nodes linked into a connectivity network
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* @todo WIP 7/24 🔁 define ⟶ ✔ implement
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*/
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void
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build_connected_nodes()
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{
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auto con = prepareNode()
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.preparePort()
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.invoke(&dummyOp)
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.completePort()
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.build();
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CHECK (isnil (con.leads));
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CHECK (1 == con.ports.size());
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}
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/** @test TODO Use existing node connectivity to generate a TurnoutSystem
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* @todo WIP 7/24 🔁 define ⟶ implement
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*/
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void
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generate_turnout_system()
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{
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UNIMPLEMENTED ("use existing node connectivity to generate a TurnoutSystem");
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}
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/** @test TODO Invoke some render nodes as linked together
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* @todo WIP 7/24 🔁 define ⟶ implement
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*/
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void
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trigger_node_port_invocation()
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{
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UNIMPLEMENTED ("operate some render nodes as linked together");
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}
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};
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/** Register this test class... */
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LAUNCHER (NodeLinkage_test, "unit node");
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}}} // namespace steam::engine::test
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