Jacques Lucke
01b6c4b32b
Previously, the signature of a `MultiFunction` was always embedded into the function. There are two issues with that. First, `MFSignature` is relatively large, because it contains multiple strings and vectors. Secondly, constructing it can add overhead that should not be necessary, because often the same signature can be reused. The solution is to only keep a pointer to a signature in `MultiFunction` that is set during construction. Child classes are responsible for making sure that the signature lives long enough. In most cases, the signature is either embedded into the child class or it is allocated statically (and is only created once).
46 lines
1.3 KiB
C++
46 lines
1.3 KiB
C++
/*
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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
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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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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*
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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 Foundation,
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* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*/
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#include "FN_multi_function.hh"
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namespace blender::fn {
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class DummyMultiFunction : public MultiFunction {
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public:
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DummyMultiFunction()
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{
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static MFSignature signature = create_signature();
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this->set_signature(&signature);
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}
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static MFSignature create_signature()
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{
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MFSignatureBuilder signature{"Dummy"};
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return signature.build();
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}
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void call(IndexMask UNUSED(mask),
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MFParams UNUSED(params),
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MFContext UNUSED(context)) const override
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{
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}
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};
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static DummyMultiFunction dummy_multi_function_;
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const MultiFunction &dummy_multi_function = dummy_multi_function_;
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} // namespace blender::fn
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