Ichthyostega
2704b38da6
so basically it's time to explicate the way our diff language will actually be written. Similar to the list diff case, it's a linear sequence of verb tokens, but in this case, the payload value in each token is a GenNode. This is the very reason why GenNode was conceived as value object with an opaque DataCap payload
62 lines
1.9 KiB
C++
62 lines
1.9 KiB
C++
/*
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TREE-DIFF-APPLICATION.hpp - language to describe differences in linearised form
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Copyright (C) Lumiera.org
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2014, 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 tree-diff-application.hpp
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** Concrete implementation(s) to apply structural changes to hierarchical
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** data structures. Together with the generic #DiffApplicator, this allows
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** to receive linearised structural diff descriptions and apply them to
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** a given target data structure, to effect the corresponding changes.
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**
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** @see diff-list-application-test.cpp
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** @see VerbToken
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**
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*/
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#ifndef LIB_DIFF_TREE_DIFF_APPLICATION_H
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#define LIB_DIFF_TREE_DIFF_APPLICATION_H
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#include "lib/diff/tree-diff.hpp"
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#include "lib/diff/gen-node.hpp"
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namespace lib {
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namespace diff{
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/**
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* concrete strategy to apply a structural diff to a target data structure
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* made from #Record<GenNode> elements.
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* @throws lumiera::error::State when diff application fails due to the
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* target sequence being different than assumed by the given diff.
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* @see #TreeDiffInterpreter explanation of the verbs
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*/
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template<>
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class DiffApplicationStrategy<Rec>
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: public TreeDiffInterpreter
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{
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};
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}} // namespace lib::diff
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#endif /*LIB_DIFF_TREE_DIFF_APPLICATION_H*/
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