83 lines
2.7 KiB
C++
83 lines
2.7 KiB
C++
/*
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* Copyright (c) 2015 Cryptonomex, Inc., and contributors.
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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 modification, are permitted provided that the following conditions are met:
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*
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* 1. Any modified source or binaries are used only with the BitShares network.
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*
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* 2. Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.
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*
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* 3. Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
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* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
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* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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*/
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#pragma once
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// This file contains various reflection methods that are used to
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// support the wallet, e.g. allow specifying operations by name
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// instead of ID.
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namespace graphene { namespace wallet {
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struct static_variant_map
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{
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flat_map< string, int > name_to_which;
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vector< string > which_to_name;
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};
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namespace impl {
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struct static_variant_map_visitor
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{
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static_variant_map_visitor() {}
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typedef void result_type;
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template< typename T >
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result_type operator()( const T& dummy )
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{
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assert( which == m.which_to_name.size() );
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std::string name = js_name<T>::name();
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m.name_to_which[ name ] = which;
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m.which_to_name.push_back( name );
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}
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static_variant_map m;
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int which;
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};
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} // namespace impl
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template< typename T >
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T from_which_variant( int which, const variant& v )
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{
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// Parse a variant for a known which()
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T result;
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result.set_which( which );
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from_variant( v, result );
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return result;
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}
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template<typename T>
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static_variant_map create_static_variant_map()
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{
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T dummy;
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int n = dummy.count();
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impl::static_variant_map_visitor vtor;
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for( int i=0; i<n; i++ )
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{
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dummy.set_which(i);
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vtor.which = i;
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dummy.visit( vtor );
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}
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return vtor.m;
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}
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} } // namespace graphene::wallet
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