peerplays_migrated/libraries/chain/assert_evaluator.cpp
2017-05-25 12:13:59 +03:00

78 lines
2.7 KiB
C++

/*
* Copyright (c) 2015 Cryptonomex, Inc., and contributors.
*
* The MIT License
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
#include <graphene/chain/assert_evaluator.hpp>
#include <graphene/chain/block_summary_object.hpp>
#include <graphene/chain/database.hpp>
#include <sstream>
namespace graphene { namespace chain {
struct predicate_evaluator
{
typedef void result_type;
const database& db;
predicate_evaluator( const database& d ):db(d){}
void operator()( const account_name_eq_lit_predicate& p )const
{
FC_ASSERT( p.account_id(db).name == p.name );
}
void operator()( const asset_symbol_eq_lit_predicate& p )const
{
FC_ASSERT( p.asset_id(db).symbol == p.symbol );
}
void operator()( const block_id_predicate& p )const
{
FC_ASSERT( block_summary_id_type( block_header::num_from_id( p.id ) & 0xffff )(db).block_id == p.id );
}
};
void_result assert_evaluator::do_evaluate( const assert_operation& o )
{ try {
const database& _db = db();
uint32_t skip = _db.get_node_properties().skip_flags;
auto max_predicate_opcode = _db.get_global_properties().parameters.max_predicate_opcode;
if( skip & database::skip_assert_evaluation )
return void_result();
for( const auto& p : o.predicates )
{
FC_ASSERT( p.which() >= 0 );
FC_ASSERT( unsigned(p.which()) < max_predicate_opcode );
p.visit( predicate_evaluator( _db ) );
}
return void_result();
} FC_CAPTURE_AND_RETHROW( (o) ) }
void_result assert_evaluator::do_apply( const assert_operation& o )
{ try {
// assert_operation is always a no-op
return void_result();
} FC_CAPTURE_AND_RETHROW( (o) ) }
} } // graphene::chain