NFT object and basic operations

CMakeLists.txt

@@ -135,7 +135,7 @@ else( WIN32 ) # Apple AND Linux
     endif( APPLE )
 
     if( "${CMAKE_CXX_COMPILER_ID}" STREQUAL "GNU" )
-        set( CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fno-builtin-memcmp -Wno-class-memaccess -Wno-parentheses -Wno-terminate -Wno-invalid-offsetof" )
+        set( CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fno-builtin-memcmp -Wno-parentheses -Wno-terminate -Wno-invalid-offsetof" )
     elseif( "${CMAKE_CXX_COMPILER_ID}" STREQUAL "Clang" )
         if( CMAKE_CXX_COMPILER_VERSION VERSION_EQUAL 4.0.0 OR CMAKE_CXX_COMPILER_VERSION VERSION_GREATER 4.0.0 )
             set( CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wno-invalid-partial-specialization" )

libraries/chain/CMakeLists.txt

@@ -115,6 +115,8 @@ add_library( graphene_chain
 
              affiliate_payout.cpp
 
+             nft_evaluator.cpp
+
              ${HEADERS}
              ${PROTOCOL_HEADERS}
              "${CMAKE_CURRENT_BINARY_DIR}/include/graphene/chain/hardfork.hpp"

libraries/chain/db_init.cpp

@@ -49,7 +49,7 @@
 #include <graphene/chain/tournament_object.hpp>
 #include <graphene/chain/match_object.hpp>
 #include <graphene/chain/game_object.hpp>
-
+#include <graphene/chain/nft_object.hpp>
 
 #include <graphene/chain/sport_object.hpp>
 #include <graphene/chain/event_group_object.hpp>
@@ -77,6 +77,7 @@
 #include <graphene/chain/event_evaluator.hpp>
 #include <graphene/chain/betting_market_evaluator.hpp>
 #include <graphene/chain/tournament_evaluator.hpp>
+#include <graphene/chain/nft_evaluator.hpp>
 
 #include <graphene/chain/protocol/fee_schedule.hpp>
 
@@ -163,6 +164,9 @@ const uint8_t betting_market_object::type_id;
 const uint8_t bet_object::space_id;
 const uint8_t bet_object::type_id;
 
+const uint8_t nft_object::space_id;
+const uint8_t nft_object::type_id;
+
 const uint8_t betting_market_position_object::space_id;
 const uint8_t betting_market_position_object::type_id;
 
@@ -243,6 +247,10 @@ void database::initialize_evaluators()
    register_evaluator<lottery_reward_evaluator>();
    register_evaluator<lottery_end_evaluator>();
    register_evaluator<sweeps_vesting_claim_evaluator>();
+   register_evaluator<nft_create_evaluator>();
+   register_evaluator<nft_safe_transfer_from_evaluator>();
+   register_evaluator<nft_approve_evaluator>();
+   register_evaluator<nft_set_approval_for_all_evaluator>();
 }
 
 void database::initialize_indexes()
@@ -285,6 +293,8 @@ void database::initialize_indexes()
    add_index< primary_index<match_index> >();
    add_index< primary_index<game_index> >();
 
+   add_index< primary_index<nft_index > >();
+
    //Implementation object indexes
    add_index< primary_index<transaction_index                             > >();
 

libraries/chain/db_notify.cpp

@@ -293,6 +293,18 @@ struct get_impacted_account_visitor
    void operator()( const sweeps_vesting_claim_operation& op ) {
       _impacted.insert( op.account );
    }
+   void operator()( const nft_create_operation& op ) {
+      _impacted.insert( op.payer );
+   }
+   void operator()( const nft_safe_transfer_from_operation& op ) {
+      _impacted.insert( op.payer );
+   }
+   void operator()( const nft_approve_operation& op ) {
+      _impacted.insert( op.payer );
+   }
+   void operator()( const nft_set_approval_for_all_operation& op ) {
+      _impacted.insert( op.payer );
+   }
 };
 
 void graphene::chain::operation_get_impacted_accounts( const operation& op, flat_set<account_id_type>& result )

libraries/chain/include/graphene/chain/nft_evaluator.hpp

@@ -0,0 +1,43 @@
+#pragma once
+
+#include <graphene/chain/database.hpp>
+#include <graphene/chain/evaluator.hpp>
+#include <graphene/chain/protocol/operations.hpp>
+#include <graphene/chain/protocol/types.hpp>
+
+namespace graphene { namespace chain {
+
+   class nft_create_evaluator : public evaluator<nft_create_evaluator>
+   {
+      public:
+         typedef nft_create_operation operation_type;
+         void_result do_evaluate( const nft_create_operation& o );
+         void_result do_apply( const nft_create_operation& o );
+   };
+
+   class nft_safe_transfer_from_evaluator : public evaluator<nft_safe_transfer_from_evaluator>
+   {
+      public:
+         typedef nft_safe_transfer_from_operation operation_type;
+         void_result do_evaluate( const nft_safe_transfer_from_operation& o );
+         void_result do_apply( const nft_safe_transfer_from_operation& o );
+   };
+
+   class nft_approve_evaluator : public evaluator<nft_approve_evaluator>
+   {
+      public:
+         typedef nft_approve_operation operation_type;
+         void_result do_evaluate( const nft_approve_operation& o );
+         void_result do_apply( const nft_approve_operation& o );
+   };
+
+   class nft_set_approval_for_all_evaluator : public evaluator<nft_set_approval_for_all_evaluator>
+   {
+      public:
+         typedef nft_set_approval_for_all_operation operation_type;
+         void_result do_evaluate( const nft_set_approval_for_all_operation& o );
+         void_result do_apply( const nft_set_approval_for_all_operation& o );
+   };
+
+} } // graphene::chain
+

libraries/chain/include/graphene/chain/nft_object.hpp

@@ -0,0 +1,47 @@
+#pragma once
+#include <graphene/chain/protocol/types.hpp>
+#include <graphene/db/object.hpp>
+#include <graphene/db/generic_index.hpp>
+
+namespace graphene { namespace chain {
+   using namespace graphene::db;
+
+   class nft_object : public abstract_object<nft_object>
+   {
+      public:
+         static const uint8_t space_id = protocol_ids;
+         static const uint8_t type_id  = nft_object_type;
+
+         account_id_type         owner;
+         vector<account_id_type> approved_operators;
+         std::string                  metadata;
+   };
+
+   struct by_owner;
+   struct by_owner_and_id;
+   using nft_multi_index_type = multi_index_container<
+      nft_object,
+      indexed_by<
+         ordered_unique< tag<by_id>,
+            member<object, object_id_type, &object::id>
+         >,
+         ordered_non_unique< tag<by_owner>,
+            member<nft_object, account_id_type, &nft_object::owner>
+         >,
+         ordered_unique< tag<by_owner_and_id>,
+            composite_key<nft_object,
+               member<nft_object, account_id_type, &nft_object::owner>,
+               member<object, object_id_type, &object::id>
+            >
+         >
+      >
+   >;
+   using nft_index = generic_index<nft_object, nft_multi_index_type>;
+
+} } // graphene::chain
+
+FC_REFLECT_DERIVED( graphene::chain::nft_object, (graphene::db::object),
+                    (owner)
+                    (approved_operators)
+                    (metadata) )
+

libraries/chain/include/graphene/chain/protocol/nft_ops.hpp

@@ -0,0 +1,62 @@
+#pragma once
+#include <graphene/chain/protocol/base.hpp>
+#include <graphene/chain/protocol/types.hpp>
+
+namespace graphene { namespace chain {
+
+   struct nft_create_operation : public base_operation
+   {
+      struct fee_parameters_type { uint64_t fee = GRAPHENE_BLOCKCHAIN_PRECISION; };
+      asset fee;
+
+      account_id_type payer;
+      nft_id_type nft_id;
+
+      account_id_type fee_payer()const { return payer; }
+   };
+
+   struct nft_safe_transfer_from_operation : public base_operation
+   {
+      struct fee_parameters_type { uint64_t fee = GRAPHENE_BLOCKCHAIN_PRECISION; };
+      asset fee;
+
+      account_id_type payer;
+      nft_id_type nft_id;
+
+      account_id_type fee_payer()const { return payer; }
+   };
+
+   struct nft_approve_operation : public base_operation
+   {
+      struct fee_parameters_type { uint64_t fee = GRAPHENE_BLOCKCHAIN_PRECISION; };
+      asset fee;
+
+      account_id_type payer;
+      nft_id_type nft_id;
+
+      account_id_type fee_payer()const { return payer; }
+   };
+
+   struct nft_set_approval_for_all_operation : public base_operation
+   {
+      struct fee_parameters_type { uint64_t fee = GRAPHENE_BLOCKCHAIN_PRECISION; };
+      asset fee;
+
+      account_id_type payer;
+      nft_id_type nft_id;
+
+      account_id_type fee_payer()const { return payer; }
+   };
+
+} } // graphene::chain
+
+FC_REFLECT( graphene::chain::nft_create_operation::fee_parameters_type, (fee) )
+FC_REFLECT( graphene::chain::nft_safe_transfer_from_operation::fee_parameters_type, (fee) )
+FC_REFLECT( graphene::chain::nft_approve_operation::fee_parameters_type, (fee) )
+FC_REFLECT( graphene::chain::nft_set_approval_for_all_operation::fee_parameters_type, (fee) )
+
+FC_REFLECT( graphene::chain::nft_create_operation, (fee) (payer) (nft_id) )
+FC_REFLECT( graphene::chain::nft_safe_transfer_from_operation, (fee) (payer) (nft_id) )
+FC_REFLECT( graphene::chain::nft_approve_operation, (fee) (payer) (nft_id) )
+FC_REFLECT( graphene::chain::nft_set_approval_for_all_operation, (fee) (payer) (nft_id) )
+

libraries/chain/include/graphene/chain/protocol/operations.hpp

@@ -45,6 +45,7 @@
 #include <graphene/chain/protocol/event.hpp>
 #include <graphene/chain/protocol/betting_market.hpp>
 #include <graphene/chain/protocol/tournament.hpp>
+#include <graphene/chain/protocol/nft_ops.hpp>
 
 namespace graphene { namespace chain {
 
@@ -135,7 +136,11 @@ namespace graphene { namespace chain {
             ticket_purchase_operation,
             lottery_reward_operation,
             lottery_end_operation,
-            sweeps_vesting_claim_operation
+            sweeps_vesting_claim_operation,
+            nft_create_operation,
+            nft_safe_transfer_from_operation,
+            nft_approve_operation,
+            nft_set_approval_for_all_operation
          > operation;
 
    /// @} // operations group

libraries/chain/include/graphene/chain/protocol/types.hpp

@@ -171,6 +171,7 @@ namespace graphene { namespace chain {
       betting_market_group_object_type,
       betting_market_object_type,
       bet_object_type,
+      nft_object_type,
       OBJECT_TYPE_COUNT ///< Sentry value which contains the number of different object types
    };
 
@@ -230,6 +231,7 @@ namespace graphene { namespace chain {
    class betting_market_group_object;
    class betting_market_object;
    class bet_object;
+   class nft_object;
 
    typedef object_id< protocol_ids, account_object_type,            account_object>               account_id_type;
    typedef object_id< protocol_ids, asset_object_type,              asset_object>                 asset_id_type;
@@ -256,6 +258,7 @@ namespace graphene { namespace chain {
    typedef object_id< protocol_ids, betting_market_group_object_type, betting_market_group_object> betting_market_group_id_type;
    typedef object_id< protocol_ids, betting_market_object_type,     betting_market_object>        betting_market_id_type;
    typedef object_id< protocol_ids, bet_object_type,                bet_object>                   bet_id_type;
+   typedef object_id< protocol_ids, nft_object_type,                nft_object>                   nft_id_type;
 
    // implementation types
    class global_property_object;
@@ -436,6 +439,7 @@ FC_REFLECT_ENUM( graphene::chain::object_type,
                  (betting_market_group_object_type)
                  (betting_market_object_type)
                  (bet_object_type)
+                 (nft_object_type)
                  (OBJECT_TYPE_COUNT)
                )
 FC_REFLECT_ENUM( graphene::chain::impl_object_type,
@@ -505,6 +509,7 @@ FC_REFLECT_TYPENAME( graphene::chain::fba_accumulator_id_type )
 FC_REFLECT_TYPENAME( graphene::chain::betting_market_position_id_type )
 FC_REFLECT_TYPENAME( graphene::chain::global_betting_statistics_id_type )
 FC_REFLECT_TYPENAME( graphene::chain::tournament_details_id_type )
+FC_REFLECT_TYPENAME( graphene::chain::nft_id_type )
 
 FC_REFLECT( graphene::chain::void_t, )
 

libraries/chain/nft_evaluator.cpp

@@ -0,0 +1,58 @@
+#include <graphene/chain/nft_evaluator.hpp>
+#include <graphene/chain/nft_object.hpp>
+
+namespace graphene { namespace chain {
+
+void_result nft_create_evaluator::do_evaluate( const nft_create_operation& op )
+{ try {
+
+   return void_result();
+} FC_CAPTURE_AND_RETHROW( (op) ) }
+
+void_result nft_create_evaluator::do_apply( const nft_create_operation& op )
+{ try {
+
+   return void_result();
+} FC_CAPTURE_AND_RETHROW( (op) ) }
+
+
+void_result nft_safe_transfer_from_evaluator::do_evaluate( const nft_safe_transfer_from_operation& op )
+{ try {
+
+   return void_result();
+} FC_CAPTURE_AND_RETHROW( (op) ) }
+
+void_result nft_safe_transfer_from_evaluator::do_apply( const nft_safe_transfer_from_operation& op )
+{ try {
+
+   return void_result();
+} FC_CAPTURE_AND_RETHROW( (op) ) }
+
+
+void_result nft_approve_evaluator::do_evaluate( const nft_approve_operation& op )
+{ try {
+
+   return void_result();
+} FC_CAPTURE_AND_RETHROW( (op) ) }
+
+void_result nft_approve_evaluator::do_apply( const nft_approve_operation& op )
+{ try {
+
+   return void_result();
+} FC_CAPTURE_AND_RETHROW( (op) ) }
+
+
+void_result nft_set_approval_for_all_evaluator::do_evaluate( const nft_set_approval_for_all_operation& op )
+{ try {
+
+   return void_result();
+} FC_CAPTURE_AND_RETHROW( (op) ) }
+
+void_result nft_set_approval_for_all_evaluator::do_apply( const nft_set_approval_for_all_operation& op )
+{ try {
+
+   return void_result();
+} FC_CAPTURE_AND_RETHROW( (op) ) }
+
+} } // graphene::chain
+

programs/js_operation_serializer/main.cpp

@@ -43,6 +43,7 @@
 #include <graphene/chain/tournament_object.hpp>
 #include <graphene/chain/match_object.hpp>
 #include <graphene/chain/game_object.hpp>
+#include <graphene/chain/nft_object.hpp>
 
 #include <fc/smart_ref_impl.hpp>
 #include <iostream>