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energy_native.go
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energy_native.go
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// Copyright (c) 2018 The VeChainThor developers
// Distributed under the GNU Lesser General Public License v3.0 software license, see the accompanying
// file LICENSE or <https://www.gnu.org/licenses/lgpl-3.0.html>
package builtin
import (
"math/big"
"github.com/ethereum/go-ethereum/common"
"github.com/vechain/thor/v2/thor"
"github.com/vechain/thor/v2/xenv"
)
func init() {
defines := []struct {
name string
run func(env *xenv.Environment) []interface{}
}{
{"native_totalSupply", func(env *xenv.Environment) []interface{} {
env.UseGas(thor.SloadGas)
supply, err := Energy.Native(env.State(), env.BlockContext().Time).TotalSupply()
if err != nil {
panic(err)
}
return []interface{}{supply}
}},
{"native_totalBurned", func(env *xenv.Environment) []interface{} {
env.UseGas(thor.SloadGas)
burned, err := Energy.Native(env.State(), env.BlockContext().Time).TotalBurned()
if err != nil {
panic(err)
}
return []interface{}{burned}
}},
{"native_get", func(env *xenv.Environment) []interface{} {
var addr common.Address
env.ParseArgs(&addr)
env.UseGas(thor.GetBalanceGas)
bal, err := Energy.Native(env.State(), env.BlockContext().Time).Get(thor.Address(addr))
if err != nil {
panic(err)
}
return []interface{}{bal}
}},
{"native_add", func(env *xenv.Environment) []interface{} {
var args struct {
Addr common.Address
Amount *big.Int
}
env.ParseArgs(&args)
if args.Amount.Sign() == 0 {
return nil
}
env.UseGas(thor.GetBalanceGas)
exist, err := env.State().Exists(thor.Address(args.Addr))
if err != nil {
panic(err)
}
if exist {
env.UseGas(thor.SstoreResetGas)
} else {
env.UseGas(thor.SstoreSetGas)
}
if err := Energy.Native(env.State(), env.BlockContext().Time).Add(thor.Address(args.Addr), args.Amount); err != nil {
panic(err)
}
return nil
}},
{"native_sub", func(env *xenv.Environment) []interface{} {
var args struct {
Addr common.Address
Amount *big.Int
}
env.ParseArgs(&args)
if args.Amount.Sign() == 0 {
return []interface{}{true}
}
env.UseGas(thor.GetBalanceGas)
ok, err := Energy.Native(env.State(), env.BlockContext().Time).Sub(thor.Address(args.Addr), args.Amount)
if err != nil {
panic(err)
}
if ok {
env.UseGas(thor.SstoreResetGas)
}
return []interface{}{ok}
}},
{"native_master", func(env *xenv.Environment) []interface{} {
var addr common.Address
env.ParseArgs(&addr)
env.UseGas(thor.GetBalanceGas)
master, err := env.State().GetMaster(thor.Address(addr))
if err != nil {
panic(err)
}
return []interface{}{master}
}},
}
abi := Energy.NativeABI()
for _, def := range defines {
if method, found := abi.MethodByName(def.name); found {
nativeMethods[methodKey{Energy.Address, method.ID()}] = &nativeMethod{
abi: method,
run: def.run,
}
} else {
panic("method not found: " + def.name)
}
}
}