// Copyright 2016 The go-ethereum Authors
// This file is part of the go-ethereum library.
//
// The go-ethereum library is free software: you can redistribute it and/or modify
// it under the terms of the GNU Lesser General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// The go-ethereum library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public License
// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.

package params

type GasTable struct {
	ExtcodeSize        uint64
	ExtcodeCopy        uint64
	Balance            uint64
	StorageAttribution uint64
	SLoad              uint64
	Calls              uint64
	Suicide            uint64

	ExpByte uint64

	// CreateBySuicide occurs when the
	// refunded account is one that does
	// not exist. This logic is similar
	// to call. May be left nil. Nil means
	// not charged.
	CreateBySuicide uint64
}

var (
	// GasTableHomestead contain the gas prices for
	// the homestead phase.
	GasTableHomestead = GasTable{
		ExtcodeSize:        20,
		ExtcodeCopy:        20,
		Balance:            20,
		StorageAttribution: 20,
		SLoad:              50,
		Calls:              40,
		Suicide:            0,
		ExpByte:            10,
	}

	// GasTableHomestead contain the gas re-prices for
	// the homestead phase.
	GasTableEIP150 = GasTable{
		ExtcodeSize:        800,
		ExtcodeCopy:        700,
		Balance:            400,
		StorageAttribution: 800,
		SLoad:              200,
		Calls:              700,
		Suicide:            5000,
		ExpByte:            10,

		CreateBySuicide: 25000,
	}

	GasTableEIP158 = GasTable{
		ExtcodeSize:        800,
		ExtcodeCopy:        700,
		Balance:            400,
		StorageAttribution: 800,
		SLoad:              200,
		Calls:              700,

		Suicide: 5000,
		ExpByte: 50,

		CreateBySuicide: 25000,
	}
)
