* core/vm, params: implement EXTCODEHASH opcode * core, params: tiny fixes and polish * core: add function description
		
			
				
	
	
		
			94 lines
		
	
	
		
			2.4 KiB
		
	
	
	
		
			Go
		
	
	
	
	
	
			
		
		
	
	
			94 lines
		
	
	
		
			2.4 KiB
		
	
	
	
		
			Go
		
	
	
	
	
	
// Copyright 2016 The go-ethereum Authors
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// This file is part of the go-ethereum library.
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//
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// The go-ethereum library is free software: you can redistribute it and/or modify
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// it under the terms of the GNU Lesser General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// The go-ethereum library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU Lesser General Public License for more details.
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//
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// You should have received a copy of the GNU Lesser General Public License
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// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
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package params
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// GasTable organizes gas prices for different ethereum phases.
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type GasTable struct {
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	ExtcodeSize uint64
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	ExtcodeCopy uint64
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	ExtcodeHash uint64
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	Balance     uint64
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	SLoad       uint64
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	Calls       uint64
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	Suicide     uint64
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	ExpByte uint64
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	// CreateBySuicide occurs when the
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	// refunded account is one that does
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	// not exist. This logic is similar
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	// to call. May be left nil. Nil means
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	// not charged.
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	CreateBySuicide uint64
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}
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// Variables containing gas prices for different ethereum phases.
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var (
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	// GasTableHomestead contain the gas prices for
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	// the homestead phase.
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	GasTableHomestead = GasTable{
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		ExtcodeSize: 20,
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		ExtcodeCopy: 20,
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		Balance:     20,
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		SLoad:       50,
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		Calls:       40,
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		Suicide:     0,
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		ExpByte:     10,
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	}
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	// GasTableEIP150 contain the gas re-prices for
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	// the EIP150 phase.
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	GasTableEIP150 = GasTable{
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		ExtcodeSize: 700,
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		ExtcodeCopy: 700,
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		Balance:     400,
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		SLoad:       200,
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		Calls:       700,
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		Suicide:     5000,
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		ExpByte:     10,
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		CreateBySuicide: 25000,
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	}
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	// GasTableEIP158 contain the gas re-prices for
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	// the EIP155/EIP158 phase.
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	GasTableEIP158 = GasTable{
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		ExtcodeSize: 700,
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		ExtcodeCopy: 700,
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		Balance:     400,
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		SLoad:       200,
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		Calls:       700,
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		Suicide:     5000,
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		ExpByte:     50,
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		CreateBySuicide: 25000,
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	}
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	// GasTableConstantinople contain the gas re-prices for
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	// the constantinople phase.
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	GasTableConstantinople = GasTable{
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		ExtcodeSize: 700,
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		ExtcodeCopy: 700,
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		ExtcodeHash: 400,
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		Balance:     400,
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		SLoad:       200,
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		Calls:       700,
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		Suicide:     5000,
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		ExpByte:     50,
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		CreateBySuicide: 25000,
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	}
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)
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