Removed UseGas method from Contract interface

core/interface.go

@@ -4,6 +4,7 @@ import (
 	"context"
 	"math/big"
 	"time"
+
 	"github.com/holiman/uint256"
 )
 
@@ -58,7 +59,6 @@ type Backend interface {
 	// Engine() consensus.Engine
 }
 
-
 type OpCode byte
 
 type TracerResult interface {
@@ -90,16 +90,15 @@ type Contract interface {
 	GetOp(n uint64) OpCode
 	GetByte(n uint64) byte
 	Caller() Address
-  UseGas(gas uint64) (ok bool)
 	Address() Address
 	Value() *big.Int
 }
 
-type Downloader interface{
+type Downloader interface {
 	Progress() Progress
 }
 
-type Progress interface{
+type Progress interface {
 	StartingBlock() uint64
 	CurrentBlock() uint64
 	HighestBlock() uint64
@@ -107,8 +106,7 @@ type Progress interface{
 	KnownStates() uint64
 }
 
-
-type Node interface{
+type Node interface {
 	Server() Server
 	DataDir() string
 	InstanceDir() string
@@ -118,12 +116,10 @@ type Node interface{
 	ResolvePath(x string) string
 }
 
-
-type Server interface{
+type Server interface {
 	PeerCount() int
 }
 
-
 type Logger interface {
 	Trace(string, ...interface{})
 	Debug(string, ...interface{})
@@ -133,8 +129,6 @@ type Logger interface {
 	Error(string, ...interface{})
 }
 
-type PluginLoader interface{
+type PluginLoader interface {
 	Lookup(name string, validate func(interface{}) bool) []interface{}
 }
-
-