Merge pull request #926 from nspcc-dev/feature/stack

Implement NEO3 VM stack opcodes
This commit is contained in:
Roman Khimov 2020-05-06 14:51:04 +03:00 committed by GitHub
commit 963a70d54a
No known key found for this signature in database
GPG key ID: 4AEE18F83AFDEB23
10 changed files with 252 additions and 231 deletions

View file

@ -940,13 +940,12 @@ func (c *codegen) emitReverse(num int) {
case 2:
emit.Opcode(c.prog.BinWriter, opcode.SWAP)
case 3:
emit.Int(c.prog.BinWriter, 2)
emit.Opcode(c.prog.BinWriter, opcode.XSWAP)
emit.Opcode(c.prog.BinWriter, opcode.REVERSE3)
case 4:
emit.Opcode(c.prog.BinWriter, opcode.REVERSE4)
default:
for i := 1; i < num; i++ {
emit.Int(c.prog.BinWriter, int64(i))
emit.Opcode(c.prog.BinWriter, opcode.ROLL)
}
emit.Int(c.prog.BinWriter, int64(num))
emit.Opcode(c.prog.BinWriter, opcode.REVERSEN)
}
}

View file

@ -48,18 +48,18 @@ type rpcTestCase struct {
check func(t *testing.T, e *executor, result interface{})
}
const testContractHash = "642e2f47cc6883f0c196cf0dd3dcbb2333300173"
const testContractHash = "76751a2fdde4dc6c7489799a28bb539bc09d1f54"
var rpcTestCases = map[string][]rpcTestCase{
"getapplicationlog": {
{
name: "positive",
params: `["9872fd330d63d64beba7122fcc9678e7f380d2163acff6a7d4f67a3c01cd67d1"]`,
params: `["113437bd8dfc44e3a6dfe77b750fcff246cbe933ca9667311f45d794cf0410cc"]`,
result: func(e *executor) interface{} { return &result.ApplicationLog{} },
check: func(t *testing.T, e *executor, acc interface{}) {
res, ok := acc.(*result.ApplicationLog)
require.True(t, ok)
expectedTxHash, err := util.Uint256DecodeStringLE("9872fd330d63d64beba7122fcc9678e7f380d2163acff6a7d4f67a3c01cd67d1")
expectedTxHash, err := util.Uint256DecodeStringLE("113437bd8dfc44e3a6dfe77b750fcff246cbe933ca9667311f45d794cf0410cc")
require.NoError(t, err)
assert.Equal(t, expectedTxHash, res.TxHash)
assert.Equal(t, 1, len(res.Executions))

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@ -74,6 +74,12 @@ func (c *Context) Next() (opcode.Opcode, []byte, error) {
var numtoread int
switch instr {
case opcode.OLDPUSH1:
// OLDPUSH1 is used during transition to NEO3 in verification scripts.
// FIXME remove #927
if len(c.prog) == 1 {
return opcode.PUSH1, nil, nil
}
case opcode.PUSHDATA1:
if c.nextip >= len(c.prog) {
err = errNoInstParam

View file

@ -65,31 +65,33 @@ const (
CALL Opcode = 0x34
CALLL Opcode = 0x35
// Legacy
OLDPUSH1 Opcode = 0x51
// Stack
DEPTH Opcode = 0x43
DROP Opcode = 0x45
NIP Opcode = 0x46
XDROP Opcode = 0x48
CLEAR Opcode = 0x49
DUP Opcode = 0x4A
OVER Opcode = 0x4B
PICK Opcode = 0x4D
TUCK Opcode = 0x4E
SWAP Opcode = 0x50
OLDPUSH1 Opcode = 0x51 // FIXME remove #927
ROT Opcode = 0x51
ROLL Opcode = 0x52
REVERSE3 Opcode = 0x53
REVERSE4 Opcode = 0x54
REVERSEN Opcode = 0x55
RET Opcode = 0x66
APPCALL Opcode = 0x67
SYSCALL Opcode = 0x68
TAILCALL Opcode = 0x69
// Stack
// Old stack opcodes
DUPFROMALTSTACK Opcode = 0x6A
TOALTSTACK Opcode = 0x6B
FROMALTSTACK Opcode = 0x6C
XDROP Opcode = 0x6D
XSWAP Opcode = 0x72
XTUCK Opcode = 0x73
DEPTH Opcode = 0x74
DROP Opcode = 0x75
DUP Opcode = 0x76
NIP Opcode = 0x77
OVER Opcode = 0x78
PICK Opcode = 0x79
ROLL Opcode = 0x7A
ROT Opcode = 0x7B
SWAP Opcode = 0x7C
TUCK Opcode = 0x7D
// Splice
CAT Opcode = 0x7E

View file

@ -59,7 +59,22 @@ func _() {
_ = x[JMPLEL-51]
_ = x[CALL-52]
_ = x[CALLL-53]
_ = x[DEPTH-67]
_ = x[DROP-69]
_ = x[NIP-70]
_ = x[XDROP-72]
_ = x[CLEAR-73]
_ = x[DUP-74]
_ = x[OVER-75]
_ = x[PICK-77]
_ = x[TUCK-78]
_ = x[SWAP-80]
_ = x[OLDPUSH1-81]
_ = x[ROT-81]
_ = x[ROLL-82]
_ = x[REVERSE3-83]
_ = x[REVERSE4-84]
_ = x[REVERSEN-85]
_ = x[RET-102]
_ = x[APPCALL-103]
_ = x[SYSCALL-104]
@ -67,19 +82,6 @@ func _() {
_ = x[DUPFROMALTSTACK-106]
_ = x[TOALTSTACK-107]
_ = x[FROMALTSTACK-108]
_ = x[XDROP-109]
_ = x[XSWAP-114]
_ = x[XTUCK-115]
_ = x[DEPTH-116]
_ = x[DROP-117]
_ = x[DUP-118]
_ = x[NIP-119]
_ = x[OVER-120]
_ = x[PICK-121]
_ = x[ROLL-122]
_ = x[ROT-123]
_ = x[SWAP-124]
_ = x[TUCK-125]
_ = x[CAT-126]
_ = x[SUBSTR-127]
_ = x[LEFT-128]
@ -89,6 +91,7 @@ func _() {
_ = x[OR-146]
_ = x[XOR-147]
_ = x[EQUAL-151]
_ = x[NOTEQUAL-152]
_ = x[SIGN-153]
_ = x[ABS-154]
_ = x[NEGATE-155]
@ -139,7 +142,7 @@ func _() {
_ = x[THROWIFNOT-241]
}
const _Opcode_name = "PUSHINT8PUSHINT16PUSHINT32PUSHINT64PUSHINT128PUSHINT256PUSHNULLPUSHDATA1PUSHDATA2PUSHDATA4PUSHM1PUSH0PUSH1PUSH2PUSH3PUSH4PUSH5PUSH6PUSH7PUSH8PUSH9PUSH10PUSH11PUSH12PUSH13PUSH14PUSH15PUSH16NOPJMPJMPLJMPIFJMPIFLJMPIFNOTJMPIFNOTLJMPEQJMPEQLJMPNEJMPNELJMPGTJMPGTLJMPGEJMPGELJMPLTJMPLTLJMPLEJMPLELCALLCALLLOLDPUSH1RETAPPCALLSYSCALLTAILCALLDUPFROMALTSTACKTOALTSTACKFROMALTSTACKXDROPXSWAPXTUCKDEPTHDROPDUPNIPOVERPICKROLLROTSWAPTUCKCATSUBSTRLEFTRIGHTINVERTANDORXOREQUALSIGNABSNEGATEINCDECADDSUBMULDIVMODSHLSHRNOTBOOLANDBOOLORNZNUMEQUALNUMNOTEQUALLTLTEGTGTEMINMAXWITHINPACKUNPACKNEWARRAY0NEWARRAYNEWARRAYTNEWSTRUCT0NEWSTRUCTNEWMAPSIZEHASKEYKEYSVALUESPICKITEMAPPENDSETITEMREVERSEITEMSREMOVECLEARITEMSISNULLISTYPECONVERTTHROWTHROWIFNOT"
const _Opcode_name = "PUSHINT8PUSHINT16PUSHINT32PUSHINT64PUSHINT128PUSHINT256PUSHNULLPUSHDATA1PUSHDATA2PUSHDATA4PUSHM1PUSH0PUSH1PUSH2PUSH3PUSH4PUSH5PUSH6PUSH7PUSH8PUSH9PUSH10PUSH11PUSH12PUSH13PUSH14PUSH15PUSH16NOPJMPJMPLJMPIFJMPIFLJMPIFNOTJMPIFNOTLJMPEQJMPEQLJMPNEJMPNELJMPGTJMPGTLJMPGEJMPGELJMPLTJMPLTLJMPLEJMPLELCALLCALLLDEPTHDROPNIPXDROPCLEARDUPOVERPICKTUCKSWAPOLDPUSH1ROLLREVERSE3REVERSE4REVERSENRETAPPCALLSYSCALLTAILCALLDUPFROMALTSTACKTOALTSTACKFROMALTSTACKCATSUBSTRLEFTRIGHTINVERTANDORXOREQUALNOTEQUALSIGNABSNEGATEINCDECADDSUBMULDIVMODSHLSHRNOTBOOLANDBOOLORNZNUMEQUALNUMNOTEQUALLTLTEGTGTEMINMAXWITHINPACKUNPACKNEWARRAY0NEWARRAYNEWARRAYTNEWSTRUCT0NEWSTRUCTNEWMAPSIZEHASKEYKEYSVALUESPICKITEMAPPENDSETITEMREVERSEITEMSREMOVECLEARITEMSISNULLISTYPECONVERTTHROWTHROWIFNOT"
var _Opcode_map = map[Opcode]string{
0: _Opcode_name[0:8],
@ -191,84 +194,86 @@ var _Opcode_map = map[Opcode]string{
51: _Opcode_name[286:292],
52: _Opcode_name[292:296],
53: _Opcode_name[296:301],
81: _Opcode_name[301:309],
102: _Opcode_name[309:312],
103: _Opcode_name[312:319],
104: _Opcode_name[319:326],
105: _Opcode_name[326:334],
106: _Opcode_name[334:349],
107: _Opcode_name[349:359],
108: _Opcode_name[359:371],
109: _Opcode_name[371:376],
114: _Opcode_name[376:381],
115: _Opcode_name[381:386],
116: _Opcode_name[386:391],
117: _Opcode_name[391:395],
118: _Opcode_name[395:398],
119: _Opcode_name[398:401],
120: _Opcode_name[401:405],
121: _Opcode_name[405:409],
122: _Opcode_name[409:413],
123: _Opcode_name[413:416],
124: _Opcode_name[416:420],
125: _Opcode_name[420:424],
126: _Opcode_name[424:427],
127: _Opcode_name[427:433],
128: _Opcode_name[433:437],
129: _Opcode_name[437:442],
144: _Opcode_name[442:448],
145: _Opcode_name[448:451],
146: _Opcode_name[451:453],
147: _Opcode_name[453:456],
151: _Opcode_name[456:461],
153: _Opcode_name[461:465],
154: _Opcode_name[465:468],
155: _Opcode_name[468:474],
156: _Opcode_name[474:477],
157: _Opcode_name[477:480],
158: _Opcode_name[480:483],
159: _Opcode_name[483:486],
160: _Opcode_name[486:489],
161: _Opcode_name[489:492],
162: _Opcode_name[492:495],
168: _Opcode_name[495:498],
169: _Opcode_name[498:501],
170: _Opcode_name[501:504],
171: _Opcode_name[504:511],
172: _Opcode_name[511:517],
177: _Opcode_name[517:519],
179: _Opcode_name[519:527],
180: _Opcode_name[527:538],
181: _Opcode_name[538:540],
182: _Opcode_name[540:543],
183: _Opcode_name[543:545],
184: _Opcode_name[545:548],
185: _Opcode_name[548:551],
186: _Opcode_name[551:554],
187: _Opcode_name[554:560],
192: _Opcode_name[560:564],
193: _Opcode_name[564:570],
194: _Opcode_name[570:579],
195: _Opcode_name[579:587],
196: _Opcode_name[587:596],
197: _Opcode_name[596:606],
198: _Opcode_name[606:615],
200: _Opcode_name[615:621],
202: _Opcode_name[621:625],
203: _Opcode_name[625:631],
204: _Opcode_name[631:635],
205: _Opcode_name[635:641],
206: _Opcode_name[641:649],
207: _Opcode_name[649:655],
208: _Opcode_name[655:662],
209: _Opcode_name[662:674],
210: _Opcode_name[674:680],
211: _Opcode_name[680:690],
216: _Opcode_name[690:696],
217: _Opcode_name[696:702],
219: _Opcode_name[702:709],
240: _Opcode_name[709:714],
241: _Opcode_name[714:724],
67: _Opcode_name[301:306],
69: _Opcode_name[306:310],
70: _Opcode_name[310:313],
72: _Opcode_name[313:318],
73: _Opcode_name[318:323],
74: _Opcode_name[323:326],
75: _Opcode_name[326:330],
77: _Opcode_name[330:334],
78: _Opcode_name[334:338],
80: _Opcode_name[338:342],
81: _Opcode_name[342:350],
82: _Opcode_name[350:354],
83: _Opcode_name[354:362],
84: _Opcode_name[362:370],
85: _Opcode_name[370:378],
102: _Opcode_name[378:381],
103: _Opcode_name[381:388],
104: _Opcode_name[388:395],
105: _Opcode_name[395:403],
106: _Opcode_name[403:418],
107: _Opcode_name[418:428],
108: _Opcode_name[428:440],
126: _Opcode_name[440:443],
127: _Opcode_name[443:449],
128: _Opcode_name[449:453],
129: _Opcode_name[453:458],
144: _Opcode_name[458:464],
145: _Opcode_name[464:467],
146: _Opcode_name[467:469],
147: _Opcode_name[469:472],
151: _Opcode_name[472:477],
152: _Opcode_name[477:485],
153: _Opcode_name[485:489],
154: _Opcode_name[489:492],
155: _Opcode_name[492:498],
156: _Opcode_name[498:501],
157: _Opcode_name[501:504],
158: _Opcode_name[504:507],
159: _Opcode_name[507:510],
160: _Opcode_name[510:513],
161: _Opcode_name[513:516],
162: _Opcode_name[516:519],
168: _Opcode_name[519:522],
169: _Opcode_name[522:525],
170: _Opcode_name[525:528],
171: _Opcode_name[528:535],
172: _Opcode_name[535:541],
177: _Opcode_name[541:543],
179: _Opcode_name[543:551],
180: _Opcode_name[551:562],
181: _Opcode_name[562:564],
182: _Opcode_name[564:567],
183: _Opcode_name[567:569],
184: _Opcode_name[569:572],
185: _Opcode_name[572:575],
186: _Opcode_name[575:578],
187: _Opcode_name[578:584],
192: _Opcode_name[584:588],
193: _Opcode_name[588:594],
194: _Opcode_name[594:603],
195: _Opcode_name[603:611],
196: _Opcode_name[611:620],
197: _Opcode_name[620:630],
198: _Opcode_name[630:639],
200: _Opcode_name[639:645],
202: _Opcode_name[645:649],
203: _Opcode_name[649:655],
204: _Opcode_name[655:659],
205: _Opcode_name[659:665],
206: _Opcode_name[665:673],
207: _Opcode_name[673:679],
208: _Opcode_name[679:686],
209: _Opcode_name[686:698],
210: _Opcode_name[698:704],
211: _Opcode_name[704:714],
216: _Opcode_name[714:720],
217: _Opcode_name[720:726],
219: _Opcode_name[726:733],
240: _Opcode_name[733:738],
241: _Opcode_name[738:748],
}
func (i Opcode) String() string {

View file

@ -353,9 +353,31 @@ func (s *Stack) Swap(n1, n2 int) error {
if n1 == n2 {
return nil
}
s.swap(n1, n2)
return nil
}
func (s *Stack) swap(n1, n2 int) {
a := s.Peek(n1)
b := s.Peek(n2)
a.value, b.value = b.value, a.value
}
// ReverseTop reverses top n items of the stack.
func (s *Stack) ReverseTop(n int) error {
if n < 0 {
return errors.New("negative index")
} else if n > s.len {
return errors.New("too big index")
} else if n <= 1 {
return nil
}
for i, j := 0, n-1; i < j; {
s.swap(i, j)
i++
j--
}
return nil
}

View file

@ -553,10 +553,6 @@ func (v *VM) execute(ctx *Context, op opcode.Opcode, parameter []byte) (err erro
val := int(op) - int(opcode.PUSH1) + 1
v.estack.PushVal(val)
case opcode.OLDPUSH1:
// FIXME remove this after Issue transactions will be removed
v.estack.PushVal(1)
case opcode.PUSH0:
v.estack.PushVal([]byte{})
@ -593,25 +589,6 @@ func (v *VM) execute(ctx *Context, op opcode.Opcode, parameter []byte) (err erro
case opcode.DUPFROMALTSTACK:
v.estack.Push(v.astack.Dup(0))
case opcode.DUP:
v.estack.Push(v.estack.Dup(0))
case opcode.SWAP:
err := v.estack.Swap(1, 0)
if err != nil {
panic(err.Error())
}
case opcode.TUCK:
a := v.estack.Dup(0)
if a == nil {
panic("no top-level element found")
}
if v.estack.Len() < 2 {
panic("can't TUCK with a one-element stack")
}
v.estack.InsertAt(a, 2)
case opcode.CAT:
b := v.estack.Pop().Bytes()
a := v.estack.Pop().Bytes()
@ -656,6 +633,21 @@ func (v *VM) execute(ctx *Context, op opcode.Opcode, parameter []byte) (err erro
s := v.estack.Pop().Bytes()
v.estack.PushVal(s[len(s)-l:])
case opcode.DEPTH:
v.estack.PushVal(v.estack.Len())
case opcode.DROP:
if v.estack.Len() < 1 {
panic("stack is too small")
}
v.estack.Pop()
case opcode.NIP:
elem := v.estack.RemoveAt(1)
if elem == nil {
panic("no second element found")
}
case opcode.XDROP:
n := int(v.estack.Pop().BigInt().Int64())
if n < 0 {
@ -666,41 +658,11 @@ func (v *VM) execute(ctx *Context, op opcode.Opcode, parameter []byte) (err erro
panic("bad index")
}
case opcode.XSWAP:
n := int(v.estack.Pop().BigInt().Int64())
err := v.estack.Swap(n, 0)
if err != nil {
panic(err.Error())
}
case opcode.CLEAR:
v.estack.Clear()
case opcode.XTUCK:
n := int(v.estack.Pop().BigInt().Int64())
if n <= 0 {
panic("XTUCK: invalid length")
}
a := v.estack.Dup(0)
if a == nil {
panic("no top-level element found")
}
if n > v.estack.Len() {
panic("can't push to the position specified")
}
v.estack.InsertAt(a, n)
case opcode.ROT:
err := v.estack.Roll(2)
if err != nil {
panic(err.Error())
}
case opcode.DEPTH:
v.estack.PushVal(v.estack.Len())
case opcode.NIP:
elem := v.estack.RemoveAt(1)
if elem == nil {
panic("no second element found")
}
case opcode.DUP:
v.estack.Push(v.estack.Dup(0))
case opcode.OVER:
a := v.estack.Dup(1)
@ -720,6 +682,28 @@ func (v *VM) execute(ctx *Context, op opcode.Opcode, parameter []byte) (err erro
}
v.estack.Push(a)
case opcode.TUCK:
a := v.estack.Dup(0)
if a == nil {
panic("no top-level element found")
}
if v.estack.Len() < 2 {
panic("can't TUCK with a one-element stack")
}
v.estack.InsertAt(a, 2)
case opcode.SWAP:
err := v.estack.Swap(1, 0)
if err != nil {
panic(err.Error())
}
case opcode.ROT:
err := v.estack.Roll(2)
if err != nil {
panic(err.Error())
}
case opcode.ROLL:
n := int(v.estack.Pop().BigInt().Int64())
err := v.estack.Roll(n)
@ -727,11 +711,17 @@ func (v *VM) execute(ctx *Context, op opcode.Opcode, parameter []byte) (err erro
panic(err.Error())
}
case opcode.DROP:
if v.estack.Len() < 1 {
panic("stack is too small")
case opcode.REVERSE3, opcode.REVERSE4, opcode.REVERSEN:
n := 3
switch op {
case opcode.REVERSE4:
n = 4
case opcode.REVERSEN:
n = int(v.estack.Pop().BigInt().Int64())
}
if err := v.estack.ReverseTop(n); err != nil {
panic(err.Error())
}
v.estack.Pop()
// Bit operations.
case opcode.INVERT:

View file

@ -1049,22 +1049,32 @@ func runWithArgs(t *testing.T, prog []byte, result interface{}, args ...interfac
getTestFuncForVM(prog, result, args...)(t)
}
func getTestFuncForVM(prog []byte, result interface{}, args ...interface{}) func(t *testing.T) {
func getCustomTestFuncForVM(prog []byte, check func(t *testing.T, v *VM), args ...interface{}) func(t *testing.T) {
return func(t *testing.T) {
v := load(prog)
for i := range args {
v.estack.PushVal(args[i])
}
if result == nil {
if check == nil {
checkVMFailed(t, v)
return
}
runVM(t, v)
require.Equal(t, 1, v.estack.Len())
require.Equal(t, makeStackItem(result), v.estack.Pop().value)
check(t, v)
}
}
func getTestFuncForVM(prog []byte, result interface{}, args ...interface{}) func(t *testing.T) {
var f func(t *testing.T, v *VM)
if result != nil {
f = func(t *testing.T, v *VM) {
require.Equal(t, 1, v.estack.Len())
require.Equal(t, makeStackItem(result), v.estack.Pop().value)
}
}
return getCustomTestFuncForVM(prog, f, args...)
}
func TestNOTEQUALByteArray(t *testing.T) {
prog := makeProgram(opcode.NOTEQUAL)
t.Run("True", getTestFuncForVM(prog, true, []byte{1, 2}, []byte{0, 1, 2}))
@ -1568,29 +1578,35 @@ func TestROLLGood(t *testing.T) {
assert.Equal(t, makeStackItem(1), vm.estack.Pop().value)
}
func TestXTUCK(t *testing.T) {
prog := makeProgram(opcode.XTUCK)
t.Run("NoItem", getTestFuncForVM(prog, nil, 1))
t.Run("NoN", getTestFuncForVM(prog, nil, 1, 2))
t.Run("Negative", getTestFuncForVM(prog, nil, -1))
t.Run("Zero", getTestFuncForVM(prog, nil, 1, 0))
func getCheckEStackFunc(items ...interface{}) func(t *testing.T, v *VM) {
return func(t *testing.T, v *VM) {
require.Equal(t, len(items), v.estack.Len())
for i := 0; i < len(items); i++ {
assert.Equal(t, makeStackItem(items[i]), v.estack.Peek(i).Item())
}
}
}
func TestXTUCKgood(t *testing.T) {
prog := makeProgram(opcode.XTUCK)
topelement := 5
xtuckdepth := 3
vm := load(prog)
vm.estack.PushVal(0)
vm.estack.PushVal(1)
vm.estack.PushVal(2)
vm.estack.PushVal(3)
vm.estack.PushVal(4)
vm.estack.PushVal(topelement)
vm.estack.PushVal(xtuckdepth)
runVM(t, vm)
assert.Equal(t, int64(topelement), vm.estack.Peek(0).BigInt().Int64())
assert.Equal(t, int64(topelement), vm.estack.Peek(xtuckdepth).BigInt().Int64())
func TestREVERSE3(t *testing.T) {
prog := makeProgram(opcode.REVERSE3)
t.Run("SmallStack", getTestFuncForVM(prog, nil, 1, 2))
t.Run("Good", getCustomTestFuncForVM(prog, getCheckEStackFunc(1, 2, 3), 1, 2, 3))
}
func TestREVERSE4(t *testing.T) {
prog := makeProgram(opcode.REVERSE4)
t.Run("SmallStack", getTestFuncForVM(prog, nil, 1, 2, 3))
t.Run("Good", getCustomTestFuncForVM(prog, getCheckEStackFunc(1, 2, 3, 4), 1, 2, 3, 4))
}
func TestREVERSEN(t *testing.T) {
prog := makeProgram(opcode.REVERSEN)
t.Run("NoArgument", getTestFuncForVM(prog, nil))
t.Run("SmallStack", getTestFuncForVM(prog, nil, 1, 2, 3))
t.Run("NegativeArgument", getTestFuncForVM(prog, nil, 1, 2, -1))
t.Run("Zero", getCustomTestFuncForVM(prog, getCheckEStackFunc(3, 2, 1), 1, 2, 3, 0))
t.Run("OneItem", getCustomTestFuncForVM(prog, getCheckEStackFunc(42), 42, 1))
t.Run("Good", getCustomTestFuncForVM(prog, getCheckEStackFunc(1, 2, 3, 4, 5), 1, 2, 3, 4, 5, 5))
}
func TestTUCKbadNoitems(t *testing.T) {
@ -1700,6 +1716,15 @@ func TestXDROPgood(t *testing.T) {
assert.Equal(t, int64(1), vm.estack.Peek(1).BigInt().Int64())
}
func TestCLEAR(t *testing.T) {
prog := makeProgram(opcode.CLEAR)
v := load(prog)
v.estack.PushVal(123)
require.Equal(t, 1, v.estack.Len())
require.NoError(t, v.Run())
require.Equal(t, 0, v.estack.Len())
}
func TestINVERTbadNoitem(t *testing.T) {
prog := makeProgram(opcode.INVERT)
runWithArgs(t, prog, nil)
@ -2045,34 +2070,6 @@ func TestSWAP(t *testing.T) {
t.Run("SmallStack", getTestFuncForVM(prog, nil, 4))
}
func TestXSWAPGood(t *testing.T) {
prog := makeProgram(opcode.XSWAP)
vm := load(prog)
vm.estack.PushVal(1)
vm.estack.PushVal(2)
vm.estack.PushVal(3)
vm.estack.PushVal(4)
vm.estack.PushVal(5)
vm.estack.PushVal(3)
runVM(t, vm)
assert.Equal(t, 5, vm.estack.Len())
assert.Equal(t, int64(2), vm.estack.Pop().BigInt().Int64())
assert.Equal(t, int64(4), vm.estack.Pop().BigInt().Int64())
assert.Equal(t, int64(3), vm.estack.Pop().BigInt().Int64())
assert.Equal(t, int64(5), vm.estack.Pop().BigInt().Int64())
assert.Equal(t, int64(1), vm.estack.Pop().BigInt().Int64())
}
func TestXSWAPBad1(t *testing.T) {
prog := makeProgram(opcode.XSWAP)
runWithArgs(t, prog, nil, 1, 2, -1)
}
func TestXSWAPBad2(t *testing.T) {
prog := makeProgram(opcode.XSWAP)
runWithArgs(t, prog, nil, 1, 2, 3, 4, 4)
}
func TestDupInt(t *testing.T) {
prog := makeProgram(opcode.DUP, opcode.ABS)
vm := load(prog)