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vm: implement NEWBUFFER opcode

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This commit is contained in:
Evgenii Stratonikov 2020-05-12 14:53:17 +03:00
parent a3a3a77431
commit a5f6e0e53d
4 changed files with 78 additions and 61 deletions
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1
pkg/vm/opcode/opcode.go
View file

@ -146,6 +146,7 @@ const (
STARG Opcode = 0x87
// Splice
NEWBUFFER Opcode = 0x88
CAT Opcode = 0x8B
SUBSTR Opcode = 0x8C
LEFT Opcode = 0x8D

116
pkg/vm/opcode/opcode_string.go
View file

@ -132,6 +132,7 @@ func _() {
_ = x[STARG5-133]
_ = x[STARG6-134]
_ = x[STARG-135]
_ = x[NEWBUFFER-136]
_ = x[CAT-139]
_ = x[SUBSTR-140]
_ = x[LEFT-141]
@ -190,7 +191,7 @@ func _() {
_ = x[CONVERT-219]
}
const _Opcode_name = "PUSHINT8PUSHINT16PUSHINT32PUSHINT64PUSHINT128PUSHINT256PUSHAPUSHNULLPUSHDATA1PUSHDATA2PUSHDATA4PUSHM1PUSH0PUSH1PUSH2PUSH3PUSH4PUSH5PUSH6PUSH7PUSH8PUSH9PUSH10PUSH11PUSH12PUSH13PUSH14PUSH15PUSH16NOPJMPJMPLJMPIFJMPIFLJMPIFNOTJMPIFNOTLJMPEQJMPEQLJMPNEJMPNELJMPGTJMPGTLJMPGEJMPGELJMPLTJMPLTLJMPLEJMPLELCALLCALLLCALLAABORTASSERTTHROWRETSYSCALLDEPTHDROPNIPXDROPCLEARDUPOVERPICKTUCKSWAPOLDPUSH1ROLLREVERSE3REVERSE4REVERSENINITSSLOTINITSLOTLDSFLD0LDSFLD1LDSFLD2LDSFLD3LDSFLD4LDSFLD5LDSFLD6LDSFLDSTSFLD0STSFLD1STSFLD2STSFLD3STSFLD4STSFLD5STSFLD6STSFLDLDLOC0LDLOC1LDLOC2LDLOC3LDLOC4LDLOC5LDLOC6LDLOCSTLOC0STLOC1STLOC2STLOC3STLOC4STLOC5STLOC6STLOCLDARG0LDARG1LDARG2LDARG3LDARG4LDARG5LDARG6LDARGSTARG0STARG1STARG2STARG3STARG4STARG5STARG6STARGCATSUBSTRLEFTRIGHTINVERTANDORXOREQUALNOTEQUALSIGNABSNEGATEINCDECADDSUBMULDIVMODSHLSHRNOTBOOLANDBOOLORNZNUMEQUALNUMNOTEQUALLTLTEGTGTEMINMAXWITHINPACKUNPACKNEWARRAY0NEWARRAYNEWARRAYTNEWSTRUCT0NEWSTRUCTNEWMAPSIZEHASKEYKEYSVALUESPICKITEMAPPENDSETITEMREVERSEITEMSREMOVECLEARITEMSISNULLISTYPECONVERT"
const _Opcode_name = "PUSHINT8PUSHINT16PUSHINT32PUSHINT64PUSHINT128PUSHINT256PUSHAPUSHNULLPUSHDATA1PUSHDATA2PUSHDATA4PUSHM1PUSH0PUSH1PUSH2PUSH3PUSH4PUSH5PUSH6PUSH7PUSH8PUSH9PUSH10PUSH11PUSH12PUSH13PUSH14PUSH15PUSH16NOPJMPJMPLJMPIFJMPIFLJMPIFNOTJMPIFNOTLJMPEQJMPEQLJMPNEJMPNELJMPGTJMPGTLJMPGEJMPGELJMPLTJMPLTLJMPLEJMPLELCALLCALLLCALLAABORTASSERTTHROWRETSYSCALLDEPTHDROPNIPXDROPCLEARDUPOVERPICKTUCKSWAPOLDPUSH1ROLLREVERSE3REVERSE4REVERSENINITSSLOTINITSLOTLDSFLD0LDSFLD1LDSFLD2LDSFLD3LDSFLD4LDSFLD5LDSFLD6LDSFLDSTSFLD0STSFLD1STSFLD2STSFLD3STSFLD4STSFLD5STSFLD6STSFLDLDLOC0LDLOC1LDLOC2LDLOC3LDLOC4LDLOC5LDLOC6LDLOCSTLOC0STLOC1STLOC2STLOC3STLOC4STLOC5STLOC6STLOCLDARG0LDARG1LDARG2LDARG3LDARG4LDARG5LDARG6LDARGSTARG0STARG1STARG2STARG3STARG4STARG5STARG6STARGNEWBUFFERCATSUBSTRLEFTRIGHTINVERTANDORXOREQUALNOTEQUALSIGNABSNEGATEINCDECADDSUBMULDIVMODSHLSHRNOTBOOLANDBOOLORNZNUMEQUALNUMNOTEQUALLTLTEGTGTEMINMAXWITHINPACKUNPACKNEWARRAY0NEWARRAYNEWARRAYTNEWSTRUCT0NEWSTRUCTNEWMAPSIZEHASKEYKEYSVALUESPICKITEMAPPENDSETITEMREVERSEITEMSREMOVECLEARITEMSISNULLISTYPECONVERT"
var _Opcode_map = map[Opcode]string{
0: _Opcode_name[0:8],
@ -314,62 +315,63 @@ var _Opcode_map = map[Opcode]string{
133: _Opcode_name[712:718],
134: _Opcode_name[718:724],
135: _Opcode_name[724:729],
139: _Opcode_name[729:732],
140: _Opcode_name[732:738],
141: _Opcode_name[738:742],
142: _Opcode_name[742:747],
144: _Opcode_name[747:753],
145: _Opcode_name[753:756],
146: _Opcode_name[756:758],
147: _Opcode_name[758:761],
151: _Opcode_name[761:766],
152: _Opcode_name[766:774],
153: _Opcode_name[774:778],
154: _Opcode_name[778:781],
155: _Opcode_name[781:787],
156: _Opcode_name[787:790],
157: _Opcode_name[790:793],
158: _Opcode_name[793:796],
159: _Opcode_name[796:799],
160: _Opcode_name[799:802],
161: _Opcode_name[802:805],
162: _Opcode_name[805:808],
168: _Opcode_name[808:811],
169: _Opcode_name[811:814],
170: _Opcode_name[814:817],
171: _Opcode_name[817:824],
172: _Opcode_name[824:830],
177: _Opcode_name[830:832],
179: _Opcode_name[832:840],
180: _Opcode_name[840:851],
181: _Opcode_name[851:853],
182: _Opcode_name[853:856],
183: _Opcode_name[856:858],
184: _Opcode_name[858:861],
185: _Opcode_name[861:864],
186: _Opcode_name[864:867],
187: _Opcode_name[867:873],
192: _Opcode_name[873:877],
193: _Opcode_name[877:883],
194: _Opcode_name[883:892],
195: _Opcode_name[892:900],
196: _Opcode_name[900:909],
197: _Opcode_name[909:919],
198: _Opcode_name[919:928],
200: _Opcode_name[928:934],
202: _Opcode_name[934:938],
203: _Opcode_name[938:944],
204: _Opcode_name[944:948],
205: _Opcode_name[948:954],
206: _Opcode_name[954:962],
207: _Opcode_name[962:968],
208: _Opcode_name[968:975],
209: _Opcode_name[975:987],
210: _Opcode_name[987:993],
211: _Opcode_name[993:1003],
216: _Opcode_name[1003:1009],
217: _Opcode_name[1009:1015],
219: _Opcode_name[1015:1022],
136: _Opcode_name[729:738],
139: _Opcode_name[738:741],
140: _Opcode_name[741:747],
141: _Opcode_name[747:751],
142: _Opcode_name[751:756],
144: _Opcode_name[756:762],
145: _Opcode_name[762:765],
146: _Opcode_name[765:767],
147: _Opcode_name[767:770],
151: _Opcode_name[770:775],
152: _Opcode_name[775:783],
153: _Opcode_name[783:787],
154: _Opcode_name[787:790],
155: _Opcode_name[790:796],
156: _Opcode_name[796:799],
157: _Opcode_name[799:802],
158: _Opcode_name[802:805],
159: _Opcode_name[805:808],
160: _Opcode_name[808:811],
161: _Opcode_name[811:814],
162: _Opcode_name[814:817],
168: _Opcode_name[817:820],
169: _Opcode_name[820:823],
170: _Opcode_name[823:826],
171: _Opcode_name[826:833],
172: _Opcode_name[833:839],
177: _Opcode_name[839:841],
179: _Opcode_name[841:849],
180: _Opcode_name[849:860],
181: _Opcode_name[860:862],
182: _Opcode_name[862:865],
183: _Opcode_name[865:867],
184: _Opcode_name[867:870],
185: _Opcode_name[870:873],
186: _Opcode_name[873:876],
187: _Opcode_name[876:882],
192: _Opcode_name[882:886],
193: _Opcode_name[886:892],
194: _Opcode_name[892:901],
195: _Opcode_name[901:909],
196: _Opcode_name[909:918],
197: _Opcode_name[918:928],
198: _Opcode_name[928:937],
200: _Opcode_name[937:943],
202: _Opcode_name[943:947],
203: _Opcode_name[947:953],
204: _Opcode_name[953:957],
205: _Opcode_name[957:963],
206: _Opcode_name[963:971],
207: _Opcode_name[971:977],
208: _Opcode_name[977:984],
209: _Opcode_name[984:996],
210: _Opcode_name[996:1002],
211: _Opcode_name[1002:1012],
216: _Opcode_name[1012:1018],
217: _Opcode_name[1018:1024],
219: _Opcode_name[1024:1031],
}
func (i Opcode) String() string {

7
pkg/vm/vm.go
View file

@ -635,6 +635,13 @@ func (v *VM) execute(ctx *Context, op opcode.Opcode, parameter []byte) (err erro
item := v.estack.Pop().Item()
ctx.arguments.Set(int(parameter[0]), item)
case opcode.NEWBUFFER:
n := toInt(v.estack.Pop().BigInt())
if n < 0 || n > MaxItemSize {
panic("invalid size")
}
v.estack.PushVal(NewBufferItem(make([]byte, n)))
case opcode.CAT:
b := v.estack.Pop().Bytes()
a := v.estack.Pop().Bytes()

7
pkg/vm/vm_test.go
View file

@ -1154,6 +1154,13 @@ func TestDECBigResult(t *testing.T) {
checkVMFailed(t, vm)
}
func TestNEWBUFFER(t *testing.T) {
prog := makeProgram(opcode.NEWBUFFER)
t.Run("Good", getTestFuncForVM(prog, NewBufferItem([]byte{0, 0, 0}), 3))
t.Run("Negative", getTestFuncForVM(prog, nil, -1))
t.Run("TooBig", getTestFuncForVM(prog, nil, MaxItemSize+1))
}
func TestNEWARRAY0(t *testing.T) {
prog := makeProgram(opcode.NEWARRAY0)
runWithArgs(t, prog, []StackItem{})