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vm: support exceptions

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Implement 3 new instructions: TRY,ENDTRY,ENDFINALLY.
1. TRY marks the start of the block where exceptions are catched.
    It has 2 arguments which are relative offsets of exception handler
    and the end of the whole try/catch construction.
2. ENDTRY denotes either end of try or catch block.
3. ENDFINALLY denotes end of finally block which is executed
    irregardless of whether an exception has occured.
This commit is contained in:
Evgenii Stratonikov 2020-07-22 12:05:46 +03:00
parent c0d7b9d234
commit 797324cb04
6 changed files with 415 additions and 139 deletions
Download patch file Download diff file Expand all files Collapse all files

262
pkg/vm/opcode/opcode_string.go
View file

@ -64,6 +64,11 @@ func _() {
_ = x[ABORT-55]
_ = x[ASSERT-56]
_ = x[THROW-58]
_ = x[TRY-59]
_ = x[TRYL-60]
_ = x[ENDTRY-61]
_ = x[ENDTRYL-62]
_ = x[ENDFINALLY-63]
_ = x[RET-64]
_ = x[SYSCALL-65]
_ = x[DEPTH-67]
@ -191,7 +196,7 @@ func _() {
_ = x[CONVERT-219]
}
const _Opcode_name = "PUSHINT8PUSHINT16PUSHINT32PUSHINT64PUSHINT128PUSHINT256PUSHAPUSHNULLPUSHDATA1PUSHDATA2PUSHDATA4PUSHM1PUSH0PUSH1PUSH2PUSH3PUSH4PUSH5PUSH6PUSH7PUSH8PUSH9PUSH10PUSH11PUSH12PUSH13PUSH14PUSH15PUSH16NOPJMPJMP_LJMPIFJMPIF_LJMPIFNOTJMPIFNOT_LJMPEQJMPEQ_LJMPNEJMPNE_LJMPGTJMPGT_LJMPGEJMPGE_LJMPLTJMPLT_LJMPLEJMPLE_LCALLCALL_LCALLAABORTASSERTTHROWRETSYSCALLDEPTHDROPNIPXDROPCLEARDUPOVERPICKTUCKSWAPROTROLLREVERSE3REVERSE4REVERSENINITSSLOTINITSLOTLDSFLD0LDSFLD1LDSFLD2LDSFLD3LDSFLD4LDSFLD5LDSFLD6LDSFLDSTSFLD0STSFLD1STSFLD2STSFLD3STSFLD4STSFLD5STSFLD6STSFLDLDLOC0LDLOC1LDLOC2LDLOC3LDLOC4LDLOC5LDLOC6LDLOCSTLOC0STLOC1STLOC2STLOC3STLOC4STLOC5STLOC6STLOCLDARG0LDARG1LDARG2LDARG3LDARG4LDARG5LDARG6LDARGSTARG0STARG1STARG2STARG3STARG4STARG5STARG6STARGNEWBUFFERMEMCPYCATSUBSTRLEFTRIGHTINVERTANDORXOREQUALNOTEQUALSIGNABSNEGATEINCDECADDSUBMULDIVMODSHLSHRNOTBOOLANDBOOLORNZNUMEQUALNUMNOTEQUALLTLTEGTGTEMINMAXWITHINPACKUNPACKNEWARRAY0NEWARRAYNEWARRAY_TNEWSTRUCT0NEWSTRUCTNEWMAPSIZEHASKEYKEYSVALUESPICKITEMAPPENDSETITEMREVERSEITEMSREMOVECLEARITEMSISNULLISTYPECONVERT"
const _Opcode_name = "PUSHINT8PUSHINT16PUSHINT32PUSHINT64PUSHINT128PUSHINT256PUSHAPUSHNULLPUSHDATA1PUSHDATA2PUSHDATA4PUSHM1PUSH0PUSH1PUSH2PUSH3PUSH4PUSH5PUSH6PUSH7PUSH8PUSH9PUSH10PUSH11PUSH12PUSH13PUSH14PUSH15PUSH16NOPJMPJMP_LJMPIFJMPIF_LJMPIFNOTJMPIFNOT_LJMPEQJMPEQ_LJMPNEJMPNE_LJMPGTJMPGT_LJMPGEJMPGE_LJMPLTJMPLT_LJMPLEJMPLE_LCALLCALL_LCALLAABORTASSERTTHROWTRYTRY_LENDTRYENDTRY_LENDFINALLYRETSYSCALLDEPTHDROPNIPXDROPCLEARDUPOVERPICKTUCKSWAPROTROLLREVERSE3REVERSE4REVERSENINITSSLOTINITSLOTLDSFLD0LDSFLD1LDSFLD2LDSFLD3LDSFLD4LDSFLD5LDSFLD6LDSFLDSTSFLD0STSFLD1STSFLD2STSFLD3STSFLD4STSFLD5STSFLD6STSFLDLDLOC0LDLOC1LDLOC2LDLOC3LDLOC4LDLOC5LDLOC6LDLOCSTLOC0STLOC1STLOC2STLOC3STLOC4STLOC5STLOC6STLOCLDARG0LDARG1LDARG2LDARG3LDARG4LDARG5LDARG6LDARGSTARG0STARG1STARG2STARG3STARG4STARG5STARG6STARGNEWBUFFERMEMCPYCATSUBSTRLEFTRIGHTINVERTANDORXOREQUALNOTEQUALSIGNABSNEGATEINCDECADDSUBMULDIVMODSHLSHRNOTBOOLANDBOOLORNZNUMEQUALNUMNOTEQUALLTLTEGTGTEMINMAXWITHINPACKUNPACKNEWARRAY0NEWARRAYNEWARRAY_TNEWSTRUCT0NEWSTRUCTNEWMAPSIZEHASKEYKEYSVALUESPICKITEMAPPENDSETITEMREVERSEITEMSREMOVECLEARITEMSISNULLISTYPECONVERT"
var _Opcode_map = map[Opcode]string{
0: _Opcode_name[0:8],
@ -248,131 +253,136 @@ var _Opcode_map = map[Opcode]string{
55: _Opcode_name[321:326],
56: _Opcode_name[326:332],
58: _Opcode_name[332:337],
64: _Opcode_name[337:340],
65: _Opcode_name[340:347],
67: _Opcode_name[347:352],
69: _Opcode_name[352:356],
70: _Opcode_name[356:359],
72: _Opcode_name[359:364],
73: _Opcode_name[364:369],
74: _Opcode_name[369:372],
75: _Opcode_name[372:376],
77: _Opcode_name[376:380],
78: _Opcode_name[380:384],
80: _Opcode_name[384:388],
81: _Opcode_name[388:391],
82: _Opcode_name[391:395],
83: _Opcode_name[395:403],
84: _Opcode_name[403:411],
85: _Opcode_name[411:419],
86: _Opcode_name[419:428],
87: _Opcode_name[428:436],
88: _Opcode_name[436:443],
89: _Opcode_name[443:450],
90: _Opcode_name[450:457],
91: _Opcode_name[457:464],
92: _Opcode_name[464:471],
93: _Opcode_name[471:478],
94: _Opcode_name[478:485],
95: _Opcode_name[485:491],
96: _Opcode_name[491:498],
97: _Opcode_name[498:505],
98: _Opcode_name[505:512],
99: _Opcode_name[512:519],
100: _Opcode_name[519:526],
101: _Opcode_name[526:533],
102: _Opcode_name[533:540],
103: _Opcode_name[540:546],
104: _Opcode_name[546:552],
105: _Opcode_name[552:558],
106: _Opcode_name[558:564],
107: _Opcode_name[564:570],
108: _Opcode_name[570:576],
109: _Opcode_name[576:582],
110: _Opcode_name[582:588],
111: _Opcode_name[588:593],
112: _Opcode_name[593:599],
113: _Opcode_name[599:605],
114: _Opcode_name[605:611],
115: _Opcode_name[611:617],
116: _Opcode_name[617:623],
117: _Opcode_name[623:629],
118: _Opcode_name[629:635],
119: _Opcode_name[635:640],
120: _Opcode_name[640:646],
121: _Opcode_name[646:652],
122: _Opcode_name[652:658],
123: _Opcode_name[658:664],
124: _Opcode_name[664:670],
125: _Opcode_name[670:676],
126: _Opcode_name[676:682],
127: _Opcode_name[682:687],
128: _Opcode_name[687:693],
129: _Opcode_name[693:699],
130: _Opcode_name[699:705],
131: _Opcode_name[705:711],
132: _Opcode_name[711:717],
133: _Opcode_name[717:723],
134: _Opcode_name[723:729],
135: _Opcode_name[729:734],
136: _Opcode_name[734:743],
137: _Opcode_name[743:749],
139: _Opcode_name[749:752],
140: _Opcode_name[752:758],
141: _Opcode_name[758:762],
142: _Opcode_name[762:767],
144: _Opcode_name[767:773],
145: _Opcode_name[773:776],
146: _Opcode_name[776:778],
147: _Opcode_name[778:781],
151: _Opcode_name[781:786],
152: _Opcode_name[786:794],
153: _Opcode_name[794:798],
154: _Opcode_name[798:801],
155: _Opcode_name[801:807],
156: _Opcode_name[807:810],
157: _Opcode_name[810:813],
158: _Opcode_name[813:816],
159: _Opcode_name[816:819],
160: _Opcode_name[819:822],
161: _Opcode_name[822:825],
162: _Opcode_name[825:828],
168: _Opcode_name[828:831],
169: _Opcode_name[831:834],
170: _Opcode_name[834:837],
171: _Opcode_name[837:844],
172: _Opcode_name[844:850],
177: _Opcode_name[850:852],
179: _Opcode_name[852:860],
180: _Opcode_name[860:871],
181: _Opcode_name[871:873],
182: _Opcode_name[873:876],
183: _Opcode_name[876:878],
184: _Opcode_name[878:881],
185: _Opcode_name[881:884],
186: _Opcode_name[884:887],
187: _Opcode_name[887:893],
192: _Opcode_name[893:897],
193: _Opcode_name[897:903],
194: _Opcode_name[903:912],
195: _Opcode_name[912:920],
196: _Opcode_name[920:930],
197: _Opcode_name[930:940],
198: _Opcode_name[940:949],
200: _Opcode_name[949:955],
202: _Opcode_name[955:959],
203: _Opcode_name[959:965],
204: _Opcode_name[965:969],
205: _Opcode_name[969:975],
206: _Opcode_name[975:983],
207: _Opcode_name[983:989],
208: _Opcode_name[989:996],
209: _Opcode_name[996:1008],
210: _Opcode_name[1008:1014],
211: _Opcode_name[1014:1024],
216: _Opcode_name[1024:1030],
217: _Opcode_name[1030:1036],
219: _Opcode_name[1036:1043],
59: _Opcode_name[337:340],
60: _Opcode_name[340:345],
61: _Opcode_name[345:351],
62: _Opcode_name[351:359],
63: _Opcode_name[359:369],
64: _Opcode_name[369:372],
65: _Opcode_name[372:379],
67: _Opcode_name[379:384],
69: _Opcode_name[384:388],
70: _Opcode_name[388:391],
72: _Opcode_name[391:396],
73: _Opcode_name[396:401],
74: _Opcode_name[401:404],
75: _Opcode_name[404:408],
77: _Opcode_name[408:412],
78: _Opcode_name[412:416],
80: _Opcode_name[416:420],
81: _Opcode_name[420:423],
82: _Opcode_name[423:427],
83: _Opcode_name[427:435],
84: _Opcode_name[435:443],
85: _Opcode_name[443:451],
86: _Opcode_name[451:460],
87: _Opcode_name[460:468],
88: _Opcode_name[468:475],
89: _Opcode_name[475:482],
90: _Opcode_name[482:489],
91: _Opcode_name[489:496],
92: _Opcode_name[496:503],
93: _Opcode_name[503:510],
94: _Opcode_name[510:517],
95: _Opcode_name[517:523],
96: _Opcode_name[523:530],
97: _Opcode_name[530:537],
98: _Opcode_name[537:544],
99: _Opcode_name[544:551],
100: _Opcode_name[551:558],
101: _Opcode_name[558:565],
102: _Opcode_name[565:572],
103: _Opcode_name[572:578],
104: _Opcode_name[578:584],
105: _Opcode_name[584:590],
106: _Opcode_name[590:596],
107: _Opcode_name[596:602],
108: _Opcode_name[602:608],
109: _Opcode_name[608:614],
110: _Opcode_name[614:620],
111: _Opcode_name[620:625],
112: _Opcode_name[625:631],
113: _Opcode_name[631:637],
114: _Opcode_name[637:643],
115: _Opcode_name[643:649],
116: _Opcode_name[649:655],
117: _Opcode_name[655:661],
118: _Opcode_name[661:667],
119: _Opcode_name[667:672],
120: _Opcode_name[672:678],
121: _Opcode_name[678:684],
122: _Opcode_name[684:690],
123: _Opcode_name[690:696],
124: _Opcode_name[696:702],
125: _Opcode_name[702:708],
126: _Opcode_name[708:714],
127: _Opcode_name[714:719],
128: _Opcode_name[719:725],
129: _Opcode_name[725:731],
130: _Opcode_name[731:737],
131: _Opcode_name[737:743],
132: _Opcode_name[743:749],
133: _Opcode_name[749:755],
134: _Opcode_name[755:761],
135: _Opcode_name[761:766],
136: _Opcode_name[766:775],
137: _Opcode_name[775:781],
139: _Opcode_name[781:784],
140: _Opcode_name[784:790],
141: _Opcode_name[790:794],
142: _Opcode_name[794:799],
144: _Opcode_name[799:805],
145: _Opcode_name[805:808],
146: _Opcode_name[808:810],
147: _Opcode_name[810:813],
151: _Opcode_name[813:818],
152: _Opcode_name[818:826],
153: _Opcode_name[826:830],
154: _Opcode_name[830:833],
155: _Opcode_name[833:839],
156: _Opcode_name[839:842],
157: _Opcode_name[842:845],
158: _Opcode_name[845:848],
159: _Opcode_name[848:851],
160: _Opcode_name[851:854],
161: _Opcode_name[854:857],
162: _Opcode_name[857:860],
168: _Opcode_name[860:863],
169: _Opcode_name[863:866],
170: _Opcode_name[866:869],
171: _Opcode_name[869:876],
172: _Opcode_name[876:882],
177: _Opcode_name[882:884],
179: _Opcode_name[884:892],
180: _Opcode_name[892:903],
181: _Opcode_name[903:905],
182: _Opcode_name[905:908],
183: _Opcode_name[908:910],
184: _Opcode_name[910:913],
185: _Opcode_name[913:916],
186: _Opcode_name[916:919],
187: _Opcode_name[919:925],
192: _Opcode_name[925:929],
193: _Opcode_name[929:935],
194: _Opcode_name[935:944],
195: _Opcode_name[944:952],
196: _Opcode_name[952:962],
197: _Opcode_name[962:972],
198: _Opcode_name[972:981],
200: _Opcode_name[981:987],
202: _Opcode_name[987:991],
203: _Opcode_name[991:997],
204: _Opcode_name[997:1001],
205: _Opcode_name[1001:1007],
206: _Opcode_name[1007:1015],
207: _Opcode_name[1015:1021],
208: _Opcode_name[1021:1028],
209: _Opcode_name[1028:1040],
210: _Opcode_name[1040:1046],
211: _Opcode_name[1046:1056],
216: _Opcode_name[1056:1062],
217: _Opcode_name[1062:1068],
219: _Opcode_name[1068:1075],
}
func (i Opcode) String() string {