/js/lib/Socket.IO-node/support/expresso/deps/jscoverage/js/jsopcode.tbl

http://github.com/onedayitwillmake/RealtimeMultiplayerNodeJs · Unknown · 557 lines · 484 code · 73 blank · 0 comment · 0 complexity · af99895a2417beba961a3e04da894e1a MD5 · raw file

  1. /* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*-
  2. * vim: set ts=8 sw=4 et tw=0 ft=C:
  3. *
  4. * ***** BEGIN LICENSE BLOCK *****
  5. * Version: MPL 1.1/GPL 2.0/LGPL 2.1
  6. *
  7. * The contents of this file are subject to the Mozilla Public License Version
  8. * 1.1 (the "License"); you may not use this file except in compliance with
  9. * the License. You may obtain a copy of the License at
  10. * http://www.mozilla.org/MPL/
  11. *
  12. * Software distributed under the License is distributed on an "AS IS" basis,
  13. * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
  14. * for the specific language governing rights and limitations under the
  15. * License.
  16. *
  17. * The Original Code is Mozilla Communicator client code, released
  18. * March 31, 1998.
  19. *
  20. * The Initial Developer of the Original Code is
  21. * Netscape Communications Corporation.
  22. * Portions created by the Initial Developer are Copyright (C) 1998
  23. * the Initial Developer. All Rights Reserved.
  24. *
  25. * Contributor(s):
  26. *
  27. * Alternatively, the contents of this file may be used under the terms of
  28. * either of the GNU General Public License Version 2 or later (the "GPL"),
  29. * or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
  30. * in which case the provisions of the GPL or the LGPL are applicable instead
  31. * of those above. If you wish to allow use of your version of this file only
  32. * under the terms of either the GPL or the LGPL, and not to allow others to
  33. * use your version of this file under the terms of the MPL, indicate your
  34. * decision by deleting the provisions above and replace them with the notice
  35. * and other provisions required by the GPL or the LGPL. If you do not delete
  36. * the provisions above, a recipient may use your version of this file under
  37. * the terms of any one of the MPL, the GPL or the LGPL.
  38. *
  39. * ***** END LICENSE BLOCK ***** */
  40. /*
  41. * JavaScript operation bytecodes. If you need to allocate a bytecode, look
  42. * for a name of the form JSOP_UNUSED* and claim it. Otherwise, always add at
  43. * the end of the table.
  44. *
  45. * Includers must define an OPDEF macro of the following form:
  46. *
  47. * #define OPDEF(op,val,name,image,length,nuses,ndefs,prec,format) ...
  48. *
  49. * Selected arguments can be expanded in initializers. The op argument is
  50. * expanded followed by comma in the JSOp enum (jsopcode.h), e.g. The value
  51. * field must be dense for now, because jsopcode.c uses an OPDEF() expansion
  52. * inside the js_CodeSpec[] initializer.
  53. *
  54. * Field Description
  55. * op Bytecode name, which is the JSOp enumerator name
  56. * value Bytecode value, which is the JSOp enumerator value
  57. * name C string containing name for disassembler
  58. * image C string containing "image" for pretty-printer, null if ugly
  59. * length Number of bytes including any immediate operands
  60. * nuses Number of stack slots consumed by bytecode, -1 if variadic
  61. * ndefs Number of stack slots produced by bytecode, -1 if variadic
  62. * prec Operator precedence, zero if not an operator
  63. * format Bytecode plus immediate operand encoding format
  64. *
  65. * Precedence Operators Opcodes
  66. * 1 yield w JSOP_YIELD
  67. * 2 , JSOP_POP with SRC_PCDELTA, JSOP_RETURN
  68. * 3 =, +=, etc. JSOP_SETNAME, etc. (all JOF_SET);
  69. * let (...) ... and JSOP_LEAVEBLOCKEXPR
  70. * 4 ?: JSOP_IFEQ, JSOP_IFEQX
  71. * 5 || JSOP_OR, JSOP_ORX
  72. * 6 && JSOP_AND, JSOP_ANDX
  73. * 7 | JSOP_BITOR
  74. * 8 ^ JSOP_BITXOR
  75. * 9 & JSOP_BITAND
  76. * 10 ==, !=, etc. JSOP_EQ, JSOP_NE, etc.
  77. * 11 <, in, etc. JSOP_LT, JSOP_IN, etc.
  78. * 12 <<, >>, >>> JSOP_LSH, JSOP_RSH, JSOP_URSH
  79. * 13 +, -, etc. JSOP_ADD, JSOP_SUB, etc.
  80. * 14 *, /, % JSOP_MUL, JSOP_DIV, JSOP_MOD
  81. * 15 !, ~, delete, etc. JSOP_NOT, JSOP_BITNOT, JSOP_DEL*, etc.
  82. * 16 3.14, 0, etc. JSOP_DOUBLE, JSOP_ZERO, etc.
  83. * 17 new JSOP_NEW
  84. * 18 x.y, f(), etc. JSOP_GETPROP, JSOP_CALL, etc.
  85. * 19 x, null, JSOP_NAME, JSOP_NULL, etc.;
  86. * function (...) ... and JSOP_ANONFUNOBJ, JSOP_NAMEDFUNOBJ
  87. *
  88. * The push-numeric-constant operators, JSOP_ZERO, JSOP_DOUBLE, etc., have
  89. * lower precedence than the member operators emitted for the . operator, to
  90. * cause the decompiler to parenthesize the . left operand, e.g. (0).foo.
  91. * Otherwise the . could be taken as a decimal point.
  92. *
  93. * Let expressions are "primary" when viewed from the left, but they eat up ops
  94. * to the right as if assignment expressions and therefore have precedence 3.
  95. * This makes the decompiler retain the parentheses in (let (a=0) x) ? a : 0
  96. * but omit the superfluous ones in (let (a=0) x), a.
  97. *
  98. * Yield expressions must be parenthesized even in comma-expressions and
  99. * argument lists, so they have the lowest precedence.
  100. *
  101. * This file is best viewed with 128 columns:
  102. 12345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678
  103. */
  104. /* legend: op val name image len use def prec format */
  105. /* Longstanding JavaScript bytecodes. */
  106. OPDEF(JSOP_INTERRUPT, 0, "interrupt", NULL, 1, 0, 0, 0, JOF_BYTE)
  107. OPDEF(JSOP_PUSH, 1, "push", NULL, 1, 0, 1, 0, JOF_BYTE)
  108. OPDEF(JSOP_POPV, 2, "popv", NULL, 1, 1, 0, 2, JOF_BYTE)
  109. OPDEF(JSOP_ENTERWITH, 3, "enterwith", NULL, 1, 1, 1, 0, JOF_BYTE|JOF_PARENHEAD)
  110. OPDEF(JSOP_LEAVEWITH, 4, "leavewith", NULL, 1, 1, 0, 0, JOF_BYTE)
  111. OPDEF(JSOP_RETURN, 5, "return", NULL, 1, 1, 0, 2, JOF_BYTE)
  112. OPDEF(JSOP_GOTO, 6, "goto", NULL, 3, 0, 0, 0, JOF_JUMP)
  113. OPDEF(JSOP_IFEQ, 7, "ifeq", NULL, 3, 1, 0, 4, JOF_JUMP|JOF_DETECTING)
  114. OPDEF(JSOP_IFNE, 8, "ifne", NULL, 3, 1, 0, 0, JOF_JUMP|JOF_PARENHEAD)
  115. /* Get the arguments object for the current, lightweight function activation. */
  116. OPDEF(JSOP_ARGUMENTS, 9, js_arguments_str, js_arguments_str, 1, 0, 1, 18, JOF_BYTE)
  117. /* ECMA-compliant for-in loop with argument or local loop control. */
  118. OPDEF(JSOP_FORARG, 10, "forarg", NULL, 3, 2, 2, 19, JOF_QARG|JOF_NAME|JOF_FOR)
  119. OPDEF(JSOP_FORLOCAL, 11, "forlocal", NULL, 3, 2, 2, 19, JOF_LOCAL|JOF_NAME|JOF_FOR)
  120. /* More longstanding bytecodes. */
  121. OPDEF(JSOP_DUP, 12, "dup", NULL, 1, 1, 2, 0, JOF_BYTE)
  122. OPDEF(JSOP_DUP2, 13, "dup2", NULL, 1, 2, 4, 0, JOF_BYTE)
  123. OPDEF(JSOP_SETCONST, 14, "setconst", NULL, 3, 1, 1, 3, JOF_ATOM|JOF_NAME|JOF_SET)
  124. OPDEF(JSOP_BITOR, 15, "bitor", "|", 1, 2, 1, 7, JOF_BYTE|JOF_LEFTASSOC|JOF_TMPSLOT2)
  125. OPDEF(JSOP_BITXOR, 16, "bitxor", "^", 1, 2, 1, 8, JOF_BYTE|JOF_LEFTASSOC|JOF_TMPSLOT2)
  126. OPDEF(JSOP_BITAND, 17, "bitand", "&", 1, 2, 1, 9, JOF_BYTE|JOF_LEFTASSOC|JOF_TMPSLOT2)
  127. OPDEF(JSOP_EQ, 18, "eq", "==", 1, 2, 1, 10, JOF_BYTE|JOF_LEFTASSOC|JOF_DETECTING)
  128. OPDEF(JSOP_NE, 19, "ne", "!=", 1, 2, 1, 10, JOF_BYTE|JOF_LEFTASSOC|JOF_DETECTING)
  129. OPDEF(JSOP_LT, 20, "lt", "<", 1, 2, 1, 11, JOF_BYTE|JOF_LEFTASSOC|JOF_TMPSLOT2)
  130. OPDEF(JSOP_LE, 21, "le", "<=", 1, 2, 1, 11, JOF_BYTE|JOF_LEFTASSOC|JOF_TMPSLOT2)
  131. OPDEF(JSOP_GT, 22, "gt", ">", 1, 2, 1, 11, JOF_BYTE|JOF_LEFTASSOC|JOF_TMPSLOT2)
  132. OPDEF(JSOP_GE, 23, "ge", ">=", 1, 2, 1, 11, JOF_BYTE|JOF_LEFTASSOC|JOF_TMPSLOT2)
  133. OPDEF(JSOP_LSH, 24, "lsh", "<<", 1, 2, 1, 12, JOF_BYTE|JOF_LEFTASSOC|JOF_TMPSLOT2)
  134. OPDEF(JSOP_RSH, 25, "rsh", ">>", 1, 2, 1, 12, JOF_BYTE|JOF_LEFTASSOC|JOF_TMPSLOT2)
  135. OPDEF(JSOP_URSH, 26, "ursh", ">>>", 1, 2, 1, 12, JOF_BYTE|JOF_LEFTASSOC|JOF_TMPSLOT2)
  136. OPDEF(JSOP_ADD, 27, "add", "+", 1, 2, 1, 13, JOF_BYTE|JOF_LEFTASSOC|JOF_TMPSLOT2)
  137. OPDEF(JSOP_SUB, 28, "sub", "-", 1, 2, 1, 13, JOF_BYTE|JOF_LEFTASSOC|JOF_TMPSLOT2)
  138. OPDEF(JSOP_MUL, 29, "mul", "*", 1, 2, 1, 14, JOF_BYTE|JOF_LEFTASSOC|JOF_TMPSLOT2)
  139. OPDEF(JSOP_DIV, 30, "div", "/", 1, 2, 1, 14, JOF_BYTE|JOF_LEFTASSOC|JOF_TMPSLOT2)
  140. OPDEF(JSOP_MOD, 31, "mod", "%", 1, 2, 1, 14, JOF_BYTE|JOF_LEFTASSOC|JOF_TMPSLOT2)
  141. OPDEF(JSOP_NOT, 32, "not", "!", 1, 1, 1, 15, JOF_BYTE|JOF_DETECTING)
  142. OPDEF(JSOP_BITNOT, 33, "bitnot", "~", 1, 1, 1, 15, JOF_BYTE)
  143. OPDEF(JSOP_NEG, 34, "neg", "- ", 1, 1, 1, 15, JOF_BYTE)
  144. OPDEF(JSOP_NEW, 35, js_new_str, NULL, 3, -1, 1, 17, JOF_UINT16|JOF_INVOKE)
  145. OPDEF(JSOP_DELNAME, 36, "delname", NULL, 3, 0, 1, 15, JOF_ATOM|JOF_NAME|JOF_DEL)
  146. OPDEF(JSOP_DELPROP, 37, "delprop", NULL, 3, 1, 1, 15, JOF_ATOM|JOF_PROP|JOF_DEL)
  147. OPDEF(JSOP_DELELEM, 38, "delelem", NULL, 1, 2, 1, 15, JOF_BYTE |JOF_ELEM|JOF_DEL)
  148. OPDEF(JSOP_TYPEOF, 39, js_typeof_str,NULL, 1, 1, 1, 15, JOF_BYTE|JOF_DETECTING)
  149. OPDEF(JSOP_VOID, 40, js_void_str, NULL, 1, 1, 1, 15, JOF_BYTE)
  150. OPDEF(JSOP_INCNAME, 41, "incname", NULL, 3, 0, 1, 15, JOF_ATOM|JOF_NAME|JOF_INC|JOF_TMPSLOT2)
  151. OPDEF(JSOP_INCPROP, 42, "incprop", NULL, 3, 1, 1, 15, JOF_ATOM|JOF_PROP|JOF_INC|JOF_TMPSLOT2)
  152. OPDEF(JSOP_INCELEM, 43, "incelem", NULL, 1, 2, 1, 15, JOF_BYTE |JOF_ELEM|JOF_INC|JOF_TMPSLOT2)
  153. OPDEF(JSOP_DECNAME, 44, "decname", NULL, 3, 0, 1, 15, JOF_ATOM|JOF_NAME|JOF_DEC|JOF_TMPSLOT2)
  154. OPDEF(JSOP_DECPROP, 45, "decprop", NULL, 3, 1, 1, 15, JOF_ATOM|JOF_PROP|JOF_DEC|JOF_TMPSLOT2)
  155. OPDEF(JSOP_DECELEM, 46, "decelem", NULL, 1, 2, 1, 15, JOF_BYTE |JOF_ELEM|JOF_DEC|JOF_TMPSLOT2)
  156. OPDEF(JSOP_NAMEINC, 47, "nameinc", NULL, 3, 0, 1, 15, JOF_ATOM|JOF_NAME|JOF_INC|JOF_POST|JOF_TMPSLOT2)
  157. OPDEF(JSOP_PROPINC, 48, "propinc", NULL, 3, 1, 1, 15, JOF_ATOM|JOF_PROP|JOF_INC|JOF_POST|JOF_TMPSLOT2)
  158. OPDEF(JSOP_ELEMINC, 49, "eleminc", NULL, 1, 2, 1, 15, JOF_BYTE |JOF_ELEM|JOF_INC|JOF_POST|JOF_TMPSLOT2)
  159. OPDEF(JSOP_NAMEDEC, 50, "namedec", NULL, 3, 0, 1, 15, JOF_ATOM|JOF_NAME|JOF_DEC|JOF_POST|JOF_TMPSLOT2)
  160. OPDEF(JSOP_PROPDEC, 51, "propdec", NULL, 3, 1, 1, 15, JOF_ATOM|JOF_PROP|JOF_DEC|JOF_POST|JOF_TMPSLOT2)
  161. OPDEF(JSOP_ELEMDEC, 52, "elemdec", NULL, 1, 2, 1, 15, JOF_BYTE |JOF_ELEM|JOF_DEC|JOF_POST|JOF_TMPSLOT2)
  162. OPDEF(JSOP_GETPROP, 53, "getprop", NULL, 3, 1, 1, 18, JOF_ATOM|JOF_PROP)
  163. OPDEF(JSOP_SETPROP, 54, "setprop", NULL, 3, 2, 1, 3, JOF_ATOM|JOF_PROP|JOF_SET|JOF_DETECTING)
  164. OPDEF(JSOP_GETELEM, 55, "getelem", NULL, 1, 2, 1, 18, JOF_BYTE |JOF_ELEM|JOF_LEFTASSOC)
  165. OPDEF(JSOP_SETELEM, 56, "setelem", NULL, 1, 3, 1, 3, JOF_BYTE |JOF_ELEM|JOF_SET|JOF_DETECTING)
  166. OPDEF(JSOP_CALLNAME, 57, "callname", NULL, 3, 0, 2, 19, JOF_ATOM|JOF_NAME|JOF_CALLOP)
  167. OPDEF(JSOP_CALL, 58, "call", NULL, 3, -1, 1, 18, JOF_UINT16|JOF_INVOKE)
  168. OPDEF(JSOP_NAME, 59, "name", NULL, 3, 0, 1, 19, JOF_ATOM|JOF_NAME)
  169. OPDEF(JSOP_DOUBLE, 60, "double", NULL, 3, 0, 1, 16, JOF_ATOM)
  170. OPDEF(JSOP_STRING, 61, "string", NULL, 3, 0, 1, 19, JOF_ATOM)
  171. OPDEF(JSOP_ZERO, 62, "zero", "0", 1, 0, 1, 16, JOF_BYTE)
  172. OPDEF(JSOP_ONE, 63, "one", "1", 1, 0, 1, 16, JOF_BYTE)
  173. OPDEF(JSOP_NULL, 64, js_null_str, js_null_str, 1, 0, 1, 19, JOF_BYTE)
  174. OPDEF(JSOP_THIS, 65, js_this_str, js_this_str, 1, 0, 1, 19, JOF_BYTE)
  175. OPDEF(JSOP_FALSE, 66, js_false_str, js_false_str, 1, 0, 1, 19, JOF_BYTE)
  176. OPDEF(JSOP_TRUE, 67, js_true_str, js_true_str, 1, 0, 1, 19, JOF_BYTE)
  177. OPDEF(JSOP_OR, 68, "or", NULL, 3, 1, 0, 5, JOF_JUMP|JOF_DETECTING|JOF_LEFTASSOC)
  178. OPDEF(JSOP_AND, 69, "and", NULL, 3, 1, 0, 6, JOF_JUMP|JOF_DETECTING|JOF_LEFTASSOC)
  179. /* The switch bytecodes have variable length. */
  180. OPDEF(JSOP_TABLESWITCH, 70, "tableswitch", NULL, -1, 1, 0, 0, JOF_TABLESWITCH|JOF_DETECTING|JOF_PARENHEAD)
  181. OPDEF(JSOP_LOOKUPSWITCH, 71, "lookupswitch", NULL, -1, 1, 0, 0, JOF_LOOKUPSWITCH|JOF_DETECTING|JOF_PARENHEAD)
  182. /* New, infallible/transitive identity ops. */
  183. OPDEF(JSOP_STRICTEQ, 72, "stricteq", "===", 1, 2, 1, 10, JOF_BYTE|JOF_DETECTING|JOF_LEFTASSOC)
  184. OPDEF(JSOP_STRICTNE, 73, "strictne", "!==", 1, 2, 1, 10, JOF_BYTE|JOF_DETECTING|JOF_LEFTASSOC)
  185. /* Variant of JSOP_NULL for default (global) |this| parameter pushing. */
  186. OPDEF(JSOP_NULLTHIS, 74, js_null_str, js_null_str, 1, 0, 1, 19, JOF_BYTE)
  187. /*
  188. * JSOP_ITER sets up a for-in or for-each-in loop using the JSITER_* flag bits
  189. * in this op's uint8 immediate operand. It replaces the top of stack object
  190. * with an iterator for that object, and pushes a slot used by JSOP_NEXTITER.
  191. *
  192. * JSOP_NEXTITER stores the next iterated value in the top of stack slot which
  193. * was allocated by JSOP_ITER and pushes true, or stores JSVAL_HOLE and pushes
  194. * false. It is followed immediately by JSOP_IFNE{,X}.
  195. *
  196. * JSOP_ENDITER cleans up after the loop. It uses the slot above the iterator
  197. * for temporary GC rooting.
  198. */
  199. OPDEF(JSOP_ITER, 75, "iter", NULL, 2, 1, 2, 0, JOF_UINT8)
  200. OPDEF(JSOP_NEXTITER, 76, "nextiter", NULL, 1, 2, 3, 0, JOF_BYTE)
  201. OPDEF(JSOP_ENDITER, 77, "enditer", NULL, 1, 2, 0, 0, JOF_BYTE)
  202. OPDEF(JSOP_APPLY, 78, "apply", NULL, 3, -1, 1, 18, JOF_UINT16|JOF_INVOKE)
  203. OPDEF(JSOP_SWAP, 79, "swap", NULL, 1, 2, 2, 0, JOF_BYTE)
  204. /* Push object literal. */
  205. OPDEF(JSOP_OBJECT, 80, "object", NULL, 3, 0, 1, 19, JOF_OBJECT)
  206. /* Pop value and discard it. */
  207. OPDEF(JSOP_POP, 81, "pop", NULL, 1, 1, 0, 2, JOF_BYTE)
  208. /* Convert value to number, for unary +. */
  209. OPDEF(JSOP_POS, 82, "pos", "+ ", 1, 1, 1, 15, JOF_BYTE)
  210. /* Trap into debugger for breakpoint, etc. */
  211. OPDEF(JSOP_TRAP, 83, "trap", NULL, 1, 0, 0, 0, JOF_BYTE)
  212. /* Fast get/set ops for function arguments and local variables. */
  213. OPDEF(JSOP_GETARG, 84, "getarg", NULL, 3, 0, 1, 19, JOF_QARG |JOF_NAME)
  214. OPDEF(JSOP_SETARG, 85, "setarg", NULL, 3, 1, 1, 3, JOF_QARG |JOF_NAME|JOF_SET)
  215. OPDEF(JSOP_GETLOCAL, 86,"getlocal", NULL, 3, 0, 1, 19, JOF_LOCAL|JOF_NAME)
  216. OPDEF(JSOP_SETLOCAL, 87,"setlocal", NULL, 3, 1, 1, 3, JOF_LOCAL|JOF_NAME|JOF_SET|JOF_DETECTING)
  217. /* Push unsigned 16-bit int constant. */
  218. OPDEF(JSOP_UINT16, 88, "uint16", NULL, 3, 0, 1, 16, JOF_UINT16)
  219. /* Object and array literal support. */
  220. OPDEF(JSOP_NEWINIT, 89, "newinit", NULL, 2, 0, 1, 19, JOF_INT8)
  221. OPDEF(JSOP_ENDINIT, 90, "endinit", NULL, 1, 0, 0, 19, JOF_BYTE)
  222. OPDEF(JSOP_INITPROP, 91, "initprop", NULL, 3, 1, 0, 3, JOF_ATOM|JOF_PROP|JOF_SET|JOF_DETECTING)
  223. OPDEF(JSOP_INITELEM, 92, "initelem", NULL, 1, 2, 0, 3, JOF_BYTE |JOF_ELEM|JOF_SET|JOF_DETECTING)
  224. OPDEF(JSOP_DEFSHARP, 93, "defsharp", NULL, 3, 0, 0, 0, JOF_UINT16)
  225. OPDEF(JSOP_USESHARP, 94, "usesharp", NULL, 3, 0, 1, 0, JOF_UINT16)
  226. /* Fast inc/dec ops for args and locals. */
  227. OPDEF(JSOP_INCARG, 95, "incarg", NULL, 3, 0, 1, 15, JOF_QARG |JOF_NAME|JOF_INC)
  228. OPDEF(JSOP_DECARG, 96, "decarg", NULL, 3, 0, 1, 15, JOF_QARG |JOF_NAME|JOF_DEC)
  229. OPDEF(JSOP_ARGINC, 97, "arginc", NULL, 3, 0, 1, 15, JOF_QARG |JOF_NAME|JOF_INC|JOF_POST)
  230. OPDEF(JSOP_ARGDEC, 98, "argdec", NULL, 3, 0, 1, 15, JOF_QARG |JOF_NAME|JOF_DEC|JOF_POST)
  231. OPDEF(JSOP_INCLOCAL, 99, "inclocal", NULL, 3, 0, 1, 15, JOF_LOCAL|JOF_NAME|JOF_INC)
  232. OPDEF(JSOP_DECLOCAL, 100,"declocal", NULL, 3, 0, 1, 15, JOF_LOCAL|JOF_NAME|JOF_DEC)
  233. OPDEF(JSOP_LOCALINC, 101,"localinc", NULL, 3, 0, 1, 15, JOF_LOCAL|JOF_NAME|JOF_INC|JOF_POST)
  234. OPDEF(JSOP_LOCALDEC, 102,"localdec", NULL, 3, 0, 1, 15, JOF_LOCAL|JOF_NAME|JOF_DEC|JOF_POST)
  235. OPDEF(JSOP_IMACOP, 103,"imacop", NULL, 1, 0, 0, 0, JOF_BYTE)
  236. /* ECMA-compliant for/in ops. */
  237. OPDEF(JSOP_FORNAME, 104,"forname", NULL, 3, 2, 2, 19, JOF_ATOM|JOF_NAME|JOF_FOR)
  238. OPDEF(JSOP_FORPROP, 105,"forprop", NULL, 3, 3, 2, 18, JOF_ATOM|JOF_PROP|JOF_FOR)
  239. OPDEF(JSOP_FORELEM, 106,"forelem", NULL, 1, 2, 3, 18, JOF_BYTE |JOF_ELEM|JOF_FOR)
  240. OPDEF(JSOP_POPN, 107,"popn", NULL, 3, -1, 0, 0, JOF_UINT16)
  241. /* ECMA-compliant assignment ops. */
  242. OPDEF(JSOP_BINDNAME, 108,"bindname", NULL, 3, 0, 1, 0, JOF_ATOM|JOF_NAME|JOF_SET)
  243. OPDEF(JSOP_SETNAME, 109,"setname", NULL, 3, 2, 1, 3, JOF_ATOM|JOF_NAME|JOF_SET|JOF_DETECTING)
  244. /* Exception handling ops. */
  245. OPDEF(JSOP_THROW, 110,js_throw_str, NULL, 1, 1, 0, 0, JOF_BYTE)
  246. /* 'in' and 'instanceof' ops. */
  247. OPDEF(JSOP_IN, 111,js_in_str, js_in_str, 1, 2, 1, 11, JOF_BYTE|JOF_LEFTASSOC)
  248. OPDEF(JSOP_INSTANCEOF,112,js_instanceof_str,js_instanceof_str,1,2,1,11,JOF_BYTE|JOF_LEFTASSOC)
  249. /* debugger op */
  250. OPDEF(JSOP_DEBUGGER, 113,"debugger", NULL, 1, 0, 0, 0, JOF_BYTE)
  251. /* gosub/retsub for finally handling */
  252. OPDEF(JSOP_GOSUB, 114,"gosub", NULL, 3, 0, 0, 0, JOF_JUMP)
  253. OPDEF(JSOP_RETSUB, 115,"retsub", NULL, 1, 2, 0, 0, JOF_BYTE)
  254. /* More exception handling ops. */
  255. OPDEF(JSOP_EXCEPTION, 116,"exception", NULL, 1, 0, 1, 0, JOF_BYTE)
  256. /* Embedded lineno to speedup pc->line mapping. */
  257. OPDEF(JSOP_LINENO, 117,"lineno", NULL, 3, 0, 0, 0, JOF_UINT16)
  258. /*
  259. * ECMA-compliant switch statement ops.
  260. * CONDSWITCH is a decompilable NOP; CASE is ===, POP, jump if true, re-push
  261. * lval if false; and DEFAULT is POP lval and GOTO.
  262. */
  263. OPDEF(JSOP_CONDSWITCH,118,"condswitch", NULL, 1, 0, 0, 0, JOF_BYTE|JOF_PARENHEAD)
  264. OPDEF(JSOP_CASE, 119,"case", NULL, 3, 2, 1, 0, JOF_JUMP)
  265. OPDEF(JSOP_DEFAULT, 120,"default", NULL, 3, 1, 0, 0, JOF_JUMP)
  266. /*
  267. * ECMA-compliant call to eval op
  268. */
  269. OPDEF(JSOP_EVAL, 121,"eval", NULL, 3, -1, 1, 18, JOF_UINT16|JOF_INVOKE)
  270. /*
  271. * ECMA-compliant helper for 'for (x[i] in o)' loops.
  272. */
  273. OPDEF(JSOP_ENUMELEM, 122,"enumelem", NULL, 1, 3, 0, 3, JOF_BYTE |JOF_SET)
  274. /*
  275. * Getter and setter prefix bytecodes. These modify the next bytecode, either
  276. * an assignment or a property initializer code, which then defines a property
  277. * getter or setter.
  278. */
  279. OPDEF(JSOP_GETTER, 123,js_getter_str,NULL, 1, 0, 0, 0, JOF_BYTE)
  280. OPDEF(JSOP_SETTER, 124,js_setter_str,NULL, 1, 0, 0, 0, JOF_BYTE)
  281. /*
  282. * Prolog bytecodes for defining function, var, and const names.
  283. */
  284. OPDEF(JSOP_DEFFUN, 125,"deffun", NULL, 3, 0, 0, 0, JOF_OBJECT|JOF_DECLARING)
  285. OPDEF(JSOP_DEFCONST, 126,"defconst", NULL, 3, 0, 0, 0, JOF_ATOM|JOF_DECLARING)
  286. OPDEF(JSOP_DEFVAR, 127,"defvar", NULL, 3, 0, 0, 0, JOF_ATOM|JOF_DECLARING)
  287. /* Auto-clone (if needed due to re-parenting) and push an anonymous function. */
  288. OPDEF(JSOP_ANONFUNOBJ, 128, "anonfunobj", NULL, 3, 0, 1, 19, JOF_OBJECT)
  289. /* ECMA ed. 3 named function expression. */
  290. OPDEF(JSOP_NAMEDFUNOBJ, 129, "namedfunobj", NULL, 3, 0, 1, 19, JOF_OBJECT)
  291. /*
  292. * Like JSOP_SETLOCAL, but specialized to avoid requiring JSOP_POP immediately
  293. * after to throw away the exception value.
  294. */
  295. OPDEF(JSOP_SETLOCALPOP, 130, "setlocalpop", NULL, 3, 1, 0, 3, JOF_LOCAL|JOF_NAME|JOF_SET)
  296. /* Parenthesization opcode to help the decompiler. */
  297. OPDEF(JSOP_UNUSED131, 131, "unused131", NULL, 1, 0, 0, 0, JOF_BYTE)
  298. /*
  299. * Host object extension: given 'o.item(i) = j', the left-hand side compiles
  300. * JSOP_SETCALL, rather than JSOP_CALL.
  301. */
  302. OPDEF(JSOP_SETCALL, 132, "setcall", NULL, 3, -1, 2, 18, JOF_UINT16|JOF_SET)
  303. /*
  304. * Exception handling no-op, for more economical byte-coding than SRC_TRYFIN
  305. * srcnote-annotated JSOP_NOPs and to simply stack balance handling.
  306. */
  307. OPDEF(JSOP_TRY, 133,"try", NULL, 1, 0, 0, 0, JOF_BYTE)
  308. OPDEF(JSOP_FINALLY, 134,"finally", NULL, 1, 0, 2, 0, JOF_BYTE)
  309. /*
  310. * Generic nop for the decompiler.
  311. */
  312. OPDEF(JSOP_NOP, 135,"nop", NULL, 1, 0, 0, 0, JOF_BYTE)
  313. /*
  314. * Bytecodes that avoid making an arguments object in most cases:
  315. * JSOP_ARGSUB gets arguments[i] from fp->argv, iff i is in [0, fp->argc-1].
  316. * JSOP_ARGCNT returns fp->argc.
  317. */
  318. OPDEF(JSOP_ARGSUB, 136,"argsub", NULL, 3, 0, 1, 18, JOF_QARG |JOF_NAME)
  319. OPDEF(JSOP_ARGCNT, 137,"argcnt", NULL, 1, 0, 1, 18, JOF_BYTE)
  320. /*
  321. * Define a local function object as a local variable.
  322. * The local variable's slot number is the first immediate two-byte operand.
  323. * The function object's atom index is the second immediate operand.
  324. */
  325. OPDEF(JSOP_DEFLOCALFUN, 138,"deflocalfun",NULL, 5, 0, 0, 0, JOF_SLOTOBJECT|JOF_DECLARING)
  326. /* Extended jumps. */
  327. OPDEF(JSOP_GOTOX, 139,"gotox", NULL, 5, 0, 0, 0, JOF_JUMPX)
  328. OPDEF(JSOP_IFEQX, 140,"ifeqx", NULL, 5, 1, 0, 4, JOF_JUMPX|JOF_DETECTING)
  329. OPDEF(JSOP_IFNEX, 141,"ifnex", NULL, 5, 1, 0, 0, JOF_JUMPX|JOF_PARENHEAD)
  330. OPDEF(JSOP_ORX, 142,"orx", NULL, 5, 1, 0, 5, JOF_JUMPX|JOF_DETECTING)
  331. OPDEF(JSOP_ANDX, 143,"andx", NULL, 5, 1, 0, 6, JOF_JUMPX|JOF_DETECTING)
  332. OPDEF(JSOP_GOSUBX, 144,"gosubx", NULL, 5, 0, 0, 0, JOF_JUMPX)
  333. OPDEF(JSOP_CASEX, 145,"casex", NULL, 5, 2, 1, 0, JOF_JUMPX)
  334. OPDEF(JSOP_DEFAULTX, 146,"defaultx", NULL, 5, 1, 0, 0, JOF_JUMPX)
  335. OPDEF(JSOP_TABLESWITCHX, 147,"tableswitchx",NULL, -1, 1, 0, 0, JOF_TABLESWITCHX|JOF_DETECTING|JOF_PARENHEAD)
  336. OPDEF(JSOP_LOOKUPSWITCHX, 148,"lookupswitchx",NULL, -1, 1, 0, 0, JOF_LOOKUPSWITCHX|JOF_DETECTING|JOF_PARENHEAD)
  337. /* Placeholders for a real jump opcode set during backpatch chain fixup. */
  338. OPDEF(JSOP_BACKPATCH, 149,"backpatch",NULL, 3, 0, 0, 0, JOF_JUMP|JOF_BACKPATCH)
  339. OPDEF(JSOP_BACKPATCH_POP, 150,"backpatch_pop",NULL, 3, 1, 0, 0, JOF_JUMP|JOF_BACKPATCH)
  340. /* Set pending exception from the stack, to trigger rethrow. */
  341. OPDEF(JSOP_THROWING, 151,"throwing", NULL, 1, 1, 0, 0, JOF_BYTE)
  342. /* Set and get return value pseudo-register in stack frame. */
  343. OPDEF(JSOP_SETRVAL, 152,"setrval", NULL, 1, 1, 0, 2, JOF_BYTE)
  344. OPDEF(JSOP_RETRVAL, 153,"retrval", NULL, 1, 0, 0, 0, JOF_BYTE)
  345. /* Optimized global variable ops (we don't bother doing a JSOP_FORGVAR op). */
  346. OPDEF(JSOP_GETGVAR, 154,"getgvar", NULL, 3, 0, 1, 19, JOF_ATOM|JOF_NAME)
  347. OPDEF(JSOP_SETGVAR, 155,"setgvar", NULL, 3, 1, 1, 3, JOF_ATOM|JOF_NAME|JOF_SET|JOF_DETECTING)
  348. OPDEF(JSOP_INCGVAR, 156,"incgvar", NULL, 3, 0, 1, 15, JOF_ATOM|JOF_NAME|JOF_INC|JOF_TMPSLOT2)
  349. OPDEF(JSOP_DECGVAR, 157,"decgvar", NULL, 3, 0, 1, 15, JOF_ATOM|JOF_NAME|JOF_DEC|JOF_TMPSLOT2)
  350. OPDEF(JSOP_GVARINC, 158,"gvarinc", NULL, 3, 0, 1, 15, JOF_ATOM|JOF_NAME|JOF_INC|JOF_POST|JOF_TMPSLOT2)
  351. OPDEF(JSOP_GVARDEC, 159,"gvardec", NULL, 3, 0, 1, 15, JOF_ATOM|JOF_NAME|JOF_DEC|JOF_POST|JOF_TMPSLOT2)
  352. /* Regular expression literal requiring special "fork on exec" handling. */
  353. OPDEF(JSOP_REGEXP, 160,"regexp", NULL, 3, 0, 1, 19, JOF_REGEXP)
  354. /* XML (ECMA-357, a.k.a. "E4X") support. */
  355. OPDEF(JSOP_DEFXMLNS, 161,"defxmlns", NULL, 1, 1, 0, 0, JOF_BYTE)
  356. OPDEF(JSOP_ANYNAME, 162,"anyname", NULL, 1, 0, 1, 19, JOF_BYTE|JOF_XMLNAME)
  357. OPDEF(JSOP_QNAMEPART, 163,"qnamepart", NULL, 3, 0, 1, 19, JOF_ATOM|JOF_XMLNAME)
  358. OPDEF(JSOP_QNAMECONST, 164,"qnameconst", NULL, 3, 1, 1, 19, JOF_ATOM|JOF_XMLNAME)
  359. OPDEF(JSOP_QNAME, 165,"qname", NULL, 1, 2, 1, 0, JOF_BYTE|JOF_XMLNAME)
  360. OPDEF(JSOP_TOATTRNAME, 166,"toattrname", NULL, 1, 1, 1, 19, JOF_BYTE|JOF_XMLNAME)
  361. OPDEF(JSOP_TOATTRVAL, 167,"toattrval", NULL, 1, 1, 1, 19, JOF_BYTE)
  362. OPDEF(JSOP_ADDATTRNAME, 168,"addattrname",NULL, 1, 2, 1, 13, JOF_BYTE)
  363. OPDEF(JSOP_ADDATTRVAL, 169,"addattrval", NULL, 1, 2, 1, 13, JOF_BYTE)
  364. OPDEF(JSOP_BINDXMLNAME, 170,"bindxmlname",NULL, 1, 1, 2, 3, JOF_BYTE|JOF_SET)
  365. OPDEF(JSOP_SETXMLNAME, 171,"setxmlname", NULL, 1, 3, 1, 3, JOF_BYTE|JOF_SET|JOF_DETECTING)
  366. OPDEF(JSOP_XMLNAME, 172,"xmlname", NULL, 1, 1, 1, 19, JOF_BYTE)
  367. OPDEF(JSOP_DESCENDANTS, 173,"descendants",NULL, 1, 2, 1, 18, JOF_BYTE)
  368. OPDEF(JSOP_FILTER, 174,"filter", NULL, 3, 1, 1, 0, JOF_JUMP)
  369. OPDEF(JSOP_ENDFILTER, 175,"endfilter", NULL, 3, 2, 1, 18, JOF_JUMP)
  370. OPDEF(JSOP_TOXML, 176,"toxml", NULL, 1, 1, 1, 19, JOF_BYTE)
  371. OPDEF(JSOP_TOXMLLIST, 177,"toxmllist", NULL, 1, 1, 1, 19, JOF_BYTE)
  372. OPDEF(JSOP_XMLTAGEXPR, 178,"xmltagexpr", NULL, 1, 1, 1, 0, JOF_BYTE)
  373. OPDEF(JSOP_XMLELTEXPR, 179,"xmleltexpr", NULL, 1, 1, 1, 0, JOF_BYTE)
  374. OPDEF(JSOP_XMLOBJECT, 180,"xmlobject", NULL, 3, 0, 1, 19, JOF_OBJECT)
  375. OPDEF(JSOP_XMLCDATA, 181,"xmlcdata", NULL, 3, 0, 1, 19, JOF_ATOM)
  376. OPDEF(JSOP_XMLCOMMENT, 182,"xmlcomment", NULL, 3, 0, 1, 19, JOF_ATOM)
  377. OPDEF(JSOP_XMLPI, 183,"xmlpi", NULL, 3, 1, 1, 19, JOF_ATOM)
  378. OPDEF(JSOP_CALLPROP, 184,"callprop", NULL, 3, 1, 2, 18, JOF_ATOM|JOF_PROP|JOF_CALLOP)
  379. OPDEF(JSOP_GETFUNNS, 185,"getfunns", NULL, 1, 0, 1, 19, JOF_BYTE)
  380. /*
  381. * Get a display (free) variable from the closure's reserved slots.
  382. */
  383. OPDEF(JSOP_GETUPVAR, 186,"getupvar", NULL, 3, 0, 1, 19, JOF_UINT16|JOF_NAME)
  384. OPDEF(JSOP_DELDESC, 187,"deldesc", NULL, 1, 2, 1, 15, JOF_BYTE|JOF_ELEM|JOF_DEL)
  385. /*
  386. * Opcode to hold 24-bit immediate integer operands.
  387. */
  388. OPDEF(JSOP_UINT24, 188,"uint24", NULL, 4, 0, 1, 16, JOF_UINT24)
  389. /*
  390. * Opcodes to allow 24-bit atom or object indexes. Whenever an index exceeds
  391. * the 16-bit limit, the index-accessing bytecode must be bracketed by
  392. * JSOP_INDEXBASE and JSOP_RESETBASE to provide the upper bits of the index.
  393. * See jsemit.c, EmitIndexOp.
  394. */
  395. OPDEF(JSOP_INDEXBASE, 189,"atombase", NULL, 2, 0, 0, 0, JOF_UINT8|JOF_INDEXBASE)
  396. OPDEF(JSOP_RESETBASE, 190,"resetbase", NULL, 1, 0, 0, 0, JOF_BYTE)
  397. OPDEF(JSOP_RESETBASE0, 191,"resetbase0", NULL, 1, 0, 0, 0, JOF_BYTE)
  398. /*
  399. * Opcodes to help the decompiler deal with XML.
  400. */
  401. OPDEF(JSOP_STARTXML, 192,"startxml", NULL, 1, 0, 0, 0, JOF_BYTE)
  402. OPDEF(JSOP_STARTXMLEXPR, 193,"startxmlexpr",NULL, 1, 0, 0, 0, JOF_BYTE)
  403. OPDEF(JSOP_CALLELEM, 194, "callelem", NULL, 1, 2, 2, 18, JOF_BYTE |JOF_ELEM|JOF_LEFTASSOC|JOF_CALLOP)
  404. /*
  405. * Stop interpretation, emitted at end of script to save the threaded bytecode
  406. * interpreter an extra branch test on every DO_NEXT_OP (see jsinterp.c).
  407. */
  408. OPDEF(JSOP_STOP, 195,"stop", NULL, 1, 0, 0, 0, JOF_BYTE)
  409. /*
  410. * Get an extant property value, throwing ReferenceError if the identified
  411. * property does not exist.
  412. */
  413. OPDEF(JSOP_GETXPROP, 196,"getxprop", NULL, 3, 1, 1, 18, JOF_ATOM|JOF_PROP)
  414. OPDEF(JSOP_CALLXMLNAME, 197, "callxmlname", NULL, 1, 1, 2, 19, JOF_BYTE|JOF_CALLOP)
  415. /*
  416. * Specialized JSOP_TYPEOF to avoid reporting undefined for typeof(0, undef).
  417. */
  418. OPDEF(JSOP_TYPEOFEXPR, 198,"typeofexpr", NULL, 1, 1, 1, 15, JOF_BYTE|JOF_DETECTING)
  419. /*
  420. * Block-local scope support.
  421. */
  422. OPDEF(JSOP_ENTERBLOCK, 199,"enterblock", NULL, 3, 0, -1, 0, JOF_OBJECT)
  423. OPDEF(JSOP_LEAVEBLOCK, 200,"leaveblock", NULL, 3, -1, 0, 0, JOF_UINT16)
  424. OPDEF(JSOP_UNUSED201, 201,"unused201", NULL, 1, 0, 0, 0, JOF_BYTE)
  425. OPDEF(JSOP_UNUSED202, 202,"unused202", NULL, 1, 0, 0, 0, JOF_BYTE)
  426. OPDEF(JSOP_UNUSED203, 203,"unused203", NULL, 1, 0, 0, 0, JOF_BYTE)
  427. OPDEF(JSOP_UNUSED204, 204,"unused204", NULL, 1, 0, 0, 0, JOF_BYTE)
  428. OPDEF(JSOP_UNUSED205, 205,"unused205", NULL, 1, 0, 0, 0, JOF_BYTE)
  429. OPDEF(JSOP_UNUSED206, 206,"unused206", NULL, 1, 0, 0, 0, JOF_BYTE)
  430. OPDEF(JSOP_UNUSED207, 207,"unused207", NULL, 1, 0, 0, 0, JOF_BYTE)
  431. OPDEF(JSOP_UNUSED208, 208,"unused208", NULL, 1, 0, 0, 0, JOF_BYTE)
  432. OPDEF(JSOP_UNUSED209, 209,"unused209", NULL, 1, 0, 0, 0, JOF_BYTE)
  433. /*
  434. * Generator and array comprehension support.
  435. */
  436. OPDEF(JSOP_GENERATOR, 210,"generator", NULL, 1, 0, 0, 0, JOF_BYTE)
  437. OPDEF(JSOP_YIELD, 211,"yield", NULL, 1, 1, 1, 1, JOF_BYTE)
  438. OPDEF(JSOP_ARRAYPUSH, 212,"arraypush", NULL, 3, 1, 0, 3, JOF_LOCAL)
  439. /*
  440. * In the forthcoming great opcode reorg, this should go next to JSOP_GETUPVAR.
  441. */
  442. OPDEF(JSOP_CALLUPVAR, 213, "callupvar", NULL, 3, 0, 2, 19, JOF_UINT16|JOF_NAME|JOF_CALLOP)
  443. /*
  444. * Variant of JSOP_ENUMELEM for destructuring const (const [a, b] = ...).
  445. */
  446. OPDEF(JSOP_ENUMCONSTELEM, 214,"enumconstelem",NULL, 1, 3, 0, 3, JOF_BYTE|JOF_SET)
  447. /*
  448. * Variant of JSOP_LEAVEBLOCK has a result on the stack above the locals,
  449. * which must be moved down when the block pops.
  450. */
  451. OPDEF(JSOP_LEAVEBLOCKEXPR,215,"leaveblockexpr",NULL, 3, -1, 1, 3, JOF_UINT16)
  452. /*
  453. * Optimize common JSOP_{THIS,GET{ARG,LOCAL}} -> JSOP_GETPROP cliches.
  454. */
  455. OPDEF(JSOP_GETTHISPROP, 216,"getthisprop", NULL, 3, 0, 1, 18, JOF_ATOM|JOF_VARPROP)
  456. OPDEF(JSOP_GETARGPROP, 217,"getargprop", NULL, 5, 0, 1, 18, JOF_SLOTATOM|JOF_VARPROP)
  457. OPDEF(JSOP_GETLOCALPROP, 218,"getlocalprop", NULL, 5, 0, 1, 18, JOF_SLOTATOM|JOF_VARPROP)
  458. OPDEF(JSOP_UNUSED219, 219,"unused219", NULL, 1, 0, 0, 0, JOF_BYTE)
  459. /*
  460. * Optimize atom segments 1-3. These must be followed by JSOP_RESETBASE0 after
  461. * the opcode that they prefix.
  462. */
  463. OPDEF(JSOP_INDEXBASE1, 220,"atombase1", NULL, 1, 0, 0, 0, JOF_BYTE |JOF_INDEXBASE)
  464. OPDEF(JSOP_INDEXBASE2, 221,"atombase2", NULL, 1, 0, 0, 0, JOF_BYTE |JOF_INDEXBASE)
  465. OPDEF(JSOP_INDEXBASE3, 222,"atombase3", NULL, 1, 0, 0, 0, JOF_BYTE |JOF_INDEXBASE)
  466. OPDEF(JSOP_CALLGVAR, 223, "callgvar", NULL, 3, 0, 2, 19, JOF_ATOM|JOF_NAME|JOF_CALLOP)
  467. OPDEF(JSOP_CALLLOCAL, 224, "calllocal", NULL, 3, 0, 2, 19, JOF_LOCAL|JOF_NAME|JOF_CALLOP)
  468. OPDEF(JSOP_CALLARG, 225, "callarg", NULL, 3, 0, 2, 19, JOF_QARG |JOF_NAME|JOF_CALLOP)
  469. OPDEF(JSOP_UNUSED226, 226, "unused226", NULL, 1, 0, 1, 1, JOF_BYTE)
  470. /*
  471. * Opcodes to hold 8-bit and 32-bit immediate integer operands.
  472. */
  473. OPDEF(JSOP_INT8, 227, "int8", NULL, 2, 0, 1, 16, JOF_INT8)
  474. OPDEF(JSOP_INT32, 228, "int32", NULL, 5, 0, 1, 16, JOF_INT32)
  475. /*
  476. * Get the value of the 'length' property from a stacked object.
  477. */
  478. OPDEF(JSOP_LENGTH, 229, "length", NULL, 1, 1, 1, 18, JOF_BYTE|JOF_PROP)
  479. /*
  480. * JSOP_NEWARRAY optimizes array literal evaluation using the interpreter stack.
  481. * JSOP_HOLE pushes a JSVAL_HOLE (used with JSOP_NEWINIT and JSOP_NEWARRAY).
  482. */
  483. OPDEF(JSOP_NEWARRAY, 230, "newarray", NULL, 4, -1, 1, 19, JOF_UINT24)
  484. OPDEF(JSOP_HOLE, 231, "hole", NULL, 1, 0, 1, 0, JOF_BYTE)