/js/lib/Socket.IO-node/support/expresso/deps/jscoverage/js/jsopcode.tbl
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/* 42 * JavaScript operation bytecodes. If you need to allocate a bytecode, look 43 * for a name of the form JSOP_UNUSED* and claim it. Otherwise, always add at 44 * the end of the table. 45 * 46 * Includers must define an OPDEF macro of the following form: 47 * 48 * #define OPDEF(op,val,name,image,length,nuses,ndefs,prec,format) ... 49 * 50 * Selected arguments can be expanded in initializers. The op argument is 51 * expanded followed by comma in the JSOp enum (jsopcode.h), e.g. The value 52 * field must be dense for now, because jsopcode.c uses an OPDEF() expansion 53 * inside the js_CodeSpec[] initializer. 54 * 55 * Field Description 56 * op Bytecode name, which is the JSOp enumerator name 57 * value Bytecode value, which is the JSOp enumerator value 58 * name C string containing name for disassembler 59 * image C string containing "image" for pretty-printer, null if ugly 60 * length Number of bytes including any immediate operands 61 * nuses Number of stack slots consumed by bytecode, -1 if variadic 62 * ndefs Number of stack slots produced by bytecode, -1 if variadic 63 * prec Operator precedence, zero if not an operator 64 * format Bytecode plus immediate operand encoding format 65 * 66 * Precedence Operators Opcodes 67 * 1 yield w JSOP_YIELD 68 * 2 , JSOP_POP with SRC_PCDELTA, JSOP_RETURN 69 * 3 =, +=, etc. JSOP_SETNAME, etc. (all JOF_SET); 70 * let (...) ... and JSOP_LEAVEBLOCKEXPR 71 * 4 ?: JSOP_IFEQ, JSOP_IFEQX 72 * 5 || JSOP_OR, JSOP_ORX 73 * 6 && JSOP_AND, JSOP_ANDX 74 * 7 | JSOP_BITOR 75 * 8 ^ JSOP_BITXOR 76 * 9 & JSOP_BITAND 77 * 10 ==, !=, etc. JSOP_EQ, JSOP_NE, etc. 78 * 11 <, in, etc. JSOP_LT, JSOP_IN, etc. 79 * 12 <<, >>, >>> JSOP_LSH, JSOP_RSH, JSOP_URSH 80 * 13 +, -, etc. JSOP_ADD, JSOP_SUB, etc. 81 * 14 *, /, % JSOP_MUL, JSOP_DIV, JSOP_MOD 82 * 15 !, ~, delete, etc. JSOP_NOT, JSOP_BITNOT, JSOP_DEL*, etc. 83 * 16 3.14, 0, etc. JSOP_DOUBLE, JSOP_ZERO, etc. 84 * 17 new JSOP_NEW 85 * 18 x.y, f(), etc. JSOP_GETPROP, JSOP_CALL, etc. 86 * 19 x, null, JSOP_NAME, JSOP_NULL, etc.; 87 * function (...) ... and JSOP_ANONFUNOBJ, JSOP_NAMEDFUNOBJ 88 * 89 * The push-numeric-constant operators, JSOP_ZERO, JSOP_DOUBLE, etc., have 90 * lower precedence than the member operators emitted for the . operator, to 91 * cause the decompiler to parenthesize the . left operand, e.g. (0).foo. 92 * Otherwise the . could be taken as a decimal point. 93 * 94 * Let expressions are "primary" when viewed from the left, but they eat up ops 95 * to the right as if assignment expressions and therefore have precedence 3. 96 * This makes the decompiler retain the parentheses in (let (a=0) x) ? a : 0 97 * but omit the superfluous ones in (let (a=0) x), a. 98 * 99 * Yield expressions must be parenthesized even in comma-expressions and 100 * argument lists, so they have the lowest precedence. 101 * 102 * This file is best viewed with 128 columns: 10312345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678 104 */ 105 106/* legend: op val name image len use def prec format */ 107 108/* Longstanding JavaScript bytecodes. */ 109OPDEF(JSOP_INTERRUPT, 0, "interrupt", NULL, 1, 0, 0, 0, JOF_BYTE) 110OPDEF(JSOP_PUSH, 1, "push", NULL, 1, 0, 1, 0, JOF_BYTE) 111OPDEF(JSOP_POPV, 2, "popv", NULL, 1, 1, 0, 2, JOF_BYTE) 112OPDEF(JSOP_ENTERWITH, 3, "enterwith", NULL, 1, 1, 1, 0, JOF_BYTE|JOF_PARENHEAD) 113OPDEF(JSOP_LEAVEWITH, 4, "leavewith", NULL, 1, 1, 0, 0, JOF_BYTE) 114OPDEF(JSOP_RETURN, 5, "return", NULL, 1, 1, 0, 2, JOF_BYTE) 115OPDEF(JSOP_GOTO, 6, "goto", NULL, 3, 0, 0, 0, JOF_JUMP) 116OPDEF(JSOP_IFEQ, 7, "ifeq", NULL, 3, 1, 0, 4, JOF_JUMP|JOF_DETECTING) 117OPDEF(JSOP_IFNE, 8, "ifne", NULL, 3, 1, 0, 0, JOF_JUMP|JOF_PARENHEAD) 118 119/* Get the arguments object for the current, lightweight function activation. */ 120OPDEF(JSOP_ARGUMENTS, 9, js_arguments_str, js_arguments_str, 1, 0, 1, 18, JOF_BYTE) 121 122/* ECMA-compliant for-in loop with argument or local loop control. */ 123OPDEF(JSOP_FORARG, 10, "forarg", NULL, 3, 2, 2, 19, JOF_QARG|JOF_NAME|JOF_FOR) 124OPDEF(JSOP_FORLOCAL, 11, "forlocal", NULL, 3, 2, 2, 19, JOF_LOCAL|JOF_NAME|JOF_FOR) 125 126/* More longstanding bytecodes. */ 127OPDEF(JSOP_DUP, 12, "dup", NULL, 1, 1, 2, 0, JOF_BYTE) 128OPDEF(JSOP_DUP2, 13, "dup2", NULL, 1, 2, 4, 0, JOF_BYTE) 129OPDEF(JSOP_SETCONST, 14, "setconst", NULL, 3, 1, 1, 3, JOF_ATOM|JOF_NAME|JOF_SET) 130OPDEF(JSOP_BITOR, 15, "bitor", "|", 1, 2, 1, 7, JOF_BYTE|JOF_LEFTASSOC|JOF_TMPSLOT2) 131OPDEF(JSOP_BITXOR, 16, "bitxor", "^", 1, 2, 1, 8, JOF_BYTE|JOF_LEFTASSOC|JOF_TMPSLOT2) 132OPDEF(JSOP_BITAND, 17, "bitand", "&", 1, 2, 1, 9, JOF_BYTE|JOF_LEFTASSOC|JOF_TMPSLOT2) 133OPDEF(JSOP_EQ, 18, "eq", "==", 1, 2, 1, 10, JOF_BYTE|JOF_LEFTASSOC|JOF_DETECTING) 134OPDEF(JSOP_NE, 19, "ne", "!=", 1, 2, 1, 10, JOF_BYTE|JOF_LEFTASSOC|JOF_DETECTING) 135OPDEF(JSOP_LT, 20, "lt", "<", 1, 2, 1, 11, JOF_BYTE|JOF_LEFTASSOC|JOF_TMPSLOT2) 136OPDEF(JSOP_LE, 21, "le", "<=", 1, 2, 1, 11, JOF_BYTE|JOF_LEFTASSOC|JOF_TMPSLOT2) 137OPDEF(JSOP_GT, 22, "gt", ">", 1, 2, 1, 11, JOF_BYTE|JOF_LEFTASSOC|JOF_TMPSLOT2) 138OPDEF(JSOP_GE, 23, "ge", ">=", 1, 2, 1, 11, JOF_BYTE|JOF_LEFTASSOC|JOF_TMPSLOT2) 139OPDEF(JSOP_LSH, 24, "lsh", "<<", 1, 2, 1, 12, JOF_BYTE|JOF_LEFTASSOC|JOF_TMPSLOT2) 140OPDEF(JSOP_RSH, 25, "rsh", ">>", 1, 2, 1, 12, JOF_BYTE|JOF_LEFTASSOC|JOF_TMPSLOT2) 141OPDEF(JSOP_URSH, 26, "ursh", ">>>", 1, 2, 1, 12, JOF_BYTE|JOF_LEFTASSOC|JOF_TMPSLOT2) 142OPDEF(JSOP_ADD, 27, "add", "+", 1, 2, 1, 13, JOF_BYTE|JOF_LEFTASSOC|JOF_TMPSLOT2) 143OPDEF(JSOP_SUB, 28, "sub", "-", 1, 2, 1, 13, JOF_BYTE|JOF_LEFTASSOC|JOF_TMPSLOT2) 144OPDEF(JSOP_MUL, 29, "mul", "*", 1, 2, 1, 14, JOF_BYTE|JOF_LEFTASSOC|JOF_TMPSLOT2) 145OPDEF(JSOP_DIV, 30, "div", "/", 1, 2, 1, 14, JOF_BYTE|JOF_LEFTASSOC|JOF_TMPSLOT2) 146OPDEF(JSOP_MOD, 31, "mod", "%", 1, 2, 1, 14, JOF_BYTE|JOF_LEFTASSOC|JOF_TMPSLOT2) 147OPDEF(JSOP_NOT, 32, "not", "!", 1, 1, 1, 15, JOF_BYTE|JOF_DETECTING) 148OPDEF(JSOP_BITNOT, 33, "bitnot", "~", 1, 1, 1, 15, JOF_BYTE) 149OPDEF(JSOP_NEG, 34, "neg", "- ", 1, 1, 1, 15, JOF_BYTE) 150OPDEF(JSOP_NEW, 35, js_new_str, NULL, 3, -1, 1, 17, JOF_UINT16|JOF_INVOKE) 151OPDEF(JSOP_DELNAME, 36, "delname", NULL, 3, 0, 1, 15, JOF_ATOM|JOF_NAME|JOF_DEL) 152OPDEF(JSOP_DELPROP, 37, "delprop", NULL, 3, 1, 1, 15, JOF_ATOM|JOF_PROP|JOF_DEL) 153OPDEF(JSOP_DELELEM, 38, "delelem", NULL, 1, 2, 1, 15, JOF_BYTE |JOF_ELEM|JOF_DEL) 154OPDEF(JSOP_TYPEOF, 39, js_typeof_str,NULL, 1, 1, 1, 15, JOF_BYTE|JOF_DETECTING) 155OPDEF(JSOP_VOID, 40, js_void_str, NULL, 1, 1, 1, 15, JOF_BYTE) 156 157OPDEF(JSOP_INCNAME, 41, "incname", NULL, 3, 0, 1, 15, JOF_ATOM|JOF_NAME|JOF_INC|JOF_TMPSLOT2) 158OPDEF(JSOP_INCPROP, 42, "incprop", NULL, 3, 1, 1, 15, JOF_ATOM|JOF_PROP|JOF_INC|JOF_TMPSLOT2) 159OPDEF(JSOP_INCELEM, 43, "incelem", NULL, 1, 2, 1, 15, JOF_BYTE |JOF_ELEM|JOF_INC|JOF_TMPSLOT2) 160OPDEF(JSOP_DECNAME, 44, "decname", NULL, 3, 0, 1, 15, JOF_ATOM|JOF_NAME|JOF_DEC|JOF_TMPSLOT2) 161OPDEF(JSOP_DECPROP, 45, "decprop", NULL, 3, 1, 1, 15, JOF_ATOM|JOF_PROP|JOF_DEC|JOF_TMPSLOT2) 162OPDEF(JSOP_DECELEM, 46, "decelem", NULL, 1, 2, 1, 15, JOF_BYTE |JOF_ELEM|JOF_DEC|JOF_TMPSLOT2) 163OPDEF(JSOP_NAMEINC, 47, "nameinc", NULL, 3, 0, 1, 15, JOF_ATOM|JOF_NAME|JOF_INC|JOF_POST|JOF_TMPSLOT2) 164OPDEF(JSOP_PROPINC, 48, "propinc", NULL, 3, 1, 1, 15, JOF_ATOM|JOF_PROP|JOF_INC|JOF_POST|JOF_TMPSLOT2) 165OPDEF(JSOP_ELEMINC, 49, "eleminc", NULL, 1, 2, 1, 15, JOF_BYTE |JOF_ELEM|JOF_INC|JOF_POST|JOF_TMPSLOT2) 166OPDEF(JSOP_NAMEDEC, 50, "namedec", NULL, 3, 0, 1, 15, JOF_ATOM|JOF_NAME|JOF_DEC|JOF_POST|JOF_TMPSLOT2) 167OPDEF(JSOP_PROPDEC, 51, "propdec", NULL, 3, 1, 1, 15, JOF_ATOM|JOF_PROP|JOF_DEC|JOF_POST|JOF_TMPSLOT2) 168OPDEF(JSOP_ELEMDEC, 52, "elemdec", NULL, 1, 2, 1, 15, JOF_BYTE |JOF_ELEM|JOF_DEC|JOF_POST|JOF_TMPSLOT2) 169 170OPDEF(JSOP_GETPROP, 53, "getprop", NULL, 3, 1, 1, 18, JOF_ATOM|JOF_PROP) 171OPDEF(JSOP_SETPROP, 54, "setprop", NULL, 3, 2, 1, 3, JOF_ATOM|JOF_PROP|JOF_SET|JOF_DETECTING) 172OPDEF(JSOP_GETELEM, 55, "getelem", NULL, 1, 2, 1, 18, JOF_BYTE |JOF_ELEM|JOF_LEFTASSOC) 173OPDEF(JSOP_SETELEM, 56, "setelem", NULL, 1, 3, 1, 3, JOF_BYTE |JOF_ELEM|JOF_SET|JOF_DETECTING) 174OPDEF(JSOP_CALLNAME, 57, "callname", NULL, 3, 0, 2, 19, JOF_ATOM|JOF_NAME|JOF_CALLOP) 175OPDEF(JSOP_CALL, 58, "call", NULL, 3, -1, 1, 18, JOF_UINT16|JOF_INVOKE) 176OPDEF(JSOP_NAME, 59, "name", NULL, 3, 0, 1, 19, JOF_ATOM|JOF_NAME) 177OPDEF(JSOP_DOUBLE, 60, "double", NULL, 3, 0, 1, 16, JOF_ATOM) 178OPDEF(JSOP_STRING, 61, "string", NULL, 3, 0, 1, 19, JOF_ATOM) 179OPDEF(JSOP_ZERO, 62, "zero", "0", 1, 0, 1, 16, JOF_BYTE) 180OPDEF(JSOP_ONE, 63, "one", "1", 1, 0, 1, 16, JOF_BYTE) 181OPDEF(JSOP_NULL, 64, js_null_str, js_null_str, 1, 0, 1, 19, JOF_BYTE) 182OPDEF(JSOP_THIS, 65, js_this_str, js_this_str, 1, 0, 1, 19, JOF_BYTE) 183OPDEF(JSOP_FALSE, 66, js_false_str, js_false_str, 1, 0, 1, 19, JOF_BYTE) 184OPDEF(JSOP_TRUE, 67, js_true_str, js_true_str, 1, 0, 1, 19, JOF_BYTE) 185OPDEF(JSOP_OR, 68, "or", NULL, 3, 1, 0, 5, JOF_JUMP|JOF_DETECTING|JOF_LEFTASSOC) 186OPDEF(JSOP_AND, 69, "and", NULL, 3, 1, 0, 6, JOF_JUMP|JOF_DETECTING|JOF_LEFTASSOC) 187 188/* The switch bytecodes have variable length. */ 189OPDEF(JSOP_TABLESWITCH, 70, "tableswitch", NULL, -1, 1, 0, 0, JOF_TABLESWITCH|JOF_DETECTING|JOF_PARENHEAD) 190OPDEF(JSOP_LOOKUPSWITCH, 71, "lookupswitch", NULL, -1, 1, 0, 0, JOF_LOOKUPSWITCH|JOF_DETECTING|JOF_PARENHEAD) 191 192/* New, infallible/transitive identity ops. */ 193OPDEF(JSOP_STRICTEQ, 72, "stricteq", "===", 1, 2, 1, 10, JOF_BYTE|JOF_DETECTING|JOF_LEFTASSOC) 194OPDEF(JSOP_STRICTNE, 73, "strictne", "!==", 1, 2, 1, 10, JOF_BYTE|JOF_DETECTING|JOF_LEFTASSOC) 195 196/* Variant of JSOP_NULL for default (global) |this| parameter pushing. */ 197OPDEF(JSOP_NULLTHIS, 74, js_null_str, js_null_str, 1, 0, 1, 19, JOF_BYTE) 198 199/* 200 * JSOP_ITER sets up a for-in or for-each-in loop using the JSITER_* flag bits 201 * in this op's uint8 immediate operand. It replaces the top of stack object 202 * with an iterator for that object, and pushes a slot used by JSOP_NEXTITER. 203 * 204 * JSOP_NEXTITER stores the next iterated value in the top of stack slot which 205 * was allocated by JSOP_ITER and pushes true, or stores JSVAL_HOLE and pushes 206 * false. It is followed immediately by JSOP_IFNE{,X}. 207 * 208 * JSOP_ENDITER cleans up after the loop. It uses the slot above the iterator 209 * for temporary GC rooting. 210 */ 211OPDEF(JSOP_ITER, 75, "iter", NULL, 2, 1, 2, 0, JOF_UINT8) 212OPDEF(JSOP_NEXTITER, 76, "nextiter", NULL, 1, 2, 3, 0, JOF_BYTE) 213OPDEF(JSOP_ENDITER, 77, "enditer", NULL, 1, 2, 0, 0, JOF_BYTE) 214 215OPDEF(JSOP_APPLY, 78, "apply", NULL, 3, -1, 1, 18, JOF_UINT16|JOF_INVOKE) 216OPDEF(JSOP_SWAP, 79, "swap", NULL, 1, 2, 2, 0, JOF_BYTE) 217 218/* Push object literal. */ 219OPDEF(JSOP_OBJECT, 80, "object", NULL, 3, 0, 1, 19, JOF_OBJECT) 220 221/* Pop value and discard it. */ 222OPDEF(JSOP_POP, 81, "pop", NULL, 1, 1, 0, 2, JOF_BYTE) 223 224/* Convert value to number, for unary +. */ 225OPDEF(JSOP_POS, 82, "pos", "+ ", 1, 1, 1, 15, JOF_BYTE) 226 227/* Trap into debugger for breakpoint, etc. */ 228OPDEF(JSOP_TRAP, 83, "trap", NULL, 1, 0, 0, 0, JOF_BYTE) 229 230/* Fast get/set ops for function arguments and local variables. */ 231OPDEF(JSOP_GETARG, 84, "getarg", NULL, 3, 0, 1, 19, JOF_QARG |JOF_NAME) 232OPDEF(JSOP_SETARG, 85, "setarg", NULL, 3, 1, 1, 3, JOF_QARG |JOF_NAME|JOF_SET) 233OPDEF(JSOP_GETLOCAL, 86,"getlocal", NULL, 3, 0, 1, 19, JOF_LOCAL|JOF_NAME) 234OPDEF(JSOP_SETLOCAL, 87,"setlocal", NULL, 3, 1, 1, 3, JOF_LOCAL|JOF_NAME|JOF_SET|JOF_DETECTING) 235 236/* Push unsigned 16-bit int constant. */ 237OPDEF(JSOP_UINT16, 88, "uint16", NULL, 3, 0, 1, 16, JOF_UINT16) 238 239/* Object and array literal support. */ 240OPDEF(JSOP_NEWINIT, 89, "newinit", NULL, 2, 0, 1, 19, JOF_INT8) 241OPDEF(JSOP_ENDINIT, 90, "endinit", NULL, 1, 0, 0, 19, JOF_BYTE) 242OPDEF(JSOP_INITPROP, 91, "initprop", NULL, 3, 1, 0, 3, JOF_ATOM|JOF_PROP|JOF_SET|JOF_DETECTING) 243OPDEF(JSOP_INITELEM, 92, "initelem", NULL, 1, 2, 0, 3, JOF_BYTE |JOF_ELEM|JOF_SET|JOF_DETECTING) 244OPDEF(JSOP_DEFSHARP, 93, "defsharp", NULL, 3, 0, 0, 0, JOF_UINT16) 245OPDEF(JSOP_USESHARP, 94, "usesharp", NULL, 3, 0, 1, 0, JOF_UINT16) 246 247/* Fast inc/dec ops for args and locals. */ 248OPDEF(JSOP_INCARG, 95, "incarg", NULL, 3, 0, 1, 15, JOF_QARG |JOF_NAME|JOF_INC) 249OPDEF(JSOP_DECARG, 96, "decarg", NULL, 3, 0, 1, 15, JOF_QARG |JOF_NAME|JOF_DEC) 250OPDEF(JSOP_ARGINC, 97, "arginc", NULL, 3, 0, 1, 15, JOF_QARG |JOF_NAME|JOF_INC|JOF_POST) 251OPDEF(JSOP_ARGDEC, 98, "argdec", NULL, 3, 0, 1, 15, JOF_QARG |JOF_NAME|JOF_DEC|JOF_POST) 252 253OPDEF(JSOP_INCLOCAL, 99, "inclocal", NULL, 3, 0, 1, 15, JOF_LOCAL|JOF_NAME|JOF_INC) 254OPDEF(JSOP_DECLOCAL, 100,"declocal", NULL, 3, 0, 1, 15, JOF_LOCAL|JOF_NAME|JOF_DEC) 255OPDEF(JSOP_LOCALINC, 101,"localinc", NULL, 3, 0, 1, 15, JOF_LOCAL|JOF_NAME|JOF_INC|JOF_POST) 256OPDEF(JSOP_LOCALDEC, 102,"localdec", NULL, 3, 0, 1, 15, JOF_LOCAL|JOF_NAME|JOF_DEC|JOF_POST) 257 258OPDEF(JSOP_IMACOP, 103,"imacop", NULL, 1, 0, 0, 0, JOF_BYTE) 259 260/* ECMA-compliant for/in ops. */ 261OPDEF(JSOP_FORNAME, 104,"forname", NULL, 3, 2, 2, 19, JOF_ATOM|JOF_NAME|JOF_FOR) 262OPDEF(JSOP_FORPROP, 105,"forprop", NULL, 3, 3, 2, 18, JOF_ATOM|JOF_PROP|JOF_FOR) 263OPDEF(JSOP_FORELEM, 106,"forelem", NULL, 1, 2, 3, 18, JOF_BYTE |JOF_ELEM|JOF_FOR) 264OPDEF(JSOP_POPN, 107,"popn", NULL, 3, -1, 0, 0, JOF_UINT16) 265 266/* ECMA-compliant assignment ops. */ 267OPDEF(JSOP_BINDNAME, 108,"bindname", NULL, 3, 0, 1, 0, JOF_ATOM|JOF_NAME|JOF_SET) 268OPDEF(JSOP_SETNAME, 109,"setname", NULL, 3, 2, 1, 3, JOF_ATOM|JOF_NAME|JOF_SET|JOF_DETECTING) 269 270/* Exception handling ops. */ 271OPDEF(JSOP_THROW, 110,js_throw_str, NULL, 1, 1, 0, 0, JOF_BYTE) 272 273/* 'in' and 'instanceof' ops. */ 274OPDEF(JSOP_IN, 111,js_in_str, js_in_str, 1, 2, 1, 11, JOF_BYTE|JOF_LEFTASSOC) 275OPDEF(JSOP_INSTANCEOF,112,js_instanceof_str,js_instanceof_str,1,2,1,11,JOF_BYTE|JOF_LEFTASSOC) 276 277/* debugger op */ 278OPDEF(JSOP_DEBUGGER, 113,"debugger", NULL, 1, 0, 0, 0, JOF_BYTE) 279 280/* gosub/retsub for finally handling */ 281OPDEF(JSOP_GOSUB, 114,"gosub", NULL, 3, 0, 0, 0, JOF_JUMP) 282OPDEF(JSOP_RETSUB, 115,"retsub", NULL, 1, 2, 0, 0, JOF_BYTE) 283 284/* More exception handling ops. */ 285OPDEF(JSOP_EXCEPTION, 116,"exception", NULL, 1, 0, 1, 0, JOF_BYTE) 286 287/* Embedded lineno to speedup pc->line mapping. */ 288OPDEF(JSOP_LINENO, 117,"lineno", NULL, 3, 0, 0, 0, JOF_UINT16) 289 290/* 291 * ECMA-compliant switch statement ops. 292 * CONDSWITCH is a decompilable NOP; CASE is ===, POP, jump if true, re-push 293 * lval if false; and DEFAULT is POP lval and GOTO. 294 */ 295OPDEF(JSOP_CONDSWITCH,118,"condswitch", NULL, 1, 0, 0, 0, JOF_BYTE|JOF_PARENHEAD) 296OPDEF(JSOP_CASE, 119,"case", NULL, 3, 2, 1, 0, JOF_JUMP) 297OPDEF(JSOP_DEFAULT, 120,"default", NULL, 3, 1, 0, 0, JOF_JUMP) 298 299/* 300 * ECMA-compliant call to eval op 301 */ 302OPDEF(JSOP_EVAL, 121,"eval", NULL, 3, -1, 1, 18, JOF_UINT16|JOF_INVOKE) 303 304/* 305 * ECMA-compliant helper for 'for (x[i] in o)' loops. 306 */ 307OPDEF(JSOP_ENUMELEM, 122,"enumelem", NULL, 1, 3, 0, 3, JOF_BYTE |JOF_SET) 308 309/* 310 * Getter and setter prefix bytecodes. These modify the next bytecode, either 311 * an assignment or a property initializer code, which then defines a property 312 * getter or setter. 313 */ 314OPDEF(JSOP_GETTER, 123,js_getter_str,NULL, 1, 0, 0, 0, JOF_BYTE) 315OPDEF(JSOP_SETTER, 124,js_setter_str,NULL, 1, 0, 0, 0, JOF_BYTE) 316 317/* 318 * Prolog bytecodes for defining function, var, and const names. 319 */ 320OPDEF(JSOP_DEFFUN, 125,"deffun", NULL, 3, 0, 0, 0, JOF_OBJECT|JOF_DECLARING) 321OPDEF(JSOP_DEFCONST, 126,"defconst", NULL, 3, 0, 0, 0, JOF_ATOM|JOF_DECLARING) 322OPDEF(JSOP_DEFVAR, 127,"defvar", NULL, 3, 0, 0, 0, JOF_ATOM|JOF_DECLARING) 323 324/* Auto-clone (if needed due to re-parenting) and push an anonymous function. */ 325OPDEF(JSOP_ANONFUNOBJ, 128, "anonfunobj", NULL, 3, 0, 1, 19, JOF_OBJECT) 326 327/* ECMA ed. 3 named function expression. */ 328OPDEF(JSOP_NAMEDFUNOBJ, 129, "namedfunobj", NULL, 3, 0, 1, 19, JOF_OBJECT) 329 330/* 331 * Like JSOP_SETLOCAL, but specialized to avoid requiring JSOP_POP immediately 332 * after to throw away the exception value. 333 */ 334OPDEF(JSOP_SETLOCALPOP, 130, "setlocalpop", NULL, 3, 1, 0, 3, JOF_LOCAL|JOF_NAME|JOF_SET) 335 336/* Parenthesization opcode to help the decompiler. */ 337OPDEF(JSOP_UNUSED131, 131, "unused131", NULL, 1, 0, 0, 0, JOF_BYTE) 338 339/* 340 * Host object extension: given 'o.item(i) = j', the left-hand side compiles 341 * JSOP_SETCALL, rather than JSOP_CALL. 342 */ 343OPDEF(JSOP_SETCALL, 132, "setcall", NULL, 3, -1, 2, 18, JOF_UINT16|JOF_SET) 344 345/* 346 * Exception handling no-op, for more economical byte-coding than SRC_TRYFIN 347 * srcnote-annotated JSOP_NOPs and to simply stack balance handling. 348 */ 349OPDEF(JSOP_TRY, 133,"try", NULL, 1, 0, 0, 0, JOF_BYTE) 350OPDEF(JSOP_FINALLY, 134,"finally", NULL, 1, 0, 2, 0, JOF_BYTE) 351 352/* 353 * Generic nop for the decompiler. 354 */ 355OPDEF(JSOP_NOP, 135,"nop", NULL, 1, 0, 0, 0, JOF_BYTE) 356 357/* 358 * Bytecodes that avoid making an arguments object in most cases: 359 * JSOP_ARGSUB gets arguments[i] from fp->argv, iff i is in [0, fp->argc-1]. 360 * JSOP_ARGCNT returns fp->argc. 361 */ 362OPDEF(JSOP_ARGSUB, 136,"argsub", NULL, 3, 0, 1, 18, JOF_QARG |JOF_NAME) 363OPDEF(JSOP_ARGCNT, 137,"argcnt", NULL, 1, 0, 1, 18, JOF_BYTE) 364 365/* 366 * Define a local function object as a local variable. 367 * The local variable's slot number is the first immediate two-byte operand. 368 * The function object's atom index is the second immediate operand. 369 */ 370OPDEF(JSOP_DEFLOCALFUN, 138,"deflocalfun",NULL, 5, 0, 0, 0, JOF_SLOTOBJECT|JOF_DECLARING) 371 372/* Extended jumps. */ 373OPDEF(JSOP_GOTOX, 139,"gotox", NULL, 5, 0, 0, 0, JOF_JUMPX) 374OPDEF(JSOP_IFEQX, 140,"ifeqx", NULL, 5, 1, 0, 4, JOF_JUMPX|JOF_DETECTING) 375OPDEF(JSOP_IFNEX, 141,"ifnex", NULL, 5, 1, 0, 0, JOF_JUMPX|JOF_PARENHEAD) 376OPDEF(JSOP_ORX, 142,"orx", NULL, 5, 1, 0, 5, JOF_JUMPX|JOF_DETECTING) 377OPDEF(JSOP_ANDX, 143,"andx", NULL, 5, 1, 0, 6, JOF_JUMPX|JOF_DETECTING) 378OPDEF(JSOP_GOSUBX, 144,"gosubx", NULL, 5, 0, 0, 0, JOF_JUMPX) 379OPDEF(JSOP_CASEX, 145,"casex", NULL, 5, 2, 1, 0, JOF_JUMPX) 380OPDEF(JSOP_DEFAULTX, 146,"defaultx", NULL, 5, 1, 0, 0, JOF_JUMPX) 381OPDEF(JSOP_TABLESWITCHX, 147,"tableswitchx",NULL, -1, 1, 0, 0, JOF_TABLESWITCHX|JOF_DETECTING|JOF_PARENHEAD) 382OPDEF(JSOP_LOOKUPSWITCHX, 148,"lookupswitchx",NULL, -1, 1, 0, 0, JOF_LOOKUPSWITCHX|JOF_DETECTING|JOF_PARENHEAD) 383 384/* Placeholders for a real jump opcode set during backpatch chain fixup. */ 385OPDEF(JSOP_BACKPATCH, 149,"backpatch",NULL, 3, 0, 0, 0, JOF_JUMP|JOF_BACKPATCH) 386OPDEF(JSOP_BACKPATCH_POP, 150,"backpatch_pop",NULL, 3, 1, 0, 0, JOF_JUMP|JOF_BACKPATCH) 387 388/* Set pending exception from the stack, to trigger rethrow. */ 389OPDEF(JSOP_THROWING, 151,"throwing", NULL, 1, 1, 0, 0, JOF_BYTE) 390 391/* Set and get return value pseudo-register in stack frame. */ 392OPDEF(JSOP_SETRVAL, 152,"setrval", NULL, 1, 1, 0, 2, JOF_BYTE) 393OPDEF(JSOP_RETRVAL, 153,"retrval", NULL, 1, 0, 0, 0, JOF_BYTE) 394 395/* Optimized global variable ops (we don't bother doing a JSOP_FORGVAR op). */ 396OPDEF(JSOP_GETGVAR, 154,"getgvar", NULL, 3, 0, 1, 19, JOF_ATOM|JOF_NAME) 397OPDEF(JSOP_SETGVAR, 155,"setgvar", NULL, 3, 1, 1, 3, JOF_ATOM|JOF_NAME|JOF_SET|JOF_DETECTING) 398OPDEF(JSOP_INCGVAR, 156,"incgvar", NULL, 3, 0, 1, 15, JOF_ATOM|JOF_NAME|JOF_INC|JOF_TMPSLOT2) 399OPDEF(JSOP_DECGVAR, 157,"decgvar", NULL, 3, 0, 1, 15, JOF_ATOM|JOF_NAME|JOF_DEC|JOF_TMPSLOT2) 400OPDEF(JSOP_GVARINC, 158,"gvarinc", NULL, 3, 0, 1, 15, JOF_ATOM|JOF_NAME|JOF_INC|JOF_POST|JOF_TMPSLOT2) 401OPDEF(JSOP_GVARDEC, 159,"gvardec", NULL, 3, 0, 1, 15, JOF_ATOM|JOF_NAME|JOF_DEC|JOF_POST|JOF_TMPSLOT2) 402 403/* Regular expression literal requiring special "fork on exec" handling. */ 404OPDEF(JSOP_REGEXP, 160,"regexp", NULL, 3, 0, 1, 19, JOF_REGEXP) 405 406/* XML (ECMA-357, a.k.a. "E4X") support. */ 407OPDEF(JSOP_DEFXMLNS, 161,"defxmlns", NULL, 1, 1, 0, 0, JOF_BYTE) 408OPDEF(JSOP_ANYNAME, 162,"anyname", NULL, 1, 0, 1, 19, JOF_BYTE|JOF_XMLNAME) 409OPDEF(JSOP_QNAMEPART, 163,"qnamepart", NULL, 3, 0, 1, 19, JOF_ATOM|JOF_XMLNAME) 410OPDEF(JSOP_QNAMECONST, 164,"qnameconst", NULL, 3, 1, 1, 19, JOF_ATOM|JOF_XMLNAME) 411OPDEF(JSOP_QNAME, 165,"qname", NULL, 1, 2, 1, 0, JOF_BYTE|JOF_XMLNAME) 412OPDEF(JSOP_TOATTRNAME, 166,"toattrname", NULL, 1, 1, 1, 19, JOF_BYTE|JOF_XMLNAME) 413OPDEF(JSOP_TOATTRVAL, 167,"toattrval", NULL, 1, 1, 1, 19, JOF_BYTE) 414OPDEF(JSOP_ADDATTRNAME, 168,"addattrname",NULL, 1, 2, 1, 13, JOF_BYTE) 415OPDEF(JSOP_ADDATTRVAL, 169,"addattrval", NULL, 1, 2, 1, 13, JOF_BYTE) 416OPDEF(JSOP_BINDXMLNAME, 170,"bindxmlname",NULL, 1, 1, 2, 3, JOF_BYTE|JOF_SET) 417OPDEF(JSOP_SETXMLNAME, 171,"setxmlname", NULL, 1, 3, 1, 3, JOF_BYTE|JOF_SET|JOF_DETECTING) 418OPDEF(JSOP_XMLNAME, 172,"xmlname", NULL, 1, 1, 1, 19, JOF_BYTE) 419OPDEF(JSOP_DESCENDANTS, 173,"descendants",NULL, 1, 2, 1, 18, JOF_BYTE) 420OPDEF(JSOP_FILTER, 174,"filter", NULL, 3, 1, 1, 0, JOF_JUMP) 421OPDEF(JSOP_ENDFILTER, 175,"endfilter", NULL, 3, 2, 1, 18, JOF_JUMP) 422OPDEF(JSOP_TOXML, 176,"toxml", NULL, 1, 1, 1, 19, JOF_BYTE) 423OPDEF(JSOP_TOXMLLIST, 177,"toxmllist", NULL, 1, 1, 1, 19, JOF_BYTE) 424OPDEF(JSOP_XMLTAGEXPR, 178,"xmltagexpr", NULL, 1, 1, 1, 0, JOF_BYTE) 425OPDEF(JSOP_XMLELTEXPR, 179,"xmleltexpr", NULL, 1, 1, 1, 0, JOF_BYTE) 426OPDEF(JSOP_XMLOBJECT, 180,"xmlobject", NULL, 3, 0, 1, 19, JOF_OBJECT) 427OPDEF(JSOP_XMLCDATA, 181,"xmlcdata", NULL, 3, 0, 1, 19, JOF_ATOM) 428OPDEF(JSOP_XMLCOMMENT, 182,"xmlcomment", NULL, 3, 0, 1, 19, JOF_ATOM) 429OPDEF(JSOP_XMLPI, 183,"xmlpi", NULL, 3, 1, 1, 19, JOF_ATOM) 430OPDEF(JSOP_CALLPROP, 184,"callprop", NULL, 3, 1, 2, 18, JOF_ATOM|JOF_PROP|JOF_CALLOP) 431OPDEF(JSOP_GETFUNNS, 185,"getfunns", NULL, 1, 0, 1, 19, JOF_BYTE) 432 433/* 434 * Get a display (free) variable from the closure's reserved slots. 435 */ 436OPDEF(JSOP_GETUPVAR, 186,"getupvar", NULL, 3, 0, 1, 19, JOF_UINT16|JOF_NAME) 437 438OPDEF(JSOP_DELDESC, 187,"deldesc", NULL, 1, 2, 1, 15, JOF_BYTE|JOF_ELEM|JOF_DEL) 439 440/* 441 * Opcode to hold 24-bit immediate integer operands. 442 */ 443OPDEF(JSOP_UINT24, 188,"uint24", NULL, 4, 0, 1, 16, JOF_UINT24) 444 445/* 446 * Opcodes to allow 24-bit atom or object indexes. Whenever an index exceeds 447 * the 16-bit limit, the index-accessing bytecode must be bracketed by 448 * JSOP_INDEXBASE and JSOP_RESETBASE to provide the upper bits of the index. 449 * See jsemit.c, EmitIndexOp. 450 */ 451OPDEF(JSOP_INDEXBASE, 189,"atombase", NULL, 2, 0, 0, 0, JOF_UINT8|JOF_INDEXBASE) 452OPDEF(JSOP_RESETBASE, 190,"resetbase", NULL, 1, 0, 0, 0, JOF_BYTE) 453OPDEF(JSOP_RESETBASE0, 191,"resetbase0", NULL, 1, 0, 0, 0, JOF_BYTE) 454 455/* 456 * Opcodes to help the decompiler deal with XML. 457 */ 458OPDEF(JSOP_STARTXML, 192,"startxml", NULL, 1, 0, 0, 0, JOF_BYTE) 459OPDEF(JSOP_STARTXMLEXPR, 193,"startxmlexpr",NULL, 1, 0, 0, 0, JOF_BYTE) 460 461OPDEF(JSOP_CALLELEM, 194, "callelem", NULL, 1, 2, 2, 18, JOF_BYTE |JOF_ELEM|JOF_LEFTASSOC|JOF_CALLOP) 462 463/* 464 * Stop interpretation, emitted at end of script to save the threaded bytecode 465 * interpreter an extra branch test on every DO_NEXT_OP (see jsinterp.c). 466 */ 467OPDEF(JSOP_STOP, 195,"stop", NULL, 1, 0, 0, 0, JOF_BYTE) 468 469/* 470 * Get an extant property value, throwing ReferenceError if the identified 471 * property does not exist. 472 */ 473OPDEF(JSOP_GETXPROP, 196,"getxprop", NULL, 3, 1, 1, 18, JOF_ATOM|JOF_PROP) 474 475OPDEF(JSOP_CALLXMLNAME, 197, "callxmlname", NULL, 1, 1, 2, 19, JOF_BYTE|JOF_CALLOP) 476 477/* 478 * Specialized JSOP_TYPEOF to avoid reporting undefined for typeof(0, undef). 479 */ 480OPDEF(JSOP_TYPEOFEXPR, 198,"typeofexpr", NULL, 1, 1, 1, 15, JOF_BYTE|JOF_DETECTING) 481 482/* 483 * Block-local scope support. 484 */ 485OPDEF(JSOP_ENTERBLOCK, 199,"enterblock", NULL, 3, 0, -1, 0, JOF_OBJECT) 486OPDEF(JSOP_LEAVEBLOCK, 200,"leaveblock", NULL, 3, -1, 0, 0, JOF_UINT16) 487OPDEF(JSOP_UNUSED201, 201,"unused201", NULL, 1, 0, 0, 0, JOF_BYTE) 488OPDEF(JSOP_UNUSED202, 202,"unused202", NULL, 1, 0, 0, 0, JOF_BYTE) 489OPDEF(JSOP_UNUSED203, 203,"unused203", NULL, 1, 0, 0, 0, JOF_BYTE) 490OPDEF(JSOP_UNUSED204, 204,"unused204", NULL, 1, 0, 0, 0, JOF_BYTE) 491OPDEF(JSOP_UNUSED205, 205,"unused205", NULL, 1, 0, 0, 0, JOF_BYTE) 492OPDEF(JSOP_UNUSED206, 206,"unused206", NULL, 1, 0, 0, 0, JOF_BYTE) 493OPDEF(JSOP_UNUSED207, 207,"unused207", NULL, 1, 0, 0, 0, JOF_BYTE) 494OPDEF(JSOP_UNUSED208, 208,"unused208", NULL, 1, 0, 0, 0, JOF_BYTE) 495OPDEF(JSOP_UNUSED209, 209,"unused209", NULL, 1, 0, 0, 0, JOF_BYTE) 496 497/* 498 * Generator and array comprehension support. 499 */ 500OPDEF(JSOP_GENERATOR, 210,"generator", NULL, 1, 0, 0, 0, JOF_BYTE) 501OPDEF(JSOP_YIELD, 211,"yield", NULL, 1, 1, 1, 1, JOF_BYTE) 502OPDEF(JSOP_ARRAYPUSH, 212,"arraypush", NULL, 3, 1, 0, 3, JOF_LOCAL) 503 504/* 505 * In the forthcoming great opcode reorg, this should go next to JSOP_GETUPVAR. 506 */ 507OPDEF(JSOP_CALLUPVAR, 213, "callupvar", NULL, 3, 0, 2, 19, JOF_UINT16|JOF_NAME|JOF_CALLOP) 508 509/* 510 * Variant of JSOP_ENUMELEM for destructuring const (const [a, b] = ...). 511 */ 512OPDEF(JSOP_ENUMCONSTELEM, 214,"enumconstelem",NULL, 1, 3, 0, 3, JOF_BYTE|JOF_SET) 513 514/* 515 * Variant of JSOP_LEAVEBLOCK has a result on the stack above the locals, 516 * which must be moved down when the block pops. 517 */ 518OPDEF(JSOP_LEAVEBLOCKEXPR,215,"leaveblockexpr",NULL, 3, -1, 1, 3, JOF_UINT16) 519 520/* 521 * Optimize common JSOP_{THIS,GET{ARG,LOCAL}} -> JSOP_GETPROP cliches. 522 */ 523OPDEF(JSOP_GETTHISPROP, 216,"getthisprop", NULL, 3, 0, 1, 18, JOF_ATOM|JOF_VARPROP) 524OPDEF(JSOP_GETARGPROP, 217,"getargprop", NULL, 5, 0, 1, 18, JOF_SLOTATOM|JOF_VARPROP) 525OPDEF(JSOP_GETLOCALPROP, 218,"getlocalprop", NULL, 5, 0, 1, 18, JOF_SLOTATOM|JOF_VARPROP) 526OPDEF(JSOP_UNUSED219, 219,"unused219", NULL, 1, 0, 0, 0, JOF_BYTE) 527 528/* 529 * Optimize atom segments 1-3. These must be followed by JSOP_RESETBASE0 after 530 * the opcode that they prefix. 531 */ 532OPDEF(JSOP_INDEXBASE1, 220,"atombase1", NULL, 1, 0, 0, 0, JOF_BYTE |JOF_INDEXBASE) 533OPDEF(JSOP_INDEXBASE2, 221,"atombase2", NULL, 1, 0, 0, 0, JOF_BYTE |JOF_INDEXBASE) 534OPDEF(JSOP_INDEXBASE3, 222,"atombase3", NULL, 1, 0, 0, 0, JOF_BYTE |JOF_INDEXBASE) 535 536OPDEF(JSOP_CALLGVAR, 223, "callgvar", NULL, 3, 0, 2, 19, JOF_ATOM|JOF_NAME|JOF_CALLOP) 537OPDEF(JSOP_CALLLOCAL, 224, "calllocal", NULL, 3, 0, 2, 19, JOF_LOCAL|JOF_NAME|JOF_CALLOP) 538OPDEF(JSOP_CALLARG, 225, "callarg", NULL, 3, 0, 2, 19, JOF_QARG |JOF_NAME|JOF_CALLOP) 539OPDEF(JSOP_UNUSED226, 226, "unused226", NULL, 1, 0, 1, 1, JOF_BYTE) 540 541/* 542 * Opcodes to hold 8-bit and 32-bit immediate integer operands. 543 */ 544OPDEF(JSOP_INT8, 227, "int8", NULL, 2, 0, 1, 16, JOF_INT8) 545OPDEF(JSOP_INT32, 228, "int32", NULL, 5, 0, 1, 16, JOF_INT32) 546 547/* 548 * Get the value of the 'length' property from a stacked object. 549 */ 550OPDEF(JSOP_LENGTH, 229, "length", NULL, 1, 1, 1, 18, JOF_BYTE|JOF_PROP) 551 552/* 553 * JSOP_NEWARRAY optimizes array literal evaluation using the interpreter stack. 554 * JSOP_HOLE pushes a JSVAL_HOLE (used with JSOP_NEWINIT and JSOP_NEWARRAY). 555 */ 556OPDEF(JSOP_NEWARRAY, 230, "newarray", NULL, 4, -1, 1, 19, JOF_UINT24) 557OPDEF(JSOP_HOLE, 231, "hole", NULL, 1, 0, 1, 0, JOF_BYTE)