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Diffstat (limited to 'src/third_party/js-1.7/jsopcode.tbl')
| -rw-r--r-- | src/third_party/js-1.7/jsopcode.tbl | 478 |
1 files changed, 478 insertions, 0 deletions
diff --git a/src/third_party/js-1.7/jsopcode.tbl b/src/third_party/js-1.7/jsopcode.tbl new file mode 100644 index 00000000000..4a4ca89830d --- /dev/null +++ b/src/third_party/js-1.7/jsopcode.tbl @@ -0,0 +1,478 @@ +/* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*- + * vim: set ts=8 sw=4 et tw=0 ft=C: + * + * ***** BEGIN LICENSE BLOCK ***** + * Version: MPL 1.1/GPL 2.0/LGPL 2.1 + * + * The contents of this file are subject to the Mozilla Public License Version + * 1.1 (the "License"); you may not use this file except in compliance with + * the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * Software distributed under the License is distributed on an "AS IS" basis, + * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License + * for the specific language governing rights and limitations under the + * License. + * + * The Original Code is Mozilla Communicator client code, released + * March 31, 1998. + * + * The Initial Developer of the Original Code is + * Netscape Communications Corporation. + * Portions created by the Initial Developer are Copyright (C) 1998 + * the Initial Developer. All Rights Reserved. + * + * Contributor(s): + * + * Alternatively, the contents of this file may be used under the terms of + * either of the GNU General Public License Version 2 or later (the "GPL"), + * or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"), + * in which case the provisions of the GPL or the LGPL are applicable instead + * of those above. If you wish to allow use of your version of this file only + * under the terms of either the GPL or the LGPL, and not to allow others to + * use your version of this file under the terms of the MPL, indicate your + * decision by deleting the provisions above and replace them with the notice + * and other provisions required by the GPL or the LGPL. If you do not delete + * the provisions above, a recipient may use your version of this file under + * the terms of any one of the MPL, the GPL or the LGPL. + * + * ***** END LICENSE BLOCK ***** */ + +/* + * JavaScript operation bytecodes. If you need to allocate a bytecode, look + * for a name of the form JSOP_UNUSED* and claim it. Otherwise, always add at + * the end of the table. + * + * Includers must define an OPDEF macro of the following form: + * + * #define OPDEF(op,val,name,image,length,nuses,ndefs,prec,format) ... + * + * Selected arguments can be expanded in initializers. The op argument is + * expanded followed by comma in the JSOp enum (jsopcode.h), e.g. The value + * field must be dense for now, because jsopcode.c uses an OPDEF() expansion + * inside the js_CodeSpec[] initializer. + * + * Field Description + * op Bytecode name, which is the JSOp enumerator name + * value Bytecode value, which is the JSOp enumerator value + * name C string containing name for disassembler + * image C string containing "image" for pretty-printer, null if ugly + * length Number of bytes including any immediate operands + * nuses Number of stack slots consumed by bytecode, -1 if variadic + * ndefs Number of stack slots produced by bytecode + * prec Operator precedence, zero if not an operator + * format Bytecode plus immediate operand encoding format + * + * Precedence Operators Opcodes + * 1 let (x = y) z, w JSOP_LEAVEBLOCKEXPR + * 2 , JSOP_POP with SRC_PCDELTA note + * 3 =, +=, etc. JSOP_SETNAME, etc. (all JOF_ASSIGNING) + * 4 ?: JSOP_IFEQ, JSOP_IFEQX + * 5 || JSOP_OR, JSOP_ORX + * 6 && JSOP_AND, JSOP_ANDX + * 7 | JSOP_BITOR + * 8 ^ JSOP_BITXOR + * 9 & JSOP_BITAND + * 10 ==, !=, etc. JSOP_EQ, JSOP_NE, etc. + * 11 <, in, etc. JSOP_LT, JSOP_IN, etc. + * 12 <<, >>, >>> JSOP_LSH, JSOP_RSH, JSOP_URSH + * 13 +, -, etc. JSOP_ADD, JSOP_SUB, etc. + * 14 *, /, % JSOP_MUL, JSOP_DIV, JSOP_MOD + * 15 !, ~, etc. JSOP_NOT, JSOP_BITNOT, etc. + * 16 0, function(){} etc. JSOP_ZERO, JSOP_ANONFUNOBJ, etc. + * 17 delete, new JSOP_DEL*, JSOP_NEW + * 18 x.y, f(), etc. JSOP_GETPROP, JSOP_CALL, etc. + * 19 x, null, etc. JSOP_NAME, JSOP_NULL, etc. + * + * The push-numeric-constant operators, JSOP_ZERO, JSOP_NUMBER, etc., have + * lower precedence than the member operators emitted for the . operator, to + * cause the decompiler to parenthesize the . left operand, e.g. (0).foo. + * Otherwise the . could be taken as a decimal point. We use the same level + * 16 for function expressions too, to force parenthesization. + * + * This file is best viewed with 128 columns: +12345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678 + */ + +/* legend: op val name image len use def prec format */ + +/* Longstanding JavaScript bytecodes. */ +OPDEF(JSOP_NOP, 0, "nop", NULL, 1, 0, 0, 0, JOF_BYTE) +OPDEF(JSOP_PUSH, 1, "push", NULL, 1, 0, 1, 0, JOF_BYTE) +OPDEF(JSOP_POPV, 2, "popv", NULL, 1, 1, 0, 2, JOF_BYTE) +OPDEF(JSOP_ENTERWITH, 3, "enterwith", NULL, 1, 1, 1, 0, JOF_BYTE) +OPDEF(JSOP_LEAVEWITH, 4, "leavewith", NULL, 1, 1, 0, 0, JOF_BYTE) +OPDEF(JSOP_RETURN, 5, "return", NULL, 1, 1, 0, 0, JOF_BYTE) +OPDEF(JSOP_GOTO, 6, "goto", NULL, 3, 0, 0, 0, JOF_JUMP) +OPDEF(JSOP_IFEQ, 7, "ifeq", NULL, 3, 1, 0, 4, JOF_JUMP|JOF_DETECTING) +OPDEF(JSOP_IFNE, 8, "ifne", NULL, 3, 1, 0, 0, JOF_JUMP) + +/* Get the arguments object for the current, lightweight function activation. */ +OPDEF(JSOP_ARGUMENTS, 9, js_arguments_str, js_arguments_str, 1, 0, 1, 18, JOF_BYTE) + +/* ECMA-compliant for-in loop with argument or local variable loop control. */ +OPDEF(JSOP_FORARG, 10, "forarg", NULL, 3, 0, 1, 19, JOF_QARG|JOF_NAME|JOF_FOR) +OPDEF(JSOP_FORVAR, 11, "forvar", NULL, 3, 0, 1, 19, JOF_QVAR|JOF_NAME|JOF_FOR) + +/* More longstanding bytecodes. */ +OPDEF(JSOP_DUP, 12, "dup", NULL, 1, 1, 2, 0, JOF_BYTE) +OPDEF(JSOP_DUP2, 13, "dup2", NULL, 1, 2, 4, 0, JOF_BYTE) +OPDEF(JSOP_SETCONST, 14, "setconst", NULL, 3, 1, 1, 3, JOF_CONST|JOF_NAME|JOF_SET|JOF_ASSIGNING) +OPDEF(JSOP_BITOR, 15, "bitor", "|", 1, 2, 1, 7, JOF_BYTE|JOF_LEFTASSOC) +OPDEF(JSOP_BITXOR, 16, "bitxor", "^", 1, 2, 1, 8, JOF_BYTE|JOF_LEFTASSOC) +OPDEF(JSOP_BITAND, 17, "bitand", "&", 1, 2, 1, 9, JOF_BYTE|JOF_LEFTASSOC) +OPDEF(JSOP_EQ, 18, "eq", "==", 1, 2, 1, 10, JOF_BYTE|JOF_LEFTASSOC|JOF_DETECTING) +OPDEF(JSOP_NE, 19, "ne", "!=", 1, 2, 1, 10, JOF_BYTE|JOF_LEFTASSOC|JOF_DETECTING) +OPDEF(JSOP_LT, 20, "lt", "<", 1, 2, 1, 11, JOF_BYTE|JOF_LEFTASSOC) +OPDEF(JSOP_LE, 21, "le", "<=", 1, 2, 1, 11, JOF_BYTE|JOF_LEFTASSOC) +OPDEF(JSOP_GT, 22, "gt", ">", 1, 2, 1, 11, JOF_BYTE|JOF_LEFTASSOC) +OPDEF(JSOP_GE, 23, "ge", ">=", 1, 2, 1, 11, JOF_BYTE|JOF_LEFTASSOC) +OPDEF(JSOP_LSH, 24, "lsh", "<<", 1, 2, 1, 12, JOF_BYTE|JOF_LEFTASSOC) +OPDEF(JSOP_RSH, 25, "rsh", ">>", 1, 2, 1, 12, JOF_BYTE|JOF_LEFTASSOC) +OPDEF(JSOP_URSH, 26, "ursh", ">>>", 1, 2, 1, 12, JOF_BYTE|JOF_LEFTASSOC) +OPDEF(JSOP_ADD, 27, "add", "+", 1, 2, 1, 13, JOF_BYTE|JOF_LEFTASSOC) +OPDEF(JSOP_SUB, 28, "sub", "-", 1, 2, 1, 13, JOF_BYTE|JOF_LEFTASSOC) +OPDEF(JSOP_MUL, 29, "mul", "*", 1, 2, 1, 14, JOF_BYTE|JOF_LEFTASSOC) +OPDEF(JSOP_DIV, 30, "div", "/", 1, 2, 1, 14, JOF_BYTE|JOF_LEFTASSOC) +OPDEF(JSOP_MOD, 31, "mod", "%", 1, 2, 1, 14, JOF_BYTE|JOF_LEFTASSOC) +OPDEF(JSOP_NOT, 32, "not", "!", 1, 1, 1, 15, JOF_BYTE|JOF_DETECTING) +OPDEF(JSOP_BITNOT, 33, "bitnot", "~", 1, 1, 1, 15, JOF_BYTE) +OPDEF(JSOP_NEG, 34, "neg", "- ", 1, 1, 1, 15, JOF_BYTE) +OPDEF(JSOP_NEW, 35, js_new_str, NULL, 3, -1, 1, 17, JOF_UINT16) +OPDEF(JSOP_DELNAME, 36, "delname", NULL, 3, 0, 1, 17, JOF_CONST|JOF_NAME|JOF_DEL) +OPDEF(JSOP_DELPROP, 37, "delprop", NULL, 3, 1, 1, 17, JOF_CONST|JOF_PROP|JOF_DEL) +OPDEF(JSOP_DELELEM, 38, "delelem", NULL, 1, 2, 1, 17, JOF_BYTE |JOF_ELEM|JOF_DEL) +OPDEF(JSOP_TYPEOF, 39, js_typeof_str,NULL, 1, 1, 1, 15, JOF_BYTE|JOF_DETECTING) +OPDEF(JSOP_VOID, 40, js_void_str, NULL, 1, 1, 1, 15, JOF_BYTE) +OPDEF(JSOP_INCNAME, 41, "incname", NULL, 3, 0, 1, 15, JOF_CONST|JOF_NAME|JOF_INC) +OPDEF(JSOP_INCPROP, 42, "incprop", NULL, 3, 1, 1, 15, JOF_CONST|JOF_PROP|JOF_INC) +OPDEF(JSOP_INCELEM, 43, "incelem", NULL, 1, 2, 1, 15, JOF_BYTE |JOF_ELEM|JOF_INC) +OPDEF(JSOP_DECNAME, 44, "decname", NULL, 3, 0, 1, 15, JOF_CONST|JOF_NAME|JOF_DEC) +OPDEF(JSOP_DECPROP, 45, "decprop", NULL, 3, 1, 1, 15, JOF_CONST|JOF_PROP|JOF_DEC) +OPDEF(JSOP_DECELEM, 46, "decelem", NULL, 1, 2, 1, 15, JOF_BYTE |JOF_ELEM|JOF_DEC) +OPDEF(JSOP_NAMEINC, 47, "nameinc", NULL, 3, 0, 1, 15, JOF_CONST|JOF_NAME|JOF_INC|JOF_POST) +OPDEF(JSOP_PROPINC, 48, "propinc", NULL, 3, 1, 1, 15, JOF_CONST|JOF_PROP|JOF_INC|JOF_POST) +OPDEF(JSOP_ELEMINC, 49, "eleminc", NULL, 1, 2, 1, 15, JOF_BYTE |JOF_ELEM|JOF_INC|JOF_POST) +OPDEF(JSOP_NAMEDEC, 50, "namedec", NULL, 3, 0, 1, 15, JOF_CONST|JOF_NAME|JOF_DEC|JOF_POST) +OPDEF(JSOP_PROPDEC, 51, "propdec", NULL, 3, 1, 1, 15, JOF_CONST|JOF_PROP|JOF_DEC|JOF_POST) +OPDEF(JSOP_ELEMDEC, 52, "elemdec", NULL, 1, 2, 1, 15, JOF_BYTE |JOF_ELEM|JOF_DEC|JOF_POST) +OPDEF(JSOP_GETPROP, 53, "getprop", NULL, 3, 1, 1, 18, JOF_CONST|JOF_PROP) +OPDEF(JSOP_SETPROP, 54, "setprop", NULL, 3, 2, 1, 3, JOF_CONST|JOF_PROP|JOF_SET|JOF_ASSIGNING|JOF_DETECTING) +OPDEF(JSOP_GETELEM, 55, "getelem", NULL, 1, 2, 1, 18, JOF_BYTE |JOF_ELEM|JOF_LEFTASSOC) +OPDEF(JSOP_SETELEM, 56, "setelem", NULL, 1, 3, 1, 3, JOF_BYTE |JOF_ELEM|JOF_SET|JOF_ASSIGNING|JOF_DETECTING) +OPDEF(JSOP_PUSHOBJ, 57, "pushobj", NULL, 1, 0, 1, 0, JOF_BYTE) +OPDEF(JSOP_CALL, 58, "call", NULL, 3, -1, 1, 18, JOF_UINT16) +OPDEF(JSOP_NAME, 59, "name", NULL, 3, 0, 1, 19, JOF_CONST|JOF_NAME) +OPDEF(JSOP_NUMBER, 60, "number", NULL, 3, 0, 1, 16, JOF_CONST) +OPDEF(JSOP_STRING, 61, "string", NULL, 3, 0, 1, 19, JOF_CONST) +OPDEF(JSOP_ZERO, 62, "zero", "0", 1, 0, 1, 16, JOF_BYTE) +OPDEF(JSOP_ONE, 63, "one", "1", 1, 0, 1, 16, JOF_BYTE) +OPDEF(JSOP_NULL, 64, js_null_str, js_null_str, 1, 0, 1, 19, JOF_BYTE) +OPDEF(JSOP_THIS, 65, js_this_str, js_this_str, 1, 0, 1, 19, JOF_BYTE) +OPDEF(JSOP_FALSE, 66, js_false_str, js_false_str, 1, 0, 1, 19, JOF_BYTE) +OPDEF(JSOP_TRUE, 67, js_true_str, js_true_str, 1, 0, 1, 19, JOF_BYTE) +OPDEF(JSOP_OR, 68, "or", NULL, 3, 1, 0, 5, JOF_JUMP|JOF_DETECTING) +OPDEF(JSOP_AND, 69, "and", NULL, 3, 1, 0, 6, JOF_JUMP|JOF_DETECTING) + +/* The switch bytecodes have variable length. */ +OPDEF(JSOP_TABLESWITCH, 70, "tableswitch", NULL, -1, 1, 0, 0, JOF_TABLESWITCH|JOF_DETECTING) +OPDEF(JSOP_LOOKUPSWITCH, 71, "lookupswitch", NULL, -1, 1, 0, 0, JOF_LOOKUPSWITCH|JOF_DETECTING) + +/* New, infallible/transitive identity ops. */ +OPDEF(JSOP_NEW_EQ, 72, "eq", NULL, 1, 2, 1, 10, JOF_BYTE|JOF_DETECTING) +OPDEF(JSOP_NEW_NE, 73, "ne", NULL, 1, 2, 1, 10, JOF_BYTE|JOF_DETECTING) + +/* Lexical closure constructor. */ +OPDEF(JSOP_CLOSURE, 74, "closure", NULL, 3, 0, 0, 0, JOF_CONST) + +/* Export and import ops. */ +OPDEF(JSOP_EXPORTALL, 75, "exportall", NULL, 1, 0, 0, 0, JOF_BYTE) +OPDEF(JSOP_EXPORTNAME,76, "exportname", NULL, 3, 0, 0, 0, JOF_CONST|JOF_NAME) +OPDEF(JSOP_IMPORTALL, 77, "importall", NULL, 1, 1, 0, 0, JOF_BYTE) +OPDEF(JSOP_IMPORTPROP,78, "importprop", NULL, 3, 1, 0, 0, JOF_CONST|JOF_PROP|JOF_IMPORT) +OPDEF(JSOP_IMPORTELEM,79, "importelem", NULL, 1, 2, 0, 0, JOF_BYTE |JOF_ELEM|JOF_IMPORT) + +/* Push object literal. */ +OPDEF(JSOP_OBJECT, 80, "object", NULL, 3, 0, 1, 19, JOF_CONST) + +/* Pop value and discard it. */ +OPDEF(JSOP_POP, 81, "pop", NULL, 1, 1, 0, 2, JOF_BYTE) + +/* Convert value to number, for unary +. */ +OPDEF(JSOP_POS, 82, "pos", "+ ", 1, 1, 1, 15, JOF_BYTE) + +/* Trap into debugger for breakpoint, etc. */ +OPDEF(JSOP_TRAP, 83, "trap", NULL, 1, 0, 0, 0, JOF_BYTE) + +/* Fast get/set ops for function arguments and local variables. */ +OPDEF(JSOP_GETARG, 84, "getarg", NULL, 3, 0, 1, 19, JOF_QARG |JOF_NAME) +OPDEF(JSOP_SETARG, 85, "setarg", NULL, 3, 1, 1, 3, JOF_QARG |JOF_NAME|JOF_SET|JOF_ASSIGNING) +OPDEF(JSOP_GETVAR, 86, "getvar", NULL, 3, 0, 1, 19, JOF_QVAR |JOF_NAME) +OPDEF(JSOP_SETVAR, 87, "setvar", NULL, 3, 1, 1, 3, JOF_QVAR |JOF_NAME|JOF_SET|JOF_ASSIGNING|JOF_DETECTING) + +/* Push unsigned 16-bit int constant. */ +OPDEF(JSOP_UINT16, 88, "uint16", NULL, 3, 0, 1, 16, JOF_UINT16) + +/* Object and array literal support. */ +OPDEF(JSOP_NEWINIT, 89, "newinit", NULL, 1, 2, 1, 0, JOF_BYTE) +OPDEF(JSOP_ENDINIT, 90, "endinit", NULL, 1, 0, 0, 19, JOF_BYTE) +OPDEF(JSOP_INITPROP, 91, "initprop", NULL, 3, 1, 0, 3, JOF_CONST|JOF_PROP|JOF_DETECTING) +OPDEF(JSOP_INITELEM, 92, "initelem", NULL, 1, 2, 0, 3, JOF_BYTE |JOF_ELEM|JOF_DETECTING) +OPDEF(JSOP_DEFSHARP, 93, "defsharp", NULL, 3, 0, 0, 0, JOF_UINT16) +OPDEF(JSOP_USESHARP, 94, "usesharp", NULL, 3, 0, 1, 0, JOF_UINT16) + +/* Fast inc/dec ops for args and local vars. */ +OPDEF(JSOP_INCARG, 95, "incarg", NULL, 3, 0, 1, 15, JOF_QARG |JOF_NAME|JOF_INC) +OPDEF(JSOP_INCVAR, 96, "incvar", NULL, 3, 0, 1, 15, JOF_QVAR |JOF_NAME|JOF_INC) +OPDEF(JSOP_DECARG, 97, "decarg", NULL, 3, 0, 1, 15, JOF_QARG |JOF_NAME|JOF_DEC) +OPDEF(JSOP_DECVAR, 98, "decvar", NULL, 3, 0, 1, 15, JOF_QVAR |JOF_NAME|JOF_DEC) +OPDEF(JSOP_ARGINC, 99, "arginc", NULL, 3, 0, 1, 15, JOF_QARG |JOF_NAME|JOF_INC|JOF_POST) +OPDEF(JSOP_VARINC, 100,"varinc", NULL, 3, 0, 1, 15, JOF_QVAR |JOF_NAME|JOF_INC|JOF_POST) +OPDEF(JSOP_ARGDEC, 101,"argdec", NULL, 3, 0, 1, 15, JOF_QARG |JOF_NAME|JOF_DEC|JOF_POST) +OPDEF(JSOP_VARDEC, 102,"vardec", NULL, 3, 0, 1, 15, JOF_QVAR |JOF_NAME|JOF_DEC|JOF_POST) + +/* + * Initialize for-in iterator. See also JSOP_FOREACH and JSOP_FOREACHKEYVAL. + */ +OPDEF(JSOP_FORIN, 103,"forin", NULL, 1, 1, 1, 0, JOF_BYTE) + +/* ECMA-compliant for/in ops. */ +OPDEF(JSOP_FORNAME, 104,"forname", NULL, 3, 0, 1, 19, JOF_CONST|JOF_NAME|JOF_FOR) +OPDEF(JSOP_FORPROP, 105,"forprop", NULL, 3, 1, 1, 18, JOF_CONST|JOF_PROP|JOF_FOR) +OPDEF(JSOP_FORELEM, 106,"forelem", NULL, 1, 1, 3, 18, JOF_BYTE |JOF_ELEM|JOF_FOR) +OPDEF(JSOP_POP2, 107,"pop2", NULL, 1, 2, 0, 0, JOF_BYTE) + +/* ECMA-compliant assignment ops. */ +OPDEF(JSOP_BINDNAME, 108,"bindname", NULL, 3, 0, 1, 0, JOF_CONST|JOF_NAME|JOF_SET|JOF_ASSIGNING) +OPDEF(JSOP_SETNAME, 109,"setname", NULL, 3, 2, 1, 3, JOF_CONST|JOF_NAME|JOF_SET|JOF_ASSIGNING|JOF_DETECTING) + +/* Exception handling ops. */ +OPDEF(JSOP_THROW, 110,"throw", NULL, 1, 1, 0, 0, JOF_BYTE) + +/* 'in' and 'instanceof' ops. */ +OPDEF(JSOP_IN, 111,js_in_str, js_in_str, 1, 2, 1, 11, JOF_BYTE|JOF_LEFTASSOC) +OPDEF(JSOP_INSTANCEOF,112,js_instanceof_str,js_instanceof_str,1,2,1,11,JOF_BYTE|JOF_LEFTASSOC) + +/* debugger op */ +OPDEF(JSOP_DEBUGGER, 113,"debugger", NULL, 1, 0, 0, 0, JOF_BYTE) + +/* gosub/retsub for finally handling */ +OPDEF(JSOP_GOSUB, 114,"gosub", NULL, 3, 0, 0, 0, JOF_JUMP) +OPDEF(JSOP_RETSUB, 115,"retsub", NULL, 1, 0, 0, 0, JOF_BYTE) + +/* More exception handling ops. */ +OPDEF(JSOP_EXCEPTION, 116,"exception", NULL, 1, 0, 1, 0, JOF_BYTE) +OPDEF(JSOP_SETSP, 117,"setsp", NULL, 3, 0, 0, 0, JOF_UINT16) + +/* + * ECMA-compliant switch statement ops. + * CONDSWITCH is a decompilable NOP; CASE is ===, POP, jump if true, re-push + * lval if false; and DEFAULT is POP lval and GOTO. + */ +OPDEF(JSOP_CONDSWITCH,118,"condswitch", NULL, 1, 0, 0, 0, JOF_BYTE) +OPDEF(JSOP_CASE, 119,"case", NULL, 3, 1, 0, 0, JOF_JUMP) +OPDEF(JSOP_DEFAULT, 120,"default", NULL, 3, 1, 0, 0, JOF_JUMP) + +/* + * ECMA-compliant call to eval op + */ +OPDEF(JSOP_EVAL, 121,"eval", NULL, 3, -1, 1, 18, JOF_UINT16) + +/* + * ECMA-compliant helper for 'for (x[i] in o)' loops. + */ +OPDEF(JSOP_ENUMELEM, 122,"enumelem", NULL, 1, 3, 0, 3, JOF_BYTE |JOF_SET|JOF_ASSIGNING) + +/* + * Getter and setter prefix bytecodes. These modify the next bytecode, either + * an assignment or a property initializer code, which then defines a property + * getter or setter. + */ +OPDEF(JSOP_GETTER, 123,js_getter_str,NULL, 1, 0, 0, 0, JOF_BYTE) +OPDEF(JSOP_SETTER, 124,js_setter_str,NULL, 1, 0, 0, 0, JOF_BYTE) + +/* + * Prolog bytecodes for defining function, var, and const names. + */ +OPDEF(JSOP_DEFFUN, 125,"deffun", NULL, 3, 0, 0, 0, JOF_CONST|JOF_DECLARING) +OPDEF(JSOP_DEFCONST, 126,"defconst", NULL, 3, 0, 0, 0, JOF_CONST|JOF_DECLARING) +OPDEF(JSOP_DEFVAR, 127,"defvar", NULL, 3, 0, 0, 0, JOF_CONST|JOF_DECLARING) + +/* Auto-clone (if needed due to re-parenting) and push an anonymous function. */ +OPDEF(JSOP_ANONFUNOBJ, 128, "anonfunobj", NULL, 3, 0, 1, 16, JOF_CONST) + +/* ECMA ed. 3 named function expression. */ +OPDEF(JSOP_NAMEDFUNOBJ, 129, "namedfunobj", NULL, 3, 0, 1, 16, JOF_CONST) + +/* + * Like JSOP_SETLOCAL, but specialized to avoid requiring JSOP_POP immediately + * after to throw away the exception value. + */ +OPDEF(JSOP_SETLOCALPOP, 130, "setlocalpop", NULL, 3, 1, 0, 3, JOF_LOCAL|JOF_NAME|JOF_SET) + +/* ECMA-mandated parenthesization opcode, which nulls the reference base register, obj; see jsinterp.c. */ +OPDEF(JSOP_GROUP, 131, "group", NULL, 1, 0, 0, 0, JOF_BYTE) + +/* Host object extension: given 'o.item(i) = j', the left-hand side compiles JSOP_SETCALL, rather than JSOP_CALL. */ +OPDEF(JSOP_SETCALL, 132, "setcall", NULL, 3, -1, 2, 18, JOF_UINT16|JOF_SET|JOF_ASSIGNING) + +/* + * Exception handling no-ops, for more economical byte-coding than SRC_TRYFIN + * srcnote-annotated JSOP_NOPs. + */ +OPDEF(JSOP_TRY, 133,"try", NULL, 1, 0, 0, 0, JOF_BYTE) +OPDEF(JSOP_FINALLY, 134,"finally", NULL, 1, 0, 0, 0, JOF_BYTE) + +/* + * Swap the top two stack elements. + */ +OPDEF(JSOP_SWAP, 135,"swap", NULL, 1, 2, 2, 0, JOF_BYTE) + +/* + * Bytecodes that avoid making an arguments object in most cases: + * JSOP_ARGSUB gets arguments[i] from fp->argv, iff i is in [0, fp->argc-1]. + * JSOP_ARGCNT returns fp->argc. + */ +OPDEF(JSOP_ARGSUB, 136,"argsub", NULL, 3, 0, 1, 18, JOF_QARG |JOF_NAME) +OPDEF(JSOP_ARGCNT, 137,"argcnt", NULL, 1, 0, 1, 18, JOF_BYTE) + +/* + * Define a local function object as a local variable. + * The local variable's slot number is the first immediate two-byte operand. + * The function object's atom index is the second immediate operand. + */ +OPDEF(JSOP_DEFLOCALFUN, 138,"deflocalfun",NULL, 5, 0, 0, 0, JOF_INDEXCONST|JOF_DECLARING) + +/* Extended jumps. */ +OPDEF(JSOP_GOTOX, 139,"gotox", NULL, 5, 0, 0, 0, JOF_JUMPX) +OPDEF(JSOP_IFEQX, 140,"ifeqx", NULL, 5, 1, 0, 3, JOF_JUMPX|JOF_DETECTING) +OPDEF(JSOP_IFNEX, 141,"ifnex", NULL, 5, 1, 0, 0, JOF_JUMPX) +OPDEF(JSOP_ORX, 142,"orx", NULL, 5, 1, 0, 5, JOF_JUMPX|JOF_DETECTING) +OPDEF(JSOP_ANDX, 143,"andx", NULL, 5, 1, 0, 6, JOF_JUMPX|JOF_DETECTING) +OPDEF(JSOP_GOSUBX, 144,"gosubx", NULL, 5, 0, 0, 0, JOF_JUMPX) +OPDEF(JSOP_CASEX, 145,"casex", NULL, 5, 1, 0, 0, JOF_JUMPX) +OPDEF(JSOP_DEFAULTX, 146,"defaultx", NULL, 5, 1, 0, 0, JOF_JUMPX) +OPDEF(JSOP_TABLESWITCHX, 147,"tableswitchx",NULL, -1, 1, 0, 0, JOF_TABLESWITCHX|JOF_DETECTING) +OPDEF(JSOP_LOOKUPSWITCHX, 148,"lookupswitchx",NULL, -1, 1, 0, 0, JOF_LOOKUPSWITCHX|JOF_DETECTING) + +/* Placeholders for a real jump opcode set during backpatch chain fixup. */ +OPDEF(JSOP_BACKPATCH, 149,"backpatch",NULL, 3, 0, 0, 0, JOF_JUMP|JOF_BACKPATCH) +OPDEF(JSOP_BACKPATCH_POP, 150,"backpatch_pop",NULL, 3, 1, 0, 0, JOF_JUMP|JOF_BACKPATCH) + +/* Set pending exception from the stack, to trigger rethrow. */ +OPDEF(JSOP_THROWING, 151,"throwing", NULL, 1, 1, 0, 0, JOF_BYTE) + +/* Set and get return value pseudo-register in stack frame. */ +OPDEF(JSOP_SETRVAL, 152,"setrval", NULL, 1, 1, 0, 0, JOF_BYTE) +OPDEF(JSOP_RETRVAL, 153,"retrval", NULL, 1, 0, 0, 0, JOF_BYTE) + +/* Optimized global variable ops (we don't bother doing a JSOP_FORGVAR op). */ +OPDEF(JSOP_GETGVAR, 154,"getgvar", NULL, 3, 0, 1, 19, JOF_CONST|JOF_NAME) +OPDEF(JSOP_SETGVAR, 155,"setgvar", NULL, 3, 1, 1, 3, JOF_CONST|JOF_NAME|JOF_SET|JOF_ASSIGNING|JOF_DETECTING) +OPDEF(JSOP_INCGVAR, 156,"incgvar", NULL, 3, 0, 1, 15, JOF_CONST|JOF_NAME|JOF_INC) +OPDEF(JSOP_DECGVAR, 157,"decgvar", NULL, 3, 0, 1, 15, JOF_CONST|JOF_NAME|JOF_DEC) +OPDEF(JSOP_GVARINC, 158,"gvarinc", NULL, 3, 0, 1, 15, JOF_CONST|JOF_NAME|JOF_INC|JOF_POST) +OPDEF(JSOP_GVARDEC, 159,"gvardec", NULL, 3, 0, 1, 15, JOF_CONST|JOF_NAME|JOF_DEC|JOF_POST) + +/* Regular expression literal requiring special "fork on exec" handling. */ +OPDEF(JSOP_REGEXP, 160,"regexp", NULL, 3, 0, 1, 19, JOF_CONST) + +/* XML (ECMA-357, a.k.a. "E4X") support. */ +OPDEF(JSOP_DEFXMLNS, 161,"defxmlns", NULL, 1, 1, 0, 0, JOF_BYTE) +OPDEF(JSOP_ANYNAME, 162,"anyname", NULL, 1, 0, 1, 19, JOF_BYTE|JOF_XMLNAME) +OPDEF(JSOP_QNAMEPART, 163,"qnamepart", NULL, 3, 0, 1, 19, JOF_CONST|JOF_XMLNAME) +OPDEF(JSOP_QNAMECONST, 164,"qnameconst", NULL, 3, 1, 1, 19, JOF_CONST|JOF_XMLNAME) +OPDEF(JSOP_QNAME, 165,"qname", NULL, 1, 2, 1, 0, JOF_BYTE|JOF_XMLNAME) +OPDEF(JSOP_TOATTRNAME, 166,"toattrname", NULL, 1, 1, 1, 19, JOF_BYTE|JOF_XMLNAME) +OPDEF(JSOP_TOATTRVAL, 167,"toattrval", NULL, 1, 1, 1, 19, JOF_BYTE) +OPDEF(JSOP_ADDATTRNAME, 168,"addattrname",NULL, 1, 2, 1, 13, JOF_BYTE) +OPDEF(JSOP_ADDATTRVAL, 169,"addattrval", NULL, 1, 2, 1, 13, JOF_BYTE) +OPDEF(JSOP_BINDXMLNAME, 170,"bindxmlname",NULL, 1, 1, 2, 3, JOF_BYTE|JOF_SET|JOF_ASSIGNING) +OPDEF(JSOP_SETXMLNAME, 171,"setxmlname", NULL, 1, 3, 1, 3, JOF_BYTE|JOF_SET|JOF_ASSIGNING|JOF_DETECTING) +OPDEF(JSOP_XMLNAME, 172,"xmlname", NULL, 1, 1, 1, 19, JOF_BYTE) +OPDEF(JSOP_DESCENDANTS, 173,"descendants",NULL, 1, 2, 1, 18, JOF_BYTE) +OPDEF(JSOP_FILTER, 174,"filter", NULL, 3, 1, 1, 0, JOF_JUMP) +OPDEF(JSOP_ENDFILTER, 175,"endfilter", NULL, 1, 1, 0, 18, JOF_BYTE) +OPDEF(JSOP_TOXML, 176,"toxml", NULL, 1, 1, 1, 19, JOF_BYTE) +OPDEF(JSOP_TOXMLLIST, 177,"toxmllist", NULL, 1, 1, 1, 19, JOF_BYTE) +OPDEF(JSOP_XMLTAGEXPR, 178,"xmltagexpr", NULL, 1, 1, 1, 0, JOF_BYTE) +OPDEF(JSOP_XMLELTEXPR, 179,"xmleltexpr", NULL, 1, 1, 1, 0, JOF_BYTE) +OPDEF(JSOP_XMLOBJECT, 180,"xmlobject", NULL, 3, 0, 1, 19, JOF_CONST) +OPDEF(JSOP_XMLCDATA, 181,"xmlcdata", NULL, 3, 0, 1, 19, JOF_CONST) +OPDEF(JSOP_XMLCOMMENT, 182,"xmlcomment", NULL, 3, 0, 1, 19, JOF_CONST) +OPDEF(JSOP_XMLPI, 183,"xmlpi", NULL, 3, 1, 1, 19, JOF_CONST) +OPDEF(JSOP_GETMETHOD, 184,"getmethod", NULL, 3, 1, 1, 18, JOF_CONST|JOF_PROP) +OPDEF(JSOP_GETFUNNS, 185,"getfunns", NULL, 1, 0, 1, 19, JOF_BYTE) +OPDEF(JSOP_FOREACH, 186,"foreach", NULL, 1, 1, 1, 0, JOF_BYTE) +OPDEF(JSOP_DELDESC, 187,"deldesc", NULL, 1, 2, 1, 17, JOF_BYTE |JOF_ELEM|JOF_DEL) + +/* + * Opcodes for extended literal addressing, using unsigned 24-bit immediate + * operands to hold integer operands (JSOP_UINT24), extended atom indexes in + * script->atomMap (JSOP_LITERAL, JSOP_FINDNAME), and ops prefixed by such + * atom index immediates (JSOP_LITOPX). See jsemit.c, EmitAtomIndexOp. + */ +OPDEF(JSOP_UINT24, 188,"uint24", NULL, 4, 0, 1, 16, JOF_UINT24) +OPDEF(JSOP_LITERAL, 189,"literal", NULL, 4, 0, 1, 19, JOF_UINT24) +OPDEF(JSOP_FINDNAME, 190,"findname", NULL, 4, 0, 2, 0, JOF_UINT24) +OPDEF(JSOP_LITOPX, 191,"litopx", NULL, 5, 0, 0, 0, JOF_LITOPX) + +/* + * Opcodes to help the decompiler deal with XML. + */ +OPDEF(JSOP_STARTXML, 192,"startxml", NULL, 1, 0, 0, 0, JOF_BYTE) +OPDEF(JSOP_STARTXMLEXPR, 193,"startxmlexpr",NULL, 1, 0, 0, 0, JOF_BYTE) +OPDEF(JSOP_SETMETHOD, 194,"setmethod", NULL, 3, 2, 1, 3, JOF_CONST|JOF_PROP|JOF_SET|JOF_ASSIGNING|JOF_DETECTING) + +/* + * Stop interpretation, emitted at end of script to save the threaded bytecode + * interpreter an extra branch test on every DO_NEXT_OP (see jsinterp.c). + */ +OPDEF(JSOP_STOP, 195,"stop", NULL, 1, 0, 0, 0, JOF_BYTE) + +/* + * Get an extant property or element value, throwing ReferenceError if the + * identified property does not exist. + */ +OPDEF(JSOP_GETXPROP, 196,"getxprop", NULL, 3, 1, 1, 18, JOF_CONST|JOF_PROP) +OPDEF(JSOP_GETXELEM, 197,"getxelem", NULL, 1, 2, 1, 18, JOF_BYTE |JOF_ELEM|JOF_LEFTASSOC) + +/* + * Specialized JSOP_TYPEOF to avoid reporting undefined for typeof(0, undef). + */ +OPDEF(JSOP_TYPEOFEXPR, 198,js_typeof_str, NULL, 1, 1, 1, 15, JOF_BYTE|JOF_DETECTING) + +/* + * Block-local scope support. + */ +OPDEF(JSOP_ENTERBLOCK, 199,"enterblock", NULL, 3, 0, 0, 0, JOF_CONST) +OPDEF(JSOP_LEAVEBLOCK, 200,"leaveblock", NULL, 3, 0, 0, 0, JOF_UINT16) +OPDEF(JSOP_GETLOCAL, 201,"getlocal", NULL, 3, 0, 1, 19, JOF_LOCAL|JOF_NAME) +OPDEF(JSOP_SETLOCAL, 202,"setlocal", NULL, 3, 1, 1, 3, JOF_LOCAL|JOF_NAME|JOF_SET) +OPDEF(JSOP_INCLOCAL, 203,"inclocal", NULL, 3, 0, 1, 15, JOF_LOCAL|JOF_NAME|JOF_INC) +OPDEF(JSOP_DECLOCAL, 204,"declocal", NULL, 3, 0, 1, 15, JOF_LOCAL|JOF_NAME|JOF_DEC) +OPDEF(JSOP_LOCALINC, 205,"localinc", NULL, 3, 0, 1, 15, JOF_LOCAL|JOF_NAME|JOF_INC|JOF_POST) +OPDEF(JSOP_LOCALDEC, 206,"localdec", NULL, 3, 0, 1, 15, JOF_LOCAL|JOF_NAME|JOF_DEC|JOF_POST) +OPDEF(JSOP_FORLOCAL, 207,"forlocal", NULL, 3, 0, 1, 19, JOF_LOCAL|JOF_NAME|JOF_FOR) + +/* + * Iterator, generator, and array comprehension support. + */ +OPDEF(JSOP_STARTITER, 208,"startiter", NULL, 1, 0, 0, 0, JOF_BYTE) +OPDEF(JSOP_ENDITER, 209,"enditer", NULL, 1, 1, 0, 0, JOF_BYTE) +OPDEF(JSOP_GENERATOR, 210,"generator", NULL, 1, 0, 0, 0, JOF_BYTE) +OPDEF(JSOP_YIELD, 211,"yield", NULL, 1, 1, 1, 1, JOF_BYTE) +OPDEF(JSOP_ARRAYPUSH, 212,"arraypush", NULL, 3, 1, 0, 3, JOF_LOCAL) + +OPDEF(JSOP_FOREACHKEYVAL, 213,"foreachkeyval",NULL, 1, 1, 1, 0, JOF_BYTE) + +/* + * Variant of JSOP_ENUMELEM for destructuring const (const [a, b] = ...). + */ +OPDEF(JSOP_ENUMCONSTELEM, 214,"enumconstelem",NULL, 1, 3, 0, 3, JOF_BYTE|JOF_SET|JOF_ASSIGNING) + +/* + * Variant of JSOP_LEAVEBLOCK has a result on the stack above the locals, + * which must be moved down when the block pops. + */ +OPDEF(JSOP_LEAVEBLOCKEXPR,215,"leaveblockexpr",NULL, 3, 0, 0, 1, JOF_UINT16) |