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siliconforks |
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/* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*- |
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* vim: set ts=8 sw=4 et tw=0 ft=C: |
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* |
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* ***** BEGIN LICENSE BLOCK ***** |
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* Version: MPL 1.1/GPL 2.0/LGPL 2.1 |
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* |
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* The contents of this file are subject to the Mozilla Public License Version |
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* 1.1 (the "License"); you may not use this file except in compliance with |
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* the License. You may obtain a copy of the License at |
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* http://www.mozilla.org/MPL/ |
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* |
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* Software distributed under the License is distributed on an "AS IS" basis, |
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License |
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* for the specific language governing rights and limitations under the |
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* License. |
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* |
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* The Original Code is Mozilla Communicator client code, released |
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* March 31, 1998. |
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* |
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* The Initial Developer of the Original Code is |
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* Netscape Communications Corporation. |
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* Portions created by the Initial Developer are Copyright (C) 1998 |
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* the Initial Developer. All Rights Reserved. |
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* |
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* Contributor(s): |
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* |
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* Alternatively, the contents of this file may be used under the terms of |
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* either of the GNU General Public License Version 2 or later (the "GPL"), |
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* or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"), |
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* in which case the provisions of the GPL or the LGPL are applicable instead |
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* of those above. If you wish to allow use of your version of this file only |
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* under the terms of either the GPL or the LGPL, and not to allow others to |
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* use your version of this file under the terms of the MPL, indicate your |
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* decision by deleting the provisions above and replace them with the notice |
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* and other provisions required by the GPL or the LGPL. If you do not delete |
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* the provisions above, a recipient may use your version of this file under |
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* the terms of any one of the MPL, the GPL or the LGPL. |
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* |
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* ***** END LICENSE BLOCK ***** */ |
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/* |
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* JavaScript operation bytecodes. If you need to allocate a bytecode, look |
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* for a name of the form JSOP_UNUSED* and claim it. Otherwise, always add at |
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* the end of the table. |
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* |
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* Includers must define an OPDEF macro of the following form: |
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* |
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* #define OPDEF(op,val,name,image,length,nuses,ndefs,prec,format) ... |
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* |
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* Selected arguments can be expanded in initializers. The op argument is |
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* expanded followed by comma in the JSOp enum (jsopcode.h), e.g. The value |
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* field must be dense for now, because jsopcode.c uses an OPDEF() expansion |
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* inside the js_CodeSpec[] initializer. |
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* |
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* Field Description |
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* op Bytecode name, which is the JSOp enumerator name |
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* value Bytecode value, which is the JSOp enumerator value |
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* name C string containing name for disassembler |
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* image C string containing "image" for pretty-printer, null if ugly |
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* length Number of bytes including any immediate operands |
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* nuses Number of stack slots consumed by bytecode, -1 if variadic |
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* ndefs Number of stack slots produced by bytecode, -1 if variadic |
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* prec Operator precedence, zero if not an operator |
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* format Bytecode plus immediate operand encoding format |
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* |
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* Precedence Operators Opcodes |
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* 1 let (x = y) z, yield w JSOP_LEAVEBLOCKEXPR, JSOP_YIELD |
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* 2 , JSOP_POP with SRC_PCDELTA, JSOP_RETURN |
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* 3 =, +=, etc. JSOP_SETNAME, etc. (all JOF_ASSIGNING) |
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* 4 ?: JSOP_IFEQ, JSOP_IFEQX |
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* 5 || JSOP_OR, JSOP_ORX |
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* 6 && JSOP_AND, JSOP_ANDX |
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* 7 | JSOP_BITOR |
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* 8 ^ JSOP_BITXOR |
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* 9 & JSOP_BITAND |
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* 10 ==, !=, etc. JSOP_EQ, JSOP_NE, etc. |
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* 11 <, in, etc. JSOP_LT, JSOP_IN, etc. |
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* 12 <<, >>, >>> JSOP_LSH, JSOP_RSH, JSOP_URSH |
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* 13 +, -, etc. JSOP_ADD, JSOP_SUB, etc. |
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* 14 *, /, % JSOP_MUL, JSOP_DIV, JSOP_MOD |
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* 15 !, ~, etc. JSOP_NOT, JSOP_BITNOT, etc. |
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* 16 3.14, 0, etc. JSOP_DOUBLE, JSOP_ZERO, etc. |
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* 17 delete, new JSOP_DEL*, JSOP_NEW |
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* 18 x.y, f(), etc. JSOP_GETPROP, JSOP_CALL, etc. |
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* 19 x, null, etc. JSOP_NAME, JSOP_NULL, etc. |
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* |
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* The push-numeric-constant operators, JSOP_ZERO, JSOP_DOUBLE, etc., have |
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* lower precedence than the member operators emitted for the . operator, to |
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* cause the decompiler to parenthesize the . left operand, e.g. (0).foo. |
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* Otherwise the . could be taken as a decimal point. We use the same level |
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* 16 for function expressions too, to force parenthesization. |
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* |
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* This file is best viewed with 128 columns: |
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12345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678 |
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*/ |
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/* legend: op val name image len use def prec format */ |
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/* Longstanding JavaScript bytecodes. */ |
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OPDEF(JSOP_INTERRUPT, 0, "interrupt", NULL, 1, 0, 0, 0, JOF_BYTE) |
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OPDEF(JSOP_PUSH, 1, "push", NULL, 1, 0, 1, 0, JOF_BYTE) |
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OPDEF(JSOP_POPV, 2, "popv", NULL, 1, 1, 0, 2, JOF_BYTE) |
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OPDEF(JSOP_ENTERWITH, 3, "enterwith", NULL, 1, 1, 1, 0, JOF_BYTE|JOF_PARENHEAD) |
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OPDEF(JSOP_LEAVEWITH, 4, "leavewith", NULL, 1, 1, 0, 0, JOF_BYTE) |
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OPDEF(JSOP_RETURN, 5, "return", NULL, 1, 1, 0, 2, JOF_BYTE) |
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OPDEF(JSOP_GOTO, 6, "goto", NULL, 3, 0, 0, 0, JOF_JUMP) |
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OPDEF(JSOP_IFEQ, 7, "ifeq", NULL, 3, 1, 0, 4, JOF_JUMP|JOF_DETECTING) |
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OPDEF(JSOP_IFNE, 8, "ifne", NULL, 3, 1, 0, 0, JOF_JUMP|JOF_PARENHEAD) |
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/* Get the arguments object for the current, lightweight function activation. */ |
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OPDEF(JSOP_ARGUMENTS, 9, js_arguments_str, js_arguments_str, 1, 0, 1, 18, JOF_BYTE) |
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/* ECMA-compliant for-in loop with argument or local loop control. */ |
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OPDEF(JSOP_FORARG, 10, "forarg", NULL, 3, 0, 1, 19, JOF_QARG|JOF_NAME|JOF_FOR) |
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OPDEF(JSOP_FORLOCAL, 11, "forlocal", NULL, 3, 0, 1, 19, JOF_LOCAL|JOF_NAME|JOF_FOR) |
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/* More longstanding bytecodes. */ |
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OPDEF(JSOP_DUP, 12, "dup", NULL, 1, 1, 2, 0, JOF_BYTE) |
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OPDEF(JSOP_DUP2, 13, "dup2", NULL, 1, 2, 4, 0, JOF_BYTE) |
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OPDEF(JSOP_SETCONST, 14, "setconst", NULL, 3, 1, 1, 3, JOF_ATOM|JOF_NAME|JOF_SET) |
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OPDEF(JSOP_BITOR, 15, "bitor", "|", 1, 2, 1, 7, JOF_BYTE|JOF_LEFTASSOC) |
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OPDEF(JSOP_BITXOR, 16, "bitxor", "^", 1, 2, 1, 8, JOF_BYTE|JOF_LEFTASSOC) |
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OPDEF(JSOP_BITAND, 17, "bitand", "&", 1, 2, 1, 9, JOF_BYTE|JOF_LEFTASSOC) |
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OPDEF(JSOP_EQ, 18, "eq", "==", 1, 2, 1, 10, JOF_BYTE|JOF_LEFTASSOC|JOF_DETECTING) |
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OPDEF(JSOP_NE, 19, "ne", "!=", 1, 2, 1, 10, JOF_BYTE|JOF_LEFTASSOC|JOF_DETECTING) |
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OPDEF(JSOP_LT, 20, "lt", "<", 1, 2, 1, 11, JOF_BYTE|JOF_LEFTASSOC) |
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OPDEF(JSOP_LE, 21, "le", "<=", 1, 2, 1, 11, JOF_BYTE|JOF_LEFTASSOC) |
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OPDEF(JSOP_GT, 22, "gt", ">", 1, 2, 1, 11, JOF_BYTE|JOF_LEFTASSOC) |
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OPDEF(JSOP_GE, 23, "ge", ">=", 1, 2, 1, 11, JOF_BYTE|JOF_LEFTASSOC) |
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OPDEF(JSOP_LSH, 24, "lsh", "<<", 1, 2, 1, 12, JOF_BYTE|JOF_LEFTASSOC) |
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OPDEF(JSOP_RSH, 25, "rsh", ">>", 1, 2, 1, 12, JOF_BYTE|JOF_LEFTASSOC) |
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OPDEF(JSOP_URSH, 26, "ursh", ">>>", 1, 2, 1, 12, JOF_BYTE|JOF_LEFTASSOC) |
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OPDEF(JSOP_ADD, 27, "add", "+", 1, 2, 1, 13, JOF_BYTE|JOF_LEFTASSOC) |
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OPDEF(JSOP_SUB, 28, "sub", "-", 1, 2, 1, 13, JOF_BYTE|JOF_LEFTASSOC) |
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OPDEF(JSOP_MUL, 29, "mul", "*", 1, 2, 1, 14, JOF_BYTE|JOF_LEFTASSOC) |
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OPDEF(JSOP_DIV, 30, "div", "/", 1, 2, 1, 14, JOF_BYTE|JOF_LEFTASSOC) |
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OPDEF(JSOP_MOD, 31, "mod", "%", 1, 2, 1, 14, JOF_BYTE|JOF_LEFTASSOC) |
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OPDEF(JSOP_NOT, 32, "not", "!", 1, 1, 1, 15, JOF_BYTE|JOF_DETECTING) |
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OPDEF(JSOP_BITNOT, 33, "bitnot", "~", 1, 1, 1, 15, JOF_BYTE) |
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OPDEF(JSOP_NEG, 34, "neg", "- ", 1, 1, 1, 15, JOF_BYTE) |
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OPDEF(JSOP_NEW, 35, js_new_str, NULL, 3, -1, 1, 17, JOF_UINT16|JOF_INVOKE) |
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OPDEF(JSOP_DELNAME, 36, "delname", NULL, 3, 0, 1, 17, JOF_ATOM|JOF_NAME|JOF_DEL) |
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OPDEF(JSOP_DELPROP, 37, "delprop", NULL, 3, 1, 1, 17, JOF_ATOM|JOF_PROP|JOF_DEL) |
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OPDEF(JSOP_DELELEM, 38, "delelem", NULL, 1, 2, 1, 17, JOF_BYTE |JOF_ELEM|JOF_DEL) |
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OPDEF(JSOP_TYPEOF, 39, js_typeof_str,NULL, 1, 1, 1, 15, JOF_BYTE|JOF_DETECTING) |
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OPDEF(JSOP_VOID, 40, js_void_str, NULL, 1, 1, 1, 15, JOF_BYTE) |
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OPDEF(JSOP_INCNAME, 41, "incname", NULL, 3, 0, 1, 15, JOF_ATOM|JOF_NAME|JOF_INC|JOF_TMPSLOT2) |
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OPDEF(JSOP_INCPROP, 42, "incprop", NULL, 3, 1, 1, 15, JOF_ATOM|JOF_PROP|JOF_INC|JOF_TMPSLOT2) |
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OPDEF(JSOP_INCELEM, 43, "incelem", NULL, 1, 2, 1, 15, JOF_BYTE |JOF_ELEM|JOF_INC|JOF_TMPSLOT2) |
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OPDEF(JSOP_DECNAME, 44, "decname", NULL, 3, 0, 1, 15, JOF_ATOM|JOF_NAME|JOF_DEC|JOF_TMPSLOT2) |
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OPDEF(JSOP_DECPROP, 45, "decprop", NULL, 3, 1, 1, 15, JOF_ATOM|JOF_PROP|JOF_DEC|JOF_TMPSLOT2) |
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OPDEF(JSOP_DECELEM, 46, "decelem", NULL, 1, 2, 1, 15, JOF_BYTE |JOF_ELEM|JOF_DEC|JOF_TMPSLOT2) |
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OPDEF(JSOP_NAMEINC, 47, "nameinc", NULL, 3, 0, 1, 15, JOF_ATOM|JOF_NAME|JOF_INC|JOF_POST|JOF_TMPSLOT2) |
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OPDEF(JSOP_PROPINC, 48, "propinc", NULL, 3, 1, 1, 15, JOF_ATOM|JOF_PROP|JOF_INC|JOF_POST|JOF_TMPSLOT2) |
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OPDEF(JSOP_ELEMINC, 49, "eleminc", NULL, 1, 2, 1, 15, JOF_BYTE |JOF_ELEM|JOF_INC|JOF_POST|JOF_TMPSLOT2) |
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OPDEF(JSOP_NAMEDEC, 50, "namedec", NULL, 3, 0, 1, 15, JOF_ATOM|JOF_NAME|JOF_DEC|JOF_POST|JOF_TMPSLOT2) |
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OPDEF(JSOP_PROPDEC, 51, "propdec", NULL, 3, 1, 1, 15, JOF_ATOM|JOF_PROP|JOF_DEC|JOF_POST|JOF_TMPSLOT2) |
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OPDEF(JSOP_ELEMDEC, 52, "elemdec", NULL, 1, 2, 1, 15, JOF_BYTE |JOF_ELEM|JOF_DEC|JOF_POST|JOF_TMPSLOT2) |
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OPDEF(JSOP_GETPROP, 53, "getprop", NULL, 3, 1, 1, 18, JOF_ATOM|JOF_PROP) |
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OPDEF(JSOP_SETPROP, 54, "setprop", NULL, 3, 2, 1, 3, JOF_ATOM|JOF_PROP|JOF_SET|JOF_DETECTING) |
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OPDEF(JSOP_GETELEM, 55, "getelem", NULL, 1, 2, 1, 18, JOF_BYTE |JOF_ELEM|JOF_LEFTASSOC) |
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OPDEF(JSOP_SETELEM, 56, "setelem", NULL, 1, 3, 1, 3, JOF_BYTE |JOF_ELEM|JOF_SET|JOF_DETECTING) |
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OPDEF(JSOP_CALLNAME, 57, "callname", NULL, 3, 0, 2, 19, JOF_ATOM|JOF_NAME|JOF_CALLOP) |
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OPDEF(JSOP_CALL, 58, "call", NULL, 3, -1, 1, 18, JOF_UINT16|JOF_INVOKE) |
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OPDEF(JSOP_NAME, 59, "name", NULL, 3, 0, 1, 19, JOF_ATOM|JOF_NAME) |
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OPDEF(JSOP_DOUBLE, 60, "double", NULL, 3, 0, 1, 16, JOF_ATOM) |
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OPDEF(JSOP_STRING, 61, "string", NULL, 3, 0, 1, 19, JOF_ATOM) |
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OPDEF(JSOP_ZERO, 62, "zero", "0", 1, 0, 1, 16, JOF_BYTE) |
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OPDEF(JSOP_ONE, 63, "one", "1", 1, 0, 1, 16, JOF_BYTE) |
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OPDEF(JSOP_NULL, 64, js_null_str, js_null_str, 1, 0, 1, 19, JOF_BYTE) |
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OPDEF(JSOP_THIS, 65, js_this_str, js_this_str, 1, 0, 1, 19, JOF_BYTE) |
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OPDEF(JSOP_FALSE, 66, js_false_str, js_false_str, 1, 0, 1, 19, JOF_BYTE) |
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OPDEF(JSOP_TRUE, 67, js_true_str, js_true_str, 1, 0, 1, 19, JOF_BYTE) |
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OPDEF(JSOP_OR, 68, "or", NULL, 3, 1, 0, 5, JOF_JUMP|JOF_DETECTING|JOF_LEFTASSOC) |
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OPDEF(JSOP_AND, 69, "and", NULL, 3, 1, 0, 6, JOF_JUMP|JOF_DETECTING|JOF_LEFTASSOC) |
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/* The switch bytecodes have variable length. */ |
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OPDEF(JSOP_TABLESWITCH, 70, "tableswitch", NULL, -1, 1, 0, 0, JOF_TABLESWITCH|JOF_DETECTING|JOF_PARENHEAD) |
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OPDEF(JSOP_LOOKUPSWITCH, 71, "lookupswitch", NULL, -1, 1, 0, 0, JOF_LOOKUPSWITCH|JOF_DETECTING|JOF_PARENHEAD) |
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/* New, infallible/transitive identity ops. */ |
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OPDEF(JSOP_STRICTEQ, 72, "stricteq", NULL, 1, 2, 1, 10, JOF_BYTE|JOF_DETECTING) |
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OPDEF(JSOP_STRICTNE, 73, "strictne", NULL, 1, 2, 1, 10, JOF_BYTE|JOF_DETECTING) |
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/* Resume instruction (emitted for the JIT for instructions that can't be restarted). */ |
| 188 |
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OPDEF(JSOP_RESUME, 74, "resume", NULL, 1, 0, 0, 0, JOF_BYTE) |
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/* Variant of JSOP_NULL for default (global) |this| parameter pushing. */ |
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OPDEF(JSOP_NULLTHIS, 75, js_null_str, js_null_str, 1, 0, 1, 19, JOF_BYTE) |
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OPDEF(JSOP_UNUSED76, 76, "unused76", NULL, 1, 0, 0, 0, JOF_BYTE) |
| 194 |
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OPDEF(JSOP_UNUSED77, 77, "unused77", NULL, 1, 0, 0, 0, JOF_BYTE) |
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OPDEF(JSOP_UNUSED78, 78, "unused78", NULL, 1, 0, 0, 0, JOF_BYTE) |
| 196 |
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OPDEF(JSOP_UNUSED79, 79, "unused79", NULL, 1, 0, 0, 0, JOF_BYTE) |
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| 198 |
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/* Push object literal. */ |
| 199 |
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OPDEF(JSOP_OBJECT, 80, "object", NULL, 3, 0, 1, 19, JOF_OBJECT) |
| 200 |
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/* Pop value and discard it. */ |
| 202 |
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OPDEF(JSOP_POP, 81, "pop", NULL, 1, 1, 0, 2, JOF_BYTE) |
| 203 |
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| 204 |
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/* Convert value to number, for unary +. */ |
| 205 |
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OPDEF(JSOP_POS, 82, "pos", "+ ", 1, 1, 1, 15, JOF_BYTE) |
| 206 |
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/* Trap into debugger for breakpoint, etc. */ |
| 208 |
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OPDEF(JSOP_TRAP, 83, "trap", NULL, 1, 0, 0, 0, JOF_BYTE) |
| 209 |
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/* Fast get/set ops for function arguments and local variables. */ |
| 211 |
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OPDEF(JSOP_GETARG, 84, "getarg", NULL, 3, 0, 1, 19, JOF_QARG |JOF_NAME) |
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OPDEF(JSOP_SETARG, 85, "setarg", NULL, 3, 1, 1, 3, JOF_QARG |JOF_NAME|JOF_SET) |
| 213 |
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OPDEF(JSOP_GETLOCAL, 86,"getlocal", NULL, 3, 0, 1, 19, JOF_LOCAL|JOF_NAME) |
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OPDEF(JSOP_SETLOCAL, 87,"setlocal", NULL, 3, 1, 1, 3, JOF_LOCAL|JOF_NAME|JOF_SET|JOF_DETECTING) |
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/* Push unsigned 16-bit int constant. */ |
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OPDEF(JSOP_UINT16, 88, "uint16", NULL, 3, 0, 1, 16, JOF_UINT16) |
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/* Object and array literal support. */ |
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OPDEF(JSOP_NEWINIT, 89, "newinit", NULL, 2, 0, 1, 19, JOF_INT8) |
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OPDEF(JSOP_ENDINIT, 90, "endinit", NULL, 1, 0, 0, 19, JOF_BYTE) |
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OPDEF(JSOP_INITPROP, 91, "initprop", NULL, 3, 1, 0, 3, JOF_ATOM|JOF_PROP|JOF_SET|JOF_DETECTING) |
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OPDEF(JSOP_INITELEM, 92, "initelem", NULL, 1, 2, 0, 3, JOF_BYTE |JOF_ELEM|JOF_SET|JOF_DETECTING) |
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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 |
|
|
|
| 227 |
|
|
/* Fast inc/dec ops for args and locals. */ |
| 228 |
|
|
OPDEF(JSOP_INCARG, 95, "incarg", NULL, 3, 0, 1, 15, JOF_QARG |JOF_NAME|JOF_INC) |
| 229 |
|
|
OPDEF(JSOP_DECARG, 96, "decarg", NULL, 3, 0, 1, 15, JOF_QARG |JOF_NAME|JOF_DEC) |
| 230 |
|
|
OPDEF(JSOP_ARGINC, 97, "arginc", NULL, 3, 0, 1, 15, JOF_QARG |JOF_NAME|JOF_INC|JOF_POST) |
| 231 |
|
|
OPDEF(JSOP_ARGDEC, 98, "argdec", NULL, 3, 0, 1, 15, JOF_QARG |JOF_NAME|JOF_DEC|JOF_POST) |
| 232 |
|
|
|
| 233 |
|
|
OPDEF(JSOP_INCLOCAL, 99, "inclocal", NULL, 3, 0, 1, 15, JOF_LOCAL|JOF_NAME|JOF_INC) |
| 234 |
|
|
OPDEF(JSOP_DECLOCAL, 100,"declocal", NULL, 3, 0, 1, 15, JOF_LOCAL|JOF_NAME|JOF_DEC) |
| 235 |
|
|
OPDEF(JSOP_LOCALINC, 101,"localinc", NULL, 3, 0, 1, 15, JOF_LOCAL|JOF_NAME|JOF_INC|JOF_POST) |
| 236 |
|
|
OPDEF(JSOP_LOCALDEC, 102,"localdec", NULL, 3, 0, 1, 15, JOF_LOCAL|JOF_NAME|JOF_DEC|JOF_POST) |
| 237 |
|
|
|
| 238 |
|
|
/* |
| 239 |
|
|
* Initialize for-in iterator using the JSITER_* flag bits in this op's uint8 |
| 240 |
|
|
* immediate operand. See also JSOP_ENDITER. |
| 241 |
|
|
*/ |
| 242 |
|
|
OPDEF(JSOP_ITER, 103,"iter", NULL, 2, 1, 1, 0, JOF_UINT8) |
| 243 |
|
|
|
| 244 |
|
|
/* ECMA-compliant for/in ops. */ |
| 245 |
|
|
OPDEF(JSOP_FORNAME, 104,"forname", NULL, 3, 0, 1, 19, JOF_ATOM|JOF_NAME|JOF_FOR) |
| 246 |
|
|
OPDEF(JSOP_FORPROP, 105,"forprop", NULL, 3, 1, 1, 18, JOF_ATOM|JOF_PROP|JOF_FOR) |
| 247 |
|
|
OPDEF(JSOP_FORELEM, 106,"forelem", NULL, 1, 1, 3, 18, JOF_BYTE |JOF_ELEM|JOF_FOR) |
| 248 |
|
|
OPDEF(JSOP_POPN, 107,"popn", NULL, 3, -1, 0, 0, JOF_UINT16) |
| 249 |
|
|
|
| 250 |
|
|
/* ECMA-compliant assignment ops. */ |
| 251 |
|
|
OPDEF(JSOP_BINDNAME, 108,"bindname", NULL, 3, 0, 1, 0, JOF_ATOM|JOF_NAME|JOF_SET) |
| 252 |
|
|
OPDEF(JSOP_SETNAME, 109,"setname", NULL, 3, 2, 1, 3, JOF_ATOM|JOF_NAME|JOF_SET|JOF_DETECTING) |
| 253 |
|
|
|
| 254 |
|
|
/* Exception handling ops. */ |
| 255 |
|
|
OPDEF(JSOP_THROW, 110,js_throw_str, NULL, 1, 1, 0, 0, JOF_BYTE) |
| 256 |
|
|
|
| 257 |
|
|
/* 'in' and 'instanceof' ops. */ |
| 258 |
|
|
OPDEF(JSOP_IN, 111,js_in_str, js_in_str, 1, 2, 1, 11, JOF_BYTE|JOF_LEFTASSOC) |
| 259 |
|
|
OPDEF(JSOP_INSTANCEOF,112,js_instanceof_str,js_instanceof_str,1,2,1,11,JOF_BYTE|JOF_LEFTASSOC) |
| 260 |
|
|
|
| 261 |
|
|
/* debugger op */ |
| 262 |
|
|
OPDEF(JSOP_DEBUGGER, 113,"debugger", NULL, 1, 0, 0, 0, JOF_BYTE) |
| 263 |
|
|
|
| 264 |
|
|
/* gosub/retsub for finally handling */ |
| 265 |
|
|
OPDEF(JSOP_GOSUB, 114,"gosub", NULL, 3, 0, 0, 0, JOF_JUMP) |
| 266 |
|
|
OPDEF(JSOP_RETSUB, 115,"retsub", NULL, 1, 2, 0, 0, JOF_BYTE) |
| 267 |
|
|
|
| 268 |
|
|
/* More exception handling ops. */ |
| 269 |
|
|
OPDEF(JSOP_EXCEPTION, 116,"exception", NULL, 1, 0, 1, 0, JOF_BYTE) |
| 270 |
|
|
|
| 271 |
|
|
/* Embedded lineno to speedup pc->line mapping. */ |
| 272 |
|
|
OPDEF(JSOP_LINENO, 117,"lineno", NULL, 3, 0, 0, 0, JOF_UINT16) |
| 273 |
|
|
|
| 274 |
|
|
/* |
| 275 |
|
|
* ECMA-compliant switch statement ops. |
| 276 |
|
|
* CONDSWITCH is a decompilable NOP; CASE is ===, POP, jump if true, re-push |
| 277 |
|
|
* lval if false; and DEFAULT is POP lval and GOTO. |
| 278 |
|
|
*/ |
| 279 |
|
|
OPDEF(JSOP_CONDSWITCH,118,"condswitch", NULL, 1, 0, 0, 0, JOF_BYTE|JOF_PARENHEAD) |
| 280 |
|
|
OPDEF(JSOP_CASE, 119,"case", NULL, 3, 2, 1, 0, JOF_JUMP) |
| 281 |
|
|
OPDEF(JSOP_DEFAULT, 120,"default", NULL, 3, 1, 0, 0, JOF_JUMP) |
| 282 |
|
|
|
| 283 |
|
|
/* |
| 284 |
|
|
* ECMA-compliant call to eval op |
| 285 |
|
|
*/ |
| 286 |
|
|
OPDEF(JSOP_EVAL, 121,"eval", NULL, 3, -1, 1, 18, JOF_UINT16|JOF_INVOKE) |
| 287 |
|
|
|
| 288 |
|
|
/* |
| 289 |
|
|
* ECMA-compliant helper for 'for (x[i] in o)' loops. |
| 290 |
|
|
*/ |
| 291 |
|
|
OPDEF(JSOP_ENUMELEM, 122,"enumelem", NULL, 1, 3, 0, 3, JOF_BYTE |JOF_SET) |
| 292 |
|
|
|
| 293 |
|
|
/* |
| 294 |
|
|
* Getter and setter prefix bytecodes. These modify the next bytecode, either |
| 295 |
|
|
* an assignment or a property initializer code, which then defines a property |
| 296 |
|
|
* getter or setter. |
| 297 |
|
|
*/ |
| 298 |
|
|
OPDEF(JSOP_GETTER, 123,js_getter_str,NULL, 1, 0, 0, 0, JOF_BYTE) |
| 299 |
|
|
OPDEF(JSOP_SETTER, 124,js_setter_str,NULL, 1, 0, 0, 0, JOF_BYTE) |
| 300 |
|
|
|
| 301 |
|
|
/* |
| 302 |
|
|
* Prolog bytecodes for defining function, var, and const names. |
| 303 |
|
|
*/ |
| 304 |
|
|
OPDEF(JSOP_DEFFUN, 125,"deffun", NULL, 3, 0, 0, 0, JOF_OBJECT|JOF_DECLARING) |
| 305 |
|
|
OPDEF(JSOP_DEFCONST, 126,"defconst", NULL, 3, 0, 0, 0, JOF_ATOM|JOF_DECLARING) |
| 306 |
|
|
OPDEF(JSOP_DEFVAR, 127,"defvar", NULL, 3, 0, 0, 0, JOF_ATOM|JOF_DECLARING) |
| 307 |
|
|
|
| 308 |
|
|
/* Auto-clone (if needed due to re-parenting) and push an anonymous function. */ |
| 309 |
|
|
OPDEF(JSOP_ANONFUNOBJ, 128, "anonfunobj", NULL, 3, 0, 1, 19, JOF_OBJECT) |
| 310 |
|
|
|
| 311 |
|
|
/* ECMA ed. 3 named function expression. */ |
| 312 |
|
|
OPDEF(JSOP_NAMEDFUNOBJ, 129, "namedfunobj", NULL, 3, 0, 1, 19, JOF_OBJECT) |
| 313 |
|
|
|
| 314 |
|
|
/* |
| 315 |
|
|
* Like JSOP_SETLOCAL, but specialized to avoid requiring JSOP_POP immediately |
| 316 |
|
|
* after to throw away the exception value. |
| 317 |
|
|
*/ |
| 318 |
|
|
OPDEF(JSOP_SETLOCALPOP, 130, "setlocalpop", NULL, 3, 1, 0, 3, JOF_LOCAL|JOF_NAME|JOF_SET) |
| 319 |
|
|
|
| 320 |
|
|
/* Parenthesization opcode to help the decompiler. */ |
| 321 |
|
|
OPDEF(JSOP_GROUP, 131, "group", NULL, 1, 0, 0, 19, JOF_BYTE) |
| 322 |
|
|
|
| 323 |
|
|
/* |
| 324 |
|
|
* Host object extension: given 'o.item(i) = j', the left-hand side compiles |
| 325 |
|
|
* JSOP_SETCALL, rather than JSOP_CALL. |
| 326 |
|
|
*/ |
| 327 |
|
|
OPDEF(JSOP_SETCALL, 132, "setcall", NULL, 3, -1, 2, 18, JOF_UINT16|JOF_SET) |
| 328 |
|
|
|
| 329 |
|
|
/* |
| 330 |
|
|
* Exception handling no-op, for more economical byte-coding than SRC_TRYFIN |
| 331 |
|
|
* srcnote-annotated JSOP_NOPs and to simply stack balance handling. |
| 332 |
|
|
*/ |
| 333 |
|
|
OPDEF(JSOP_TRY, 133,"try", NULL, 1, 0, 0, 0, JOF_BYTE) |
| 334 |
|
|
OPDEF(JSOP_FINALLY, 134,"finally", NULL, 1, 0, 2, 0, JOF_BYTE) |
| 335 |
|
|
|
| 336 |
|
|
/* |
| 337 |
|
|
* Generic nop for the decompiler. |
| 338 |
|
|
*/ |
| 339 |
|
|
OPDEF(JSOP_NOP, 135,"nop", NULL, 1, 0, 0, 0, JOF_BYTE) |
| 340 |
|
|
|
| 341 |
|
|
/* |
| 342 |
|
|
* Bytecodes that avoid making an arguments object in most cases: |
| 343 |
|
|
* JSOP_ARGSUB gets arguments[i] from fp->argv, iff i is in [0, fp->argc-1]. |
| 344 |
|
|
* JSOP_ARGCNT returns fp->argc. |
| 345 |
|
|
*/ |
| 346 |
|
|
OPDEF(JSOP_ARGSUB, 136,"argsub", NULL, 3, 0, 1, 18, JOF_QARG |JOF_NAME) |
| 347 |
|
|
OPDEF(JSOP_ARGCNT, 137,"argcnt", NULL, 1, 0, 1, 18, JOF_BYTE) |
| 348 |
|
|
|
| 349 |
|
|
/* |
| 350 |
|
|
* Define a local function object as a local variable. |
| 351 |
|
|
* The local variable's slot number is the first immediate two-byte operand. |
| 352 |
|
|
* The function object's atom index is the second immediate operand. |
| 353 |
|
|
*/ |
| 354 |
|
|
OPDEF(JSOP_DEFLOCALFUN, 138,"deflocalfun",NULL, 5, 0, 0, 0, JOF_SLOTOBJECT|JOF_DECLARING) |
| 355 |
|
|
|
| 356 |
|
|
/* Extended jumps. */ |
| 357 |
|
|
OPDEF(JSOP_GOTOX, 139,"gotox", NULL, 5, 0, 0, 0, JOF_JUMPX) |
| 358 |
|
|
OPDEF(JSOP_IFEQX, 140,"ifeqx", NULL, 5, 1, 0, 4, JOF_JUMPX|JOF_DETECTING) |
| 359 |
|
|
OPDEF(JSOP_IFNEX, 141,"ifnex", NULL, 5, 1, 0, 0, JOF_JUMPX|JOF_PARENHEAD) |
| 360 |
|
|
OPDEF(JSOP_ORX, 142,"orx", NULL, 5, 1, 0, 5, JOF_JUMPX|JOF_DETECTING) |
| 361 |
|
|
OPDEF(JSOP_ANDX, 143,"andx", NULL, 5, 1, 0, 6, JOF_JUMPX|JOF_DETECTING) |
| 362 |
|
|
OPDEF(JSOP_GOSUBX, 144,"gosubx", NULL, 5, 0, 0, 0, JOF_JUMPX) |
| 363 |
|
|
OPDEF(JSOP_CASEX, 145,"casex", NULL, 5, 2, 1, 0, JOF_JUMPX) |
| 364 |
|
|
OPDEF(JSOP_DEFAULTX, 146,"defaultx", NULL, 5, 1, 0, 0, JOF_JUMPX) |
| 365 |
|
|
OPDEF(JSOP_TABLESWITCHX, 147,"tableswitchx",NULL, -1, 1, 0, 0, JOF_TABLESWITCHX|JOF_DETECTING|JOF_PARENHEAD) |
| 366 |
|
|
OPDEF(JSOP_LOOKUPSWITCHX, 148,"lookupswitchx",NULL, -1, 1, 0, 0, JOF_LOOKUPSWITCHX|JOF_DETECTING|JOF_PARENHEAD) |
| 367 |
|
|
|
| 368 |
|
|
/* Placeholders for a real jump opcode set during backpatch chain fixup. */ |
| 369 |
|
|
OPDEF(JSOP_BACKPATCH, 149,"backpatch",NULL, 3, 0, 0, 0, JOF_JUMP|JOF_BACKPATCH) |
| 370 |
|
|
OPDEF(JSOP_BACKPATCH_POP, 150,"backpatch_pop",NULL, 3, 1, 0, 0, JOF_JUMP|JOF_BACKPATCH) |
| 371 |
|
|
|
| 372 |
|
|
/* Set pending exception from the stack, to trigger rethrow. */ |
| 373 |
|
|
OPDEF(JSOP_THROWING, 151,"throwing", NULL, 1, 1, 0, 0, JOF_BYTE) |
| 374 |
|
|
|
| 375 |
|
|
/* Set and get return value pseudo-register in stack frame. */ |
| 376 |
|
|
OPDEF(JSOP_SETRVAL, 152,"setrval", NULL, 1, 1, 0, 2, JOF_BYTE) |
| 377 |
|
|
OPDEF(JSOP_RETRVAL, 153,"retrval", NULL, 1, 0, 0, 0, JOF_BYTE) |
| 378 |
|
|
|
| 379 |
|
|
/* Optimized global variable ops (we don't bother doing a JSOP_FORGVAR op). */ |
| 380 |
|
|
OPDEF(JSOP_GETGVAR, 154,"getgvar", NULL, 3, 0, 1, 19, JOF_ATOM|JOF_NAME) |
| 381 |
|
|
OPDEF(JSOP_SETGVAR, 155,"setgvar", NULL, 3, 1, 1, 3, JOF_ATOM|JOF_NAME|JOF_SET|JOF_DETECTING) |
| 382 |
|
|
OPDEF(JSOP_INCGVAR, 156,"incgvar", NULL, 3, 0, 1, 15, JOF_ATOM|JOF_NAME|JOF_INC|JOF_TMPSLOT2) |
| 383 |
|
|
OPDEF(JSOP_DECGVAR, 157,"decgvar", NULL, 3, 0, 1, 15, JOF_ATOM|JOF_NAME|JOF_DEC|JOF_TMPSLOT2) |
| 384 |
|
|
OPDEF(JSOP_GVARINC, 158,"gvarinc", NULL, 3, 0, 1, 15, JOF_ATOM|JOF_NAME|JOF_INC|JOF_POST|JOF_TMPSLOT2) |
| 385 |
|
|
OPDEF(JSOP_GVARDEC, 159,"gvardec", NULL, 3, 0, 1, 15, JOF_ATOM|JOF_NAME|JOF_DEC|JOF_POST|JOF_TMPSLOT2) |
| 386 |
|
|
|
| 387 |
|
|
/* Regular expression literal requiring special "fork on exec" handling. */ |
| 388 |
|
|
OPDEF(JSOP_REGEXP, 160,"regexp", NULL, 3, 0, 1, 19, JOF_REGEXP) |
| 389 |
|
|
|
| 390 |
|
|
/* XML (ECMA-357, a.k.a. "E4X") support. */ |
| 391 |
|
|
OPDEF(JSOP_DEFXMLNS, 161,"defxmlns", NULL, 1, 1, 0, 0, JOF_BYTE) |
| 392 |
|
|
OPDEF(JSOP_ANYNAME, 162,"anyname", NULL, 1, 0, 1, 19, JOF_BYTE|JOF_XMLNAME) |
| 393 |
|
|
OPDEF(JSOP_QNAMEPART, 163,"qnamepart", NULL, 3, 0, 1, 19, JOF_ATOM|JOF_XMLNAME) |
| 394 |
|
|
OPDEF(JSOP_QNAMECONST, 164,"qnameconst", NULL, 3, 1, 1, 19, JOF_ATOM|JOF_XMLNAME) |
| 395 |
|
|
OPDEF(JSOP_QNAME, 165,"qname", NULL, 1, 2, 1, 0, JOF_BYTE|JOF_XMLNAME) |
| 396 |
|
|
OPDEF(JSOP_TOATTRNAME, 166,"toattrname", NULL, 1, 1, 1, 19, JOF_BYTE|JOF_XMLNAME) |
| 397 |
|
|
OPDEF(JSOP_TOATTRVAL, 167,"toattrval", NULL, 1, 1, 1, 19, JOF_BYTE) |
| 398 |
|
|
OPDEF(JSOP_ADDATTRNAME, 168,"addattrname",NULL, 1, 2, 1, 13, JOF_BYTE) |
| 399 |
|
|
OPDEF(JSOP_ADDATTRVAL, 169,"addattrval", NULL, 1, 2, 1, 13, JOF_BYTE) |
| 400 |
|
|
OPDEF(JSOP_BINDXMLNAME, 170,"bindxmlname",NULL, 1, 1, 2, 3, JOF_BYTE|JOF_SET) |
| 401 |
|
|
OPDEF(JSOP_SETXMLNAME, 171,"setxmlname", NULL, 1, 3, 1, 3, JOF_BYTE|JOF_SET|JOF_DETECTING) |
| 402 |
|
|
OPDEF(JSOP_XMLNAME, 172,"xmlname", NULL, 1, 1, 1, 19, JOF_BYTE) |
| 403 |
|
|
OPDEF(JSOP_DESCENDANTS, 173,"descendants",NULL, 1, 2, 1, 18, JOF_BYTE) |
| 404 |
|
|
OPDEF(JSOP_FILTER, 174,"filter", NULL, 3, 1, 1, 0, JOF_JUMP) |
| 405 |
|
|
OPDEF(JSOP_ENDFILTER, 175,"endfilter", NULL, 3, 2, 1, 18, JOF_JUMP) |
| 406 |
|
|
OPDEF(JSOP_TOXML, 176,"toxml", NULL, 1, 1, 1, 19, JOF_BYTE) |
| 407 |
|
|
OPDEF(JSOP_TOXMLLIST, 177,"toxmllist", NULL, 1, 1, 1, 19, JOF_BYTE) |
| 408 |
|
|
OPDEF(JSOP_XMLTAGEXPR, 178,"xmltagexpr", NULL, 1, 1, 1, 0, JOF_BYTE) |
| 409 |
|
|
OPDEF(JSOP_XMLELTEXPR, 179,"xmleltexpr", NULL, 1, 1, 1, 0, JOF_BYTE) |
| 410 |
|
|
OPDEF(JSOP_XMLOBJECT, 180,"xmlobject", NULL, 3, 0, 1, 19, JOF_OBJECT) |
| 411 |
|
|
OPDEF(JSOP_XMLCDATA, 181,"xmlcdata", NULL, 3, 0, 1, 19, JOF_ATOM) |
| 412 |
|
|
OPDEF(JSOP_XMLCOMMENT, 182,"xmlcomment", NULL, 3, 0, 1, 19, JOF_ATOM) |
| 413 |
|
|
OPDEF(JSOP_XMLPI, 183,"xmlpi", NULL, 3, 1, 1, 19, JOF_ATOM) |
| 414 |
|
|
OPDEF(JSOP_CALLPROP, 184,"callprop", NULL, 3, 1, 2, 18, JOF_ATOM|JOF_PROP|JOF_CALLOP) |
| 415 |
|
|
OPDEF(JSOP_GETFUNNS, 185,"getfunns", NULL, 1, 0, 1, 19, JOF_BYTE) |
| 416 |
|
|
|
| 417 |
|
|
/* |
| 418 |
|
|
* Get a display (free) variable from the closure's reserved slots. |
| 419 |
|
|
*/ |
| 420 |
|
|
OPDEF(JSOP_GETUPVAR, 186,"getupvar", NULL, 3, 0, 1, 19, JOF_UINT16|JOF_NAME) |
| 421 |
|
|
|
| 422 |
|
|
OPDEF(JSOP_DELDESC, 187,"deldesc", NULL, 1, 2, 1, 17, JOF_BYTE |JOF_ELEM|JOF_DEL) |
| 423 |
|
|
|
| 424 |
|
|
/* |
| 425 |
|
|
* Opcode to hold 24-bit immediate integer operands. |
| 426 |
|
|
*/ |
| 427 |
|
|
OPDEF(JSOP_UINT24, 188,"uint24", NULL, 4, 0, 1, 16, JOF_UINT24) |
| 428 |
|
|
|
| 429 |
|
|
/* |
| 430 |
|
|
* Opcodes to allow 24-bit atom or object indexes. Whenever an index exceeds |
| 431 |
|
|
* the 16-bit limit, the index-accessing bytecode must be bracketed by |
| 432 |
|
|
* JSOP_INDEXBASE and JSOP_RESETBASE to provide the upper bits of the index. |
| 433 |
|
|
* See jsemit.c, EmitIndexOp. |
| 434 |
|
|
*/ |
| 435 |
|
|
OPDEF(JSOP_INDEXBASE, 189,"atombase", NULL, 2, 0, 0, 0, JOF_UINT8|JOF_INDEXBASE) |
| 436 |
|
|
OPDEF(JSOP_RESETBASE, 190,"resetbase", NULL, 1, 0, 0, 0, JOF_BYTE) |
| 437 |
|
|
OPDEF(JSOP_RESETBASE0, 191,"resetbase0", NULL, 1, 0, 0, 0, JOF_BYTE) |
| 438 |
|
|
|
| 439 |
|
|
/* |
| 440 |
|
|
* Opcodes to help the decompiler deal with XML. |
| 441 |
|
|
*/ |
| 442 |
|
|
OPDEF(JSOP_STARTXML, 192,"startxml", NULL, 1, 0, 0, 0, JOF_BYTE) |
| 443 |
|
|
OPDEF(JSOP_STARTXMLEXPR, 193,"startxmlexpr",NULL, 1, 0, 0, 0, JOF_BYTE) |
| 444 |
|
|
|
| 445 |
|
|
OPDEF(JSOP_CALLELEM, 194, "callelem", NULL, 1, 2, 2, 18, JOF_BYTE |JOF_ELEM|JOF_LEFTASSOC|JOF_CALLOP) |
| 446 |
|
|
|
| 447 |
|
|
/* |
| 448 |
|
|
* Stop interpretation, emitted at end of script to save the threaded bytecode |
| 449 |
|
|
* interpreter an extra branch test on every DO_NEXT_OP (see jsinterp.c). |
| 450 |
|
|
*/ |
| 451 |
|
|
OPDEF(JSOP_STOP, 195,"stop", NULL, 1, 0, 0, 0, JOF_BYTE) |
| 452 |
|
|
|
| 453 |
|
|
/* |
| 454 |
|
|
* Get an extant property value, throwing ReferenceError if the identified |
| 455 |
|
|
* property does not exist. |
| 456 |
|
|
*/ |
| 457 |
|
|
OPDEF(JSOP_GETXPROP, 196,"getxprop", NULL, 3, 1, 1, 18, JOF_ATOM|JOF_PROP) |
| 458 |
|
|
|
| 459 |
|
|
OPDEF(JSOP_CALLXMLNAME, 197, "callxmlname", NULL, 1, 1, 2, 19, JOF_BYTE|JOF_CALLOP) |
| 460 |
|
|
|
| 461 |
|
|
/* |
| 462 |
|
|
* Specialized JSOP_TYPEOF to avoid reporting undefined for typeof(0, undef). |
| 463 |
|
|
*/ |
| 464 |
|
|
OPDEF(JSOP_TYPEOFEXPR, 198,"typeofexpr", NULL, 1, 1, 1, 15, JOF_BYTE|JOF_DETECTING) |
| 465 |
|
|
|
| 466 |
|
|
/* |
| 467 |
|
|
* Block-local scope support. |
| 468 |
|
|
*/ |
| 469 |
|
|
OPDEF(JSOP_ENTERBLOCK, 199,"enterblock", NULL, 3, 0, -1, 0, JOF_OBJECT) |
| 470 |
|
|
OPDEF(JSOP_LEAVEBLOCK, 200,"leaveblock", NULL, 3, -1, 0, 0, JOF_UINT16) |
| 471 |
|
|
OPDEF(JSOP_UNUSED201, 201,"unused201", NULL, 1, 0, 0, 0, JOF_BYTE) |
| 472 |
|
|
OPDEF(JSOP_UNUSED202, 202,"unused202", NULL, 1, 0, 0, 0, JOF_BYTE) |
| 473 |
|
|
OPDEF(JSOP_UNUSED203, 203,"unused203", NULL, 1, 0, 0, 0, JOF_BYTE) |
| 474 |
|
|
OPDEF(JSOP_UNUSED204, 204,"unused204", NULL, 1, 0, 0, 0, JOF_BYTE) |
| 475 |
|
|
OPDEF(JSOP_UNUSED205, 205,"unused205", NULL, 1, 0, 0, 0, JOF_BYTE) |
| 476 |
|
|
OPDEF(JSOP_UNUSED206, 206,"unused206", NULL, 1, 0, 0, 0, JOF_BYTE) |
| 477 |
|
|
OPDEF(JSOP_UNUSED207, 207,"unused207", NULL, 1, 0, 0, 0, JOF_BYTE) |
| 478 |
|
|
|
| 479 |
|
|
/* |
| 480 |
|
|
* Iterator, generator, and array comprehension support. |
| 481 |
|
|
*/ |
| 482 |
|
|
OPDEF(JSOP_FORCONST, 208,"forconst", NULL, 3, 0, 1, 19, JOF_LOCAL|JOF_NAME|JOF_FOR) |
| 483 |
|
|
OPDEF(JSOP_ENDITER, 209,"enditer", NULL, 1, 1, 0, 0, JOF_BYTE|JOF_TMPSLOT) |
| 484 |
|
|
OPDEF(JSOP_GENERATOR, 210,"generator", NULL, 1, 0, 0, 0, JOF_BYTE) |
| 485 |
|
|
OPDEF(JSOP_YIELD, 211,"yield", NULL, 1, 1, 1, 1, JOF_BYTE) |
| 486 |
|
|
OPDEF(JSOP_ARRAYPUSH, 212,"arraypush", NULL, 3, 1, 0, 3, JOF_LOCAL) |
| 487 |
|
|
|
| 488 |
|
|
/* |
| 489 |
|
|
* In the forthcoming great opcode reorg, this should go next to JSOP_GETUPVAR. |
| 490 |
|
|
*/ |
| 491 |
|
|
OPDEF(JSOP_CALLUPVAR, 213, "callupvar", NULL, 3, 0, 2, 19, JOF_UINT16|JOF_NAME|JOF_CALLOP) |
| 492 |
|
|
|
| 493 |
|
|
/* |
| 494 |
|
|
* Variant of JSOP_ENUMELEM for destructuring const (const [a, b] = ...). |
| 495 |
|
|
*/ |
| 496 |
|
|
OPDEF(JSOP_ENUMCONSTELEM, 214,"enumconstelem",NULL, 1, 3, 0, 3, JOF_BYTE|JOF_SET) |
| 497 |
|
|
|
| 498 |
|
|
/* |
| 499 |
|
|
* Variant of JSOP_LEAVEBLOCK has a result on the stack above the locals, |
| 500 |
|
|
* which must be moved down when the block pops. |
| 501 |
|
|
*/ |
| 502 |
|
|
OPDEF(JSOP_LEAVEBLOCKEXPR,215,"leaveblockexpr",NULL, 3, -1, 1, 1, JOF_UINT16) |
| 503 |
|
|
|
| 504 |
|
|
/* |
| 505 |
|
|
* Optimize common JSOP_{THIS,GET{ARG,LOCAL}} -> JSOP_GETPROP cliches. |
| 506 |
|
|
*/ |
| 507 |
|
|
OPDEF(JSOP_GETTHISPROP, 216,"getthisprop", NULL, 3, 0, 1, 18, JOF_ATOM|JOF_VARPROP) |
| 508 |
|
|
OPDEF(JSOP_GETARGPROP, 217,"getargprop", NULL, 5, 0, 1, 18, JOF_SLOTATOM|JOF_VARPROP) |
| 509 |
|
|
OPDEF(JSOP_GETLOCALPROP, 218,"getlocalprop", NULL, 5, 0, 1, 18, JOF_SLOTATOM|JOF_VARPROP) |
| 510 |
|
|
OPDEF(JSOP_UNUSED219, 219,"unused219", NULL, 1, 0, 0, 0, JOF_BYTE) |
| 511 |
|
|
|
| 512 |
|
|
/* |
| 513 |
|
|
* Optimize atom segments 1-3. These must be followed by JSOP_RESETBASE0 after |
| 514 |
|
|
* the opcode that they prefix. |
| 515 |
|
|
*/ |
| 516 |
|
|
OPDEF(JSOP_INDEXBASE1, 220,"atombase1", NULL, 1, 0, 0, 0, JOF_BYTE |JOF_INDEXBASE) |
| 517 |
|
|
OPDEF(JSOP_INDEXBASE2, 221,"atombase2", NULL, 1, 0, 0, 0, JOF_BYTE |JOF_INDEXBASE) |
| 518 |
|
|
OPDEF(JSOP_INDEXBASE3, 222,"atombase3", NULL, 1, 0, 0, 0, JOF_BYTE |JOF_INDEXBASE) |
| 519 |
|
|
|
| 520 |
|
|
OPDEF(JSOP_CALLGVAR, 223, "callgvar", NULL, 3, 0, 2, 19, JOF_ATOM|JOF_NAME|JOF_CALLOP) |
| 521 |
|
|
OPDEF(JSOP_CALLLOCAL, 224, "calllocal", NULL, 3, 0, 2, 19, JOF_LOCAL|JOF_NAME|JOF_CALLOP) |
| 522 |
|
|
OPDEF(JSOP_CALLARG, 225, "callarg", NULL, 3, 0, 2, 19, JOF_QARG |JOF_NAME|JOF_CALLOP) |
| 523 |
|
|
OPDEF(JSOP_UNUSED226, 226, "unused226", NULL, 1, 0, 1, 1, JOF_BYTE) |
| 524 |
|
|
|
| 525 |
|
|
/* |
| 526 |
|
|
* Opcodes to hold 8-bit and 32-bit immediate integer operands. |
| 527 |
|
|
*/ |
| 528 |
|
|
OPDEF(JSOP_INT8, 227, "int8", NULL, 2, 0, 1, 16, JOF_INT8) |
| 529 |
|
|
OPDEF(JSOP_INT32, 228, "int32", NULL, 5, 0, 1, 16, JOF_INT32) |
| 530 |
|
|
|
| 531 |
|
|
/* |
| 532 |
|
|
* Get the value of the 'length' property from a stacked object. |
| 533 |
|
|
*/ |
| 534 |
|
|
OPDEF(JSOP_LENGTH, 229, "length", NULL, 1, 1, 1, 18, JOF_BYTE|JOF_PROP) |
| 535 |
|
|
|
| 536 |
|
|
/* |
| 537 |
|
|
* JSOP_NEWARRAY optimizes array literal evaluation using the interpreter stack. |
| 538 |
|
|
* JSOP_HOLE pushes a JSVAL_HOLE (used with JSOP_NEWINIT and JSOP_NEWARRAY). |
| 539 |
|
|
*/ |
| 540 |
|
|
OPDEF(JSOP_NEWARRAY, 230, "newarray", NULL, 4, -1, 1, 19, JOF_UINT24) |
| 541 |
|
|
OPDEF(JSOP_HOLE, 231, "hole", NULL, 1, 0, 1, 0, JOF_BYTE) |
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