1 /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- 2 * vim: set ts=8 sts=2 et sw=2 tw=80: 3 * This Source Code Form is subject to the terms of the Mozilla Public 4 * License, v. 2.0. If a copy of the MPL was not distributed with this 5 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ 6 7 #ifndef vm_BytecodeFormatFlags_h 8 #define vm_BytecodeFormatFlags_h 9 10 /* 11 * [SMDOC] Bytecode Format flags (JOF_*) 12 */ 13 enum { 14 JOF_BYTE = 0, /* single bytecode, no immediates */ 15 JOF_UINT8 = 1, /* unspecified uint8_t argument */ 16 JOF_UINT16 = 2, /* unspecified uint16_t argument */ 17 JOF_UINT24 = 3, /* unspecified uint24_t argument */ 18 JOF_UINT32 = 4, /* unspecified uint32_t argument */ 19 JOF_INT8 = 5, /* int8_t literal */ 20 JOF_INT32 = 6, /* int32_t literal */ 21 JOF_JUMP = 7, /* int32_t jump offset */ 22 JOF_TABLESWITCH = 8, /* table switch */ 23 JOF_ENVCOORD = 9, /* embedded ScopeCoordinate immediate */ 24 JOF_ARGC = 10, /* uint16_t argument count */ 25 JOF_QARG = 11, /* function argument index */ 26 JOF_LOCAL = 12, /* var or block-local variable */ 27 JOF_RESUMEINDEX = 13, /* yield, await, or gosub resume index */ 28 JOF_ATOM = 14, /* uint32_t constant index */ 29 JOF_OBJECT = 15, /* uint32_t object index */ 30 JOF_REGEXP = 16, /* uint32_t regexp index */ 31 JOF_DOUBLE = 17, /* inline DoubleValue */ 32 JOF_SCOPE = 18, /* uint32_t scope index */ 33 JOF_ICINDEX = 19, /* uint32_t IC index */ 34 JOF_LOOPHEAD = 20, /* JSOp::LoopHead, combines JOF_ICINDEX and JOF_UINT8 */ 35 JOF_BIGINT = 21, /* uint32_t index for BigInt value */ 36 JOF_CLASS_CTOR = 22, /* uint32_t atom index, sourceStart, sourceEnd */ 37 JOF_CODE_OFFSET = 23, /* int32_t bytecode offset */ 38 JOF_TYPEMASK = 0x001f, /* mask for above immediate types */ 39 40 JOF_NAME = 1 << 5, /* name operation */ 41 JOF_PROP = 2 << 5, /* obj.prop operation */ 42 JOF_ELEM = 3 << 5, /* obj[index] operation */ 43 JOF_MODEMASK = 3 << 5, /* mask for above addressing modes */ 44 45 JOF_PROPSET = 1 << 7, /* property/element/name set operation */ 46 JOF_PROPINIT = 1 << 8, /* property/element/name init operation */ 47 // (1 << 9) is unused. 48 JOF_CHECKSLOPPY = 1 << 10, /* op can only be generated in sloppy mode */ 49 JOF_CHECKSTRICT = 1 << 11, /* op can only be generated in strict mode */ 50 JOF_INVOKE = 1 << 12, /* any call, construct, or eval instruction */ 51 JOF_CONSTRUCT = 1 << 13, /* invoke instruction using [[Construct]] entry */ 52 JOF_SPREAD = 1 << 14, /* invoke instruction using spread argument */ 53 JOF_GNAME = 1 << 15, /* predicted global name */ 54 JOF_TYPESET = 1 << 16, /* has an entry in a script's type sets */ 55 JOF_IC = 1 << 17, /* baseline may use an IC for this op */ 56 }; 57 58 #endif /* vm_BytecodeFormatFlags_h */ 59