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Diffstat (limited to '')
| -rw-r--r-- | js/src/vm/BytecodeFormatFlags.h | 61 |
1 files changed, 61 insertions, 0 deletions
diff --git a/js/src/vm/BytecodeFormatFlags.h b/js/src/vm/BytecodeFormatFlags.h new file mode 100644 index 0000000000..893f0f0823 --- /dev/null +++ b/js/src/vm/BytecodeFormatFlags.h @@ -0,0 +1,61 @@ +/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- + * vim: set ts=8 sts=2 et sw=2 tw=80: + * This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ + +#ifndef vm_BytecodeFormatFlags_h +#define vm_BytecodeFormatFlags_h + +/* + * [SMDOC] Bytecode Format flags (JOF_*) + */ +enum { + JOF_BYTE = 0, /* single bytecode, no immediates */ + JOF_UINT8 = 1, /* unspecified uint8_t argument */ + JOF_UINT16 = 2, /* unspecified uint16_t argument */ + JOF_UINT24 = 3, /* unspecified uint24_t argument */ + JOF_UINT32 = 4, /* unspecified uint32_t argument */ + JOF_INT8 = 5, /* int8_t literal */ + JOF_INT32 = 6, /* int32_t literal */ + JOF_JUMP = 7, /* int32_t jump offset */ + JOF_TABLESWITCH = 8, /* table switch */ + JOF_ENVCOORD = 9, /* embedded ScopeCoordinate immediate */ + JOF_ARGC = 10, /* uint16_t argument count */ + JOF_QARG = 11, /* function argument index */ + JOF_LOCAL = 12, /* var or block-local variable */ + JOF_RESUMEINDEX = 13, /* yield or await resume index */ + JOF_DOUBLE = 14, /* inline DoubleValue */ + JOF_GCTHING = 15, /* uint32_t generic gc-thing index */ + JOF_ATOM = 16, /* uint32_t constant index */ + JOF_OBJECT = 17, /* uint32_t object index */ + JOF_REGEXP = 18, /* uint32_t regexp index */ + JOF_SCOPE = 19, /* uint32_t scope index */ + JOF_BIGINT = 20, /* uint32_t index for BigInt value */ + JOF_ICINDEX = 21, /* uint32_t IC index */ + JOF_LOOPHEAD = 22, /* JSOp::LoopHead, combines JOF_ICINDEX and JOF_UINT8 */ + JOF_TWO_UINT8 = 23, /* A pair of unspecified uint8_t arguments */ + JOF_DEBUGCOORD = 24, /* An embedded ScopeCoordinate immediate that may + traverse DebugEnvironmentProxies*/ + JOF_SHAPE = 25, /* uint32_t shape index */ + JOF_STRING = 26, /* uint32_t constant index */ + JOF_TYPEMASK = 0xFF, /* mask for above immediate types */ + + JOF_NAME = 1 << 8, /* name operation */ + JOF_PROP = 2 << 8, /* obj.prop operation */ + JOF_ELEM = 3 << 8, /* obj[index] operation */ + JOF_MODEMASK = 0xFF << 8, /* mask for above addressing modes */ + + JOF_PROPSET = 1 << 16, /* property/element/name set operation */ + JOF_PROPINIT = 1 << 17, /* property/element/name init operation */ + JOF_CHECKSLOPPY = 1 << 18, /* op can only be generated in sloppy mode */ + JOF_CHECKSTRICT = 1 << 19, /* op can only be generated in strict mode */ + JOF_INVOKE = 1 << 20, /* any call, construct, or eval instruction */ + JOF_CONSTRUCT = 1 << 21, /* invoke instruction using [[Construct]] entry */ + JOF_SPREAD = 1 << 22, /* invoke instruction using spread argument */ + JOF_GNAME = 1 << 23, /* predicted global name */ + JOF_IC = 1 << 24, /* baseline may use an IC for this op */ + JOF_USES_ENV = 1 << 25, /* op uses the frame's environment chain */ +}; + +#endif /* vm_BytecodeFormatFlags_h */ |