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-rw-r--r--js/src/vm/BytecodeFormatFlags.h61
1 files changed, 61 insertions, 0 deletions
diff --git a/js/src/vm/BytecodeFormatFlags.h b/js/src/vm/BytecodeFormatFlags.h
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+++ b/js/src/vm/BytecodeFormatFlags.h
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+/* -*- 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 */