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author | Matt A. Tobin <mattatobin@localhost.localdomain> | 2018-02-02 04:16:08 -0500 |
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committer | Matt A. Tobin <mattatobin@localhost.localdomain> | 2018-02-02 04:16:08 -0500 |
commit | 5f8de423f190bbb79a62f804151bc24824fa32d8 (patch) | |
tree | 10027f336435511475e392454359edea8e25895d /js/src/builtin/TypedObjectConstants.h | |
parent | 49ee0794b5d912db1f95dce6eb52d781dc210db5 (diff) | |
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Add m-esr52 at 52.6.0
Diffstat (limited to 'js/src/builtin/TypedObjectConstants.h')
-rw-r--r-- | js/src/builtin/TypedObjectConstants.h | 121 |
1 files changed, 121 insertions, 0 deletions
diff --git a/js/src/builtin/TypedObjectConstants.h b/js/src/builtin/TypedObjectConstants.h new file mode 100644 index 000000000..41f30ab3e --- /dev/null +++ b/js/src/builtin/TypedObjectConstants.h @@ -0,0 +1,121 @@ +/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*- + * vim: set ts=8 sts=4 et sw=4 tw=99: + * 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/. */ + +// Specialized .h file to be used by both JS and C++ code. + +#ifndef builtin_TypedObjectConstants_h +#define builtin_TypedObjectConstants_h + +/////////////////////////////////////////////////////////////////////////// +// Values to be returned by SetFromTypedArrayApproach + +#define JS_SETTYPEDARRAY_SAME_TYPE 0 +#define JS_SETTYPEDARRAY_OVERLAPPING 1 +#define JS_SETTYPEDARRAY_DISJOINT 2 + +/////////////////////////////////////////////////////////////////////////// +// Slots for objects using the typed array layout + +#define JS_TYPEDARRAYLAYOUT_BUFFER_SLOT 0 +#define JS_TYPEDARRAYLAYOUT_LENGTH_SLOT 1 +#define JS_TYPEDARRAYLAYOUT_BYTEOFFSET_SLOT 2 + +/////////////////////////////////////////////////////////////////////////// +// Slots and flags for ArrayBuffer objects + +#define JS_ARRAYBUFFER_FLAGS_SLOT 3 + +#define JS_ARRAYBUFFER_DETACHED_FLAG 0x4 + +/////////////////////////////////////////////////////////////////////////// +// Slots for typed prototypes + +#define JS_TYPROTO_SLOTS 0 + +/////////////////////////////////////////////////////////////////////////// +// Slots for type objects +// +// Some slots apply to all type objects and some are specific to +// particular kinds of type objects. For simplicity we use the same +// number of slots no matter what kind of type descriptor we are +// working with, even though this is mildly wasteful. + +// Slots on all type objects +#define JS_DESCR_SLOT_KIND 0 // Atomized string representation +#define JS_DESCR_SLOT_STRING_REPR 1 // Atomized string representation +#define JS_DESCR_SLOT_ALIGNMENT 2 // Alignment in bytes +#define JS_DESCR_SLOT_SIZE 3 // Size in bytes, else 0 +#define JS_DESCR_SLOT_OPAQUE 4 // Atomized string representation +#define JS_DESCR_SLOT_TYPROTO 5 // Prototype for instances, if any +#define JS_DESCR_SLOT_ARRAYPROTO 6 // Lazily created prototype for arrays +#define JS_DESCR_SLOT_TRACE_LIST 7 // List of references for use in tracing + +// Slots on scalars, references, and SIMD objects +#define JS_DESCR_SLOT_TYPE 8 // Type code + +// Slots on array descriptors +#define JS_DESCR_SLOT_ARRAY_ELEM_TYPE 8 +#define JS_DESCR_SLOT_ARRAY_LENGTH 9 + +// Slots on struct type objects +#define JS_DESCR_SLOT_STRUCT_FIELD_NAMES 8 +#define JS_DESCR_SLOT_STRUCT_FIELD_TYPES 9 +#define JS_DESCR_SLOT_STRUCT_FIELD_OFFSETS 10 + +// Maximum number of slots for any descriptor +#define JS_DESCR_SLOTS 11 + +// These constants are for use exclusively in JS code. In C++ code, +// prefer TypeRepresentation::Scalar etc, which allows you to +// write a switch which will receive a warning if you omit a case. +#define JS_TYPEREPR_SCALAR_KIND 1 +#define JS_TYPEREPR_REFERENCE_KIND 2 +#define JS_TYPEREPR_STRUCT_KIND 3 +#define JS_TYPEREPR_ARRAY_KIND 4 +#define JS_TYPEREPR_SIMD_KIND 5 + +// These constants are for use exclusively in JS code. In C++ code, +// prefer Scalar::Int8 etc, which allows you to write a switch which will +// receive a warning if you omit a case. +#define JS_SCALARTYPEREPR_INT8 0 +#define JS_SCALARTYPEREPR_UINT8 1 +#define JS_SCALARTYPEREPR_INT16 2 +#define JS_SCALARTYPEREPR_UINT16 3 +#define JS_SCALARTYPEREPR_INT32 4 +#define JS_SCALARTYPEREPR_UINT32 5 +#define JS_SCALARTYPEREPR_FLOAT32 6 +#define JS_SCALARTYPEREPR_FLOAT64 7 +#define JS_SCALARTYPEREPR_UINT8_CLAMPED 8 +#define JS_SCALARTYPEREPR_FLOAT32X4 11 +#define JS_SCALARTYPEREPR_INT8X16 12 +#define JS_SCALARTYPEREPR_INT16X8 13 +#define JS_SCALARTYPEREPR_INT32X4 14 + +// These constants are for use exclusively in JS code. In C++ code, +// prefer ReferenceTypeRepresentation::TYPE_ANY etc, which allows +// you to write a switch which will receive a warning if you omit a +// case. +#define JS_REFERENCETYPEREPR_ANY 0 +#define JS_REFERENCETYPEREPR_OBJECT 1 +#define JS_REFERENCETYPEREPR_STRING 2 + +// These constants are for use exclusively in JS code. In C++ code, prefer +// SimdType::Int32x4 etc, since that allows you to write a switch which will +// receive a warning if you omit a case. +#define JS_SIMDTYPEREPR_INT8X16 0 +#define JS_SIMDTYPEREPR_INT16X8 1 +#define JS_SIMDTYPEREPR_INT32X4 2 +#define JS_SIMDTYPEREPR_UINT8X16 3 +#define JS_SIMDTYPEREPR_UINT16X8 4 +#define JS_SIMDTYPEREPR_UINT32X4 5 +#define JS_SIMDTYPEREPR_FLOAT32X4 6 +#define JS_SIMDTYPEREPR_FLOAT64X2 7 +#define JS_SIMDTYPEREPR_BOOL8X16 8 +#define JS_SIMDTYPEREPR_BOOL16X8 9 +#define JS_SIMDTYPEREPR_BOOL32X4 10 +#define JS_SIMDTYPEREPR_BOOL64X2 11 + +#endif |