bug 1456569 - Implement BigInt64 and BigUint64Array. r=wingo,jwalden,sfink

Differential Revision: https://phabricator.services.mozilla.com/D12581

--HG--
extra : moz-landing-system : lando
This commit is contained in:
Robin Templeton 2019-04-01 22:22:28 +00:00
Родитель c6c6107545
Коммит d1fd3eb1c9
43 изменённых файлов: 727 добавлений и 913 удалений

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@ -28,6 +28,8 @@ var ecmaGlobals =
{name: "Atomics", disabled: true},
"Boolean",
{name: "BigInt", nightly: true},
{name: "BigInt64Array", nightly: true},
{name: "BigUint64Array", nightly: true},
{name: "ByteLengthQueuingStrategy", optional: true},
{name: "CountQueuingStrategy", optional: true},
"DataView",

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@ -45,6 +45,8 @@ var ecmaGlobals =
{name: "ArrayBuffer", insecureContext: true},
{name: "Atomics", insecureContext: true, disabled: true},
{name: "BigInt", insecureContext: true, nightly: true},
{name: "BigInt64Array", insecureContext: true, nightly: true},
{name: "BigUint64Array", insecureContext: true, nightly: true},
{name: "Boolean", insecureContext: true},
{name: "ByteLengthQueuingStrategy", insecureContext: true},
{name: "CountQueuingStrategy", insecureContext: true},

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@ -33,6 +33,8 @@ var ecmaGlobals =
{name: "ArrayBuffer", insecureContext: true},
{name: "Atomics", insecureContext: true, disabled: true},
{name: "BigInt", insecureContext: true, nightly: true},
{name: "BigInt64Array", insecureContext: true, nightly: true},
{name: "BigUint64Array", insecureContext: true, nightly: true},
{name: "Boolean", insecureContext: true},
{name: "ByteLengthQueuingStrategy", insecureContext: true},
{name: "CountQueuingStrategy", insecureContext: true},

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@ -90,6 +90,8 @@
REAL(Float32Array, InitViaClassSpec, TYPED_ARRAY_CLASP(Float32)) \
REAL(Float64Array, InitViaClassSpec, TYPED_ARRAY_CLASP(Float64)) \
REAL(Uint8ClampedArray, InitViaClassSpec, TYPED_ARRAY_CLASP(Uint8Clamped)) \
REAL(BigInt64Array, InitViaClassSpec, TYPED_ARRAY_CLASP(BigInt64)) \
REAL(BigUint64Array, InitViaClassSpec, TYPED_ARRAY_CLASP(BigUint64)) \
REAL(BigInt, InitViaClassSpec, OCLASP(BigInt)) \
REAL(Proxy, InitProxyClass, &js::ProxyClass) \
REAL(WeakMap, InitViaClassSpec, OCLASP(WeakMap)) \

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@ -450,10 +450,9 @@ bool js::GetElements(JSContext* cx, HandleObject aobj, uint32_t length,
}
if (aobj->is<TypedArrayObject>()) {
TypedArrayObject* typedArray = &aobj->as<TypedArrayObject>();
Handle<TypedArrayObject*> typedArray = aobj.as<TypedArrayObject>();
if (typedArray->length() == length) {
typedArray->getElements(vp);
return true;
return TypedArrayObject::getElements(cx, typedArray, vp);
}
}

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@ -1333,10 +1333,14 @@ static bool TryEnumerableOwnPropertiesNative(JSContext* cx, HandleObject obj,
kind == EnumerableOwnPropertiesKind::Names) {
value.setString(str);
} else if (kind == EnumerableOwnPropertiesKind::Values) {
value.set(tobj->getElement(i));
if (!tobj->getElement<CanGC>(cx, i, &value)) {
return false;
}
} else {
key.setString(str);
value.set(tobj->getElement(i));
if (!tobj->getElement<CanGC>(cx, i, &value)) {
return false;
}
if (!NewValuePair(cx, key, value, &value)) {
return false;
}
@ -1543,7 +1547,10 @@ static bool EnumerableOwnProperties(JSContext* cx, const JS::CallArgs& args) {
if (obj->is<NativeObject>()) {
HandleNativeObject nobj = obj.as<NativeObject>();
if (JSID_IS_INT(id) && nobj->containsDenseElement(JSID_TO_INT(id))) {
value = nobj->getDenseOrTypedArrayElement(JSID_TO_INT(id));
if (!nobj->getDenseOrTypedArrayElement<CanGC>(cx, JSID_TO_INT(id),
&value)) {
return false;
}
} else {
shape = nobj->lookup(cx, id);
if (!shape || !shape->enumerable()) {

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@ -152,5 +152,7 @@
#define TYPEDARRAY_KIND_FLOAT32 6
#define TYPEDARRAY_KIND_FLOAT64 7
#define TYPEDARRAY_KIND_UINT8CLAMPED 8
#define TYPEDARRAY_KIND_BIGINT64 9
#define TYPEDARRAY_KIND_BIGUINT64 10
#endif

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@ -351,7 +351,12 @@ function TypedArrayFill(value, start = 0, end = undefined) {
var len = TypedArrayLength(O);
// Step 4.
var kind = GetTypedArrayKind(O);
if (kind === TYPEDARRAY_KIND_BIGINT64 || kind === TYPEDARRAY_KIND_BIGUINT64) {
value = ToBigInt(value);
} else {
value = ToNumber(value);
}
// Step 5.
var relativeStart = ToInteger(start);
@ -1142,8 +1147,9 @@ function TypedArraySome(callbackfn/*, thisArg*/) {
// as opposed to the ordering in the spec.
function TypedArrayCompare(x, y) {
// Step 1.
assert(typeof x === "number" && typeof y === "number",
"x and y are not numbers.");
assert((typeof x === "number" && typeof y === "number") ||
(typeof x === "bigint" && typeof y === "bigint"),
"x and y are not numbers of the same type.");
// Step 2 (Implemented in TypedArraySort).
@ -1188,6 +1194,29 @@ function TypedArrayCompareInt(x, y) {
return 0;
}
// https://tc39.github.io/proposal-bigint/#sec-%typedarray%.prototype.sort
// TypedArray SortCompare specialization for BigInt values.
function TypedArrayCompareBigInt(x, y) {
// Step 1.
assert(typeof x === "bigint" && typeof y === "bigint",
"x and y are not BigInts.");
// Step 2 (Implemented in TypedArraySort).
// Step 6.
if (x < y)
return -1;
// Step 7.
if (x > y)
return 1;
// Steps 3-5, 8-9 (Not applicable when sorting BigInt values).
// Step 10.
return 0;
}
// ES2019 draft rev 8a16cb8d18660a1106faae693f0f39b9f1a30748
// 22.2.3.26 %TypedArray%.prototype.sort ( comparefn )
function TypedArraySort(comparefn) {
@ -1248,6 +1277,9 @@ function TypedArraySort(comparefn) {
return RadixSort(obj, len, buffer,
4 /* nbytes */, true /* signed */, false /* floating */,
TypedArrayCompareInt);
case TYPEDARRAY_KIND_BIGINT64:
case TYPEDARRAY_KIND_BIGUINT64:
return QuickSort(obj, len, TypedArrayCompareBigInt);
case TYPEDARRAY_KIND_FLOAT32:
return RadixSort(obj, len, buffer,
4 /* nbytes */, true /* signed */, true /* floating */,

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@ -248,6 +248,12 @@ class ScalarTypeDescr : public SimpleTypeDescr {
static_assert(
Scalar::Uint32 == JS_SCALARTYPEREPR_UINT32,
"TypedObjectConstants.h must be consistent with Scalar::Type");
static_assert(
Scalar::BigInt64 == JS_SCALARTYPEREPR_BIGINT64,
"TypedObjectConstants.h must be consistent with Scalar::Type");
static_assert(
Scalar::BigUint64 == JS_SCALARTYPEREPR_BIGUINT64,
"TypedObjectConstants.h must be consistent with Scalar::Type");
static_assert(
Scalar::Float32 == JS_SCALARTYPEREPR_FLOAT32,
"TypedObjectConstants.h must be consistent with Scalar::Type");
@ -275,7 +281,9 @@ class ScalarTypeDescr : public SimpleTypeDescr {
MACRO_(Scalar::Int32, int32_t, int32) \
MACRO_(Scalar::Uint32, uint32_t, uint32) \
MACRO_(Scalar::Float32, float, float32) \
MACRO_(Scalar::Float64, double, float64)
MACRO_(Scalar::Float64, double, float64) \
MACRO_(Scalar::BigInt64, int64_t, bigint64) \
MACRO_(Scalar::BigUint64, uint64_t, biguint64)
// Must be in same order as the enum ScalarTypeDescr::Type:
#define JS_FOR_EACH_SCALAR_TYPE_REPR(MACRO_) \

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@ -92,6 +92,8 @@
#define JS_SCALARTYPEREPR_FLOAT32 6
#define JS_SCALARTYPEREPR_FLOAT64 7
#define JS_SCALARTYPEREPR_UINT8_CLAMPED 8
#define JS_SCALARTYPEREPR_BIGINT64 9
#define JS_SCALARTYPEREPR_BIGUINT64 10
// These constants are for use exclusively in JS code. In C++ code,
// prefer ReferenceTypeRepresentation::TYPE_ANY etc, which allows

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@ -2405,6 +2405,9 @@ void StoreToTypedArray(JSContext* cx, MacroAssembler& masm, Scalar::Type type,
masm.unboxDouble(value, FloatReg0);
masm.clampDoubleToUint8(FloatReg0, scratch);
masm.jump(&clamped);
} else if (type == Scalar::BigInt64 || type == Scalar::BigUint64) {
// FIXME: https://bugzil.la/1536703
masm.jump(failure);
} else {
Label notInt32;
masm.branchTestInt32(Assembler::NotEqual, value, &notInt32);

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@ -7586,11 +7586,11 @@ void CodeGenerator::visitTypedArrayElementShift(LTypedArrayElementShift* lir) {
Register out = ToRegister(lir->output());
static_assert(Scalar::Int8 == 0, "Int8 is the first typed array class");
static_assert((Scalar::Uint8Clamped - Scalar::Int8) ==
Scalar::MaxTypedArrayViewType - 1,
"Uint8Clamped is the last typed array class");
static_assert(
(Scalar::BigUint64 - Scalar::Int8) == Scalar::MaxTypedArrayViewType - 1,
"BigUint64 is the last typed array class");
Label zero, one, two, done;
Label zero, one, two, three, done;
masm.loadObjClassUnsafe(obj, out);
@ -7611,13 +7611,22 @@ void CodeGenerator::visitTypedArrayElementShift(LTypedArrayElementShift* lir) {
static_assert(ValidateShiftRange(Scalar::Float64, Scalar::Uint8Clamped),
"shift amount is three in [Float64, Uint8Clamped)");
static_assert(
ValidateShiftRange(Scalar::Uint8Clamped, Scalar::MaxTypedArrayViewType),
"shift amount is zero in [Uint8Clamped, MaxTypedArrayViewType)");
masm.branchPtr(Assembler::AboveOrEqual, out,
masm.branchPtr(Assembler::Below, out,
ImmPtr(TypedArrayObject::classForType(Scalar::Uint8Clamped)),
&three);
static_assert(ValidateShiftRange(Scalar::Uint8Clamped, Scalar::BigInt64),
"shift amount is zero in [Uint8Clamped, BigInt64)");
masm.branchPtr(Assembler::Below, out,
ImmPtr(TypedArrayObject::classForType(Scalar::BigInt64)),
&zero);
static_assert(
ValidateShiftRange(Scalar::BigInt64, Scalar::MaxTypedArrayViewType),
"shift amount is three in [BigInt64, MaxTypedArrayViewType)");
// Fall through for BigInt64 and BigUint64
masm.bind(&three);
masm.move32(Imm32(3), out);
masm.jump(&done);
@ -12981,13 +12990,14 @@ void CodeGenerator::visitIsTypedArray(LIsTypedArray* lir) {
Label done;
static_assert(Scalar::Int8 == 0, "Int8 is the first typed array class");
static_assert((Scalar::Uint8Clamped - Scalar::Int8) ==
Scalar::MaxTypedArrayViewType - 1,
"Uint8Clamped is the last typed array class");
const Class* firstTypedArrayClass =
TypedArrayObject::classForType(Scalar::Int8);
static_assert(
(Scalar::BigUint64 - Scalar::Int8) == Scalar::MaxTypedArrayViewType - 1,
"BigUint64 is the last typed array class");
const Class* lastTypedArrayClass =
TypedArrayObject::classForType(Scalar::Uint8Clamped);
TypedArrayObject::classForType(Scalar::BigUint64);
masm.loadObjClassUnsafe(object, output);
masm.branchPtr(Assembler::Below, output, ImmPtr(firstTypedArrayClass),

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@ -693,25 +693,9 @@ static inline MIRType ScalarTypeToMIRType(Scalar::Type type) {
return MIRType::Float32;
case Scalar::Float64:
return MIRType::Double;
case Scalar::MaxTypedArrayViewType:
break;
}
MOZ_CRASH("unexpected kind");
}
static inline unsigned ScalarTypeToLength(Scalar::Type type) {
switch (type) {
case Scalar::Int8:
case Scalar::Uint8:
case Scalar::Int16:
case Scalar::Uint16:
case Scalar::Int32:
case Scalar::Uint32:
case Scalar::Int64:
case Scalar::Float32:
case Scalar::Float64:
case Scalar::Uint8Clamped:
return 1;
case Scalar::BigInt64:
case Scalar::BigUint64:
MOZ_CRASH("NYI");
case Scalar::MaxTypedArrayViewType:
break;
}

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@ -5655,7 +5655,14 @@ bool jit::ElementAccessIsTypedArray(CompilerConstraintList* constraints,
}
*arrayType = types->getTypedArrayType(constraints);
return *arrayType != Scalar::MaxTypedArrayViewType;
// FIXME: https://bugzil.la/1536699
if (*arrayType == Scalar::MaxTypedArrayViewType ||
Scalar::isBigIntType(*arrayType)) {
return false;
}
return true;
}
bool jit::ElementAccessIsPacked(CompilerConstraintList* constraints,

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@ -12216,6 +12216,9 @@ inline MIRType MIRTypeForTypedArrayRead(Scalar::Type arrayType,
return MIRType::Float32;
case Scalar::Float64:
return MIRType::Double;
case Scalar::BigInt64:
case Scalar::BigUint64:
return MIRType::BigInt;
default:
break;
}

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@ -704,7 +704,7 @@ void MacroAssembler::canonicalizeFloat(FloatRegister reg) {
void MacroAssembler::canonicalizeFloatIfDeterministic(FloatRegister reg) {
#ifdef JS_MORE_DETERMINISTIC
// See the comment in TypedArrayObjectTemplate::getIndexValue.
// See the comment in TypedArrayObjectTemplate::getElement.
canonicalizeFloat(reg);
#endif // JS_MORE_DETERMINISTIC
}
@ -718,7 +718,7 @@ void MacroAssembler::canonicalizeDouble(FloatRegister reg) {
void MacroAssembler::canonicalizeDoubleIfDeterministic(FloatRegister reg) {
#ifdef JS_MORE_DETERMINISTIC
// See the comment in TypedArrayObjectTemplate::getIndexValue.
// See the comment in TypedArrayObjectTemplate::getElement.
canonicalizeDouble(reg);
#endif // JS_MORE_DETERMINISTIC
}

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@ -400,6 +400,11 @@ void MacroAssembler::loadFromTypedArray(Scalar::Type arrayType, const T& src,
branchTest32(Assembler::Signed, dest.gpr(), dest.gpr(), fail);
}
break;
case Scalar::BigInt64:
case Scalar::BigUint64:
// FIXME: https://bugzil.la/1536702
jump(fail);
break;
case Scalar::Float32:
loadFloat32(src, dest.fpu());
canonicalizeFloat(dest.fpu());
@ -483,6 +488,12 @@ void MacroAssembler::loadFromTypedArray(Scalar::Type arrayType, const T& src,
boxDouble(fpscratch, dest, fpscratch);
break;
}
// FIXME: https://bugzil.la/1536702
case Scalar::BigInt64:
case Scalar::BigUint64: {
jump(fail);
break;
}
default:
MOZ_CRASH("Invalid typed array type");
}

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@ -1733,6 +1733,8 @@ static Range* GetTypedArrayRange(TempAllocator& alloc, Scalar::Type type) {
case Scalar::Int32:
return Range::NewInt32Range(alloc, INT32_MIN, INT32_MAX);
case Scalar::BigInt64:
case Scalar::BigUint64:
case Scalar::Int64:
case Scalar::Float32:
case Scalar::Float64:

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@ -349,6 +349,8 @@ void MacroAssemblerCompat::wasmLoadImpl(const wasm::MemoryAccessDesc& access,
Ldr(SelectFPReg(outany, out64, 64), srcAddr);
break;
case Scalar::Uint8Clamped:
case Scalar::BigInt64:
case Scalar::BigUint64:
case Scalar::MaxTypedArrayViewType:
MOZ_CRASH("unexpected array type");
}
@ -405,6 +407,8 @@ void MacroAssemblerCompat::wasmStoreImpl(const wasm::MemoryAccessDesc& access,
Str(SelectFPReg(valany, val64, 64), dstAddr);
break;
case Scalar::Uint8Clamped:
case Scalar::BigInt64:
case Scalar::BigUint64:
case Scalar::MaxTypedArrayViewType:
MOZ_CRASH("unexpected array type");
}

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@ -383,6 +383,8 @@ void CodeGeneratorX64::wasmStore(const wasm::MemoryAccessDesc& access,
case Scalar::Float32:
case Scalar::Float64:
case Scalar::Uint8Clamped:
case Scalar::BigInt64:
case Scalar::BigUint64:
case Scalar::MaxTypedArrayViewType:
MOZ_CRASH("unexpected array type");
}

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@ -206,6 +206,8 @@ void LIRGenerator::visitWasmStore(MWasmStore* ins) {
case Scalar::Float64:
valueAlloc = useRegisterAtStart(value);
break;
case Scalar::BigInt64:
case Scalar::BigUint64:
case Scalar::Uint8Clamped:
case Scalar::MaxTypedArrayViewType:
MOZ_CRASH("unexpected array type");

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@ -612,6 +612,8 @@ void MacroAssembler::wasmLoad(const wasm::MemoryAccessDesc& access,
break;
case Scalar::Int64:
MOZ_CRASH("int64 loads must use load64");
case Scalar::BigInt64:
case Scalar::BigUint64:
case Scalar::Uint8Clamped:
case Scalar::MaxTypedArrayViewType:
MOZ_CRASH("unexpected array type");
@ -652,6 +654,8 @@ void MacroAssembler::wasmLoadI64(const wasm::MemoryAccessDesc& access,
case Scalar::Float64:
MOZ_CRASH("non-int64 loads should use load()");
case Scalar::Uint8Clamped:
case Scalar::BigInt64:
case Scalar::BigUint64:
case Scalar::MaxTypedArrayViewType:
MOZ_CRASH("unexpected array type");
}
@ -687,6 +691,8 @@ void MacroAssembler::wasmStore(const wasm::MemoryAccessDesc& access,
storeUncanonicalizedDouble(value.fpu(), dstAddr);
break;
case Scalar::Uint8Clamped:
case Scalar::BigInt64:
case Scalar::BigUint64:
case Scalar::MaxTypedArrayViewType:
MOZ_CRASH("unexpected array type");
}

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@ -413,6 +413,8 @@ void CodeGeneratorX86Shared::visitOutOfLineLoadTypedArrayOutOfBounds(
OutOfLineLoadTypedArrayOutOfBounds* ool) {
switch (ool->viewType()) {
case Scalar::Int64:
case Scalar::BigInt64:
case Scalar::BigUint64:
case Scalar::MaxTypedArrayViewType:
MOZ_CRASH("unexpected array type");
case Scalar::Float32:

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@ -358,6 +358,8 @@ void LIRGenerator::visitAsmJSStoreHeap(MAsmJSStoreHeap* ins) {
case Scalar::Int64:
MOZ_CRASH("NYI");
case Scalar::Uint8Clamped:
case Scalar::BigInt64:
case Scalar::BigUint64:
case Scalar::MaxTypedArrayViewType:
MOZ_CRASH("unexpected array type");
}

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@ -378,6 +378,8 @@ void LIRGenerator::visitWasmStore(MWasmStore* ins) {
return;
}
case Scalar::Uint8Clamped:
case Scalar::BigInt64:
case Scalar::BigUint64:
case Scalar::MaxTypedArrayViewType:
MOZ_CRASH("unexpected array type");
}

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@ -629,6 +629,8 @@ void MacroAssembler::wasmLoad(const wasm::MemoryAccessDesc& access,
break;
case Scalar::Int64:
case Scalar::Uint8Clamped:
case Scalar::BigInt64:
case Scalar::BigUint64:
case Scalar::MaxTypedArrayViewType:
MOZ_CRASH("unexpected type");
}
@ -700,6 +702,8 @@ void MacroAssembler::wasmLoadI64(const wasm::MemoryAccessDesc& access,
case Scalar::Float64:
MOZ_CRASH("non-int64 loads should use load()");
case Scalar::Uint8Clamped:
case Scalar::BigInt64:
case Scalar::BigUint64:
case Scalar::MaxTypedArrayViewType:
MOZ_CRASH("unexpected array type");
}
@ -738,6 +742,8 @@ void MacroAssembler::wasmStore(const wasm::MemoryAccessDesc& access,
case Scalar::Int64:
MOZ_CRASH("Should be handled in storeI64.");
case Scalar::MaxTypedArrayViewType:
case Scalar::BigInt64:
case Scalar::BigUint64:
MOZ_CRASH("unexpected type");
}

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@ -1414,12 +1414,15 @@ extern JS_FRIEND_API uint64_t GetSCOffset(JSStructuredCloneWriter* writer);
namespace Scalar {
/**
* Scalar types that can appear in typed arrays and typed objects. The enum
* values must to be kept in sync with the JS_SCALARTYPEREPR_ constants, as
* well as the TypedArrayObject::classes and TypedArrayObject::protoClasses
* definitions.
*/
// Scalar types that can appear in typed arrays and typed objects.
// The enum values must be kept in sync with:
// * the JS_SCALARTYPEREPR constants
// * the TYPEDARRAY_KIND constants
// * the SCTAG_TYPED_ARRAY constants
// * JS_FOR_EACH_TYPEDARRAY
// * JS_FOR_PROTOTYPES_
// * JS_FOR_EACH_UNIQUE_SCALAR_TYPE_REPR_CTYPE
// * JIT compilation
enum Type {
Int8 = 0,
Uint8,
@ -1436,6 +1439,9 @@ enum Type {
*/
Uint8Clamped,
BigInt64,
BigUint64,
/**
* Types that don't have their own TypedArray equivalent, for now.
*/
@ -1459,10 +1465,13 @@ static inline size_t byteSize(Type atype) {
return 4;
case Int64:
case Float64:
case BigInt64:
case BigUint64:
return 8;
default:
MOZ_CRASH("invalid scalar type");
case MaxTypedArrayViewType:
break;
}
MOZ_CRASH("invalid scalar type");
}
static inline bool isSignedIntType(Type atype) {
@ -1471,6 +1480,7 @@ static inline bool isSignedIntType(Type atype) {
case Int16:
case Int32:
case Int64:
case BigInt64:
return true;
case Uint8:
case Uint8Clamped:
@ -1478,10 +1488,34 @@ static inline bool isSignedIntType(Type atype) {
case Uint32:
case Float32:
case Float64:
case BigUint64:
return false;
default:
case MaxTypedArrayViewType:
break;
}
MOZ_CRASH("invalid scalar type");
}
static inline bool isBigIntType(Type atype) {
switch (atype) {
case BigInt64:
case BigUint64:
return true;
case Int8:
case Int16:
case Int32:
case Int64:
case Uint8:
case Uint8Clamped:
case Uint16:
case Uint32:
case Float32:
case Float64:
return false;
case MaxTypedArrayViewType:
break;
}
MOZ_CRASH("invalid scalar type");
}
} /* namespace Scalar */
@ -1568,6 +1602,12 @@ extern JS_FRIEND_API JSObject* JS_NewInt32ArrayWithBuffer(
extern JS_FRIEND_API JSObject* JS_NewUint32ArrayWithBuffer(
JSContext* cx, JS::HandleObject arrayBuffer, uint32_t byteOffset,
int32_t length);
extern JS_FRIEND_API JSObject* JS_NewBigInt64ArrayWithBuffer(
JSContext* cx, JS::HandleObject arrayBuffer, uint32_t byteOffset,
int32_t length);
extern JS_FRIEND_API JSObject* JS_NewBigUint64ArrayWithBuffer(
JSContext* cx, JS::HandleObject arrayBuffer, uint32_t byteOffset,
int32_t length);
extern JS_FRIEND_API JSObject* JS_NewFloat32ArrayWithBuffer(
JSContext* cx, JS::HandleObject arrayBuffer, uint32_t byteOffset,
int32_t length);
@ -1630,6 +1670,8 @@ extern JS_FRIEND_API JSObject* UnwrapInt16Array(JSObject* obj);
extern JS_FRIEND_API JSObject* UnwrapUint16Array(JSObject* obj);
extern JS_FRIEND_API JSObject* UnwrapInt32Array(JSObject* obj);
extern JS_FRIEND_API JSObject* UnwrapUint32Array(JSObject* obj);
extern JS_FRIEND_API JSObject* UnwrapBigInt64Array(JSObject* obj);
extern JS_FRIEND_API JSObject* UnwrapBigUint64Array(JSObject* obj);
extern JS_FRIEND_API JSObject* UnwrapFloat32Array(JSObject* obj);
extern JS_FRIEND_API JSObject* UnwrapFloat64Array(JSObject* obj);
@ -1646,6 +1688,8 @@ extern JS_FRIEND_DATA const Class* const Int16ArrayClassPtr;
extern JS_FRIEND_DATA const Class* const Uint16ArrayClassPtr;
extern JS_FRIEND_DATA const Class* const Int32ArrayClassPtr;
extern JS_FRIEND_DATA const Class* const Uint32ArrayClassPtr;
extern JS_FRIEND_DATA const Class* const BigInt64ArrayClassPtr;
extern JS_FRIEND_DATA const Class* const BigUint64ArrayClassPtr;
extern JS_FRIEND_DATA const Class* const Float32ArrayClassPtr;
extern JS_FRIEND_DATA const Class* const Float64ArrayClassPtr;

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@ -243,388 +243,7 @@ skip script test262/built-ins/TypedArrayConstructors/internals/Set/key-is-not-ca
skip script test262/built-ins/TypedArrayConstructors/internals/Set/key-is-not-integer.js
skip script test262/built-ins/TypedArrayConstructors/internals/Set/tonumber-value-throws.js
# https://bugzilla.mozilla.org/show_bug.cgi?id=1456569
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skip script test262/built-ins/TypedArray/prototype/sort/BigInt/detached-buffer-comparefn.js
skip script test262/built-ins/TypedArray/prototype/sort/BigInt/comparefn-calls.js
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skip script test262/built-ins/TypedArray/prototype/sort/BigInt/comparefn-nonfunction-call-throws.js
skip script test262/built-ins/TypedArray/prototype/sort/BigInt/sorted-values.js
skip script test262/built-ins/TypedArray/prototype/sort/BigInt/sortcompare-with-no-tostring.js
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# https://bugzilla.mozilla.org/show_bug.cgi?id=1531647
skip script test262/built-ins/Atomics/store/bigint/bad-range.js
skip script test262/built-ins/Atomics/store/bigint/nonshared-int-views.js
skip script test262/built-ins/Atomics/store/bigint/good-views.js
@ -682,291 +301,6 @@ skip script test262/built-ins/Atomics/exchange/bigint/good-views.js
skip script test262/built-ins/Atomics/sub/bigint/bad-range.js
skip script test262/built-ins/Atomics/sub/bigint/nonshared-int-views.js
skip script test262/built-ins/Atomics/sub/bigint/good-views.js
skip script test262/built-ins/TypedArrayConstructors/from/BigInt/iter-access-error.js
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skip script test262/built-ins/TypedArrayConstructors/ctors-bigint/no-args/use-custom-proto-if-object.js
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# https://bugzilla.mozilla.org/show_bug.cgi?id=1317405
skip script test262/language/computed-property-names/class/static/method-number.js

Просмотреть файл

@ -507,9 +507,11 @@ struct uint8_clamped {
explicit uint8_clamped(uint8_t x) { *this = x; }
explicit uint8_clamped(uint16_t x) { *this = x; }
explicit uint8_clamped(uint32_t x) { *this = x; }
explicit uint8_clamped(uint64_t x) { *this = x; }
explicit uint8_clamped(int8_t x) { *this = x; }
explicit uint8_clamped(int16_t x) { *this = x; }
explicit uint8_clamped(int32_t x) { *this = x; }
explicit uint8_clamped(int64_t x) { *this = x; }
explicit uint8_clamped(double x) { *this = x; }
uint8_clamped& operator=(const uint8_clamped& x) = default;
@ -529,6 +531,11 @@ struct uint8_clamped {
return *this;
}
uint8_clamped& operator=(uint64_t x) {
val = (x > 255) ? 255 : uint8_t(x);
return *this;
}
uint8_clamped& operator=(int8_t x) {
val = (x >= 0) ? uint8_t(x) : 0;
return *this;
@ -544,6 +551,11 @@ struct uint8_clamped {
return *this;
}
uint8_clamped& operator=(int64_t x) {
val = (x >= 0) ? ((x < 255) ? uint8_t(x) : 255) : 0;
return *this;
}
uint8_clamped& operator=(const double x) {
val = uint8_t(ClampDoubleToUint8(x));
return *this;

Просмотреть файл

@ -2688,6 +2688,22 @@ BigInt* js::ToBigInt(JSContext* cx, HandleValue val) {
return nullptr;
}
JS::Result<int64_t> js::ToBigInt64(JSContext* cx, HandleValue v) {
BigInt* bi = ToBigInt(cx, v);
if (!bi) {
return cx->alreadyReportedError();
}
return BigInt::toInt64(bi);
}
JS::Result<uint64_t> js::ToBigUint64(JSContext* cx, HandleValue v) {
BigInt* bi = ToBigInt(cx, v);
if (!bi) {
return cx->alreadyReportedError();
}
return BigInt::toUint64(bi);
}
double BigInt::numberValue(BigInt* x) {
if (x->isZero()) {
return 0.0;

Просмотреть файл

@ -388,6 +388,8 @@ extern JS::BigInt* ParseBigIntLiteral(
JSContext* cx, const mozilla::Range<const char16_t>& chars);
extern JS::BigInt* ToBigInt(JSContext* cx, JS::Handle<JS::Value> v);
extern JS::Result<int64_t> ToBigInt64(JSContext* cx, JS::Handle<JS::Value> v);
extern JS::Result<uint64_t> ToBigUint64(JSContext* cx, JS::Handle<JS::Value> v);
} // namespace js

Просмотреть файл

@ -44,6 +44,8 @@
MACRO(async, async, "async") \
MACRO(autoAllocateChunkSize, autoAllocateChunkSize, "autoAllocateChunkSize") \
MACRO(await, await, "await") \
MACRO(bigint64, bigint64, "bigint64") \
MACRO(biguint64, biguint64, "biguint64") \
MACRO(Bool8x16, Bool8x16, "Bool8x16") \
MACRO(Bool16x8, Bool16x8, "Bool16x8") \
MACRO(Bool32x4, Bool32x4, "Bool32x4") \

Просмотреть файл

@ -2560,15 +2560,15 @@ bool js::LookupOwnPropertyPure(JSContext* cx, JSObject* obj, jsid id,
}
static inline bool NativeGetPureInline(NativeObject* pobj, jsid id,
PropertyResult prop, Value* vp) {
PropertyResult prop, Value* vp,
JSContext* cx) {
if (prop.isDenseOrTypedArrayElement()) {
// For simplicity we ignore the TypedArray with string index case.
if (!JSID_IS_INT(id)) {
return false;
}
*vp = pobj->getDenseOrTypedArrayElement(JSID_TO_INT(id));
return true;
return pobj->getDenseOrTypedArrayElement<NoGC>(cx, JSID_TO_INT(id), vp);
}
// Fail if we have a custom getter.
@ -2594,7 +2594,7 @@ bool js::GetPropertyPure(JSContext* cx, JSObject* obj, jsid id, Value* vp) {
return true;
}
return NativeGetPureInline(&pobj->as<NativeObject>(), id, prop, vp);
return NativeGetPureInline(&pobj->as<NativeObject>(), id, prop, vp, cx);
}
bool js::GetOwnPropertyPure(JSContext* cx, JSObject* obj, jsid id, Value* vp,
@ -2611,7 +2611,7 @@ bool js::GetOwnPropertyPure(JSContext* cx, JSObject* obj, jsid id, Value* vp,
}
*found = true;
return NativeGetPureInline(&obj->as<NativeObject>(), id, prop, vp);
return NativeGetPureInline(&obj->as<NativeObject>(), id, prop, vp, cx);
}
static inline bool NativeGetGetterPureInline(PropertyResult prop,

Просмотреть файл

@ -443,11 +443,15 @@ inline DenseElementResult NativeObject::setOrExtendDenseElements(
return DenseElementResult::Success;
}
inline Value NativeObject::getDenseOrTypedArrayElement(uint32_t idx) {
template <AllowGC allowGC>
inline bool NativeObject::getDenseOrTypedArrayElement(
JSContext* cx, uint32_t idx,
typename MaybeRooted<Value, allowGC>::MutableHandleType val) {
if (is<TypedArrayObject>()) {
return as<TypedArrayObject>().getElement(idx);
return as<TypedArrayObject>().getElement<allowGC>(cx, idx, val);
}
return getDenseElement(idx);
val.set(getDenseElement(idx));
return true;
}
MOZ_ALWAYS_INLINE void NativeObject::setSlotWithType(JSContext* cx,

Просмотреть файл

@ -1525,8 +1525,7 @@ static bool GetExistingPropertyValue(JSContext* cx, HandleNativeObject obj,
HandleId id, Handle<PropertyResult> prop,
MutableHandleValue vp) {
if (prop.isDenseOrTypedArrayElement()) {
vp.set(obj->getDenseOrTypedArrayElement(JSID_TO_INT(id)));
return true;
return obj->getDenseOrTypedArrayElement<CanGC>(cx, JSID_TO_INT(id), vp);
}
MOZ_ASSERT(!cx->helperThread());
@ -1979,10 +1978,9 @@ static bool DefineNonexistentProperty(JSContext* cx, HandleNativeObject obj,
// Steps 1-2 are enforced by the caller.
// Step 3.
// We still need to call ToNumber, because of its possible side
// effects.
double d;
if (!ToNumber(cx, v, &d)) {
// We still need to call ToNumber or ToBigInt, because of its
// possible side effects.
if (!obj->as<TypedArrayObject>().convertForSideEffect(cx, v)) {
return false;
}
@ -2189,7 +2187,10 @@ bool js::NativeGetOwnPropertyDescriptor(
desc.setSetter(nullptr);
if (prop.isDenseOrTypedArrayElement()) {
desc.value().set(obj->getDenseOrTypedArrayElement(JSID_TO_INT(id)));
if (!obj->getDenseOrTypedArrayElement<CanGC>(cx, JSID_TO_INT(id),
desc.value())) {
return false;
}
} else {
RootedShape shape(cx, prop.shape());
if (!NativeGetExistingProperty(cx, obj, obj, shape, desc.value())) {
@ -2508,8 +2509,8 @@ static MOZ_ALWAYS_INLINE bool NativeGetPropertyInline(
// Steps 5-8. Special case for dense elements because
// GetExistingProperty doesn't support those.
if (prop.isDenseOrTypedArrayElement()) {
vp.set(pobj->getDenseOrTypedArrayElement(JSID_TO_INT(id)));
return true;
return pobj->template getDenseOrTypedArrayElement<allowGC>(
cx, JSID_TO_INT(id), vp);
}
typename MaybeRooted<Shape*, allowGC>::RootType shape(cx, prop.shape());
@ -2794,42 +2795,6 @@ static bool SetNonexistentProperty(JSContext* cx, HandleNativeObject obj,
return SetPropertyByDefining(cx, id, v, receiver, result);
}
// ES2019 draft rev e7dc63fb5d1c26beada9ffc12dc78aa6548f1fb5
// 9.4.5.9 IntegerIndexedElementSet
static bool SetTypedArrayElement(JSContext* cx, Handle<TypedArrayObject*> obj,
uint64_t index, HandleValue v,
ObjectOpResult& result) {
// Steps 1-2. Are enforced by the caller.
// Step 3.
double d;
if (!ToNumber(cx, v, &d)) {
return false;
}
// Step 5.
if (obj->hasDetachedBuffer()) {
return result.failSoft(JSMSG_TYPED_ARRAY_DETACHED);
}
// Step 6. Right now we only allow integer indexes.
// Step 7.
// Step 8.
uint32_t length = obj->length();
// Step 9.
if (index >= length) {
return result.failSoft(JSMSG_BAD_INDEX);
}
// Steps 4, 10-15.
TypedArrayObject::setElement(*obj, index, d);
// Step 16.
return result.succeed();
}
// Set an existing own property obj[index] that's a dense element.
static bool SetDenseElement(JSContext* cx, HandleNativeObject obj,
uint32_t index, HandleValue v,

Просмотреть файл

@ -1299,7 +1299,10 @@ class NativeObject : public JSObject {
inline void setDenseElementHole(JSContext* cx, uint32_t index);
inline void removeDenseElementForSparseIndex(JSContext* cx, uint32_t index);
inline Value getDenseOrTypedArrayElement(uint32_t idx);
template <AllowGC allowGC>
inline bool getDenseOrTypedArrayElement(
JSContext* cx, uint32_t idx,
typename MaybeRooted<Value, allowGC>::MutableHandleType val);
inline void copyDenseElements(uint32_t dstStart, const Value* src,
uint32_t count);

Просмотреть файл

@ -727,6 +727,8 @@ inline const Class* GetClassForProtoKey(JSProtoKey key) {
case JSProto_Float32Array:
case JSProto_Float64Array:
case JSProto_Uint8ClampedArray:
case JSProto_BigInt64Array:
case JSProto_BigUint64Array:
return &TypedArrayObject::classes[key - JSProto_Int8Array];
default:

Просмотреть файл

@ -16,6 +16,7 @@
#include "selfhosted.out.h"
#include "builtin/Array.h"
#include "builtin/BigInt.h"
#include "builtin/intl/Collator.h"
#include "builtin/intl/DateTimeFormat.h"
#include "builtin/intl/IntlObject.h"
@ -45,6 +46,7 @@
#include "vm/ArgumentsObject.h"
#include "vm/AsyncFunction.h"
#include "vm/AsyncIteration.h"
#include "vm/BigIntType.h"
#include "vm/Compression.h"
#include "vm/GeneratorObject.h"
#include "vm/Interpreter.h"
@ -1081,6 +1083,10 @@ static bool intrinsic_GetTypedArrayKind(JSContext* cx, unsigned argc,
"TYPEDARRAY_KIND_FLOAT64 doesn't match the scalar type");
static_assert(TYPEDARRAY_KIND_UINT8CLAMPED == Scalar::Type::Uint8Clamped,
"TYPEDARRAY_KIND_UINT8CLAMPED doesn't match the scalar type");
static_assert(TYPEDARRAY_KIND_BIGINT64 == Scalar::Type::BigInt64,
"TYPEDARRAY_KIND_BIGINT64 doesn't match the scalar type");
static_assert(TYPEDARRAY_KIND_BIGUINT64 == Scalar::Type::BigUint64,
"TYPEDARRAY_KIND_BIGUINT64 doesn't match the scalar type");
JSObject* obj = &args[0].toObject();
Scalar::Type type = JS_GetArrayBufferViewType(obj);
@ -1451,6 +1457,14 @@ struct DisjointElements {
CopyValues(dest, src.cast<uint8_clamped*>(), count);
return;
case Scalar::BigInt64:
CopyValues(dest, src.cast<int64_t*>(), count);
return;
case Scalar::BigUint64:
CopyValues(dest, src.cast<uint64_t*>(), count);
return;
default:
MOZ_CRASH("NonoverlappingSet with bogus from-type");
}
@ -1643,6 +1657,10 @@ static bool IsTypedArrayBitwiseSlice(Scalar::Type sourceType,
case Scalar::Float64:
return targetType == Scalar::Float64;
case Scalar::BigInt64:
case Scalar::BigUint64:
return targetType == Scalar::BigInt64 || targetType == Scalar::BigUint64;
default:
MOZ_CRASH("IsTypedArrayBitwiseSlice with a bogus typed array type");
}
@ -2345,6 +2363,17 @@ static bool intrinsic_CopyDataPropertiesOrGetOwnKeys(JSContext* cx,
cx, from, JSITER_OWNONLY | JSITER_HIDDEN | JSITER_SYMBOLS, args.rval());
}
static bool intrinsic_ToBigInt(JSContext* cx, unsigned argc, Value* vp) {
CallArgs args = CallArgsFromVp(argc, vp);
MOZ_ASSERT(args.length() == 1);
BigInt* res = ToBigInt(cx, args[0]);
if (!res) {
return false;
}
args.rval().setBigInt(res);
return true;
}
// The self-hosting global isn't initialized with the normal set of builtins.
// Instead, individual C++-implemented functions that're required by
// self-hosted code are defined as global functions. Accessing these
@ -2832,6 +2861,8 @@ static const JSFunctionSpec intrinsic_functions[] = {
JS_FN("PromiseResolve", intrinsic_PromiseResolve, 2, 0),
JS_FN("ToBigInt", intrinsic_ToBigInt, 1, 0),
JS_FS_END};
void js::FillSelfHostingCompileOptions(CompileOptions& options) {

Просмотреть файл

@ -134,8 +134,8 @@ enum StructuredDataType : uint32_t {
SCTAG_TYPED_ARRAY_V1_FLOAT64 = SCTAG_TYPED_ARRAY_V1_MIN + Scalar::Float64,
SCTAG_TYPED_ARRAY_V1_UINT8_CLAMPED =
SCTAG_TYPED_ARRAY_V1_MIN + Scalar::Uint8Clamped,
SCTAG_TYPED_ARRAY_V1_MAX =
SCTAG_TYPED_ARRAY_V1_MIN + Scalar::MaxTypedArrayViewType - 1,
// BigInt64 and BigUint64 are not supported in the v1 format.
SCTAG_TYPED_ARRAY_V1_MAX = SCTAG_TYPED_ARRAY_V1_UINT8_CLAMPED,
// Define a separate range of numbers for Transferable-only tags, since
// they are not used for persistent clone buffers and therefore do not
@ -2082,7 +2082,7 @@ bool JSStructuredCloneReader::readTypedArray(uint32_t arrayType,
uint32_t nelems,
MutableHandleValue vp,
bool v1Read) {
if (arrayType > Scalar::Uint8Clamped) {
if (arrayType > (v1Read ? Scalar::Uint8Clamped : Scalar::BigUint64)) {
JS_ReportErrorNumberASCII(context(), GetErrorMessage, nullptr,
JSMSG_SC_BAD_SERIALIZED_DATA,
"unhandled typed array element type");
@ -2153,6 +2153,14 @@ bool JSStructuredCloneReader::readTypedArray(uint32_t arrayType,
obj = JS_NewUint8ClampedArrayWithBuffer(context(), buffer, byteOffset,
nelems);
break;
case Scalar::BigInt64:
obj =
JS_NewBigInt64ArrayWithBuffer(context(), buffer, byteOffset, nelems);
break;
case Scalar::BigUint64:
obj =
JS_NewBigUint64ArrayWithBuffer(context(), buffer, byteOffset, nelems);
break;
default:
MOZ_CRASH("Can't happen: arrayType range checked above");
}
@ -2349,6 +2357,8 @@ bool JSStructuredCloneReader::readV1ArrayBuffer(uint32_t arrayType,
case Scalar::Float32:
return in.readArray((uint32_t*)buffer.dataPointer(), nelems);
case Scalar::Float64:
case Scalar::BigInt64:
case Scalar::BigUint64:
return in.readArray((uint64_t*)buffer.dataPointer(), nelems);
default:
MOZ_CRASH("Can't happen: arrayType range checked by caller");

Просмотреть файл

@ -70,6 +70,16 @@ inline uint32_t ConvertNumber<uint32_t, float>(float src) {
return JS::ToUint32(src);
}
template <>
inline int64_t ConvertNumber<int64_t, float>(float src) {
return JS::ToInt64(src);
}
template <>
inline uint64_t ConvertNumber<uint64_t, float>(float src) {
return JS::ToUint64(src);
}
template <>
inline int8_t ConvertNumber<int8_t, double>(double src) {
return JS::ToInt8(src);
@ -105,6 +115,16 @@ inline uint32_t ConvertNumber<uint32_t, double>(double src) {
return JS::ToUint32(src);
}
template <>
inline int64_t ConvertNumber<int64_t, double>(double src) {
return JS::ToInt64(src);
}
template <>
inline uint64_t ConvertNumber<uint64_t, double>(double src) {
return JS::ToUint64(src);
}
template <typename To, typename From>
inline To ConvertNumber(From src) {
static_assert(
@ -149,6 +169,16 @@ struct TypeIDOfType<uint32_t> {
static const JSProtoKey protoKey = JSProto_Uint32Array;
};
template <>
struct TypeIDOfType<int64_t> {
static const Scalar::Type id = Scalar::BigInt64;
static const JSProtoKey protoKey = JSProto_BigInt64Array;
};
template <>
struct TypeIDOfType<uint64_t> {
static const Scalar::Type id = Scalar::BigUint64;
static const JSProtoKey protoKey = JSProto_BigUint64Array;
};
template <>
struct TypeIDOfType<float> {
static const Scalar::Type id = Scalar::Float32;
static const JSProtoKey protoKey = JSProto_Float32Array;
@ -331,6 +361,20 @@ class ElementSpecific {
}
break;
}
case Scalar::BigInt64: {
SharedMem<int64_t*> src = data.cast<int64_t*>();
for (uint32_t i = 0; i < count; ++i) {
Ops::store(dest++, ConvertNumber<T>(Ops::load(src++)));
}
break;
}
case Scalar::BigUint64: {
SharedMem<uint64_t*> src = data.cast<uint64_t*>();
for (uint32_t i = 0; i < count; ++i) {
Ops::store(dest++, ConvertNumber<T>(Ops::load(src++)));
}
break;
}
case Scalar::Float32: {
SharedMem<float*> src = data.cast<float*>();
for (uint32_t i = 0; i < count; ++i) {
@ -377,12 +421,13 @@ class ElementSpecific {
SharedMem<T*> dest =
target->dataPointerEither().template cast<T*>() + offset;
MOZ_ASSERT(!canConvertInfallibly(MagicValue(JS_ELEMENTS_HOLE)),
MOZ_ASSERT(
!canConvertInfallibly(MagicValue(JS_ELEMENTS_HOLE), target->type()),
"the following loop must abort on holes");
const Value* srcValues = source->as<NativeObject>().getDenseElements();
for (; i < bound; i++) {
if (!canConvertInfallibly(srcValues[i])) {
if (!canConvertInfallibly(srcValues[i], target->type())) {
break;
}
Ops::store(dest + i, infallibleValueToNative(srcValues[i]));
@ -441,7 +486,7 @@ class ElementSpecific {
const Value* srcValues = source->getDenseElements();
for (; i < len; i++) {
if (!canConvertInfallibly(srcValues[i])) {
if (!canConvertInfallibly(srcValues[i], target->type())) {
break;
}
Ops::store(dest + i, infallibleValueToNative(srcValues[i]));
@ -560,6 +605,20 @@ class ElementSpecific {
}
break;
}
case Scalar::BigInt64: {
int64_t* src = static_cast<int64_t*>(data);
for (uint32_t i = 0; i < len; ++i) {
Ops::store(dest++, ConvertNumber<T>(*src++));
}
break;
}
case Scalar::BigUint64: {
uint64_t* src = static_cast<uint64_t*>(data);
for (uint32_t i = 0; i < len; ++i) {
Ops::store(dest++, ConvertNumber<T>(*src++));
}
break;
}
case Scalar::Float32: {
float* src = static_cast<float*>(data);
for (uint32_t i = 0; i < len; ++i) {
@ -583,7 +642,10 @@ class ElementSpecific {
return true;
}
static bool canConvertInfallibly(const Value& v) {
static bool canConvertInfallibly(const Value& v, Scalar::Type type) {
if (type == Scalar::BigInt64 || type == Scalar::BigUint64) {
return false;
}
return v.isNumber() || v.isBoolean() || v.isNull() || v.isUndefined();
}
@ -608,11 +670,21 @@ class ElementSpecific {
static bool valueToNative(JSContext* cx, HandleValue v, T* result) {
MOZ_ASSERT(!v.isMagic());
if (MOZ_LIKELY(canConvertInfallibly(v))) {
if (MOZ_LIKELY(canConvertInfallibly(v, TypeIDOfType<T>::id))) {
*result = infallibleValueToNative(v);
return true;
}
if (std::is_same<T, int64_t>::value) {
JS_TRY_VAR_OR_RETURN_FALSE(cx, *result, ToBigInt64(cx, v));
return true;
}
if (std::is_same<T, uint64_t>::value) {
JS_TRY_VAR_OR_RETURN_FALSE(cx, *result, ToBigUint64(cx, v));
return true;
}
double d;
MOZ_ASSERT(v.isString() || v.isObject() || v.isSymbol() || v.isBigInt());
if (!(v.isString() ? StringToNumber(cx, v.toString(), &d)

Просмотреть файл

@ -67,6 +67,33 @@ using mozilla::IsAsciiDigit;
* the subclasses.
*/
bool TypedArrayObject::convertForSideEffect(JSContext* cx,
HandleValue v) const {
switch (type()) {
case Scalar::BigInt64:
case Scalar::BigUint64: {
return ToBigInt(cx, v) != nullptr;
}
case Scalar::Int8:
case Scalar::Uint8:
case Scalar::Int16:
case Scalar::Uint16:
case Scalar::Int32:
case Scalar::Uint32:
case Scalar::Float32:
case Scalar::Float64:
case Scalar::Uint8Clamped: {
double ignore;
return ToNumber(cx, v, &ignore);
}
case Scalar::MaxTypedArrayViewType:
case Scalar::Int64:
MOZ_CRASH("Unsupported TypedArray type");
}
MOZ_ASSERT_UNREACHABLE("Invalid scalar type");
return false;
}
/* static */
bool TypedArrayObject::is(HandleValue v) {
return v.isObject() && v.toObject().is<TypedArrayObject>();
@ -341,29 +368,7 @@ class TypedArrayObjectTemplate : public TypedArrayObject {
return v.isObject() && v.toObject().hasClass(instanceClass());
}
static void setIndexValue(TypedArrayObject& tarray, uint32_t index,
double d) {
// If the array is an integer array, we only handle up to
// 32-bit ints from this point on. if we want to handle
// 64-bit ints, we'll need some changes.
// Assign based on characteristics of the destination type
if (ArrayTypeIsFloatingPoint()) {
setIndex(tarray, index, NativeType(d));
} else if (ArrayTypeIsUnsigned()) {
MOZ_ASSERT(sizeof(NativeType) <= 4);
uint32_t n = ToUint32(d);
setIndex(tarray, index, NativeType(n));
} else if (ArrayTypeID() == Scalar::Uint8Clamped) {
// The uint8_clamped type has a special rounding converter
// for doubles.
setIndex(tarray, index, NativeType(d));
} else {
MOZ_ASSERT(sizeof(NativeType) <= 4);
int32_t n = ToInt32(d);
setIndex(tarray, index, NativeType(n));
}
}
static bool convertValue(JSContext* cx, HandleValue v, NativeType* result);
static TypedArrayObject* newBuiltinClassInstance(JSContext* cx,
gc::AllocKind allocKind,
@ -970,9 +975,131 @@ class TypedArrayObjectTemplate : public TypedArrayObject {
tarray.dataPointerEither().cast<NativeType*>() + index, val);
}
static Value getIndexValue(TypedArrayObject* tarray, uint32_t index);
static bool getElement(JSContext* cx, TypedArrayObject* tarray,
uint32_t index, MutableHandleValue val);
static bool getElementPure(TypedArrayObject* tarray, uint32_t index,
Value* vp);
static bool setElement(JSContext* cx, Handle<TypedArrayObject*> obj,
uint64_t index, HandleValue v, ObjectOpResult& result);
static bool defineElement(JSContext* cx, HandleObject obj, uint64_t index,
HandleValue v, ObjectOpResult& result);
};
template <typename NativeType>
bool TypedArrayObjectTemplate<NativeType>::convertValue(JSContext* cx,
HandleValue v,
NativeType* result) {
double d;
if (!ToNumber(cx, v, &d)) {
return false;
}
#ifdef JS_MORE_DETERMINISTIC
// See the comment in ElementSpecific::doubleToNative.
d = JS::CanonicalizeNaN(d);
#endif
// Assign based on characteristics of the destination type
if (ArrayTypeIsFloatingPoint()) {
*result = NativeType(d);
} else if (ArrayTypeIsUnsigned()) {
MOZ_ASSERT(sizeof(NativeType) <= 4);
uint32_t n = ToUint32(d);
*result = NativeType(n);
} else if (ArrayTypeID() == Scalar::Uint8Clamped) {
// The uint8_clamped type has a special rounding converter
// for doubles.
*result = NativeType(d);
} else {
MOZ_ASSERT(sizeof(NativeType) <= 4);
int32_t n = ToInt32(d);
*result = NativeType(n);
}
return true;
}
template <>
bool TypedArrayObjectTemplate<int64_t>::convertValue(JSContext* cx,
HandleValue v,
int64_t* result) {
JS_TRY_VAR_OR_RETURN_FALSE(cx, *result, ToBigInt64(cx, v));
return true;
}
template <>
bool TypedArrayObjectTemplate<uint64_t>::convertValue(JSContext* cx,
HandleValue v,
uint64_t* result) {
JS_TRY_VAR_OR_RETURN_FALSE(cx, *result, ToBigUint64(cx, v));
return true;
}
// https://tc39.github.io/proposal-bigint/#sec-integerindexedelementset
// 7.8 IntegerIndexedElementSet ( O, index, value )
template <typename NativeType>
/* static */ bool TypedArrayObjectTemplate<NativeType>::setElement(
JSContext* cx, Handle<TypedArrayObject*> obj, uint64_t index, HandleValue v,
ObjectOpResult& result) {
// Steps 1-2 are enforced by the caller.
// Steps 3-6.
NativeType nativeValue;
if (!convertValue(cx, v, &nativeValue)) {
return false;
}
// Step 8.
if (obj->hasDetachedBuffer()) {
return result.failSoft(JSMSG_TYPED_ARRAY_DETACHED);
}
// Steps 9-10 are enforced by the caller.
// Step 11.
uint32_t length = obj->length();
// Step 12.
if (index >= length) {
return result.failSoft(JSMSG_BAD_INDEX);
}
// Steps 7, 13-16.
TypedArrayObjectTemplate<NativeType>::setIndex(*obj, index, nativeValue);
// Step 17.
return result.succeed();
}
// Version of IntegerIndexedElementSet with no length check, used in
// [[DefineOwnProperty]]
template <typename NativeType>
/* static */ bool TypedArrayObjectTemplate<NativeType>::defineElement(
JSContext* cx, HandleObject obj, uint64_t index, HandleValue v,
ObjectOpResult& result) {
// Steps 1-2 are enforced by the caller.
// Steps 3-6.
NativeType nativeValue;
if (!convertValue(cx, v, &nativeValue)) {
return false;
}
// Step 8.
if (obj->as<TypedArrayObject>().hasDetachedBuffer()) {
return result.fail(JSMSG_TYPED_ARRAY_DETACHED);
}
// Steps 9-12 are enforced by the caller.
// Steps 7, 13-16.
TypedArrayObjectTemplate<NativeType>::setIndex(obj->as<TypedArrayObject>(),
index, nativeValue);
// Step 17.
return result.succeed();
}
#define CREATE_TYPE_FOR_TYPED_ARRAY(T, N) \
typedef TypedArrayObjectTemplate<T> N##Array;
JS_FOR_EACH_TYPED_ARRAY(CREATE_TYPE_FOR_TYPED_ARRAY)
@ -1222,6 +1349,13 @@ template <typename T>
return nullptr;
}
// BigInt proposal 7.24, step 19.c.
if (Scalar::isBigIntType(ArrayTypeID()) !=
Scalar::isBigIntType(srcArray->type())) {
JS_ReportErrorNumberASCII(cx, GetErrorMessage, nullptr, JSMSG_NOT_BIGINT);
return nullptr;
}
// Steps 3-4 (remaining part), 20-23.
Rooted<TypedArrayObject*> obj(
cx, makeInstance(cx, buffer, CreateSingleton::No, 0, elementLength, proto,
@ -1629,6 +1763,12 @@ bool TypedArrayObject::set_impl(JSContext* cx, const CallArgs& args) {
return false;
}
if (Scalar::isBigIntType(target->type()) !=
Scalar::isBigIntType(srcTypedArray->type())) {
JS_ReportErrorNumberASCII(cx, GetErrorMessage, nullptr, JSMSG_NOT_BIGINT);
return false;
}
// Steps 13-21, 23-28.
switch (target->type()) {
#define SET_FROM_TYPED_ARRAY(T, N) \
@ -1790,35 +1930,40 @@ static const ClassSpec TypedArrayObjectSharedTypedArrayPrototypeClassSpec = {
namespace {
// this default implementation is only valid for integer types
// less than 32-bits in size.
// This default implementation is only valid for integer types less
// than 32-bits in size.
template <typename NativeType>
Value TypedArrayObjectTemplate<NativeType>::getIndexValue(
TypedArrayObject* tarray, uint32_t index) {
bool TypedArrayObjectTemplate<NativeType>::getElementPure(
TypedArrayObject* tarray, uint32_t index, Value* vp) {
static_assert(sizeof(NativeType) < 4,
"this method must only handle NativeType values that are "
"always exact int32_t values");
return Int32Value(getIndex(tarray, index));
*vp = Int32Value(getIndex(tarray, index));
return true;
}
// and we need to specialize for 32-bit integers and floats
// We need to specialize for floats and other integer types.
template <>
Value TypedArrayObjectTemplate<int32_t>::getIndexValue(TypedArrayObject* tarray,
uint32_t index) {
return Int32Value(getIndex(tarray, index));
bool TypedArrayObjectTemplate<int32_t>::getElementPure(TypedArrayObject* tarray,
uint32_t index,
Value* vp) {
*vp = Int32Value(getIndex(tarray, index));
return true;
}
template <>
Value TypedArrayObjectTemplate<uint32_t>::getIndexValue(
TypedArrayObject* tarray, uint32_t index) {
bool TypedArrayObjectTemplate<uint32_t>::getElementPure(
TypedArrayObject* tarray, uint32_t index, Value* vp) {
uint32_t val = getIndex(tarray, index);
return NumberValue(val);
*vp = NumberValue(val);
return true;
}
template <>
Value TypedArrayObjectTemplate<float>::getIndexValue(TypedArrayObject* tarray,
uint32_t index) {
bool TypedArrayObjectTemplate<float>::getElementPure(TypedArrayObject* tarray,
uint32_t index,
Value* vp) {
float val = getIndex(tarray, index);
double dval = val;
@ -1832,12 +1977,14 @@ Value TypedArrayObjectTemplate<float>::getIndexValue(TypedArrayObject* tarray,
* This could be removed for platforms/compilers known to convert a 32-bit
* non-canonical nan to a 64-bit canonical nan.
*/
return DoubleValue(CanonicalizeNaN(dval));
*vp = DoubleValue(CanonicalizeNaN(dval));
return true;
}
template <>
Value TypedArrayObjectTemplate<double>::getIndexValue(TypedArrayObject* tarray,
uint32_t index) {
bool TypedArrayObjectTemplate<double>::getElementPure(TypedArrayObject* tarray,
uint32_t index,
Value* vp) {
double val = getIndex(tarray, index);
/*
@ -1847,99 +1994,130 @@ Value TypedArrayObjectTemplate<double>::getIndexValue(TypedArrayObject* tarray,
* confuse the engine into interpreting a double-typed jsval as an
* object-typed jsval.
*/
return DoubleValue(CanonicalizeNaN(val));
*vp = DoubleValue(CanonicalizeNaN(val));
return true;
}
template <>
bool TypedArrayObjectTemplate<int64_t>::getElementPure(TypedArrayObject* tarray,
uint32_t index,
Value* vp) {
return false;
}
template <>
bool TypedArrayObjectTemplate<uint64_t>::getElementPure(
TypedArrayObject* tarray, uint32_t index, Value* vp) {
return false;
}
} /* anonymous namespace */
Value TypedArrayObject::getElement(uint32_t index) {
namespace {
template <typename NativeType>
bool TypedArrayObjectTemplate<NativeType>::getElement(JSContext* cx,
TypedArrayObject* tarray,
uint32_t index,
MutableHandleValue val) {
MOZ_ALWAYS_TRUE(getElementPure(tarray, index, val.address()));
return true;
}
template <>
bool TypedArrayObjectTemplate<int64_t>::getElement(JSContext* cx,
TypedArrayObject* tarray,
uint32_t index,
MutableHandleValue val) {
int64_t n = getIndex(tarray, index);
BigInt* res = BigInt::createFromInt64(cx, n);
if (!res) {
return false;
}
val.setBigInt(res);
return true;
}
template <>
bool TypedArrayObjectTemplate<uint64_t>::getElement(JSContext* cx,
TypedArrayObject* tarray,
uint32_t index,
MutableHandleValue val) {
uint64_t n = getIndex(tarray, index);
BigInt* res = BigInt::createFromUint64(cx, n);
if (!res) {
return false;
}
val.setBigInt(res);
return true;
}
} /* anonymous namespace */
namespace js {
template <>
bool TypedArrayObject::getElement<CanGC>(JSContext* cx, uint32_t index,
MutableHandleValue val) {
switch (type()) {
case Scalar::Int8:
return Int8Array::getIndexValue(this, index);
case Scalar::Uint8:
return Uint8Array::getIndexValue(this, index);
case Scalar::Int16:
return Int16Array::getIndexValue(this, index);
case Scalar::Uint16:
return Uint16Array::getIndexValue(this, index);
case Scalar::Int32:
return Int32Array::getIndexValue(this, index);
case Scalar::Uint32:
return Uint32Array::getIndexValue(this, index);
case Scalar::Float32:
return Float32Array::getIndexValue(this, index);
case Scalar::Float64:
return Float64Array::getIndexValue(this, index);
case Scalar::Uint8Clamped:
return Uint8ClampedArray::getIndexValue(this, index);
case Scalar::Int64:
#define GET_ELEMENT(T, N) \
case Scalar::N: \
return N##Array::getElement(cx, this, index, val);
JS_FOR_EACH_TYPED_ARRAY(GET_ELEMENT)
#undef GET_ELEMENT
case Scalar::MaxTypedArrayViewType:
case Scalar::Int64:
break;
}
MOZ_CRASH("Unknown TypedArray type");
}
void TypedArrayObject::setElement(TypedArrayObject& obj, uint32_t index,
double d) {
MOZ_ASSERT(index < obj.length());
template <>
bool TypedArrayObject::getElement<NoGC>(
JSContext* cx, uint32_t index,
typename MaybeRooted<Value, NoGC>::MutableHandleType vp) {
return getElementPure(index, vp.address());
}
#ifdef JS_MORE_DETERMINISTIC
// See the comment in ElementSpecific::doubleToNative.
d = JS::CanonicalizeNaN(d);
#endif
} // namespace js
switch (obj.type()) {
case Scalar::Int8:
Int8Array::setIndexValue(obj, index, d);
return;
case Scalar::Uint8:
Uint8Array::setIndexValue(obj, index, d);
return;
case Scalar::Uint8Clamped:
Uint8ClampedArray::setIndexValue(obj, index, d);
return;
case Scalar::Int16:
Int16Array::setIndexValue(obj, index, d);
return;
case Scalar::Uint16:
Uint16Array::setIndexValue(obj, index, d);
return;
case Scalar::Int32:
Int32Array::setIndexValue(obj, index, d);
return;
case Scalar::Uint32:
Uint32Array::setIndexValue(obj, index, d);
return;
case Scalar::Float32:
Float32Array::setIndexValue(obj, index, d);
return;
case Scalar::Float64:
Float64Array::setIndexValue(obj, index, d);
return;
case Scalar::Int64:
bool TypedArrayObject::getElementPure(uint32_t index, Value* vp) {
switch (type()) {
#define GET_ELEMENT_PURE(T, N) \
case Scalar::N: \
return N##Array::getElementPure(this, index, vp);
JS_FOR_EACH_TYPED_ARRAY(GET_ELEMENT_PURE)
#undef GET_ELEMENT
case Scalar::MaxTypedArrayViewType:
case Scalar::Int64:
break;
}
MOZ_CRASH("Unknown TypedArray type");
}
void TypedArrayObject::getElements(Value* vp) {
uint32_t length = this->length();
MOZ_ASSERT_IF(length > 0, !hasDetachedBuffer());
/* static */
bool TypedArrayObject::getElements(JSContext* cx, Handle<TypedArrayObject*> tarray, Value* vp) {
uint32_t length = tarray->length();
MOZ_ASSERT_IF(length > 0, !tarray->hasDetachedBuffer());
switch (type()) {
switch (tarray->type()) {
#define GET_ELEMENTS(T, N) \
case Scalar::N: \
for (uint32_t i = 0; i < length; ++i, ++vp) \
*vp = N##Array::getIndexValue(this, i); \
break;
for (uint32_t i = 0; i < length; ++i, ++vp) { \
if (!N##Array::getElement(cx, tarray, i, \
MutableHandleValue::fromMarkedLocation(vp))) { \
return false; \
} \
} \
return true;
JS_FOR_EACH_TYPED_ARRAY(GET_ELEMENTS)
#undef GET_ELEMENTS
default:
MOZ_CRASH("Unknown TypedArray type");
case Scalar::MaxTypedArrayViewType:
case Scalar::Int64:
break;
}
MOZ_CRASH("Unknown TypedArray type");
}
/***
@ -2065,6 +2243,10 @@ bool js::IsTypedArrayConstructor(HandleValue v, uint32_t type) {
return IsNativeFunction(v, Int32Array::class_constructor);
case Scalar::Uint32:
return IsNativeFunction(v, Uint32Array::class_constructor);
case Scalar::BigInt64:
return IsNativeFunction(v, BigInt64Array::class_constructor);
case Scalar::BigUint64:
return IsNativeFunction(v, BigUint64Array::class_constructor);
case Scalar::Float32:
return IsNativeFunction(v, Float32Array::class_constructor);
case Scalar::Float64:
@ -2170,6 +2352,25 @@ template bool js::StringIsTypedArrayIndex(const char16_t* s, size_t length,
template bool js::StringIsTypedArrayIndex(const Latin1Char* s, size_t length,
uint64_t* indexp);
bool js::SetTypedArrayElement(JSContext* cx, Handle<TypedArrayObject*> obj,
uint64_t index, HandleValue v,
ObjectOpResult& result) {
TypedArrayObject* tobj = &obj->as<TypedArrayObject>();
switch (tobj->type()) {
#define SET_TYPED_ARRAY_ELEMENT(T, N) \
case Scalar::N: \
return TypedArrayObjectTemplate<T>::setElement(cx, obj, index, v, result);
JS_FOR_EACH_TYPED_ARRAY(SET_TYPED_ARRAY_ELEMENT)
#undef SET_TYPED_ARRAY_ELEMENT
case Scalar::MaxTypedArrayViewType:
case Scalar::Int64:
break;
}
MOZ_CRASH("Unsupported TypedArray type");
}
/* ES6 draft rev 34 (2015 Feb 20) 9.4.5.3 [[DefineOwnProperty]] step 3.c. */
bool js::DefineTypedArrayElement(JSContext* cx, HandleObject obj,
uint64_t index,
@ -2213,24 +2414,20 @@ bool js::DefineTypedArrayElement(JSContext* cx, HandleObject obj,
// Step x.
if (desc.hasValue()) {
// The following step numbers refer to 9.4.5.9
// IntegerIndexedElementSet.
// Steps 1-2 are enforced by the caller.
// Step 3.
double numValue;
if (!ToNumber(cx, desc.value(), &numValue)) {
return false;
TypedArrayObject* tobj = &obj->as<TypedArrayObject>();
switch (tobj->type()) {
#define DEFINE_TYPED_ARRAY_ELEMENT(T, N) \
case Scalar::N: \
return TypedArrayObjectTemplate<T>::defineElement(cx, obj, index, \
desc.value(), result);
JS_FOR_EACH_TYPED_ARRAY(DEFINE_TYPED_ARRAY_ELEMENT)
#undef DEFINE_TYPED_ARRAY_ELEMENT
case Scalar::MaxTypedArrayViewType:
case Scalar::Int64:
break;
}
// Steps 4-5, 8-9.
if (obj->as<TypedArrayObject>().hasDetachedBuffer()) {
return result.fail(JSMSG_TYPED_ARRAY_DETACHED);
}
// Steps 10-16.
TypedArrayObject::setElement(obj->as<TypedArrayObject>(), index, numValue);
MOZ_CRASH("Unsupported TypedArray type");
}
// Step xii.

Просмотреть файл

@ -26,7 +26,9 @@
MACRO(uint32_t, Uint32) \
MACRO(float, Float32) \
MACRO(double, Float64) \
MACRO(uint8_clamped, Uint8Clamped)
MACRO(uint8_clamped, Uint8Clamped) \
MACRO(int64_t, BigInt64) \
MACRO(uint64_t, BigUint64)
namespace js {
@ -129,14 +131,16 @@ class TypedArrayObject : public ArrayBufferViewObject {
void assertZeroLengthArrayData() const {};
#endif
Value getElement(uint32_t index);
static void setElement(TypedArrayObject& obj, uint32_t index, double d);
template <AllowGC allowGC>
bool getElement(JSContext* cx, uint32_t index,
typename MaybeRooted<Value, allowGC>::MutableHandleType val);
bool getElementPure(uint32_t index, Value* vp);
/*
* Copy all elements from this typed array to vp. vp must point to rooted
* memory.
*/
void getElements(Value* vp);
static bool getElements(JSContext* cx, Handle<TypedArrayObject*> tarray, Value* vp);
static bool GetTemplateObjectForNative(JSContext* cx, Native native,
const JS::HandleValueArray args,
@ -186,6 +190,8 @@ class TypedArrayObject : public ArrayBufferViewObject {
static bool set(JSContext* cx, unsigned argc, Value* vp);
bool convertForSideEffect(JSContext* cx, HandleValue v) const;
private:
static bool set_impl(JSContext* cx, const CallArgs& args);
};
@ -267,6 +273,10 @@ inline bool IsTypedArrayIndex(jsid id, uint64_t* indexp) {
return StringIsTypedArrayIndex(s, length, indexp);
}
bool SetTypedArrayElement(JSContext* cx, Handle<TypedArrayObject*> obj,
uint64_t index, HandleValue v,
ObjectOpResult& result);
/*
* Implements [[DefineOwnProperty]] for TypedArrays when the property
* key is a TypedArray index.
@ -288,6 +298,8 @@ static inline constexpr unsigned TypedArrayShift(Scalar::Type viewType) {
case Scalar::Uint32:
case Scalar::Float32:
return 2;
case Scalar::BigInt64:
case Scalar::BigUint64:
case Scalar::Int64:
case Scalar::Float64:
return 3;

Просмотреть файл

@ -6594,6 +6594,10 @@ static bool ValidateArrayView(JSContext* cx, const AsmJSGlobal& global,
return true;
}
if (Scalar::isBigIntType(global.viewType())) {
return LinkFail(cx, "bad typed array constructor");
}
RootedValue v(cx);
if (!GetDataProperty(cx, globalVal, global.field(), &v)) {
return false;