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031533f04d
It seems like these native methods are defined in C++ code but not used from Dart code. This CL cleans them up. R=vegorov@google.com, zra@google.com Digging into history reveals that the following CL replaced these native methods with Dart implementation: https://codereview.chromium.org//860963002 Review-Url: https://codereview.chromium.org/2983433002 .
244 lines
12 KiB
C++
244 lines
12 KiB
C++
// Copyright (c) 2013, the Dart project authors. Please see the AUTHORS file
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// for details. All rights reserved. Use of this source code is governed by a
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// BSD-style license that can be found in the LICENSE file.
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#include "vm/bootstrap_natives.h"
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#include "include/dart_api.h"
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#include "vm/exceptions.h"
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#include "vm/native_entry.h"
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#include "vm/object.h"
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namespace dart {
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// TypedData.
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// Checks to see if offsetInBytes + num_bytes is in the range.
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static void RangeCheck(intptr_t offset_in_bytes,
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intptr_t access_size,
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intptr_t length_in_bytes,
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intptr_t element_size_in_bytes) {
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if (!Utils::RangeCheck(offset_in_bytes, access_size, length_in_bytes)) {
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const intptr_t index =
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(offset_in_bytes + access_size) / element_size_in_bytes;
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const intptr_t length = length_in_bytes / element_size_in_bytes;
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Exceptions::ThrowRangeError("index", Integer::Handle(Integer::New(index)),
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0, length);
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}
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}
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// Checks to see if a length will not result in an OOM error.
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static void LengthCheck(intptr_t len, intptr_t max) {
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if (len < 0 || len > max) {
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const String& error = String::Handle(String::NewFormatted(
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"Length (%" Pd ") of object must be in range [0..%" Pd "]", len, max));
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Exceptions::ThrowArgumentError(error);
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}
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}
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DEFINE_NATIVE_ENTRY(TypedData_length, 1) {
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GET_NON_NULL_NATIVE_ARGUMENT(Instance, instance, arguments->NativeArgAt(0));
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if (instance.IsTypedData()) {
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const TypedData& array = TypedData::Cast(instance);
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return Smi::New(array.Length());
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}
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if (instance.IsExternalTypedData()) {
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const ExternalTypedData& array = ExternalTypedData::Cast(instance);
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return Smi::New(array.Length());
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}
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const String& error = String::Handle(String::NewFormatted(
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"Expected a TypedData object but found %s", instance.ToCString()));
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Exceptions::ThrowArgumentError(error);
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return Integer::null();
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}
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template <typename DstType, typename SrcType>
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static RawBool* CopyData(const Instance& dst,
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const Instance& src,
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const Smi& dst_start,
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const Smi& src_start,
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const Smi& length,
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bool clamped) {
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const DstType& dst_array = DstType::Cast(dst);
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const SrcType& src_array = SrcType::Cast(src);
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const intptr_t dst_offset_in_bytes = dst_start.Value();
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const intptr_t src_offset_in_bytes = src_start.Value();
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const intptr_t length_in_bytes = length.Value();
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ASSERT(Utils::RangeCheck(src_offset_in_bytes, length_in_bytes,
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src_array.LengthInBytes()));
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ASSERT(Utils::RangeCheck(dst_offset_in_bytes, length_in_bytes,
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dst_array.LengthInBytes()));
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if (clamped) {
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TypedData::ClampedCopy<DstType, SrcType>(dst_array, dst_offset_in_bytes,
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src_array, src_offset_in_bytes,
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length_in_bytes);
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} else {
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TypedData::Copy<DstType, SrcType>(dst_array, dst_offset_in_bytes, src_array,
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src_offset_in_bytes, length_in_bytes);
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}
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return Bool::True().raw();
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}
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static bool IsClamped(intptr_t cid) {
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switch (cid) {
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case kTypedDataUint8ClampedArrayCid:
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case kExternalTypedDataUint8ClampedArrayCid:
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case kTypedDataUint8ClampedArrayViewCid:
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return true;
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default:
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return false;
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}
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}
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static bool IsUint8(intptr_t cid) {
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switch (cid) {
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case kTypedDataUint8ClampedArrayCid:
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case kExternalTypedDataUint8ClampedArrayCid:
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case kTypedDataUint8ClampedArrayViewCid:
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case kTypedDataUint8ArrayCid:
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case kExternalTypedDataUint8ArrayCid:
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case kTypedDataUint8ArrayViewCid:
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return true;
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default:
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return false;
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}
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}
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DEFINE_NATIVE_ENTRY(TypedData_setRange, 7) {
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const Instance& dst = Instance::CheckedHandle(arguments->NativeArgAt(0));
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const Smi& dst_start = Smi::CheckedHandle(arguments->NativeArgAt(1));
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const Smi& length = Smi::CheckedHandle(arguments->NativeArgAt(2));
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const Instance& src = Instance::CheckedHandle(arguments->NativeArgAt(3));
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const Smi& src_start = Smi::CheckedHandle(arguments->NativeArgAt(4));
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const Smi& to_cid_smi = Smi::CheckedHandle(arguments->NativeArgAt(5));
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const Smi& from_cid_smi = Smi::CheckedHandle(arguments->NativeArgAt(6));
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if (length.Value() < 0) {
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const String& error = String::Handle(String::NewFormatted(
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"length (%" Pd ") must be non-negative", length.Value()));
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Exceptions::ThrowArgumentError(error);
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}
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const intptr_t to_cid = to_cid_smi.Value();
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const intptr_t from_cid = from_cid_smi.Value();
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const bool needs_clamping = IsClamped(to_cid) && !IsUint8(from_cid);
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if (dst.IsTypedData()) {
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if (src.IsTypedData()) {
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return CopyData<TypedData, TypedData>(dst, src, dst_start, src_start,
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length, needs_clamping);
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} else if (src.IsExternalTypedData()) {
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return CopyData<TypedData, ExternalTypedData>(
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dst, src, dst_start, src_start, length, needs_clamping);
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}
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} else if (dst.IsExternalTypedData()) {
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if (src.IsTypedData()) {
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return CopyData<ExternalTypedData, TypedData>(
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dst, src, dst_start, src_start, length, needs_clamping);
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} else if (src.IsExternalTypedData()) {
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return CopyData<ExternalTypedData, ExternalTypedData>(
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dst, src, dst_start, src_start, length, needs_clamping);
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}
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}
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UNREACHABLE();
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return Bool::False().raw();
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}
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// We check the length parameter against a possible maximum length for the
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// array based on available physical addressable memory on the system. The
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// maximum possible length is a scaled value of kSmiMax which is set up based
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// on whether the underlying architecture is 32-bit or 64-bit.
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// Argument 0 is type arguments and is ignored.
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#define TYPED_DATA_NEW(name) \
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DEFINE_NATIVE_ENTRY(TypedData_##name##_new, 2) { \
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GET_NON_NULL_NATIVE_ARGUMENT(Smi, length, arguments->NativeArgAt(1)); \
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intptr_t cid = kTypedData##name##Cid; \
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intptr_t len = length.Value(); \
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intptr_t max = TypedData::MaxElements(cid); \
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LengthCheck(len, max); \
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return TypedData::New(cid, len); \
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}
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#define TYPED_DATA_NEW_NATIVE(name) TYPED_DATA_NEW(name)
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CLASS_LIST_TYPED_DATA(TYPED_DATA_NEW_NATIVE)
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#define TYPED_DATA_GETTER(getter, object, ctor, access_size) \
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DEFINE_NATIVE_ENTRY(TypedData_##getter, 2) { \
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GET_NON_NULL_NATIVE_ARGUMENT(Instance, instance, \
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arguments->NativeArgAt(0)); \
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GET_NON_NULL_NATIVE_ARGUMENT(Smi, offsetInBytes, \
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arguments->NativeArgAt(1)); \
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if (instance.IsTypedData()) { \
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const TypedData& array = TypedData::Cast(instance); \
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RangeCheck(offsetInBytes.Value(), access_size, array.LengthInBytes(), \
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access_size); \
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return object::ctor(array.getter(offsetInBytes.Value())); \
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} \
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if (instance.IsExternalTypedData()) { \
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const ExternalTypedData& array = ExternalTypedData::Cast(instance); \
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RangeCheck(offsetInBytes.Value(), access_size, array.LengthInBytes(), \
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access_size); \
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return object::ctor(array.getter(offsetInBytes.Value())); \
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} \
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const String& error = String::Handle(String::NewFormatted( \
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"Expected a TypedData object but found %s", instance.ToCString())); \
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Exceptions::ThrowArgumentError(error); \
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return object::null(); \
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}
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#define TYPED_DATA_SETTER(setter, object, get_object_value, access_size, \
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access_type) \
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DEFINE_NATIVE_ENTRY(TypedData_##setter, 3) { \
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GET_NON_NULL_NATIVE_ARGUMENT(Instance, instance, \
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arguments->NativeArgAt(0)); \
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GET_NON_NULL_NATIVE_ARGUMENT(Smi, offsetInBytes, \
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arguments->NativeArgAt(1)); \
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GET_NON_NULL_NATIVE_ARGUMENT(object, value, arguments->NativeArgAt(2)); \
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if (instance.IsTypedData()) { \
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const TypedData& array = TypedData::Cast(instance); \
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RangeCheck(offsetInBytes.Value(), access_size, array.LengthInBytes(), \
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access_size); \
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array.setter(offsetInBytes.Value(), \
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static_cast<access_type>(value.get_object_value())); \
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} else if (instance.IsExternalTypedData()) { \
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const ExternalTypedData& array = ExternalTypedData::Cast(instance); \
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RangeCheck(offsetInBytes.Value(), access_size, array.LengthInBytes(), \
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access_size); \
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array.setter(offsetInBytes.Value(), \
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static_cast<access_type>(value.get_object_value())); \
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} else { \
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const String& error = String::Handle(String::NewFormatted( \
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"Expected a TypedData object but found %s", instance.ToCString())); \
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Exceptions::ThrowArgumentError(error); \
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} \
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return Object::null(); \
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}
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#define TYPED_DATA_NATIVES(type_name, object, ctor, get_object_value, \
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access_size, access_type) \
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TYPED_DATA_GETTER(Get##type_name, object, ctor, access_size) \
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TYPED_DATA_SETTER(Set##type_name, object, get_object_value, access_size, \
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access_type)
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TYPED_DATA_NATIVES(Int8, Integer, New, AsTruncatedUint32Value, 1, int8_t)
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TYPED_DATA_NATIVES(Uint8, Integer, New, AsTruncatedUint32Value, 1, uint8_t)
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TYPED_DATA_NATIVES(Int16, Integer, New, AsTruncatedUint32Value, 2, int16_t)
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TYPED_DATA_NATIVES(Uint16, Integer, New, AsTruncatedUint32Value, 2, uint16_t)
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TYPED_DATA_NATIVES(Int32, Integer, New, AsTruncatedUint32Value, 4, int32_t)
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TYPED_DATA_NATIVES(Uint32, Integer, New, AsTruncatedUint32Value, 4, uint32_t)
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TYPED_DATA_NATIVES(Int64, Integer, New, AsTruncatedInt64Value, 8, int64_t)
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TYPED_DATA_NATIVES(Uint64,
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Integer,
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NewFromUint64,
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AsTruncatedInt64Value,
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8,
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uint64_t)
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TYPED_DATA_NATIVES(Float32, Double, New, value, 4, float)
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TYPED_DATA_NATIVES(Float64, Double, New, value, 8, double)
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TYPED_DATA_NATIVES(Float32x4, Float32x4, New, value, 16, simd128_value_t)
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TYPED_DATA_NATIVES(Int32x4, Int32x4, New, value, 16, simd128_value_t)
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TYPED_DATA_NATIVES(Float64x2, Float64x2, New, value, 16, simd128_value_t)
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} // namespace dart
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