1 files changed, 67 insertions, 0 deletions
diff --git a/deps/v8/src/builtins/builtins-data-view-gen.h b/deps/v8/src/builtins/builtins-data-view-gen.h
new file mode 100644
index 0000000000..6c755c4d08
--- /dev/null
+++ b/deps/v8/src/builtins/builtins-data-view-gen.h
@@ -0,0 +1,67 @@
+// Copyright 2018 the V8 project authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef V8_BUILTINS_BUILTINS_DATA_VIEW_GEN_H_
+#define V8_BUILTINS_BUILTINS_DATA_VIEW_GEN_H_
+
+#include "src/elements-kind.h"
+#include "src/objects/bigint.h"
+#include "torque-generated/builtins-base-from-dsl-gen.h"
+
+namespace v8 {
+namespace internal {
+
+class DataViewBuiltinsAssembler : public BaseBuiltinsFromDSLAssembler {
+ public:
+  explicit DataViewBuiltinsAssembler(compiler::CodeAssemblerState* state)
+      : BaseBuiltinsFromDSLAssembler(state) {}
+
+  TNode<Number> LoadDataViewByteOffset(TNode<JSDataView> data_view) {
+    return CAST(LoadObjectField(data_view, JSDataView::kByteOffsetOffset));
+  }
+
+  TNode<Number> LoadDataViewByteLength(TNode<JSDataView> data_view) {
+    return CAST(LoadObjectField(data_view, JSDataView::kByteLengthOffset));
+  }
+
+  TNode<Int32T> LoadUint8(TNode<RawPtrT> data_pointer, TNode<IntPtrT> offset) {
+    return UncheckedCast<Int32T>(
+        Load(MachineType::Uint8(), data_pointer, offset));
+  }
+
+  TNode<Int32T> LoadInt8(TNode<RawPtrT> data_pointer, TNode<IntPtrT> offset) {
+    return UncheckedCast<Int32T>(
+        Load(MachineType::Int8(), data_pointer, offset));
+  }
+
+  void StoreWord8(TNode<RawPtrT> data_pointer, TNode<IntPtrT> offset,
+                  TNode<Word32T> value) {
+    StoreNoWriteBarrier(MachineRepresentation::kWord8, data_pointer, offset,
+                        value);
+  }
+
+  int32_t DataViewElementSize(ElementsKind elements_kind) {
+    return ElementsKindToByteSize(elements_kind);
+  }
+
+  TNode<IntPtrT> DataViewEncodeBigIntBits(bool sign, int32_t digits) {
+    return IntPtrConstant(BigInt::SignBits::encode(sign) |
+                          BigInt::LengthBits::encode(digits));
+  }
+
+  TNode<UintPtrT> DataViewDecodeBigIntLength(TNode<BigInt> value) {
+    TNode<WordT> bitfield = LoadBigIntBitfield(value);
+    return DecodeWord<BigIntBase::LengthBits>(bitfield);
+  }
+
+  TNode<UintPtrT> DataViewDecodeBigIntSign(TNode<BigInt> value) {
+    TNode<WordT> bitfield = LoadBigIntBitfield(value);
+    return DecodeWord<BigIntBase::SignBits>(bitfield);
+  }
+};
+
+}  // namespace internal
+}  // namespace v8
+
+#endif  // V8_BUILTINS_BUILTINS_DATA_VIEW_GEN_H_