Add initial code-stub version of Object.prototype.hasOwnProperty

src/compiler/code-stub-assembler.h

 // Copyright 2015 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_COMPILER_CODE_STUB_ASSEMBLER_H_
 #define V8_COMPILER_CODE_STUB_ASSEMBLER_H_
 
 #include <map>
 
 // Clients of this interface shouldn't depend on lots of compiler internals.
@@ skipping 292 matching lines @@
   Node* LoadObjectField(Node* object, int offset,
                         MachineType rep = MachineType::AnyTagged());
   // Load the floating point value of a HeapNumber.
   Node* LoadHeapNumberValue(Node* object);
   // Store the floating point value of a HeapNumber.
   Node* StoreHeapNumberValue(Node* object, Node* value);
   // Truncate the floating point value of a HeapNumber to an Int32.
   Node* TruncateHeapNumberValueToWord32(Node* object);
   // Load the bit field of a Map.
   Node* LoadMapBitField(Node* map);
-  // Load the instance type of a Map.
+  // Load bit field 2 of a map.
+  Node* LoadMapBitField2(Node* map);
+  // Load bit field 3 of a map.
+  Node* LoadMapBitField3(Node* map);
+  // Load the instance type of a map.
   Node* LoadMapInstanceType(Node* map);
+  // Load the instance descriptors of a map.
+  Node* LoadMapDescriptors(Node* map);
+
+  // Load the hash field of a name.
+  Node* LoadNameHash(Node* name);
 
   // Load an array element from a FixedArray.
+  Node* LoadFixedArrayElementInt32Index(Node* object, Node* int32_index,
+                                        int additional_offset = 0);
   Node* LoadFixedArrayElementSmiIndex(Node* object, Node* smi_index,
                                       int additional_offset = 0);
   Node* LoadFixedArrayElementConstantIndex(Node* object, int index);
 
   // Allocate an object of the given size.
   Node* Allocate(int size, AllocationFlags flags = kNone);
   // Allocate a HeapNumber without initializing its value.
   Node* AllocateHeapNumber();
   // Allocate a HeapNumber with a specific value.
   Node* AllocateHeapNumberWithValue(Node* value);
 
   // Store an array element to a FixedArray.
   Node* StoreFixedArrayElementNoWriteBarrier(Node* object, Node* index,
                                              Node* value);
   // Load the Map of an HeapObject.
   Node* LoadMap(Node* object);
   // Store the Map of an HeapObject.
   Node* StoreMapNoWriteBarrier(Node* object, Node* map);
   // Load the instance type of an HeapObject.
   Node* LoadInstanceType(Node* object);
 
+  // Load the elements backing store of a JSObject.
+  Node* LoadElements(Node* object);
+  // Load the length of a fixed array base instance.
+  Node* LoadFixedArrayBaseLength(Node* array);
+
   // Returns a node that is true if the given bit is set in |word32|.
   template <typename T>
   Node* BitFieldDecode(Node* word32) {
     return BitFieldDecode(word32, T::kShift, T::kMask);
   }
 
   Node* BitFieldDecode(Node* word32, uint32_t shift, uint32_t mask);
 
   // Conversions.
   Node* ChangeFloat64ToTagged(Node* value);
@@ skipping 101 matching lines @@
   // Map of variables to the list of value nodes that have been added from each
   // merge path in their order of merging.
   std::map<Variable::Impl*, std::vector<Node*>> variable_merges_;
 };
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_COMPILER_CODE_STUB_ASSEMBLER_H_