Revert of Change calling convention of CallApiGetterStub to accept the AccessorInfo

src/ic/arm/handler-compiler-arm.cc

 // Copyright 2014 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.
 
 #if V8_TARGET_ARCH_ARM
 
 #include "src/ic/handler-compiler.h"
 
 #include "src/api-arguments.h"
 #include "src/field-type.h"
@@ skipping 579 matching lines @@
   }
 }
 
 
 void NamedLoadHandlerCompiler::GenerateLoadConstant(Handle<Object> value) {
   // Return the constant value.
   __ Move(r0, value);
   __ Ret();
 }
 
+
+void NamedLoadHandlerCompiler::GenerateLoadCallback(
+    Register reg, Handle<AccessorInfo> callback) {
+  DCHECK(!AreAliased(scratch2(), scratch3(), scratch4(), receiver()));
+  DCHECK(!AreAliased(scratch2(), scratch3(), scratch4(), reg));
+
+  // Build v8::PropertyCallbackInfo::args_ array on the stack and push property
+  // name below the exit frame to make GC aware of them.
+  STATIC_ASSERT(PropertyCallbackArguments::kShouldThrowOnErrorIndex == 0);
+  STATIC_ASSERT(PropertyCallbackArguments::kHolderIndex == 1);
+  STATIC_ASSERT(PropertyCallbackArguments::kIsolateIndex == 2);
+  STATIC_ASSERT(PropertyCallbackArguments::kReturnValueDefaultValueIndex == 3);
+  STATIC_ASSERT(PropertyCallbackArguments::kReturnValueOffset == 4);
+  STATIC_ASSERT(PropertyCallbackArguments::kDataIndex == 5);
+  STATIC_ASSERT(PropertyCallbackArguments::kThisIndex == 6);
+  STATIC_ASSERT(PropertyCallbackArguments::kArgsLength == 7);
+
+  __ push(receiver());
+  // Push data from AccessorInfo.
+  Handle<Object> data(callback->data(), isolate());
+  if (data->IsUndefined() || data->IsSmi()) {
+    __ Move(scratch2(), data);
+  } else {
+    Handle<WeakCell> cell =
+        isolate()->factory()->NewWeakCell(Handle<HeapObject>::cast(data));
+    // The callback is alive if this instruction is executed,
+    // so the weak cell is not cleared and points to data.
+    __ GetWeakValue(scratch2(), cell);
+  }
+  __ push(scratch2());
+  __ LoadRoot(scratch2(), Heap::kUndefinedValueRootIndex);
+  __ Push(scratch2(), scratch2());
+  __ mov(scratch2(), Operand(ExternalReference::isolate_address(isolate())));
+  __ Push(scratch2(), reg);
+  __ Push(Smi::FromInt(0));  // should_throw_on_error -> false
+  __ push(name());
+
+  // Abi for CallApiGetter
+  Register getter_address_reg = ApiGetterDescriptor::function_address();
+
+  Address getter_address = v8::ToCData<Address>(callback->getter());
+  ApiFunction fun(getter_address);
+  ExternalReference::Type type = ExternalReference::DIRECT_GETTER_CALL;
+  ExternalReference ref = ExternalReference(&fun, type, isolate());
+  __ mov(getter_address_reg, Operand(ref));
+
+  CallApiGetterStub stub(isolate());
+  __ TailCallStub(&stub);
+}
+
+
 void NamedLoadHandlerCompiler::GenerateLoadInterceptorWithFollowup(
     LookupIterator* it, Register holder_reg) {
   DCHECK(holder()->HasNamedInterceptor());
   DCHECK(!holder()->GetNamedInterceptor()->getter()->IsUndefined());
 
   // Compile the interceptor call, followed by inline code to load the
   // property from further up the prototype chain if the call fails.
   // Check that the maps haven't changed.
   DCHECK(holder_reg.is(receiver()) || holder_reg.is(scratch1()));
 
@@ skipping 125 matching lines @@
   // Return the generated code.
   return GetCode(kind(), name);
 }
 
 
 #undef __
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_TARGET_ARCH_ARM