Encapsulate type in the PropertyHandlerCompiler

src/arm/stub-cache-arm.cc

 // Copyright 2012 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.
 
 #include "src/v8.h"
 
 #if V8_TARGET_ARCH_ARM
 
 #include "src/codegen.h"
 #include "src/ic-inl.h"
@@ skipping 715 matching lines @@
                                               Handle<Code> code) {
   __ Jump(code, RelocInfo::CODE_TARGET);
 }
 
 
 #undef __
 #define __ ACCESS_MASM(masm())
 
 
 Register PropertyHandlerCompiler::CheckPrototypes(
-    Handle<HeapType> type, Register object_reg, Handle<JSObject> holder,
-    Register holder_reg, Register scratch1, Register scratch2,
-    Handle<Name> name, Label* miss, PrototypeCheckType check) {
-  Handle<Map> receiver_map(IC::TypeToMap(*type, isolate()));
+    Register object_reg, Handle<JSObject> holder, Register holder_reg,
+    Register scratch1, Register scratch2, Handle<Name> name, Label* miss,
+    PrototypeCheckType check) {
+  Handle<Map> receiver_map(IC::TypeToMap(*type(), isolate()));
 
   // Make sure there's no overlap between holder and object registers.
   ASSERT(!scratch1.is(object_reg) && !scratch1.is(holder_reg));
   ASSERT(!scratch2.is(object_reg) && !scratch2.is(holder_reg)
          && !scratch2.is(scratch1));
 
   // Keep track of the current object in register reg.
   Register reg = object_reg;
   int depth = 0;
 
   Handle<JSObject> current = Handle<JSObject>::null();
-  if (type->IsConstant()) {
-    current = Handle<JSObject>::cast(type->AsConstant()->Value());
+  if (type()->IsConstant()) {
+    current = Handle<JSObject>::cast(type()->AsConstant()->Value());
   }
   Handle<JSObject> prototype = Handle<JSObject>::null();
   Handle<Map> current_map = receiver_map;
   Handle<Map> holder_map(holder->map());
   // Traverse the prototype chain and check the maps in the prototype chain for
   // fast and global objects or do negative lookup for normal objects.
   while (!current_map.is_identical_to(holder_map)) {
     ++depth;
 
     // Only global objects and objects that do not require access
@@ skipping 94 matching lines @@
   if (!miss->is_unused()) {
     Label success;
     __ b(&success);
     GenerateRestoreName(masm(), miss, name);
     TailCallBuiltin(masm(), MissBuiltin(kind()));
     __ bind(&success);
   }
 }
 
 
-Register NamedLoadHandlerCompiler::CallbackFrontend(Handle<HeapType> type,
-                                                    Register object_reg,
+Register NamedLoadHandlerCompiler::CallbackFrontend(Register object_reg,
                                                     Handle<JSObject> holder,
                                                     Handle<Name> name,
                                                     Handle<Object> callback) {
   Label miss;
 
-  Register reg = FrontendHeader(type, object_reg, holder, name, &miss);
+  Register reg = FrontendHeader(object_reg, holder, name, &miss);
 
   if (!holder->HasFastProperties() && !holder->IsJSGlobalObject()) {
     ASSERT(!reg.is(scratch2()));
     ASSERT(!reg.is(scratch3()));
     ASSERT(!reg.is(scratch4()));
 
     // Load the properties dictionary.
     Register dictionary = scratch4();
     __ ldr(dictionary, FieldMemOperand(reg, JSObject::kPropertiesOffset));
 
@@ skipping 80 matching lines @@
   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::GenerateLoadInterceptor(
-    Register holder_reg, Handle<Object> object,
-    Handle<JSObject> interceptor_holder, LookupResult* lookup,
-    Handle<Name> name) {
+    Register holder_reg, Handle<JSObject> interceptor_holder,
+    LookupResult* lookup, Handle<Name> name) {
   ASSERT(interceptor_holder->HasNamedInterceptor());
   ASSERT(!interceptor_holder->GetNamedInterceptor()->getter()->IsUndefined());
 
   // So far the most popular follow ups for interceptor loads are FIELD
   // and CALLBACKS, so inline only them, other cases may be added
   // later.
   bool compile_followup_inline = false;
   if (lookup->IsFound() && lookup->IsCacheable()) {
     if (lookup->IsField()) {
       compile_followup_inline = true;
     } else if (lookup->type() == CALLBACKS &&
                lookup->GetCallbackObject()->IsExecutableAccessorInfo()) {
       ExecutableAccessorInfo* callback =
           ExecutableAccessorInfo::cast(lookup->GetCallbackObject());
-      compile_followup_inline = callback->getter() != NULL &&
-          callback->IsCompatibleReceiver(*object);
+      compile_followup_inline =
+          callback->getter() != NULL &&
+          (!callback->HasExpectedReceiverType() ||
+           callback->IsCompatibleReceiver(*IC::TypeToMap(*type(), isolate())));
     }
   }
 
   if (compile_followup_inline) {
     // 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.
     ASSERT(holder_reg.is(receiver()) || holder_reg.is(scratch1()));
 
     // Preserve the receiver register explicitly whenever it is different from
@@ skipping 50 matching lines @@
                           isolate());
     __ TailCallExternalReference(
         ref, NamedLoadHandlerCompiler::kInterceptorArgsLength, 1);
   }
 }
 
 
 Handle<Code> NamedStoreHandlerCompiler::CompileStoreCallback(
     Handle<JSObject> object, Handle<JSObject> holder, Handle<Name> name,
     Handle<ExecutableAccessorInfo> callback) {
-  Register holder_reg =
-      Frontend(IC::CurrentTypeOf(object, isolate()), receiver(), holder, name);
+  Register holder_reg = Frontend(receiver(), holder, name);
 
   // Stub never generated for non-global objects that require access checks.
   ASSERT(holder->IsJSGlobalProxy() || !holder->IsAccessCheckNeeded());
 
   __ push(receiver());  // receiver
   __ push(holder_reg);
   __ mov(ip, Operand(callback));  // callback info
   __ push(ip);
   __ mov(ip, Operand(name));
   __ Push(ip, value());
@@ skipping 64 matching lines @@
   ExternalReference store_ic_property = ExternalReference(
       IC_Utility(IC::kStorePropertyWithInterceptor), isolate());
   __ TailCallExternalReference(store_ic_property, 3, 1);
 
   // Return the generated code.
   return GetCode(kind(), Code::FAST, name);
 }
 
 
 Handle<Code> NamedLoadHandlerCompiler::CompileLoadNonexistent(
-    Handle<HeapType> type, Handle<JSObject> last, Handle<Name> name) {
-  NonexistentFrontend(type, last, name);
+    Handle<JSObject> last, Handle<Name> name) {
+  NonexistentFrontend(last, name);
 
   // Return undefined if maps of the full prototype chain are still the
   // same and no global property with this name contains a value.
   __ LoadRoot(r0, Heap::kUndefinedValueRootIndex);
   __ Ret();
 
   // Return the generated code.
   return GetCode(kind(), Code::FAST, name);
 }
 
@@ skipping 67 matching lines @@
   }
   __ Ret();
 }
 
 
 #undef __
 #define __ ACCESS_MASM(masm())
 
 
 Handle<Code> NamedLoadHandlerCompiler::CompileLoadGlobal(
-    Handle<HeapType> type, Handle<GlobalObject> global,
-    Handle<PropertyCell> cell, Handle<Name> name, bool is_dont_delete) {
+    Handle<GlobalObject> global, Handle<PropertyCell> cell, Handle<Name> name,
+    bool is_dont_delete) {
   Label miss;
-  FrontendHeader(type, receiver(), global, name, &miss);
+  FrontendHeader(receiver(), global, name, &miss);
 
   // Get the value from the cell.
-  __ mov(r3, Operand(cell));
-  __ ldr(r4, FieldMemOperand(r3, Cell::kValueOffset));
+  Register result = StoreIC::ValueRegister();
+  __ mov(result, Operand(cell));
+  __ ldr(result, FieldMemOperand(result, Cell::kValueOffset));
 
   // Check for deleted property if property can actually be deleted.
   if (!is_dont_delete) {
     __ LoadRoot(ip, Heap::kTheHoleValueRootIndex);
-    __ cmp(r4, ip);
+    __ cmp(result, ip);
     __ b(eq, &miss);
   }
 
   Counters* counters = isolate()->counters();
   __ IncrementCounter(counters->named_load_global_stub(), 1, r1, r3);
-  __ mov(r0, r4);
   __ Ret();
 
   FrontendFooter(name, &miss);
 
   // Return the generated code.
   return GetCode(kind(), Code::NORMAL, name);
 }
 
 
 Handle<Code> PropertyICCompiler::CompilePolymorphic(TypeHandleList* types,
@@ skipping 119 matching lines @@
 
   TailCallBuiltin(masm, Builtins::kKeyedLoadIC_Miss);
 }
 
 
 #undef __
 
 } }  // namespace v8::internal
 
 #endif  // V8_TARGET_ARCH_ARM