[strong] Implement strong mode restrictions on property access

src/code-stubs.h

 // 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.
 
 #ifndef V8_CODE_STUBS_H_
 #define V8_CODE_STUBS_H_
 
 #include "src/allocation.h"
 #include "src/assembler.h"
 #include "src/codegen.h"
@@ skipping 2096 matching lines @@
  private:
   StringCharCodeAtGenerator char_code_at_generator_;
   StringCharFromCodeGenerator char_from_code_generator_;
 
   DISALLOW_COPY_AND_ASSIGN(StringCharAtGenerator);
 };
 
 
 class LoadDictionaryElementStub : public HydrogenCodeStub {
  public:
-  explicit LoadDictionaryElementStub(Isolate* isolate)
-      : HydrogenCodeStub(isolate) {}
+  explicit LoadDictionaryElementStub(Isolate* isolate, const LoadICState& state)
+      : HydrogenCodeStub(isolate) {
+    minor_key_ = state.GetExtraICState();
+  }
 
   CallInterfaceDescriptor GetCallInterfaceDescriptor() override {
     return LoadWithVectorDescriptor(isolate());
   }
 
+  Strength strength() const { return LoadICState::GetStrength(MinorKey()); }
+
   DEFINE_HYDROGEN_CODE_STUB(LoadDictionaryElement, HydrogenCodeStub);
 };
 
 
 class KeyedLoadGenericStub : public HydrogenCodeStub {
  public:
-  explicit KeyedLoadGenericStub(Isolate* isolate) : HydrogenCodeStub(isolate) {}
+  explicit KeyedLoadGenericStub(Isolate* isolate, const LoadICState& state)
+      : HydrogenCodeStub(isolate) {
+    minor_key_ = state.GetExtraICState();
+  }
 
   Code::Kind GetCodeKind() const override { return Code::KEYED_LOAD_IC; }
   InlineCacheState GetICState() const override { return GENERIC; }
 
+  Strength strength() const { return LoadICState::GetStrength(MinorKey()); }
+
   DEFINE_CALL_INTERFACE_DESCRIPTOR(Load);
 
   DEFINE_HYDROGEN_CODE_STUB(KeyedLoadGeneric, HydrogenCodeStub);
 };
 
 
 class LoadICTrampolineStub : public PlatformCodeStub {
  public:
   LoadICTrampolineStub(Isolate* isolate, const LoadICState& state)
       : PlatformCodeStub(isolate) {
     minor_key_ = state.GetExtraICState();
   }
 
   Code::Kind GetCodeKind() const override { return Code::LOAD_IC; }
 
   InlineCacheState GetICState() const final { return DEFAULT; }
 
   ExtraICState GetExtraICState() const final {
     return static_cast<ExtraICState>(minor_key_);
   }
 
- private:
+ protected:
   LoadICState state() const {
     return LoadICState(static_cast<ExtraICState>(minor_key_));
   }
 
   DEFINE_CALL_INTERFACE_DESCRIPTOR(Load);
   DEFINE_PLATFORM_CODE_STUB(LoadICTrampoline, PlatformCodeStub);
 };
 
 
 class KeyedLoadICTrampolineStub : public LoadICTrampolineStub {
  public:
-  explicit KeyedLoadICTrampolineStub(Isolate* isolate)
-      : LoadICTrampolineStub(isolate, LoadICState(0)) {}
+  explicit KeyedLoadICTrampolineStub(Isolate* isolate, const LoadICState& state)
+      : LoadICTrampolineStub(isolate, state) {}
 
   Code::Kind GetCodeKind() const override { return Code::KEYED_LOAD_IC; }
 
   DEFINE_PLATFORM_CODE_STUB(KeyedLoadICTrampoline, LoadICTrampolineStub);
 };
 
 
 class VectorStoreICTrampolineStub : public PlatformCodeStub {
  public:
   VectorStoreICTrampolineStub(Isolate* isolate, const StoreICState& state)
@@ skipping 85 matching lines @@
   DEFINE_CALL_INTERFACE_DESCRIPTOR(LoadWithVector);
   DEFINE_PLATFORM_CODE_STUB(LoadIC, PlatformCodeStub);
 
  protected:
   void GenerateImpl(MacroAssembler* masm, bool in_frame);
 };
 
 
 class KeyedLoadICStub : public PlatformCodeStub {
  public:
-  explicit KeyedLoadICStub(Isolate* isolate) : PlatformCodeStub(isolate) {}
+  explicit KeyedLoadICStub(Isolate* isolate, const LoadICState& state)
+      : PlatformCodeStub(isolate) {
+    minor_key_ = state.GetExtraICState();
+  }
 
   void GenerateForTrampoline(MacroAssembler* masm);
 
   Code::Kind GetCodeKind() const override { return Code::KEYED_LOAD_IC; }
   InlineCacheState GetICState() const final { return DEFAULT; }
+  ExtraICState GetExtraICState() const final {
+    return static_cast<ExtraICState>(minor_key_);
+  }
 
   DEFINE_CALL_INTERFACE_DESCRIPTOR(LoadWithVector);
   DEFINE_PLATFORM_CODE_STUB(KeyedLoadIC, PlatformCodeStub);
 
  protected:
   void GenerateImpl(MacroAssembler* masm, bool in_frame);
 };
 
 
 class VectorStoreICStub : public PlatformCodeStub {
@@ skipping 23 matching lines @@
  public:
   VectorKeyedStoreICStub(Isolate* isolate, const StoreICState& state)
       : PlatformCodeStub(isolate) {
     minor_key_ = state.GetExtraICState();
   }
 
   void GenerateForTrampoline(MacroAssembler* masm);
 
   Code::Kind GetCodeKind() const final { return Code::KEYED_STORE_IC; }
   InlineCacheState GetICState() const final { return DEFAULT; }
+  virtual ExtraICState GetExtraICState() const final {
+    return static_cast<ExtraICState>(minor_key_);
+  }
 
   DEFINE_CALL_INTERFACE_DESCRIPTOR(VectorStoreIC);
   DEFINE_PLATFORM_CODE_STUB(VectorKeyedStoreIC, PlatformCodeStub);
 
  protected:
   void GenerateImpl(MacroAssembler* masm, bool in_frame);
 };
 
 
 class DoubleToIStub : public PlatformCodeStub {
@@ skipping 635 matching lines @@
 
 #undef DEFINE_CALL_INTERFACE_DESCRIPTOR
 #undef DEFINE_PLATFORM_CODE_STUB
 #undef DEFINE_HANDLER_CODE_STUB
 #undef DEFINE_HYDROGEN_CODE_STUB
 #undef DEFINE_CODE_STUB
 #undef DEFINE_CODE_STUB_BASE
 } }  // namespace v8::internal
 
 #endif  // V8_CODE_STUBS_H_