[runtime] [proxy] implementing [[Get]] trap.

src/objects.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_OBJECTS_H_
 #define V8_OBJECTS_H_
 
 #include <iosfwd>
 
 #include "src/allocation.h"
@@ skipping 9503 matching lines @@
   // ES6 9.5.6
   static bool DefineOwnProperty(Isolate* isolate, Handle<JSProxy> object,
                                 Handle<Object> key, PropertyDescriptor* desc,
                                 ShouldThrow should_throw);
 
   // ES6 9.5.7
   MUST_USE_RESULT static Maybe<bool> HasProperty(Isolate* isolate,
                                                  Handle<JSProxy> proxy,
                                                  Handle<Name> name);
 
+  // ES6 9.5.8
+  MUST_USE_RESULT static MaybeHandle<Object> GetProperty(
+      Isolate* isolate, Handle<JSProxy> proxy, Handle<Name> name,
+      Handle<Object> receiver, LanguageMode language_mode);
+
+  // ES6 9.5.9
+  MUST_USE_RESULT static Maybe<bool> SetProperty(Handle<JSProxy> proxy,
+                                                 Handle<Name> name,
+                                                 Handle<Object> value,
+                                                 Handle<Object> receiver,
+                                                 LanguageMode language_mode);
+
   // ES6 9.5.10 (when passed SLOPPY)
   MUST_USE_RESULT static Maybe<bool> DeletePropertyOrElement(
       Handle<JSProxy> proxy, Handle<Name> name, LanguageMode language_mode);
 
   // ES6 9.5.11
   static bool Enumerate(Isolate* isolate, Handle<JSReceiver> receiver,
                         Handle<JSProxy> proxy, KeyAccumulator* accumulator);
 
   // ES6 9.5.12
   static bool OwnPropertyKeys(Isolate* isolate, Handle<JSReceiver> receiver,
                               Handle<JSProxy> proxy, KeyFilter filter,
                               Enumerability enum_policy,
                               KeyAccumulator* accumulator);
 
   MUST_USE_RESULT static MaybeHandle<Object> GetPropertyWithHandler(
       Handle<JSProxy> proxy,
       Handle<Object> receiver,
       Handle<Name> name);
 
   MUST_USE_RESULT static Maybe<PropertyAttributes> GetPropertyAttributes(
       LookupIterator* it);
 
-  MUST_USE_RESULT static Maybe<bool> SetProperty(Handle<JSProxy> proxy,
-                                                 Handle<Name> name,
-                                                 Handle<Object> value,
-                                                 Handle<Object> receiver,
-                                                 LanguageMode language_mode);
-
   // Dispatched behavior.
   DECLARE_PRINTER(JSProxy)
   DECLARE_VERIFIER(JSProxy)
 
   // Layout description. We add padding so that a proxy has the same
   // size as a virgin JSObject. This is essential for becoming a JSObject
   // upon freeze.
   static const int kTargetOffset = HeapObject::kHeaderSize;
   static const int kHandlerOffset = kTargetOffset + kPointerSize;
   static const int kHashOffset = kHandlerOffset + kPointerSize;
@@ skipping 1142 matching lines @@
     }
     return value;
   }
 };
 
 
 }  // NOLINT, false-positive due to second-order macros.
 }  // NOLINT, false-positive due to second-order macros.
 
 #endif  // V8_OBJECTS_H_