[strong] cache strong object literal maps

src/contexts.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_CONTEXTS_H_
 #define V8_CONTEXTS_H_
 
 #include "src/heap/heap.h"
 #include "src/objects.h"
 
@@ skipping 64 matching lines @@
 
 #define NATIVE_CONTEXT_FIELDS(V)                                               \
   V(GLOBAL_PROXY_INDEX, JSObject, global_proxy_object)                         \
   V(SECURITY_TOKEN_INDEX, Object, security_token)                              \
   V(BOOLEAN_FUNCTION_INDEX, JSFunction, boolean_function)                      \
   V(NUMBER_FUNCTION_INDEX, JSFunction, number_function)                        \
   V(STRING_FUNCTION_INDEX, JSFunction, string_function)                        \
   V(STRING_FUNCTION_PROTOTYPE_MAP_INDEX, Map, string_function_prototype_map)   \
   V(SYMBOL_FUNCTION_INDEX, JSFunction, symbol_function)                        \
   V(OBJECT_FUNCTION_INDEX, JSFunction, object_function)                        \
+  V(JS_OBJECT_STRONG_MAP_INDEX, Map, js_object_strong_map)                     \
   V(INTERNAL_ARRAY_FUNCTION_INDEX, JSFunction, internal_array_function)        \
   V(ARRAY_FUNCTION_INDEX, JSFunction, array_function)                          \
   V(JS_ARRAY_MAPS_INDEX, Object, js_array_maps)                                \
   V(JS_ARRAY_STRONG_MAPS_INDEX, Object, js_array_strong_maps)                  \
   V(DATE_FUNCTION_INDEX, JSFunction, date_function)                            \
   V(JSON_OBJECT_INDEX, JSObject, json_object)                                  \
   V(REGEXP_FUNCTION_INDEX, JSFunction, regexp_function)                        \
   V(INITIAL_OBJECT_PROTOTYPE_INDEX, JSObject, initial_object_prototype)        \
   V(INITIAL_ARRAY_PROTOTYPE_INDEX, JSObject, initial_array_prototype)          \
   V(CREATE_DATE_FUN_INDEX, JSFunction, create_date_fun)                        \
@@ skipping 51 matching lines @@
   V(JSFUNCTION_RESULT_CACHES_INDEX, FixedArray, jsfunction_result_caches)      \
   V(NORMALIZED_MAP_CACHE_INDEX, Object, normalized_map_cache)                  \
   V(RUNTIME_CONTEXT_INDEX, Context, runtime_context)                           \
   V(CALL_AS_FUNCTION_DELEGATE_INDEX, JSFunction, call_as_function_delegate)    \
   V(CALL_AS_CONSTRUCTOR_DELEGATE_INDEX, JSFunction,                            \
     call_as_constructor_delegate)                                              \
   V(SCRIPT_FUNCTION_INDEX, JSFunction, script_function)                        \
   V(OPAQUE_REFERENCE_FUNCTION_INDEX, JSFunction, opaque_reference_function)    \
   V(CONTEXT_EXTENSION_FUNCTION_INDEX, JSFunction, context_extension_function)  \
   V(MAP_CACHE_INDEX, Object, map_cache)                                        \
+  V(STRONG_MAP_CACHE_INDEX, Object, strong_map_cache)                          \
   V(EMBEDDER_DATA_INDEX, FixedArray, embedder_data)                            \
   V(ALLOW_CODE_GEN_FROM_STRINGS_INDEX, Object, allow_code_gen_from_strings)    \
   V(ERROR_MESSAGE_FOR_CODE_GEN_FROM_STRINGS_INDEX, Object,                     \
     error_message_for_code_gen_from_strings)                                   \
   V(PROMISE_STATUS_INDEX, Symbol, promise_status)                              \
   V(PROMISE_VALUE_INDEX, Symbol, promise_value)                                \
   V(PROMISE_CREATE_INDEX, JSFunction, promise_create)                          \
   V(PROMISE_RESOLVE_INDEX, JSFunction, promise_resolve)                        \
   V(PROMISE_REJECT_INDEX, JSFunction, promise_reject)                          \
   V(PROMISE_CHAIN_INDEX, JSFunction, promise_chain)                            \
@@ skipping 167 matching lines @@
     STRONG_CONSTRUCTOR_MAP_INDEX,
     BOUND_FUNCTION_MAP_INDEX,
     INITIAL_OBJECT_PROTOTYPE_INDEX,
     INITIAL_ARRAY_PROTOTYPE_INDEX,
     BOOLEAN_FUNCTION_INDEX,
     NUMBER_FUNCTION_INDEX,
     STRING_FUNCTION_INDEX,
     STRING_FUNCTION_PROTOTYPE_MAP_INDEX,
     SYMBOL_FUNCTION_INDEX,
     OBJECT_FUNCTION_INDEX,
+    JS_OBJECT_STRONG_MAP_INDEX,
     INTERNAL_ARRAY_FUNCTION_INDEX,
     ARRAY_FUNCTION_INDEX,
     JS_ARRAY_MAPS_INDEX,
     JS_ARRAY_STRONG_MAPS_INDEX,
     DATE_FUNCTION_INDEX,
     JSON_OBJECT_INDEX,
     REGEXP_FUNCTION_INDEX,
     CREATE_DATE_FUN_INDEX,
     TO_NUMBER_FUN_INDEX,
     TO_STRING_FUN_INDEX,
@@ skipping 67 matching lines @@
     SLOPPY_GENERATOR_FUNCTION_MAP_INDEX,
     STRICT_GENERATOR_FUNCTION_MAP_INDEX,
     STRONG_GENERATOR_FUNCTION_MAP_INDEX,
     GENERATOR_OBJECT_PROTOTYPE_MAP_INDEX,
     ITERATOR_RESULT_MAP_INDEX,
     MAP_ITERATOR_MAP_INDEX,
     SET_ITERATOR_MAP_INDEX,
     ARRAY_VALUES_ITERATOR_INDEX,
     SCRIPT_CONTEXT_TABLE_INDEX,
     MAP_CACHE_INDEX,
+    STRONG_MAP_CACHE_INDEX,
     TO_LENGTH_FUN_INDEX,
     NATIVES_UTILS_OBJECT_INDEX,
     EXTRAS_EXPORTS_OBJECT_INDEX,
 
     // Properties from here are treated as weak references by the full GC.
     // Scavenge treats them as strong references.
     OPTIMIZED_FUNCTIONS_LIST,  // Weak.
     OPTIMIZED_CODE_LIST,       // Weak.
     DEOPTIMIZED_CODE_LIST,     // Weak.
     NEXT_CONTEXT_LINK,         // Weak.
@@ skipping 190 matching lines @@
   static bool IsBootstrappingOrGlobalObject(Isolate* isolate, Object* object);
 #endif
 
   STATIC_ASSERT(kHeaderSize == Internals::kContextHeaderSize);
   STATIC_ASSERT(EMBEDDER_DATA_INDEX == Internals::kContextEmbedderDataIndex);
 };
 
 } }  // namespace v8::internal
 
 #endif  // V8_CONTEXTS_H_