Changeset 96831 in webkit for trunk/Source/JavaScriptCore/runtime/JSObject.cpp

Timestamp:

Oct 6, 2011, 10:42:50 AM (14 years ago)

Author:

[email protected]

Message:

JSC objects need to know their own cell size at runtime.
​https://bugs.webkit.org/show_bug.cgi?id=69390

Reviewed by Geoffrey Garen.

Added the cellSize field to ClassInfo and the static calculation of
size of each class to the CREATE_METHOD_TABLE macro, which will be
renamed in a followup patch to make its name match its broader use.

Also added a few ClassInfo structs so that each object that is allocated has its
correct size.

• JavaScriptCore.exp:
• runtime/ClassInfo.h:

Changed JSByteArray s_defaultInfo to s_info so that the template will get the
correct ClassInfo struct from it when it's allocated.

• runtime/JSByteArray.cpp:
• runtime/JSByteArray.h:
• runtime/JSCell.h:

(JSC::allocateCell):

• runtime/JSNotAnObject.cpp:
• runtime/JSNotAnObject.h:
• runtime/JSObject.cpp:
• runtime/JSObject.h:

(JSC::JSCell::cellSize):

• runtime/JSStaticScopeObject.cpp:
• runtime/JSStaticScopeObject.h:
• runtime/StrictEvalActivation.cpp:
• runtime/StrictEvalActivation.h:

File:

• trunk/Source/JavaScriptCore/runtime/JSObject.cpp (modified) (1 diff)

trunk/Source/JavaScriptCore/runtime/JSObject.cpp

@@ -49 +49 @@
 
 const ClassInfo JSObject::s_info = { "Object", 0, 0, 0, CREATE_METHOD_TABLE(JSObject) };
+
+const ClassInfo JSFinalObject::s_info = { "Object", &Base::s_info, 0, 0, CREATE_METHOD_TABLE(JSFinalObject) };
 
 static inline void getClassPropertyNames(ExecState* exec, const ClassInfo* classInfo, PropertyNameArray& propertyNames, EnumerationMode mode)