The Tor Browser: js/jsd/jsd_obj.cpp@a63d609f5ebe (annotated)

js/jsd/jsd_obj.cpp@a63d609f5ebe (annotated)

js/jsd/jsd_obj.cpp

Thu, 15 Jan 2015 15:55:04 +0100

author: Michael Schloh von Bennewitz <michael@schloh.com>
date: Thu, 15 Jan 2015 15:55:04 +0100
branch: TOR_BUG_9701
changeset 9: a63d609f5ebe
permissions: -rw-r--r--

Back out 97036ab72558 which inappropriately compared turds to third parties.

 /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*-
  * vim: set ts=8 sts=4 et sw=4 tw=99:
  * This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 /*
  * JavaScript Debugging support - Object support
  */
 #include "jsd.h"
 /*
 * #define JSD_TRACE 1
 */
 #ifdef JSD_TRACE
 #define TRACEOBJ(jsdc, jsdobj, which) _traceObj(jsdc, jsdobj, which)
 static char *
 _describeObj(JSDContext* jsdc, JSDObject *jsdobj)
 {
     return
         JS_smprintf("%0x new'd in %s at line %d using ctor %s in %s at line %d",
                     (int)jsdobj,
                     JSD_GetObjectNewURL(jsdc, jsdobj),
                     JSD_GetObjectNewLineNumber(jsdc, jsdobj),
                     JSD_GetObjectConstructorName(jsdc, jsdobj),
                     JSD_GetObjectConstructorURL(jsdc, jsdobj),
                     JSD_GetObjectConstructorLineNumber(jsdc, jsdobj));
 }
 static void
 _traceObj(JSDContext* jsdc, JSDObject* jsdobj, int which)
 {
     char* description;
     if( !jsdobj )
         return;
     description = _describeObj(jsdc, jsdobj);
     printf("%s : %s\n",
            which == 0 ? "new  " :
            which == 1 ? "final" :
                         "ctor ",
            description);
     if(description)
         free(description);
 }
 #else
 #define TRACEOBJ(jsdc, jsdobj, which) ((void)0)
 #endif /* JSD_TRACE */
 #ifdef DEBUG
 void JSD_ASSERT_VALID_OBJECT(JSDObject* jsdobj)
 {
     MOZ_ASSERT(jsdobj);
     MOZ_ASSERT(!JS_CLIST_IS_EMPTY(&jsdobj->links));
     MOZ_ASSERT(jsdobj->obj);
 }
 #endif
 static void
 _destroyJSDObject(JSDContext* jsdc, JSDObject* jsdobj)
 {
     MOZ_ASSERT(JSD_OBJECTS_LOCKED(jsdc));
     JS_REMOVE_LINK(&jsdobj->links);
     JS_HashTableRemove(jsdc->objectsTable, jsdobj->obj);
     if(jsdobj->newURL)
         jsd_DropAtom(jsdc, jsdobj->newURL);
     if(jsdobj->ctorURL)
         jsd_DropAtom(jsdc, jsdobj->ctorURL);
     if(jsdobj->ctorName)
         jsd_DropAtom(jsdc, jsdobj->ctorName);
     free(jsdobj);
 }
 void
 jsd_Constructing(JSDContext* jsdc, JSContext *cx, JSObject *obj,
                  JSAbstractFramePtr frame)
 {
     JSDObject* jsdobj;
     JS::RootedScript script(cx);
     JSDScript* jsdscript;
     const char* ctorURL;
     JSString* ctorNameStr;
     const char* ctorName;
     JSD_LOCK_OBJECTS(jsdc);
     jsdobj = jsd_GetJSDObjectForJSObject(jsdc, obj);
     if( jsdobj && !jsdobj->ctorURL )
     {
         script = frame.script();
         if( script )
         {
             ctorURL = JS_GetScriptFilename(script);
             if( ctorURL )
                 jsdobj->ctorURL = jsd_AddAtom(jsdc, ctorURL);
             JSD_LOCK_SCRIPTS(jsdc);
             jsdscript = jsd_FindOrCreateJSDScript(jsdc, cx, script, frame);
             JSD_UNLOCK_SCRIPTS(jsdc);
             if( jsdscript && (ctorNameStr = jsd_GetScriptFunctionId(jsdc, jsdscript)) ) {
                 if( (ctorName = JS_EncodeString(cx, ctorNameStr)) ) {
                     jsdobj->ctorName = jsd_AddAtom(jsdc, ctorName);
                     JS_free(cx, (void *) ctorName);
                 }
             }
             jsdobj->ctorLineno = JS_GetScriptBaseLineNumber(cx, script);
         }
     }
     TRACEOBJ(jsdc, jsdobj, 3);
     JSD_UNLOCK_OBJECTS(jsdc);
 }
 static JSHashNumber
 _hash_root(const void *key)
 {
     return ((JSHashNumber)(ptrdiff_t) key) >> 2; /* help lame MSVC1.5 on Win16 */
 }
 bool
 jsd_InitObjectManager(JSDContext* jsdc)
 {
     JS_INIT_CLIST(&jsdc->objectsList);
     jsdc->objectsTable = JS_NewHashTable(256, _hash_root,
                                          JS_CompareValues, JS_CompareValues,
                                          nullptr, nullptr);
     return !!jsdc->objectsTable;
 }
 void
 jsd_DestroyObjectManager(JSDContext* jsdc)
 {
     jsd_DestroyObjects(jsdc);
     JSD_LOCK_OBJECTS(jsdc);
     JS_HashTableDestroy(jsdc->objectsTable);
     JSD_UNLOCK_OBJECTS(jsdc);
 }
 void
 jsd_DestroyObjects(JSDContext* jsdc)
 {
     JSD_LOCK_OBJECTS(jsdc);
     while( !JS_CLIST_IS_EMPTY(&jsdc->objectsList) )
         _destroyJSDObject(jsdc, (JSDObject*)JS_NEXT_LINK(&jsdc->objectsList));
     JSD_UNLOCK_OBJECTS(jsdc);
 }
 JSDObject*
 jsd_IterateObjects(JSDContext* jsdc, JSDObject** iterp)
 {
     JSDObject *jsdobj = *iterp;
     MOZ_ASSERT(JSD_OBJECTS_LOCKED(jsdc));
     if( !jsdobj )
         jsdobj = (JSDObject *)jsdc->objectsList.next;
     if( jsdobj == (JSDObject *)&jsdc->objectsList )
         return nullptr;
     *iterp = (JSDObject*) jsdobj->links.next;
     return jsdobj;
 }
 JSObject*
 jsd_GetWrappedObject(JSDContext* jsdc, JSDObject* jsdobj)
 {
     return jsdobj->obj;
 }
 const char*
 jsd_GetObjectNewURL(JSDContext* jsdc, JSDObject* jsdobj)
 {
     if( jsdobj->newURL )
         return JSD_ATOM_TO_STRING(jsdobj->newURL);
     return nullptr;
 }
 unsigned
 jsd_GetObjectNewLineNumber(JSDContext* jsdc, JSDObject* jsdobj)
 {
     return jsdobj->newLineno;
 }
 const char*
 jsd_GetObjectConstructorURL(JSDContext* jsdc, JSDObject* jsdobj)
 {
     if( jsdobj->ctorURL )
         return JSD_ATOM_TO_STRING(jsdobj->ctorURL);
     return nullptr;
 }
 unsigned
 jsd_GetObjectConstructorLineNumber(JSDContext* jsdc, JSDObject* jsdobj)
 {
     return jsdobj->ctorLineno;
 }
 const char*
 jsd_GetObjectConstructorName(JSDContext* jsdc, JSDObject* jsdobj)
 {
     if( jsdobj->ctorName )
         return JSD_ATOM_TO_STRING(jsdobj->ctorName);
     return nullptr;
 }
 JSDObject*
 jsd_GetJSDObjectForJSObject(JSDContext* jsdc, JSObject* jsobj)
 {
     JSDObject* jsdobj;
     JSD_LOCK_OBJECTS(jsdc);
     jsdobj = (JSDObject*) JS_HashTableLookup(jsdc->objectsTable, jsobj);
     JSD_UNLOCK_OBJECTS(jsdc);
     return jsdobj;
 }
 JSDObject*
 jsd_GetObjectForValue(JSDContext* jsdc, JSDValue* jsdval)
 {
     return jsd_GetJSDObjectForJSObject(jsdc, JSVAL_TO_OBJECT(jsdval->val));
 }
 JSDValue*
 jsd_GetValueForObject(JSDContext* jsdc, JSDObject* jsdobj)
 {
     return jsd_NewValue(jsdc, OBJECT_TO_JSVAL(jsdobj->obj));
 }

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js/jsd/jsd_obj.cpp@a63d609f5ebe (annotated)

js/jsd/jsd_obj.cpp