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      1 /*
      2  * Copyright (C) 2005 Apple Computer, Inc.  All rights reserved.
      3  *
      4  * Redistribution and use in source and binary forms, with or without
      5  * modification, are permitted provided that the following conditions
      6  * are met:
      7  *
      8  * 1.  Redistributions of source code must retain the above copyright
      9  *     notice, this list of conditions and the following disclaimer.
     10  * 2.  Redistributions in binary form must reproduce the above copyright
     11  *     notice, this list of conditions and the following disclaimer in the
     12  *     documentation and/or other materials provided with the distribution.
     13  * 3.  Neither the name of Apple Computer, Inc. ("Apple") nor the names of
     14  *     its contributors may be used to endorse or promote products derived
     15  *     from this software without specific prior written permission.
     16  *
     17  * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
     18  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
     19  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
     20  * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
     21  * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
     22  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
     23  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
     24  * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     25  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
     26  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     27  */
     28 
     29 #ifndef JSUtils_h
     30 #define JSUtils_h
     31 
     32 #include "JavaScriptGlue.h"
     33 
     34 #include <JavaScriptCore/Heap.h>
     35 #include <JavaScriptCore/JSValue.h>
     36 #include <JavaScriptCore/Completion.h>
     37 #include <JavaScriptCore/Identifier.h>
     38 #include <JavaScriptCore/JSLock.h>
     39 #include <JavaScriptCore/JSObject.h>
     40 #include <JavaScriptCore/JSGlobalObject.h>
     41 #include <JavaScriptCore/Protect.h>
     42 #include <JavaScriptCore/UString.h>
     43 
     44 #include <wtf/RefPtr.h>
     45 
     46 using namespace JSC;
     47 
     48 class JSBase;
     49 class JSUserObject;
     50 class JSRun;
     51 class JSValueWrapper;
     52 class JSUserObjectImp;
     53 
     54 UString CFStringToUString(CFStringRef inCFString);
     55 CFStringRef UStringToCFString(const UString& inUString);
     56 Identifier CFStringToIdentifier(CFStringRef inCFString, ExecState*);
     57 CFStringRef IdentifierToCFString(const Identifier& inIdentifier);
     58 JSUserObject *KJSValueToJSObject(JSValue inValue, ExecState *exec);
     59 CFTypeRef KJSValueToCFType(JSValue inValue, ExecState *exec);
     60 JSValue JSObjectKJSValue(JSUserObject* ptr);
     61 CFTypeRef GetCFNull(void);
     62 
     63 inline CFTypeRef RetainCFType(CFTypeRef x) { if (x) x = CFRetain(x); return x; }
     64 inline void ReleaseCFType(CFTypeRef x) { if (x) CFRelease(x);  }
     65 
     66 ExecState* getThreadGlobalExecState();
     67 
     68 enum {
     69     kJSInvalidTypeID = 0,
     70     kJSObjectTypeID,
     71     kJSRunTypeID
     72 };
     73 
     74 enum {
     75     kJSUserObjectDataTypeUnknown,
     76     kJSUserObjectDataTypeJSValueWrapper,
     77     kJSUserObjectDataTypeCFType
     78 };
     79 
     80 class JSGlueAPIEntry {
     81 public:
     82     JSGlueAPIEntry();
     83     JSGlueAPIEntry(JSGlobalObject*); // For use when it's not safe for JSGlueAPIEntry() to call getThreadGlobalObject() -- for example, from a thread-specific data destructor.
     84     ~JSGlueAPIEntry();
     85 
     86 private:
     87     JSLock m_lock;
     88     IdentifierTable* m_storedIdentifierTable;
     89 };
     90 
     91 class JSGlueAPICallback {
     92 public:
     93     JSGlueAPICallback(ExecState*);
     94     ~JSGlueAPICallback();
     95 
     96 private:
     97     JSLock::DropAllLocks m_dropLocks;
     98 };
     99 
    100 #endif
    101