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171 lines (150 loc) · 5.15 KB
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/*
* Copyright (C) 2006 Apple Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef APICast_h
#define APICast_h
#include "JSAPIValueWrapper.h"
#include "JSCJSValue.h"
#include "JSCJSValueInlines.h"
#include "JSGlobalObject.h"
namespace JSC {
class ExecState;
class PropertyNameArray;
class VM;
class JSObject;
class JSValue;
}
typedef const struct OpaqueJSContextGroup* JSContextGroupRef;
typedef const struct OpaqueJSContext* JSContextRef;
typedef struct OpaqueJSContext* JSGlobalContextRef;
typedef struct OpaqueJSPropertyNameAccumulator* JSPropertyNameAccumulatorRef;
typedef const struct OpaqueJSValue* JSValueRef;
typedef struct OpaqueJSValue* JSObjectRef;
/* Opaque typing convenience methods */
inline JSC::ExecState* toJS(JSContextRef c)
{
ASSERT(c);
return reinterpret_cast<JSC::ExecState*>(const_cast<OpaqueJSContext*>(c));
}
inline JSC::ExecState* toJS(JSGlobalContextRef c)
{
ASSERT(c);
return reinterpret_cast<JSC::ExecState*>(c);
}
inline JSC::JSValue toJS(JSC::ExecState* exec, JSValueRef v)
{
ASSERT_UNUSED(exec, exec);
#if USE(JSVALUE32_64)
JSC::JSCell* jsCell = reinterpret_cast<JSC::JSCell*>(const_cast<OpaqueJSValue*>(v));
if (!jsCell)
return JSC::jsNull();
JSC::JSValue result;
if (jsCell->isAPIValueWrapper())
result = JSC::jsCast<JSC::JSAPIValueWrapper*>(jsCell)->value();
else
result = jsCell;
#else
JSC::JSValue result = JSC::JSValue::decode(reinterpret_cast<JSC::EncodedJSValue>(const_cast<OpaqueJSValue*>(v)));
#endif
if (!result)
return JSC::jsNull();
if (result.isCell())
RELEASE_ASSERT(result.asCell()->methodTable());
return result;
}
inline JSC::JSValue toJSForGC(JSC::ExecState* exec, JSValueRef v)
{
ASSERT_UNUSED(exec, exec);
#if USE(JSVALUE32_64)
JSC::JSCell* jsCell = reinterpret_cast<JSC::JSCell*>(const_cast<OpaqueJSValue*>(v));
if (!jsCell)
return JSC::JSValue();
JSC::JSValue result = jsCell;
#else
JSC::JSValue result = JSC::JSValue::decode(reinterpret_cast<JSC::EncodedJSValue>(const_cast<OpaqueJSValue*>(v)));
#endif
if (result && result.isCell())
RELEASE_ASSERT(result.asCell()->methodTable());
return result;
}
// Used in JSObjectGetPrivate as that may be called during finalization
inline JSC::JSObject* uncheckedToJS(JSObjectRef o)
{
return reinterpret_cast<JSC::JSObject*>(o);
}
inline JSC::JSObject* toJS(JSObjectRef o)
{
JSC::JSObject* object = uncheckedToJS(o);
if (object)
RELEASE_ASSERT(object->methodTable());
return object;
}
inline JSC::PropertyNameArray* toJS(JSPropertyNameAccumulatorRef a)
{
return reinterpret_cast<JSC::PropertyNameArray*>(a);
}
inline JSC::VM* toJS(JSContextGroupRef g)
{
return reinterpret_cast<JSC::VM*>(const_cast<OpaqueJSContextGroup*>(g));
}
inline JSValueRef toRef(JSC::ExecState* exec, JSC::JSValue v)
{
ASSERT(exec->vm().currentThreadIsHoldingAPILock());
#if USE(JSVALUE32_64)
if (!v)
return 0;
if (!v.isCell())
return reinterpret_cast<JSValueRef>(JSC::jsAPIValueWrapper(exec, v).asCell());
return reinterpret_cast<JSValueRef>(v.asCell());
#else
UNUSED_PARAM(exec);
return reinterpret_cast<JSValueRef>(JSC::JSValue::encode(v));
#endif
}
inline JSObjectRef toRef(JSC::JSObject* o)
{
return reinterpret_cast<JSObjectRef>(o);
}
inline JSObjectRef toRef(const JSC::JSObject* o)
{
return reinterpret_cast<JSObjectRef>(const_cast<JSC::JSObject*>(o));
}
inline JSContextRef toRef(JSC::ExecState* e)
{
return reinterpret_cast<JSContextRef>(e);
}
inline JSGlobalContextRef toGlobalRef(JSC::ExecState* e)
{
ASSERT(e == e->lexicalGlobalObject()->globalExec());
return reinterpret_cast<JSGlobalContextRef>(e);
}
inline JSPropertyNameAccumulatorRef toRef(JSC::PropertyNameArray* l)
{
return reinterpret_cast<JSPropertyNameAccumulatorRef>(l);
}
inline JSContextGroupRef toRef(JSC::VM* g)
{
return reinterpret_cast<JSContextGroupRef>(g);
}
#endif // APICast_h