gecko/js/ctypes/Module.cpp

199 lines
5.8 KiB
C++

/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2; -*- */
/* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Mozilla Public License Version
* 1.1 (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
* http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the
* License.
*
* The Original Code is js-ctypes.
*
* The Initial Developer of the Original Code is
* The Mozilla Foundation <http://www.mozilla.org/>.
* Portions created by the Initial Developer are Copyright (C) 2009
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
* Mark Finkle <mark.finkle@gmail.com>, <mfinkle@mozilla.com>
* Dan Witte <dwitte@mozilla.com>
*
* Alternatively, the contents of this file may be used under the terms of
* either the GNU General Public License Version 2 or later (the "GPL"), or
* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the MPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the MPL, the GPL or the LGPL.
*
* ***** END LICENSE BLOCK ***** */
#include "Module.h"
#include "Library.h"
#include "nsIGenericFactory.h"
#include "nsMemory.h"
#define JSCTYPES_CONTRACTID \
"@mozilla.org/jsctypes;1"
#define JSCTYPES_CID \
{ 0xc797702, 0x1c60, 0x4051, { 0x9d, 0xd7, 0x4d, 0x74, 0x5, 0x60, 0x56, 0x42 } }
namespace mozilla {
namespace ctypes {
NS_GENERIC_FACTORY_CONSTRUCTOR(Module)
NS_IMPL_ISUPPORTS1(Module, nsIXPCScriptable)
Module::Module()
{
}
Module::~Module()
{
}
#define XPC_MAP_CLASSNAME Module
#define XPC_MAP_QUOTED_CLASSNAME "Module"
#define XPC_MAP_WANT_CALL
#define XPC_MAP_FLAGS nsIXPCScriptable::WANT_CALL
#include "xpc_map_end.h"
NS_IMETHODIMP
Module::Call(nsIXPConnectWrappedNative* wrapper,
JSContext* cx,
JSObject* obj,
PRUint32 argc,
jsval* argv,
jsval* vp,
PRBool* _retval)
{
JSObject* global = JS_GetGlobalObject(cx);
*_retval = Init(cx, global);
return NS_OK;
}
static JSClass sCABIClass = {
"CABI",
JSCLASS_HAS_RESERVED_SLOTS(1),
JS_PropertyStub, JS_PropertyStub, JS_PropertyStub, JS_PropertyStub,
JS_EnumerateStub,JS_ResolveStub, JS_ConvertStub, JS_FinalizeStub,
NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL
};
static JSClass sCTypeClass = {
"CType",
JSCLASS_HAS_RESERVED_SLOTS(1),
JS_PropertyStub, JS_PropertyStub, JS_PropertyStub, JS_PropertyStub,
JS_EnumerateStub,JS_ResolveStub, JS_ConvertStub, JS_FinalizeStub,
NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL
};
static JSFunctionSpec sModuleFunctions[] = {
JS_FN("open", Library::Open, 0, JSFUN_FAST_NATIVE | JSPROP_ENUMERATE | JSPROP_READONLY | JSPROP_PERMANENT),
JS_FS_END
};
ABICode
Module::GetABICode(JSContext* cx, jsval val)
{
// make sure we have an object representing a CABI class,
// and extract the enumerated class type from the reserved slot.
if (!JSVAL_IS_OBJECT(val))
return INVALID_ABI;
JSObject* obj = JSVAL_TO_OBJECT(val);
if (JS_GET_CLASS(cx, obj) != &sCABIClass)
return INVALID_ABI;
jsval result;
JS_GetReservedSlot(cx, obj, 0, &result);
return ABICode(JSVAL_TO_INT(result));
}
TypeCode
Module::GetTypeCode(JSContext* cx, jsval val)
{
// make sure we have an object representing a CType class,
// and extract the enumerated class type from the reserved slot.
if (!JSVAL_IS_OBJECT(val))
return INVALID_TYPE;
JSObject* obj = JSVAL_TO_OBJECT(val);
if (JS_GET_CLASS(cx, obj) != &sCTypeClass)
return INVALID_TYPE;
jsval result;
JS_GetReservedSlot(cx, obj, 0, &result);
return TypeCode(JSVAL_TO_INT(result));
}
static bool
DefineConstant(JSContext* cx, JSObject* parent, JSClass* clasp, const char* name, jsint code)
{
JSObject* obj = JS_DefineObject(cx, parent, name, clasp, NULL,
JSPROP_ENUMERATE | JSPROP_READONLY | JSPROP_PERMANENT);
if (!obj)
return false;
return JS_SetReservedSlot(cx, obj, 0, INT_TO_JSVAL(code));
}
bool
Module::Init(JSContext* cx, JSObject* aGlobal)
{
// attach ctypes property to global object
JSObject* ctypes = JS_NewObject(cx, NULL, NULL, NULL);
if (!ctypes)
return false;
if (!JS_DefineProperty(cx, aGlobal, "ctypes", OBJECT_TO_JSVAL(ctypes),
NULL, NULL, JSPROP_ENUMERATE | JSPROP_READONLY | JSPROP_PERMANENT))
return false;
// attach classes representing ABI and type constants
#define DEFINE_ABI(name) \
if (!DefineConstant(cx, ctypes, &sCABIClass, #name, ABI_##name)) \
return false;
#define DEFINE_TYPE(name) \
if (!DefineConstant(cx, ctypes, &sCTypeClass, #name, TYPE_##name)) \
return false;
#include "types.h"
#undef DEFINE_ABI
#undef DEFINE_TYPE
// attach API functions
if (!JS_DefineFunctions(cx, ctypes, sModuleFunctions))
return false;
return true;
}
}
}
static nsModuleComponentInfo components[] =
{
{
"jsctypes",
JSCTYPES_CID,
JSCTYPES_CONTRACTID,
mozilla::ctypes::ModuleConstructor,
}
};
NS_IMPL_NSGETMODULE(jsctypes, components)