113 lines
3.5 KiB
C++
113 lines
3.5 KiB
C++
/* ***** BEGIN LICENSE BLOCK *****
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* Version: MPL 1.1/GPL 2.0/LGPL 2.1
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*
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* The contents of this file are subject to the Mozilla Public License Version
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* 1.1 (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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* http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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* for the specific language governing rights and limitations under the
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* License.
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*
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* The Original Code is [Open Source Virtual Machine.].
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*
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* The Initial Developer of the Original Code is
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* Adobe System Incorporated.
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* Portions created by the Initial Developer are Copyright (C) 2004-2006
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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* Adobe AS3 Team
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*
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* Alternatively, the contents of this file may be used under the terms of
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* either the GNU General Public License Version 2 or later (the "GPL"), or
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* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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* in which case the provisions of the GPL or the LGPL are applicable instead
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* of those above. If you wish to allow use of your version of this file only
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* under the terms of either the GPL or the LGPL, and not to allow others to
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* use your version of this file under the terms of the MPL, indicate your
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* decision by deleting the provisions above and replace them with the notice
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* and other provisions required by the GPL or the LGPL. If you do not delete
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* the provisions above, a recipient may use your version of this file under
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* the terms of any one of the MPL, the GPL or the LGPL.
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*
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* ***** END LICENSE BLOCK ***** */
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#ifndef __avmplus_MethodClosure__
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#define __avmplus_MethodClosure__
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namespace avmplus
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{
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class MethodClosureClass : public ClassClosure
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{
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public:
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DECLARE_NATIVE_MAP(MethodClosureClass)
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MethodClosureClass(VTable* cvtable);
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// Function called as constructor ... not supported from user code
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// this = argv[0] (ignored)
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// arg1 = argv[1]
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// argN = argv[argc]
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Atom construct(int /*argc*/, Atom* /*argv*/)
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{
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AvmAssert(false);
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return nullObjectAtom;
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}
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Atom call(int argc, Atom* argv)
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{
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return construct(argc,argv);
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}
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MethodClosure* create(MethodEnv* env, Atom savedThis);
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};
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/**
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* The MethodClosure class is used to represent method
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* closures; that is, a function which is a method of
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* a class.
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*
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* MethodClosure is how AVM+ supports the "method extraction"
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* behavior of ECMAScript Edition 4. When a reference to
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* a method of a class is retrieved, a MethodClosure is
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* created. The MethodClosure also remembers the object
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* instance that the method was extracted from. When the
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* MethodClosure is invoked, the method is invoked with
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* "this" pointing to the remembered instance.
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*/
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class MethodClosure : public ScriptObject
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{
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friend class MethodClosureClass;
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MethodClosure(VTable* vtable, ScriptObject* prototype, MethodEnv* env, Atom savedThis);
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public:
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DWB(MethodEnv*) env;
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ATOM_WB savedThis;
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// argc is args only, argv[0] = receiver
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Atom call(int argc, Atom* argv);
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// argc is args only, argv[0] = receiver(ignored)
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Atom construct(int argc, Atom* argv);
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int get_length() const;
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bool isMethodClosure() { return true; }
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#ifdef AVMPLUS_VERBOSE
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public:
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Stringp format(AvmCore* core) const;
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#endif
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#ifdef DEBUGGER
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MethodEnv *getCallMethodEnv() { return env; }
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#endif
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};
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}
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#endif /* __avmplus_MethodClosure__ */
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