зеркало из https://github.com/mozilla/gecko-dev.git
83 строки
2.9 KiB
C++
83 строки
2.9 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 1.1 (the
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* "License"); you may not use this file except in compliance with the License. You may obtain
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* a copy of the License at 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, WITHOUT
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* WARRANTY OF ANY KIND, either express or implied. See the License for the specific
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* language governing rights and limitations under the 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 Adobe System Incorporated. Portions created
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* by the Initial Developer are Copyright (C)[ 2004-2006 ] Adobe Systems Incorporated. All Rights
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* Reserved.
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*
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* Contributor(s): Adobe AS3 Team
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*
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* Alternatively, the contents of this file may be used under the terms of either the GNU
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* General Public License Version 2 or later (the "GPL"), or the GNU Lesser General Public
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* License Version 2.1 or later (the "LGPL"), in which case the provisions of the GPL or the
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* LGPL are applicable instead of those above. If you wish to allow use of your version of this
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* file only under the terms of either the GPL or the LGPL, and not to allow others to use your
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* version of this file under the terms of the MPL, indicate your decision by deleting provisions
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* above and replace them with the notice and other provisions required by the GPL or the
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* LGPL. If you do not delete the provisions above, a recipient may use your version of this file
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* under 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_CodeContext__
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#define __avmplus_CodeContext__
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namespace avmplus
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{
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const CodeContextAtom CONTEXT_NONE = 0; // No CodeContext present
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const CodeContextAtom CONTEXT_ENV = 0; // MethodEnv* pointer
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const CodeContextAtom CONTEXT_OBJECT = 1; // CodeContext* object
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// CodeContext is used to track which security context we are in.
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// When an AS3 method is called, the AS3 method will set core->codeContext to its code context.
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class CodeContext : public MMgc::GCFinalizedObject
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{
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public:
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#ifdef DEBUGGER
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virtual Toplevel *toplevel() const = 0;
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#endif
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};
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class EnterCodeContext
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{
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public:
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EnterCodeContext(AvmCore * _core, MethodEnv *env)
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{
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initialize(_core, (CodeContextAtom)env | CONTEXT_ENV);
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}
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EnterCodeContext(AvmCore * _core, CodeContext *codeContext)
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{
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initialize(_core, (CodeContextAtom)codeContext | CONTEXT_OBJECT);
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}
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~EnterCodeContext()
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{
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finish();
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}
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void finish()
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{
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core->codeContextAtom = savedCodeContextAtom;
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}
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private:
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void initialize(AvmCore * _core, CodeContextAtom atom)
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{
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this->core = _core;
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savedCodeContextAtom = _core->codeContextAtom;
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_core->codeContextAtom = atom;
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}
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CodeContextAtom savedCodeContextAtom;
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AvmCore *core;
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};
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}
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#endif /* __avmplus_CodeContext__ */
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