author David Anderson <>
Tue, 29 Nov 2011 16:44:03 -0800
changeset 105364 a64147b4cccbdecd64ad218625df24981f5e86c5
parent 105328 7c70058ad7b7503b674d110cd91209605fa80bfe
parent 80778 573c4744a0dda6458b685fe3ab4b1a77b7037abc
child 106160 e3b632e26dc04c0cf0226c8b2681a0d3243464ea
permissions -rw-r--r--
Merge from mozilla-central.

/* -*- 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
 * 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 Mozilla Communicator client code.
 * The Initial Developer of the Original Code is
 * Netscape Communications Corporation.
 * Portions created by the Initial Developer are Copyright (C) 1998
 * the Initial Developer. All Rights Reserved.
 * Contributor(s):
 *   David Hyatt <> (Original Author)
 * Alternatively, the contents of this file may be used under the terms of
 * either of 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 ***** */

#ifndef nsXBLProtoImplMethod_h__
#define nsXBLProtoImplMethod_h__

#include "nsIAtom.h"
#include "nsString.h"
#include "jsapi.h"
#include "nsIContent.h"
#include "nsString.h"
#include "nsXBLProtoImplMember.h"
#include "nsXBLSerialize.h"

struct nsXBLParameter {
  nsXBLParameter* mNext;
  char* mName;

  nsXBLParameter(const nsAString& aName) {
    mName = ToNewCString(aName);
    mNext = nsnull;

  ~nsXBLParameter() {
    NS_CONTENT_DELETE_LIST_MEMBER(nsXBLParameter, this, mNext);

struct nsXBLUncompiledMethod {
  nsXBLParameter* mParameters;
  nsXBLParameter* mLastParameter;
  nsXBLTextWithLineNumber mBodyText;

  nsXBLUncompiledMethod() :

  ~nsXBLUncompiledMethod() {
    delete mParameters;

  PRInt32 GetParameterCount() {
    PRInt32 result = 0;
    for (nsXBLParameter* curr = mParameters; curr; curr=curr->mNext)
    return result;

  void AppendBodyText(const nsAString& aText) {

  void AddParameter(const nsAString& aText) {
    nsXBLParameter* param = new nsXBLParameter(aText);
    if (!param)
    if (!mParameters)
      mParameters = param;
      mLastParameter->mNext = param;
    mLastParameter = param;

  void SetLineNumber(PRUint32 aLineNumber) {

class nsXBLProtoImplMethod: public nsXBLProtoImplMember
  nsXBLProtoImplMethod(const PRUnichar* aName);
  virtual ~nsXBLProtoImplMethod();

  void AppendBodyText(const nsAString& aBody);
  void AddParameter(const nsAString& aName);

  void SetLineNumber(PRUint32 aLineNumber);
  virtual nsresult InstallMember(nsIScriptContext* aContext,
                                 nsIContent* aBoundElement, 
                                 void* aScriptObject,
                                 void* aTargetClassObject,
                                 const nsCString& aClassStr);
  virtual nsresult CompileMember(nsIScriptContext* aContext,
                                 const nsCString& aClassStr,
                                 JSObject* aClassObject);

  virtual void Trace(TraceCallback aCallback, void *aClosure) const;

  nsresult Read(nsIScriptContext* aContext, nsIObjectInputStream* aStream);
  virtual nsresult Write(nsIScriptContext* aContext, nsIObjectOutputStream* aStream);

  bool IsCompiled() const
    return !(mUncompiledMethod & BIT_UNCOMPILED);
  void SetUncompiledMethod(nsXBLUncompiledMethod* aUncompiledMethod)
    mUncompiledMethod = PRUptrdiff(aUncompiledMethod) | BIT_UNCOMPILED;
  nsXBLUncompiledMethod* GetUncompiledMethod() const
    PRUptrdiff unmasked = mUncompiledMethod & ~BIT_UNCOMPILED;
    return reinterpret_cast<nsXBLUncompiledMethod*>(unmasked);

  enum { BIT_UNCOMPILED = 1 << 0 };

  union {
    PRUptrdiff mUncompiledMethod; // An object that represents the method before being compiled.
    JSObject* mJSMethodObject;    // The JS object for the method (after compilation)

#ifdef DEBUG
  bool mIsCompiled;

class nsXBLProtoImplAnonymousMethod : public nsXBLProtoImplMethod {
  nsXBLProtoImplAnonymousMethod() :
  nsresult Execute(nsIContent* aBoundElement);

  // Override InstallMember; these methods never get installed as members on
  // binding instantiations (though they may hang out in mMembers on the
  // prototype implementation).
  virtual nsresult InstallMember(nsIScriptContext* aContext,
                                 nsIContent* aBoundElement, 
                                 void* aScriptObject,
                                 void* aTargetClassObject,
                                 const nsCString& aClassStr) {
    return NS_OK;

  using nsXBLProtoImplMethod::Write;
  nsresult Write(nsIScriptContext* aContext,
                 nsIObjectOutputStream* aStream,
                 XBLBindingSerializeDetails aType);

#endif // nsXBLProtoImplMethod_h__