gecko/js/xpconnect/idl/xpccomponents.idl
Igor Bukanov 5220367ed1 Bug 737364 - part 2 - replace JSContext with JSRuntime in the GC-related API
This part replaces the JSContext *cx argument in most GC-related API
with JSRuntime *rt. When possible, the patch removes the code to obtain
a temporary cx just to run the GC.

The patch also removes JS_DestroyContextMaybeGC. That function is not
used in FF code base and its implementation is broken. It requires that
the context has an entered compartment when it is destroyed, which in
turns implies a missing leave compartment call.
2012-03-28 12:13:30 +02:00

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/* -*- Mode: IDL; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/* ***** 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 Mozilla Communicator client code, released
* March 31, 1998.
*
* 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):
* John Bandhauer <jband@netscape.com> (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 ***** */
#include "nsISupports.idl"
#include "xpcexception.idl"
#include "xpcjsid.idl"
#include "nsIComponentManager.idl"
%{C++
#include "jspubtd.h"
%}
interface xpcIJSWeakReference;
/**
* interface of Components.interfacesByID
* (interesting stuff only reflected into JavaScript)
*/
[scriptable, uuid(c99cffac-5aed-4267-ad2f-f4a4c9d4a081)]
interface nsIXPCComponents_InterfacesByID : nsISupports
{
};
/**
* interface of Components.interfaces
* (interesting stuff only reflected into JavaScript)
*/
[scriptable, uuid(b8c31bba-79db-4a1d-930d-4cdd68713f9e)]
interface nsIXPCComponents_Interfaces : nsISupports
{
};
/**
* interface of Components.classes
* (interesting stuff only reflected into JavaScript)
*/
[scriptable, uuid(978ff520-d26c-11d2-9842-006008962422)]
interface nsIXPCComponents_Classes : nsISupports
{
};
/**
* interface of Components.classesByID
* (interesting stuff only reflected into JavaScript)
*/
[scriptable, uuid(336a9590-4d19-11d3-9893-006008962422)]
interface nsIXPCComponents_ClassesByID : nsISupports
{
};
/**
* interface of Components.results
* (interesting stuff only reflected into JavaScript)
*/
[scriptable, uuid(2fc229a0-5860-11d3-9899-006008962422)]
interface nsIXPCComponents_Results : nsISupports
{
};
/**
* interface of Components.ID
* (interesting stuff only reflected into JavaScript)
*/
[scriptable, uuid(7994a6e0-e028-11d3-8f5d-0010a4e73d9a)]
interface nsIXPCComponents_ID : nsISupports
{
};
/**
* interface of Components.Exception
* (interesting stuff only reflected into JavaScript)
*/
[scriptable, uuid(5bf039c0-e028-11d3-8f5d-0010a4e73d9a)]
interface nsIXPCComponents_Exception : nsISupports
{
};
/**
* interface of Components.Constructor
* (interesting stuff only reflected into JavaScript)
*/
[scriptable, uuid(88655640-e028-11d3-8f5d-0010a4e73d9a)]
interface nsIXPCComponents_Constructor : nsISupports
{
};
/**
* interface of object returned by Components.Constructor
* (additional interesting stuff only reflected into JavaScript)
*/
[scriptable, uuid(c814ca20-e0dc-11d3-8f5f-0010a4e73d9a)]
interface nsIXPCConstructor : nsISupports
{
readonly attribute nsIJSCID classID;
readonly attribute nsIJSIID interfaceID;
readonly attribute string initializer;
};
/**
* interface of object returned by Components.utils.Sandbox.
*/
[scriptable, uuid(4f8ae0dc-d266-4a32-875b-6a9de71a8ce9)]
interface nsIXPCComponents_utils_Sandbox : nsISupports
{
};
/**
* interface for callback to be passed to Cu.schedulePreciseGC
*/
[scriptable, function, uuid(71000535-b0fd-44d1-8ce0-909760e3953c)]
interface ScheduledGCCallback : nsISupports
{
void callback();
};
/**
* interface of Components.utils
*/
[scriptable, uuid(9e43a260-5db2-11e1-b86c-0800200c9a66)]
interface nsIXPCComponents_Utils : nsISupports
{
/* reportError is designed to be called from JavaScript only.
*
* It will report a JS Error object to the JS console, and return. It
* is meant for use in exception handler blocks which want to "eat"
* an exception, but still want to report it to the console.
*
* It must be called with one param, usually an object which was caught by
* an exception handler. If it is not a JS error object, the parameter
* is converted to a string and reported as a new error.
*/
[implicit_jscontext] void reportError(in jsval error);
/* lookupMethod is designed to be called from JavaScript only.
*
* It returns a method looking only at the idl interfaces and
* ignores any overrides or resolvers that might be in place for
* a given scriptable wrapped native.
* It must be called with two params: an object and a method name.
* It returns a function object or throws an exception on error.
* This method exists only to solve mozilla browser problems
* when chrome attempts to lookup and call methods in content
* and *must* not get confused by method properties that have been
* replaced in the content JS code. This method is not recommended for
* any other use.
*/
[implicit_jscontext]
jsval lookupMethod(in jsval obj, in jsval name);
readonly attribute nsIXPCComponents_utils_Sandbox Sandbox;
/*
* evalInSandbox is designed to be called from JavaScript only.
*
* evalInSandbox evaluates the provided source string in the given sandbox.
* It returns the result of the evaluation to the caller.
*
* var s = new C.u.Sandbox("http://www.mozilla.org");
* var res = C.u.evalInSandbox("var five = 5; 2 + five", s);
* var outerFive = s.five;
* s.seven = res;
* var thirtyFive = C.u.evalInSandbox("five * seven", s);
*/
[implicit_jscontext,optional_argc]
jsval evalInSandbox(in AString source, in jsval sandbox,
[optional] in jsval version,
[optional] in jsval filename,
[optional] in long lineNo);
/*
* import is designed to be called from JavaScript only.
*
* Synchronously loads and evaluates the js file located at
* 'registryLocation' with a new, fully privileged global object.
*
* If 'targetObj' is specified and equal to null, returns the
* module's global object. Otherwise (if 'targetObj' is not
* specified, or 'targetObj' is != null) looks for a property
* 'EXPORTED_SYMBOLS' on the new global object. 'EXPORTED_SYMBOLS'
* is expected to be an array of strings identifying properties on
* the global object. These properties will be installed as
* properties on 'targetObj', or, if 'targetObj' is not specified,
* on the caller's global object. If 'EXPORTED_SYMBOLS' is not
* found, an error is thrown.
*
* @param resourceURI A resource:// URI string to load the module from.
* @param targetObj the object to install the exported properties on.
* If this parameter is a primitive value, this method throws
* an exception.
* @returns the module code's global object.
*
* The implementation maintains a hash of registryLocation->global obj.
* Subsequent invocations of importModule with 'registryLocation'
* pointing to the same file will not cause the module to be re-evaluated,
* but the symbols in EXPORTED_SYMBOLS will be exported into the
* specified target object and the global object returned as above.
*
* (This comment is duplicated from xpcIJSModuleLoader.)
*/
[implicit_jscontext,optional_argc]
jsval import(in AUTF8String aResourceURI, [optional] in jsval targetObj);
/*
* Unloads the JS module at 'registryLocation'. Existing references to the
* module will continue to work but any subsequent import of the module will
* reload it and give new reference. If the JS module hasn't yet been
* imported then this method will do nothing.
*
* @param resourceURI A resource:// URI string to unload the module from.
*/
void unload(in AUTF8String registryLocation);
/*
* To be called from JS only.
*
* Return a weak reference for the given JS object.
*/
[implicit_jscontext]
xpcIJSWeakReference getWeakReference(in jsval obj);
/*
* To be called from JS only.
*
* Force an immediate garbage collection cycle.
*/
void forceGC();
/*
* To be called from JS only.
*
* Force an immediate shrinking garbage collection cycle.
*/
void forceShrinkingGC();
/*
* Schedule a garbage collection cycle for a point in the future when no JS
* is running. Call the provided function once this has occurred.
*/
void schedulePreciseGC(in ScheduledGCCallback callback);
/*
* Schedule a shrinking garbage collection cycle for a point in the future
* when no JS is running. Call the provided function once this has occured.
*/
void schedulePreciseShrinkingGC(in ScheduledGCCallback callback);
/**
* Return the keys in a weak map. This operation is
* non-deterministic because it is affected by the scheduling of the
* garbage collector and the cycle collector.
*
* This should only be used to write tests of the interaction of
* the GC and CC with weak maps.
*
* @param aMap weak map or other JavaScript value
* @returns If aMap is a weak map object, return the keys of the weak
map as an array. Otherwise, return undefined.
*/
[implicit_jscontext]
jsval nondeterministicGetWeakMapKeys(in jsval aMap);
[implicit_jscontext]
jsval getJSTestingFunctions();
/*
* To be called from JS only.
*
* Returns the global object with which the given object is associated.
*
* @param obj The JavaScript object whose global is to be gotten.
* @return the corresponding global.
*/
[implicit_jscontext]
jsval getGlobalForObject(in jsval obj);
/*
* To be called from JS only.
*
* Returns an object created in |vobj|'s compartment.
*/
[implicit_jscontext]
jsval createObjectIn(in jsval vobj);
/*
* To be called from JS only.
*
* Ensures that all functions come from vobj's scope (and aren't cross
* compartment wrappers).
*/
[implicit_jscontext]
void makeObjectPropsNormal(in jsval vobj);
/*
* To be called from JS only.
*
* These are the set of JSContext options that privileged script
* is allowed to control for the purposes of testing. These
* options should be kept in sync with what's controllable in the
* jsshell and by setting prefs in nsJSEnvironment.
*
* NB: Assume that getting any of these attributes is relatively
* cheap, but setting any of them is relatively expensive.
*/
[implicit_jscontext]
attribute boolean strict;
[implicit_jscontext]
attribute boolean werror;
[implicit_jscontext]
attribute boolean atline;
[implicit_jscontext]
attribute boolean xml;
[implicit_jscontext]
attribute boolean relimit;
[implicit_jscontext]
attribute boolean methodjit;
[implicit_jscontext]
attribute boolean methodjit_always;
[implicit_jscontext]
void setGCZeal(in long zeal);
};
/**
* interface of JavaScript's 'Components' object
*/
[scriptable, uuid(4676e9cf-2c07-423b-b161-26bb9d8067d3)]
interface nsIXPCComponents : nsISupports
{
readonly attribute nsIXPCComponents_Interfaces interfaces;
readonly attribute nsIXPCComponents_InterfacesByID interfacesByID;
readonly attribute nsIXPCComponents_Classes classes;
readonly attribute nsIXPCComponents_ClassesByID classesByID;
readonly attribute nsIStackFrame stack;
readonly attribute nsIXPCComponents_Results results;
readonly attribute nsIComponentManager manager;
readonly attribute nsIXPCComponents_Utils utils;
readonly attribute nsIXPCComponents_ID ID;
readonly attribute nsIXPCComponents_Exception Exception;
readonly attribute nsIXPCComponents_Constructor Constructor;
boolean isSuccessCode(in nsresult result);
/* @deprecated Use Components.utils.lookupMethod instead.
* (But are you sure you really want this method any more?
* See http://developer-test.mozilla.org/en/docs/XPCNativeWrapper )
*/
[deprecated,implicit_jscontext]
jsval lookupMethod(in jsval obj, in jsval name);
/* @deprecated Use Components.utils.reportError instead. */
[deprecated, implicit_jscontext] void reportError(in jsval error);
/* 'lastResult' is accessible via JavaScript only */
/* 'returnCode' is accessible via JavaScript only */
};