我正在加入论坛的插件，我收到了这个错误：
Error: Component returned failure code: 0x8007000e (NS_ERROR_OUT_OF_MEMORY) [nsIXPCComponents_Utils.evalInSandbox]
我读到错误意味着脚本进入无限循环，直到填满沙箱。
显然导致此错误的js文件是script-compiler.js
这是剧本：
var ddplus_gmCompiler={
// getUrlContents adapted from Greasemonkey Compiler
// http://www.letitblog.com/code/python/greasemonkey.py.txt
// used under GPL permission
//
// most everything else below based heavily off of Greasemonkey
// http://greasemonkey.mozdev.org/
// used under GPL permission
getUrlContents: function(aUrl){
var ioService=Components.classes["@mozilla.org/network/io-service;1"]
.getService(Components.interfaces.nsIIOService);
var scriptableStream=Components
.classes["@mozilla.org/scriptableinputstream;1"]
.getService(Components.interfaces.nsIScriptableInputStream);
var channel=ioService.newChannel(aUrl, null, null);
var input=channel.open();
scriptableStream.init(input);
var str=scriptableStream.read(input.available());
scriptableStream.close();
input.close();
return str;
},
isGreasemonkeyable: function(url) {
var scheme=Components.classes["@mozilla.org/network/io-service;1"]
.getService(Components.interfaces.nsIIOService)
.extractScheme(url);
return (
(scheme == "http" || scheme == "https" || scheme == "file") &&
!/hiddenWindow\.html$/.test(url)
);
},
contentLoad: function(e) {
var unsafeWin=e.target.defaultView;
if (unsafeWin.wrappedJSObject) unsafeWin=unsafeWin.wrappedJSObject;
var unsafeLoc=new XPCNativeWrapper(unsafeWin, "location").location;
var href=new XPCNativeWrapper(unsafeLoc, "href").href;
if (
ddplus_gmCompiler.isGreasemonkeyable(href)
&& ( /http:\/\/ddunlimited\.net/.test(href) )
&& true
) {
var script=ddplus_gmCompiler.getUrlContents(
'chrome://ddplus/content/ddplus.js'
);
ddplus_gmCompiler.injectScript(script, href, unsafeWin);
}
},
injectScript: function(script, url, unsafeContentWin) {
var sandbox, script, logger, storage, xmlhttpRequester;
var safeWin=new XPCNativeWrapper(unsafeContentWin);
sandbox=new Components.utils.Sandbox(safeWin);
var storage=new ddplus_ScriptStorage();
xmlhttpRequester=new ddplus_xmlhttpRequester(
unsafeContentWin, window//appSvc.hiddenDOMWindow
);
sandbox.window=safeWin;
sandbox.document=sandbox.window.document;
sandbox.unsafeWindow=unsafeContentWin;
// patch missing properties on xpcnw
sandbox.XPathResult=Components.interfaces.nsIDOMXPathResult;
// add our own APIs
sandbox.GM_addStyle=function(css) { ddplus_gmCompiler.addStyle(sandbox.document, css) };
sandbox.GM_setValue=ddplus_gmCompiler.hitch(storage, "setValue");
sandbox.GM_getValue=ddplus_gmCompiler.hitch(storage, "getValue");
// kick : aggiunta la funzione
sandbox.GM_remove=ddplus_gmCompiler.hitch(storage, "remove");
sandbox.GM_openInTab=ddplus_gmCompiler.hitch(this, "openInTab", unsafeContentWin);
sandbox.GM_xmlhttpRequest=ddplus_gmCompiler.hitch(
xmlhttpRequester, "contentStartRequest"
);
//unsupported
sandbox.GM_registerMenuCommand=function(){};
sandbox.GM_log=function(){};
sandbox.GM_getResourceURL=function(){};
sandbox.GM_getResourceText=function(){};
sandbox.__proto__=sandbox.window;
try {
this.evalInSandbox(
"(function(){"+script+"})()",
url,
sandbox);
} catch (e) {
var e2=new Error(typeof e=="string" ? e : e.message);
e2.fileName=script.filename;
e2.lineNumber=0;
//GM_logError(e2);
alert(e2);
}
},
evalInSandbox: function(code, codebase, sandbox) {
if (Components.utils && Components.utils.Sandbox) {
// DP beta+
Components.utils.evalInSandbox(code, sandbox);
} else if (Components.utils && Components.utils.evalInSandbox) {
// DP alphas
Components.utils.evalInSandbox(code, codebase, sandbox);
} else if (Sandbox) {
// 1.0.x
evalInSandbox(code, sandbox, codebase);
} else {
throw new Error("Could not create sandbox.");
}
},
openInTab: function(unsafeContentWin, url) {
var tabBrowser = getBrowser(), browser, isMyWindow = false;
for (var i = 0; browser = tabBrowser.browsers[i]; i++)
if (browser.contentWindow == unsafeContentWin) {
isMyWindow = true;
break;
}
if (!isMyWindow) return;
var loadInBackground, sendReferrer, referrer = null;
loadInBackground = tabBrowser.mPrefs.getBoolPref("browser.tabs.loadInBackground");
sendReferrer = tabBrowser.mPrefs.getIntPref("network.http.sendRefererHeader");
if (sendReferrer) {
var ios = Components.classes["@mozilla.org/network/io-service;1"]
.getService(Components.interfaces.nsIIOService);
referrer = ios.newURI(content.document.location.href, null, null);
}
tabBrowser.loadOneTab(url, referrer, null, null, loadInBackground);
},
hitch: function(obj, meth) {
var unsafeTop = new XPCNativeWrapper(unsafeContentWin, "top").top;
for (var i = 0; i < this.browserWindows.length; i++) {
this.browserWindows[i].openInTab(unsafeTop, url);
}
},
apiLeakCheck: function(allowedCaller) {
var stack=Components.stack;
var leaked=false;
do {
if (2==stack.language) {
if ('chrome'!=stack.filename.substr(0, 6) &&
allowedCaller!=stack.filename
) {
leaked=true;
break;
}
}
stack=stack.caller;
} while (stack);
return leaked;
},
hitch: function(obj, meth) {
if (!obj[meth]) {
throw "method '" + meth + "' does not exist on object '" + obj + "'";
}
var hitchCaller=Components.stack.caller.filename;
var staticArgs = Array.prototype.splice.call(arguments, 2, arguments.length);
return function() {
if (ddplus_gmCompiler.apiLeakCheck(hitchCaller)) {
return;
}
// make a copy of staticArgs (don't modify it because it gets reused for
// every invocation).
var args = staticArgs.concat();
// add all the new arguments
for (var i = 0; i < arguments.length; i++) {
args.push(arguments[i]);
}
// invoke the original function with the correct this obj and the combined
// list of static and dynamic arguments.
return obj[meth].apply(obj, args);
};
},
addStyle:function(doc, css) {
var head, style;
head = doc.getElementsByTagName('head')[0];
if (!head) { return; }
style = doc.createElement('style');
style.type = 'text/css';
style.innerHTML = css;
head.appendChild(style);
},
onLoad: function() {
var appcontent=window.document.getElementById("appcontent");
if (appcontent && !appcontent.greased_ddplus_gmCompiler) {
appcontent.greased_ddplus_gmCompiler=true;
appcontent.addEventListener("DOMContentLoaded", ddplus_gmCompiler.contentLoad, false);
}
},
onUnLoad: function() {
//remove now unnecessary listeners
window.removeEventListener('load', ddplus_gmCompiler.onLoad, false);
window.removeEventListener('unload', ddplus_gmCompiler.onUnLoad, false);
window.document.getElementById("appcontent")
.removeEventListener("DOMContentLoaded", ddplus_gmCompiler.contentLoad, false);
},
}; //object ddplus_gmCompiler
function ddplus_ScriptStorage() {
this.prefMan=new ddplus_PrefManager();
}
ddplus_ScriptStorage.prototype.setValue = function(name, val) {
this.prefMan.setValue(name, val);
}
ddplus_ScriptStorage.prototype.getValue = function(name, defVal) {
return this.prefMan.getValue(name, defVal);
}
ddplus_ScriptStorage.prototype.remove = function(name) {
return this.prefMan.remove(name);
}
window.addEventListener('load', ddplus_gmCompiler.onLoad, false);
window.addEventListener('unload', ddplus_gmCompiler.onUnLoad, false);
用户脚本非常庞大，可在this gist中使用。
能够看到错误：
加载回复页后，系统会立即显示该消息。
在实践中是专门为论坛创建的工具......其功能旨在简化主持人的日常行为。现在该论坛已经更改了域名，并试图使其与新论坛兼容。我正在使用简单的文本编辑器编辑js文件。当我编辑上面发布的脚本时，输入错误。如果你不触摸这个脚本......某些功能会消失，不再存在。
有人可以帮帮我吗？非常感谢你：D答案 0 :(得分：1)
好的，毕竟可重现。这种情况下的错误有一个伪造的消息，因为这实际上不是一个OOM条件，但是evalInSandbox()从JS引擎接收到脚本被中止的通知（由于它没有响应）和evalInSandbox()无法分辨出来。
原因是你的代码在第425行（续）中无限循环：
var max = textArea.parentNode.parentNode.clientHeight;
while (max == textArea.parentNode.parentNode.clientHeight)
textArea.rows++;
这个循环永远不会中止，因为条件永远不会得到false。