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/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
"use strict";
module.metadata = {
"stability": "experimental"
};
const { get, format } = require("../console/traceback");
const { get: getPref } = require("../preferences/service");
const PREFERENCE = "devtools.errorconsole.deprecation_warnings";
function deprecateUsage(msg) {
// Print caller stacktrace in order to help figuring out which code
// does use deprecated thing
let stack = get().slice(2);
if (getPref(PREFERENCE))
console.error("DEPRECATED: " + msg + "\n" + format(stack));
}
exports.deprecateUsage = deprecateUsage;
function deprecateFunction(fun, msg) {
return function deprecated() {
deprecateUsage(msg);
return fun.apply(this, arguments);
};
}
exports.deprecateFunction = deprecateFunction;
function deprecateEvent(fun, msg, evtTypes) {
return function deprecateEvent(evtType) {
if (evtTypes.indexOf(evtType) >= 0)
deprecateUsage(msg);
return fun.apply(this, arguments);
};
}
exports.deprecateEvent = deprecateEvent;
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