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/* -*- indent-tabs-mode: nil; js-indent-level: 2 -*- */
/* 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/. */
// A wrapper for Services.prefs that compares our shim content
// implementation with the real service.
// We assume we're loaded in a global where Services was already loaded.
/* globals isDeeply, Services */
"use strict";
function setMethod(methodName, prefName, value) {
let savedException;
let prefThrew = false;
try {
Services.prefs[methodName](prefName, value);
} catch (e) {
prefThrew = true;
savedException = e;
}
let realThrew = false;
try {
SpecialPowers[methodName](prefName, value);
} catch (e) {
realThrew = true;
savedException = e;
}
is(prefThrew, realThrew, methodName + " [throw check]");
if (prefThrew || realThrew) {
throw savedException;
}
}
function getMethod(methodName, prefName) {
let prefThrew = false;
let prefValue = undefined;
let savedException;
try {
prefValue = Services.prefs[methodName](prefName);
} catch (e) {
prefThrew = true;
savedException = e;
}
let realValue = undefined;
let realThrew = false;
try {
realValue = SpecialPowers[methodName](prefName);
} catch (e) {
realThrew = true;
savedException = e;
}
is(prefThrew, realThrew, methodName + " [throw check]");
isDeeply(prefValue, realValue, methodName + " [equality]");
if (prefThrew || realThrew) {
throw savedException;
}
return prefValue;
}
var WrappedPrefs = {};
for (let method of ["getPrefType", "getBoolPref", "getCharPref", "getIntPref",
"clearUserPref"]) {
WrappedPrefs[method] = getMethod.bind(null, method);
}
for (let method of ["setBoolPref", "setCharPref", "setIntPref"]) {
WrappedPrefs[method] = setMethod.bind(null, method);
}
// Silence eslint.
exports.WrappedPrefs = WrappedPrefs;
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