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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";
// eslint-disable-next-line no-var
var global = this;
this.catcher = (function() {
const exports = {};
let handler;
let queue = [];
const log = global.log;
exports.unhandled = function(error, info) {
if (!error.noReport) {
log.error("Unhandled error:", error, info);
}
const e = makeError(error, info);
if (!handler) {
queue.push(e);
} else {
handler(e);
}
};
/** Turn an exception into an error object */
function makeError(exc, info) {
let result;
if (exc.fromMakeError) {
result = exc;
} else {
result = {
fromMakeError: true,
name: exc.name || "ERROR",
message: String(exc),
stack: exc.stack,
};
for (const attr in exc) {
result[attr] = exc[attr];
}
}
if (info) {
for (const attr of Object.keys(info)) {
result[attr] = info[attr];
}
}
return result;
}
/** Wrap the function, and if it raises any exceptions then call unhandled() */
exports.watchFunction = function watchFunction(func, quiet) {
return function() {
try {
return func.apply(this, arguments);
} catch (e) {
if (!quiet) {
exports.unhandled(e);
}
throw e;
}
};
};
exports.watchPromise = function watchPromise(promise, quiet) {
return promise.catch((e) => {
if (quiet) {
if (!e.noReport) {
log.debug("------Error in promise:", e);
log.debug(e.stack);
}
} else {
if (!e.noReport) {
log.error("------Error in promise:", e);
log.error(e.stack);
}
exports.unhandled(makeError(e));
}
throw e;
});
};
exports.registerHandler = function(h) {
if (handler) {
log.error("registerHandler called after handler was already registered");
return;
}
handler = h;
for (const error of queue) {
handler(error);
}
queue = [];
};
return exports;
})();
null;
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