debuggability.js
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"use strict";
module.exports = function(Promise, CapturedTrace) {
var async = require("./async.js");
var Warning = require("./errors.js").Warning;
var util = require("./util.js");
var canAttachTrace = util.canAttachTrace;
var unhandledRejectionHandled;
var possiblyUnhandledRejection;
var debugging = false || (util.isNode &&
(!!process.env["BLUEBIRD_DEBUG"] ||
process.env["NODE_ENV"] === "development"));
Promise.prototype._ensurePossibleRejectionHandled = function () {
this._setRejectionIsUnhandled();
async.invokeLater(this._notifyUnhandledRejection, this, undefined);
};
Promise.prototype._notifyUnhandledRejectionIsHandled = function () {
CapturedTrace.fireRejectionEvent("rejectionHandled",
unhandledRejectionHandled, undefined, this);
};
Promise.prototype._notifyUnhandledRejection = function () {
if (this._isRejectionUnhandled()) {
var reason = this._getCarriedStackTrace() || this._settledValue;
this._setUnhandledRejectionIsNotified();
CapturedTrace.fireRejectionEvent("unhandledRejection",
possiblyUnhandledRejection, reason, this);
}
};
Promise.prototype._setUnhandledRejectionIsNotified = function () {
this._bitField = this._bitField | 524288;
};
Promise.prototype._unsetUnhandledRejectionIsNotified = function () {
this._bitField = this._bitField & (~524288);
};
Promise.prototype._isUnhandledRejectionNotified = function () {
return (this._bitField & 524288) > 0;
};
Promise.prototype._setRejectionIsUnhandled = function () {
this._bitField = this._bitField | 2097152;
};
Promise.prototype._unsetRejectionIsUnhandled = function () {
this._bitField = this._bitField & (~2097152);
if (this._isUnhandledRejectionNotified()) {
this._unsetUnhandledRejectionIsNotified();
this._notifyUnhandledRejectionIsHandled();
}
};
Promise.prototype._isRejectionUnhandled = function () {
return (this._bitField & 2097152) > 0;
};
Promise.prototype._setCarriedStackTrace = function (capturedTrace) {
this._bitField = this._bitField | 1048576;
this._fulfillmentHandler0 = capturedTrace;
};
Promise.prototype._isCarryingStackTrace = function () {
return (this._bitField & 1048576) > 0;
};
Promise.prototype._getCarriedStackTrace = function () {
return this._isCarryingStackTrace()
? this._fulfillmentHandler0
: undefined;
};
Promise.prototype._captureStackTrace = function () {
if (debugging) {
this._trace = new CapturedTrace(this._peekContext());
}
return this;
};
Promise.prototype._attachExtraTrace = function (error, ignoreSelf) {
if (debugging && canAttachTrace(error)) {
var trace = this._trace;
if (trace !== undefined) {
if (ignoreSelf) trace = trace._parent;
}
if (trace !== undefined) {
trace.attachExtraTrace(error);
} else if (!error.__stackCleaned__) {
var parsed = CapturedTrace.parseStackAndMessage(error);
error.stack = parsed.stack.join("\n");
error.__stackCleaned__ = true;
}
}
};
Promise.prototype._warn = function(message) {
var warning = new Warning(message);
var ctx = this._peekContext();
if (ctx) {
ctx.attachExtraTrace(warning);
} else {
var parsed = CapturedTrace.parseStackAndMessage(warning);
warning.stack = parsed.message + "\n" + parsed.stack.join("\n");
}
CapturedTrace.formatAndLogError(warning, "");
};
Promise.onPossiblyUnhandledRejection = function (fn) {
possiblyUnhandledRejection = typeof fn === "function" ? fn : undefined;
};
Promise.onUnhandledRejectionHandled = function (fn) {
unhandledRejectionHandled = typeof fn === "function" ? fn : undefined;
};
Promise.longStackTraces = function () {
if (async.haveItemsQueued() &&
debugging === false
) {
throw new Error("cannot enable long stack traces after promises have been created\u000a\u000a See http://goo.gl/DT1qyG\u000a");
}
debugging = CapturedTrace.isSupported();
};
Promise.hasLongStackTraces = function () {
return debugging && CapturedTrace.isSupported();
};
if (!CapturedTrace.isSupported()) {
Promise.longStackTraces = function(){};
debugging = false;
}
return function() {
return debugging;
};
};