diff options
Diffstat (limited to 'node_modules/bluebird/js/main/debuggability.js')
-rw-r--r-- | node_modules/bluebird/js/main/debuggability.js | 153 |
1 files changed, 153 insertions, 0 deletions
diff --git a/node_modules/bluebird/js/main/debuggability.js b/node_modules/bluebird/js/main/debuggability.js new file mode 100644 index 000000000..347476d86 --- /dev/null +++ b/node_modules/bluebird/js/main/debuggability.js @@ -0,0 +1,153 @@ +"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")); + +if (debugging) { + async.disableTrampolineIfNecessary(); +} + +Promise.prototype._ignoreRejections = function() { + this._unsetRejectionIsUnhandled(); + this._bitField = this._bitField | 16777216; +}; + +Promise.prototype._ensurePossibleRejectionHandled = function () { + if ((this._bitField & 16777216) !== 0) return; + 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); + util.notEnumerableProp(error, "stack", + parsed.message + "\n" + parsed.stack.join("\n")); + util.notEnumerableProp(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(); + if (debugging) { + async.disableTrampolineIfNecessary(); + } +}; + +Promise.hasLongStackTraces = function () { + return debugging && CapturedTrace.isSupported(); +}; + +if (!CapturedTrace.isSupported()) { + Promise.longStackTraces = function(){}; + debugging = false; +} + +return function() { + return debugging; +}; +}; |