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add stack trace for warnings https://github.com/petkaantonov/bluebird… #1553

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add stack trace for warnings https://github.com/petkaantonov/bluebird… #1553

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5 changes: 4 additions & 1 deletion src/promise.js
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Original file line number Diff line number Diff line change
Expand Up @@ -121,6 +121,7 @@ Promise.prototype.then = function (didFulfill, didReject) {
if (arguments.length > 1) {
msg += ", " + util.classString(didReject);
}
msg += new Error().stack;
this._warn(msg);
}
return this._then(didFulfill, didReject, undefined, undefined, undefined);
Expand Down Expand Up @@ -158,7 +159,8 @@ Promise.prototype.toJSON = function () {

Promise.prototype.all = function () {
if (arguments.length > 0) {
this._warn(".all() was passed arguments but it does not take any");
this._warn(".all() was passed arguments but it does not take any "
+ new Error().stack);
}
return new PromiseArray(this).promise();
};
Expand Down Expand Up @@ -498,6 +500,7 @@ function(reason, synchronous, ignoreNonErrorWarnings) {
if (!hasStack && !ignoreNonErrorWarnings && debug.warnings()) {
var message = "a promise was rejected with a non-error: " +
util.classString(reason);
message += new Error().stack;
this._warn(message, true);
}
this._attachExtraTrace(trace, synchronous ? hasStack : false);
Expand Down