v6.x backport: promise: better stack traces for --trace-warnings #10378
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Give better stack traces for `PromiseRejectionHandledWarning` and `UnhandledPromiseRejectionWarning`s. For `PromiseRejectionHandledWarning`, when it is likely that there is an `Error` object generated, it is created early to provide a proper stack trace. For `UnhandledPromiseRejectionWarning`, the stack trace of the underlying error object is used, if possible. Fixes: nodejs#9523 PR-URL: nodejs#9525 Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl> Reviewed-By: Daniel Bevenius <daniel.bevenius@gmail.com> Reviewed-By: Michael Dawson <michael_dawson@ca.ibm.com> Reviewed-By: Colin Ihrig <cjihrig@gmail.com> Reviewed-By: James M Snell <jasnell@gmail.com> Reviewed-By: Michaël Zasso <targos@protonmail.com>
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Fishrock123
approved these changes
Dec 21, 2016
jasnell
approved these changes
Dec 23, 2016
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Backport of #9525 to v6.x
Had to resolve a minor conflict in
lib/internal/process/promises.jsand remove the deprecation message from the test output.Given that there was some worrying about breakage in #9525, this can wait for a bit if that makes people feel more comfortable. Generally the reactions so far seem to be positive, though.
CI: https://ci.nodejs.org/job/node-test-commit/6764/
Give better stack traces for
PromiseRejectionHandledWarningand
UnhandledPromiseRejectionWarnings.For
PromiseRejectionHandledWarning, when it is likely that thereis an
Errorobject generated, it is created early to provide aproper stack trace.
For
UnhandledPromiseRejectionWarning, the stack trace of theunderlying error object is used, if possible.
Fixes: #9523
PR-URL: #9525