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[v10.x] src: yield empty maybes for failed AsyncWrap::MakeCallback calls #22505

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Clean cherry-pick of #22078 + fixup code

Use an empty `MaybeLocal<Value>` as the return value for
`AsyncWrap::MakeCallback()` if an exception occurred,
regardless of `MakeCallback` depth.

Unfortunately, the public API can not make this switch without
a breaking change (and possibly some kind of deprecation/renaming).

PR-URL: nodejs#22078
Reviewed-By: Joyee Cheung <[email protected]>
Reviewed-By: Ujjwal Sharma <[email protected]>
Reviewed-By: James M Snell <[email protected]>
Reviewed-By: Jon Moss <[email protected]>
@nodejs-github-bot nodejs-github-bot added c++ Issues and PRs that require attention from people who are familiar with C++. lib / src Issues and PRs related to general changes in the lib or src directory. v10.x labels Aug 24, 2018
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Thank you!

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targos commented Aug 28, 2018

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addaleax commented Aug 28, 2018

Landed in 63f78fa

@addaleax addaleax closed this Aug 28, 2018
@addaleax addaleax deleted the backport-22078-v10.x branch August 28, 2018 19:43
addaleax added a commit that referenced this pull request Aug 28, 2018
Use an empty `MaybeLocal<Value>` as the return value for
`AsyncWrap::MakeCallback()` if an exception occurred,
regardless of `MakeCallback` depth.

Unfortunately, the public API can not make this switch without
a breaking change (and possibly some kind of deprecation/renaming).

PR-URL: #22078
Backport-PR-URL: #22505
Reviewed-By: Michaël Zasso <[email protected]>
targos pushed a commit that referenced this pull request Sep 3, 2018
Use an empty `MaybeLocal<Value>` as the return value for
`AsyncWrap::MakeCallback()` if an exception occurred,
regardless of `MakeCallback` depth.

Unfortunately, the public API can not make this switch without
a breaking change (and possibly some kind of deprecation/renaming).

PR-URL: #22078
Backport-PR-URL: #22505
Reviewed-By: Michaël Zasso <[email protected]>
targos pushed a commit that referenced this pull request Sep 6, 2018
Use an empty `MaybeLocal<Value>` as the return value for
`AsyncWrap::MakeCallback()` if an exception occurred,
regardless of `MakeCallback` depth.

Unfortunately, the public API can not make this switch without
a breaking change (and possibly some kind of deprecation/renaming).

PR-URL: #22078
Backport-PR-URL: #22505
Reviewed-By: Michaël Zasso <[email protected]>
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