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worker: add ports property to MessageEvents #37538

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Add ev.ports for spec compliancy.

Since we only emit the raw data value, and only create the
MessageEvent instance if there are EventTarget-style listeners,
we store the ports list temporarily on the MessagePort object itself,
so that we can look it up when we need to create the event object.

Fixes: #37358

Add `ev.ports` for spec compliancy.

Since we only emit the raw `data` value, and only create the
`MessageEvent` instance if there are EventTarget-style listeners,
we store the ports list temporarily on the MessagePort object itself,
so that we can look it up when we need to create the event object.

Fixes: nodejs#37358
@nodejs-github-bot nodejs-github-bot added c++ Issues and PRs that require attention from people who are familiar with C++. needs-ci PRs that need a full CI run. worker Issues and PRs related to Worker support. labels Feb 27, 2021
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addaleax added a commit that referenced this pull request Mar 3, 2021
Add `ev.ports` for spec compliancy.

Since we only emit the raw `data` value, and only create the
`MessageEvent` instance if there are EventTarget-style listeners,
we store the ports list temporarily on the MessagePort object itself,
so that we can look it up when we need to create the event object.

Fixes: #37358

PR-URL: #37538
Reviewed-By: Michaël Zasso <targos@protonmail.com>
Reviewed-By: Joyee Cheung <joyeec9h3@gmail.com>
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addaleax commented Mar 3, 2021

Landed in 007a85c

@addaleax addaleax closed this Mar 3, 2021
@addaleax addaleax deleted the messageport-ports branch March 3, 2021 22:24
danielleadams pushed a commit that referenced this pull request Mar 16, 2021
Add `ev.ports` for spec compliancy.

Since we only emit the raw `data` value, and only create the
`MessageEvent` instance if there are EventTarget-style listeners,
we store the ports list temporarily on the MessagePort object itself,
so that we can look it up when we need to create the event object.

Fixes: #37358

PR-URL: #37538
Reviewed-By: Michaël Zasso <targos@protonmail.com>
Reviewed-By: Joyee Cheung <joyeec9h3@gmail.com>
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MessageEvent#ports should contain transferred ports
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