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vm: remove unnecessary HandleScopes #2001

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merged 1 commit into from
Jun 17, 2015

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bnoordhuis
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The accessors run inside an implicit HandleScope, there is no need to
create a new one.

R=@trevnorris?

CI: https://jenkins-iojs.nodesource.com/view/iojs/job/iojs+any-pr+multi/37/

@mscdex mscdex added the vm Issues and PRs related to the vm subsystem. label Jun 17, 2015
The accessors run inside an implicit HandleScope, there is no need to
create a new one.

PR-URL: nodejs#2001
Reviewed-By: Trevor Norris <trev.norris@gmail.com>
@trevnorris
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LGTM

@bnoordhuis bnoordhuis closed this Jun 17, 2015
@bnoordhuis bnoordhuis deleted the remove-handlescopes branch June 17, 2015 18:06
@bnoordhuis bnoordhuis merged commit 5d0cee4 into nodejs:master Jun 17, 2015
@domenic
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domenic commented Jun 17, 2015

For my future learnings, how do you know this?

@rvagg
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rvagg commented Jun 17, 2015

my understanding is that methods that are called by V8 from JS code have an implicit HandleScope, that's standard methods as well as property getters and whatnot.

@bnoordhuis
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@domenic It's part of the generated code: https://github.com/nodejs/io.js/blob/v2.3.0/deps/v8/src/x64/code-stubs-x64.cc#L4751-4761 (CallApiFunctionAndReturn is used for both normal API callbacks and accessors.)

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domenic commented Jun 17, 2015

Awesome, thanks!

@rvagg rvagg mentioned this pull request Jun 18, 2015
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5 participants