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Avoid memory issues with hoisted variables #4183

merged 1 commit into from Jul 21, 2021


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@lukastaegert lukastaegert commented Jul 21, 2021

This PR contains:

  • bugfix
  • feature
  • refactor
  • documentation
  • other

Are tests included?

  • yes (bugfixes and features will not be merged without tests)
  • no

Breaking Changes?

  • yes (breaking changes will not be merged unless absolutely necessary)
  • no

List any relevant issue numbers:
Resolves #4181


This will avoid a serious memory issue when using a lot of hoisted variables by changing the way those variables are deoptimized.

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@github-actions github-actions bot commented Jul 21, 2021

Thank you for your contribution! ❤️

You can try out this pull request locally by installing Rollup via

npm install rollup/rollup#gh-4181-fix-memory-issue

or load it into the REPL:

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@codecov codecov bot commented Jul 21, 2021

Codecov Report

Merging #4183 (9a81b83) into master (ea96ab0) will increase coverage by 0.00%.
The diff coverage is 91.66%.

Impacted file tree graph

@@           Coverage Diff           @@
##           master    #4183   +/-   ##
  Coverage   98.33%   98.34%           
  Files         202      202           
  Lines        7227     7230    +3     
  Branches     2114     2114           
+ Hits         7107     7110    +3     
  Misses         58       58           
  Partials       62       62           
Impacted Files Coverage Δ
src/ast/variables/LocalVariable.ts 93.24% <87.50%> (+0.18%) ⬆️
src/ast/nodes/Identifier.ts 100.00% <100.00%> (ø)
src/ast/scopes/BlockScope.ts 100.00% <100.00%> (ø)

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@lukastaegert lukastaegert force-pushed the gh-4181-fix-memory-issue branch from b6745f0 to 9a81b83 Jul 21, 2021
@lukastaegert lukastaegert marked this pull request as ready for review Jul 21, 2021
@lukastaegert lukastaegert merged commit 8d1cdad into master Jul 21, 2021
8 of 9 checks passed
@lukastaegert lukastaegert deleted the gh-4181-fix-memory-issue branch Jul 21, 2021
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@sosukesuzuki sosukesuzuki commented Jul 21, 2021

Thank you!!

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2 participants