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Completely omit files that do not have any included statements #2940

merged 1 commit into from Jun 14, 2019


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@lukastaegert lukastaegert commented Jun 14, 2019

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 #2927


Previously even files where all statements were tree-shaken had their banner and footer comments included. This PR changes this so that files without included statements

  • are not rendered internally for better performance
  • are completely omitted from the generated code including all comments
  • can be safely detected by checking for renderedLength === 0 in the modules property of chunks in the generated bundle

@lukastaegert lukastaegert force-pushed the gh-2927-completely-treeshake-files branch from 43d3f3d to ebeddc1 Compare Jun 14, 2019
@lukastaegert lukastaegert merged commit b216023 into master Jun 14, 2019
4 of 6 checks passed
@lukastaegert lukastaegert deleted the gh-2927-completely-treeshake-files branch Jun 14, 2019
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