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docs(in-depth): add dead code elimination page - #8005
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| ### Marking Entire Modules | ||
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| While annotations mark individual expressions or functions, you can also mark entire modules as side-effect-free. This is equivalent to marking every statement in the module as side-effect-free. |
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This is equivalent to marking every statement in the module as side-effect-free.
This is what I was expecting. But it seems this isn't how it works in webpack (related docs) and Rollup (related docs) because the sideeffect field in the example can be "sideEffects": ["**/*.css"]...
But this definition would not allow us to do #7986. We can skip the import if the imported module is side-effect-free, instead of "if the importer module is side-effect-free".
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Great point. I was misunderstanding too🤔
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Note: this PR describes how I understood. It's not correct as pointed out in #8005 (comment) |
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