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lib: add warning on dynamic import es modules #30720

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@juanarbol juanarbol commented Nov 29, 2019

Fixes #30601.

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  • make -j4 test (UNIX), or vcbuild test (Windows) passes
  • commit message follows commit guidelines

@nodejs-github-bot nodejs-github-bot added the process Issues and PRs related to the process subsystem. label Nov 29, 2019
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Ref: #30601

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cjihrig commented Nov 30, 2019

Can you add a test please.

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Sure, should I use a child process and test std err, or is there another way?

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cjihrig commented Nov 30, 2019

We have common.expectWarning() in our tests. You should be able to look in the test/ directory for examples.

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As long as code is undefined, common.expectWarning throws me an exception. So I used assertions instead of expectWarning

const [ message, code ] = expected.shift();
                              ^

TypeError: undefined is not iterable (cannot read property Symbol(Symbol.iterator))

lib/internal/process/esm_loader.js Outdated Show resolved Hide resolved
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@guybedford Done! Thanks for reviewing! Tell me if something else is not correct.

@guybedford guybedford added the esm Issues and PRs related to the ECMAScript Modules implementation. label Dec 7, 2019
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This looks good to me.

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@guybedford guybedford added the author ready PRs that have at least one approval, no pending requests for changes, and a CI started. label Dec 7, 2019
guybedford pushed a commit that referenced this pull request Dec 7, 2019
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Landed in 6669cd1.

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targos commented Jan 14, 2020

Depends on #29866 to land on v12.x-staging

targos pushed a commit to targos/node that referenced this pull request May 7, 2020
@targos targos added backported-to-v12.x and removed author ready PRs that have at least one approval, no pending requests for changes, and a CI started. backport-open-v12.x labels May 7, 2020
targos pushed a commit that referenced this pull request May 7, 2020
PR-URL: #30720
Backport-PR-URL: #33055
Reviewed-By: Guy Bedford <[email protected]>
targos pushed a commit that referenced this pull request May 13, 2020
PR-URL: #30720
Backport-PR-URL: #33055
Reviewed-By: Guy Bedford <[email protected]>
@juanarbol juanarbol deleted the warning-es-dynamic-import branch January 19, 2021 16:38
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Experimental modules warning does not show when using dynamic import
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