feat(compat): CJS/ESM interoperability #13553
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bartlomieju
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Feb 15, 2022
bartlomieju
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ry
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Feb 27, 2022
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This commit adds CJS/ESM interoperability when running in --compat mode.
Before executing files, they are analyzed and all CommonJS modules are
transformed on the fly to a ES modules. This is done by utilizing
analyze_cjs()functionality from
deno_ast. After discovering exports and reexports, an ESmodule is rendered and saved in memory for later use.
There's a caveat that all files ending with ".js" extension are considered as
CommonJS modules (unless there's a related "package.json" with "type": "module").
Closes #12648
Closes #13200