denoland-deno/cli/tests/testdata/compat/import_cjs_from_esm.out at d76acfdc17e27b53fc53e6cd3051ff0acaefef42 - foster/denoland-deno - Foster's Laboratory

foster/denoland-deno

mirror of https://github.com/denoland/deno.git synced 2024-11-22 15:06:54 -05:00

Bartek Iwańczuk a65ce33fab

feat(compat): CJS/ESM interoperability (#13553 )

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 ES
module 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").

2022-02-27 14:38:45 +01:00

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{ a: "A", b: "B", foo: "foo", bar: "bar", fizz: { buzz: "buzz", fizz: "FIZZ" } }