Feature Use Case

Because Node.js supports both require() and import() in CommonJS files, it would be helpful to be able to retain import() calls instead of translating them into require(). Here's a very simple example of what I'm trying to do:

https://rollupjs.org/repl/?version=2.71.1&shareable=JTdCJTIybW9kdWxlcyUyMiUzQSU1QiU3QiUyMm5hbWUlMjIlM0ElMjJtYWluLmpzJTIyJTJDJTIyY29kZSUyMiUzQSUyMmV4cG9ydCUyMGZ1bmN0aW9uJTIwZG9JbXBvcnQoc3BlY2lmaWVyKSUyMCU3QiU1Q24lNUN0cmV0dXJuJTIwaW1wb3J0KHNwZWNpZmllciklM0IlNUNuJTdEJTIyJTJDJTIyaXNFbnRyeSUyMiUzQXRydWUlN0QlNUQlMkMlMjJvcHRpb25zJTIyJTNBJTdCJTIyZm9ybWF0JTIyJTNBJTIyY2pzJTIyJTJDJTIybmFtZSUyMiUzQSUyMm15QnVuZGxlJTIyJTJDJTIyYW1kJTIyJTNBJTdCJTIyaWQlMjIlM0ElMjIlMjIlN0QlMkMlMjJnbG9iYWxzJTIyJTNBJTdCJTdEJTdEJTJDJTIyZXhhbXBsZSUyMiUzQW51bGwlN0Q=

Feature Proposal

Add a preserveDynamicImports option that can be set to:

• "all" - never rewrite import() regardless of the value passed in
• "variable" - only preserve import() if it's used with a variable, otherwise overwrite as usual
• "static" - only preserve import() when passed a constant