Changelog: swc v1.2.42
Bugfixes#
bundler: Handle of export * correctly. (#1264)#
Previously the bundler of [swc][] did not exclude default while handling export *.
This is wrong and it's fixed.
As a result, you can now export default while using export * from './foo'
The code above now works.
bundler: Fix statement ordering. (#1264)#
Order of statements are now preserved. Previously, the bundler only considers about dependancy, but it resulted in some bugs so I patched it to preserve original order.
bundler: Group statements from same module. (#1264)#
While flattening all statements, the bundler now prefers statements from same module. It will help debugging the bundle, as related statements live at simillar place.
fixer: Handle assignmnet in new exprssion correctly. (#1264)#
Previously [swc][] errornously removed parenthesis from const a = new (a = b);.
It resulted in const a = new a = b;, which has different meaning.
fixer: Handle comma expression in new exprssion correctly. (#1264)#
Previously [swc][] errornously removed parenthesis from const a = new (a, b);.
It resulted in const a = new a, b; , which has different meaning.
This is now fixed.
bundler: Prevent duplicate variable. (#1296)#
This bug occurrs when export * as foo is mixed with export * from '' more than three times, and with import.
It's now fixed and bundler bundles it correctly.
bundler: Handle keywords. (#1296)#
EcmaScript allows using keywords as an identifier in some places.
As the bundler flatten statements, it made a variable named instanceof when it met export { foo as instanceof }.
But this is a bug and it's now renamed to something other.
dce: Prevent tags in tagged template literals. (#1296)#
The dce was too aggresive and it removed tagged template literals. It now preserves as tagged template literals can have side effect.
Note:
If you are using some old target, you are not affected.
dce: Handle throw statement correctly. (#1296)#
Again, it errornously removed something used by throw statement. I patched it to mark argument as used correctly.