Support AST transforms

[samuelgja]

What is the problem this feature would solve?

Just idea to expose bun code ast in transpiler api.

With this other implementation can be done, maybe custom bundlers, etc.

What is the feature you are proposing to solve the problem?

It can open new ways how to use transpiler api.
Also do not rely on 3d party libs like meriyah, acorn or babel to parse ast from a code.

What alternatives have you considered?

For example it can provide ast in ESTree format, or maybe even with typescript defs - like swc do.

Thanks. Btw, It's just idea and thumbs up for bun 👍
Close it if it's not relevant.

[vjpr]

Related

• custom transformer for Bun.Transpiler #3936
• Expose AST of current source file #3763

[huseeiin]

i'd also love if it included "visitors" or "selectors" (its the same thing) like in babel or eslint. this feature was removed from swc (which is way faster than babel) though. that's why bun would be the best and fastest ast parser if it included visitors/selectors.