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@getify @rreverser @marijnjh What tools? I keep on hearing this but have no clear examples of where this actually works out.

@sebmck @getify @marijnjh Seriously? There were no AST, no Acorn, no Esprima, no Estraverse, no ast-tools, no ESLint and so before Babel?

@rreverser @getify @marijnjh No there obviously were. You keep on talking about this invisible pipeline that Babel needs to integrate with

@sebmck @rreverser @marijnjh ex: i wanted to build a 2-way style formatter (inbound and outbound rules)

@sebmck @rreverser @marijnjh tool requires CST (which was not standardized)… but inbound could be babel, or outbound could be babel

@sebmck @rreverser @marijnjh example pipeline: let-er (my tool) -> esre (my tool) -> babel -> uglify

@sebmck @rreverser @marijnjh but for that pipeline to work, i need a parser on the front that has standard CST, and ...

@sebmck @rreverser @marijnjh the outbound pipe (to uglify or babel) needs to also support the same tree.