[yorwba]

Do you know how these IDE features are currently implemented in editors like vim? Unless there is built-in support (e.g. ctags), most plug-ins that provide language-specific features do so by running an external tool, sometimes going so far as scraping the compiler output.

This means that on every single change, a new heavyweight process is created, communication happens over unspecified textual formats, and everything is likely to break with the next update because there is no stable interface.

JSON IPC with a continuously-running process using a well-specified protocol is a huge step up in comparison.

[jblow]

Just because the current way it's done is terrible, doesn't mean you should "upgrade" to a bad way instead of a good way.

[StavrosK]

What would a good way be? Why is having the code completion and parsing in a self-contained library a bad way? Or are you just opposed to using TCP instead of an ABI?