This is my research notebook. I'm an OSX / iOS indie developer. After 8 years of Objective-C I really enjoy Swift nowadays. Trying to publish all my research on Development, Swift & other technologies here.

Thu, 2 Jul 2015 #

Debugging advanced compilation errors in ClojureScript

Just a quick note so I can easily look this up again and maybe help others in a similar situation. When you're working on a ClojureScript app and there're errors in advanced compilation mode which do not appear in the dev environment, tracking down these bugs can be quite daunting.

Thankfully, there's a compiler setting which tries to emit readable names during compilation: :pseudo-names true. The documentation says:

With :advanced mode optimizations, determines whether readable names are emitted. This can be useful when debugging issues in the optimized JavaScript and can aid in finding missing externs. Defaults to false.

Together with :pretty-print true this helps a lot in finding out just where the bug you're seeing originated.

An Example:

    :optimizations :advanced
    :pretty-print true
    :pseudo-names true

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