driphter / clojure-monkey Goto Github PK

The current output file is over 6 MB (~700 KB gzipped). This is probably being caused by the usage of Closure's "simple" optimizations. Currently, we can't use the "advanced" optimization because it munges the names of the cljs.core functions we are trying to export. Calls to require also seem to get too mangled for things like Browserify to recognize.

Possible solutions to investigate:

• Use a macro to call goog.exportSymbol on everything in cljs.core (similar to mori)
• Compile with an externs file for external dependencies and wrap the output file with the necessary require calls.

Being able to restrict the usage of certain functions could be appropriate when using clojure-monkey to run code in a sandbox (eg: CodeCombat, 4clojure, etc.). This may be a bit outside the scope of the project, but it seems useful enough to warrant it's inclusion.

This could be done by:

1. Getting the Clojure AST with cljs.js/analyze-str
2. Walking the AST with clojure.walk looking for any usages of the restricted Var's identifier
3. Throwing an error when any restricted Var usage is found
4. Compiling the Clojure AST to Javascript code with cljs.compiler.api/emit