port to cljs - wip

[shaunlebron]

This isn't complete! Just wanted to start it for anyone wanting to take the baton. (context)

changes:

• renamed extension from .clj to .cljc (to mark cross-compatibility with clojure and clojurescript)
• added parseInt and exception wrappers to handle platform differences
• commented out the main function and test fixture runner for now (can't run in browser)
• added (run-tests) at end of file
• replaced with-test with :test (fn [] ...) (not available in cljs)
• create test/test.cljc for running tests on node or jvm (file loading for test fixtures will be different)
• create cli.clj for the CLI command for server-side running (no reason to port this to cljs)
• export the main core functions for use in the browser (should work fine as is)
• fix the integer handling (see failing tests below)

running tests:

• brew install clojure (new official clojure cli tool)
• clj -m wah.core (run clojure tests)
• clj -m cljs.main -c wah.core --repl (run cljs tests, check command line output, not browser)

ClojureScript tests are failing because 1 is interpreted as a float:

Testing wah.core

FAIL in (maybe-expand-number) (cljs/test.js:433:14)
expected: (= (maybe-expand-number 1) (quote (i32.const 1)))
  actual: (not (= (f64.const 1) (i32.const 1)))

FAIL in (wah-func-to-wasm) (cljs/test.js:433:14)
expected: (= (quote (i32.add_s (i32.const 0) (i32.const 0))) (wah-func-to-wasm {} (quote (0 + 0))))
  actual: (not (= (i32.add_s (i32.const 0) (i32.const 0)) (f64.add (f64.const 0) (f64.const 0))))

FAIL in (wah-func-to-wasm) (cljs/test.js:433:14)
expected: (= (quote (i32.add_s (i32.const 0) (i32.add_s (i32.const 0) (i32.const 1)))) (wah-func-to-wasm {} (quote (0 + (0 + 1)))))
  actual: (not (= (i32.add_s (i32.const 0) (i32.add_s (i32.const 0) (i32.const 1))) (f64.add (f64.const 0) (f64.add (f64.const 0) (f64.const 1)))))

FAIL in (wah-func-to-wasm) (cljs/test.js:433:14)
expected: (= (quote i32) (get (meta (second (wah-func-to-wasm {} (quote (0 + 0))))) :type))
  actual: (not (= i32 f64))

FAIL in (wah-func-to-wasm) (cljs/test.js:433:14)
expected: (= (quote i32) (get (meta (second (wah-func-to-wasm {} (quote (0 + 0))))) :type))
  actual: (not (= i32 f64))

Ran 16 tests containing 43 assertions.
5 failures, 0 errors.