cpp preprocessor for JS source

gistfile1.js

/*
$ cpp -P -nostdinc test.js bundle.js

# OR

$ cpp -P -nostdinc test.js

# To give parameters, use -D, like this:

$ cpp -P -nostdinc -D DEV test.js

# For source code like this:
*/

#if defined DEV
#define ASSERT(x) console.assert(x)
#else
#define ASSERT(x)
#endif

#define SOME_CONST 5

var Promise = require('bluebird');

ASSERT(1 === 1);

Promise.cast([1, 2, 3, SOME_CONST]).reduce(function(_, i) {
    console.log('Launching ' + i);
    return Promise.delay(Math.floor(Math.random() * 1000)).then(function() {
        console.log('Executing ' + i);
    });
}, 0);