README.md

sPack

simplePack: pack CommonJS modules into a bundle s.t. the module code can be analyzed statically.

Example

Example in tests/modules/commonjs/ is the code sample found in http://wiki.commonjs.org/wiki/Modules/1.1

$ ./bin/spack test/modules/commonjs/main.js
function _mod_math(module) {
    var exports = module.exports;
    exports.add = function () {
        var sum = 0, i = 0, args = arguments, l = args.length;
        while (i < l) {
            sum += args[i++];
        }
        return sum;
    };
    return module.exports;
}
function _mod_increment(module) {
    var exports = module.exports;
    var add = _mod_math({ exports: {} }).add;
    exports.increment = function (val) {
        return add(val, 1);
    };
    return module.exports;
}
function _mod_main(module) {
    var exports = module.exports;
    var inc = _mod_increment({ exports: {} }).increment;
    var a = 1;
    console.log(inc(a));
    module.id == 'program';
    return module.exports;
}
_mod_main({ exports: {} });

If there are no dependency cycles and no dynamic require calls, i.e. all the arguments to require calls are string literals, then the transformed code is semantically equivalent to the module code:

$ node test/modules/commonjs/main.js
2
$ ./bin/spack test/modules/commonjs/main.js | node
2