System output dependency missing

[guybedford]

I'm making some progress getting the TypeScript tests running for SystemJS builder. Currently this issue and systemjs/builder#262 are the blocking issues as far as I can tell.

For the following input source running against the currently nightly:

import 'jquery-cdn';
import '@empty';
import { dep } from "./second.js";
import './amd.js';
import './component.jsx!./jsx.js';

The output from TypeScript is:

System.register(['jquery-cdn', '@empty', './amd.js', './component.jsx!./jsx.js'], function(exports_1) {
    var __extends = (this && this.__extends) || function (d, b) {
        for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p];
        function __() { this.constructor = d; }
        d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
    };
    var p, test;
    return {
        setters:[
            function (_) {},
            function (_) {},
            function (_) {},
            function (_) {}],
        execute: function() {
            exports_1("p", p = 5);
            test = (function (_super) {
                __extends(test, _super);
                function test() {
                    _super.call(this);
                }
                return test;
            })(Object);
            exports_1("test", test);
        }
    }
});

Note how the ./second.js dependency is missing in the above.

Just let me know if there is anything further I can do to help, really appreciate the work to get these workflows running.

[vladima]

When processing the whole program TypeScript compiler will elide imports that are not used in as values. There is a compiler option isolatedModules to relax this behavior and suppress elision, it is used when files are compiled separately.Currently it used automatically when user calls transpile/transpilerModule functions and also it can be set via compiler API.

[guybedford]

Ah I see, ok sure so by just making sure dep is used I was able to fix this! Awesome, thanks.