如何在Haxe中检索模块中所有类的列表？ （又名：助手班）

Question

Considering a Haxe file defines a series of classes like so:

import flash.display.MovieClip;
import flash.display.Sprite;
import haxe.unit.TestCase;

class MainTest extends Sprite { 
    public var testcase:Array<Class<TestCase>> = ???;
}

class TestSprite extends TestCase {
    function testBasic() {
        var sprite = new Sprite();
        sprite.x = 0;
        assertEquals(sprite.x, 0);
    }
}

class TestMovieClip extends TestCase {
    function testMovieClip() {
        var mc = new MovieClip();
        mc.nextFrame();
        assertEquals(mc.currentFrame, 2);
    }
}

Is there a way to obtain a list of all the helper classes (ex: TestSprite and TestMovieClip )? Preferably at runtime, but a macro that would return an Array<Class<TestCase>> would work fine too.

Answer 1

I have a small macro helper library called compiletime that can get all classes in a package, or all classes that extend a certain class.

haxelib install compiletime

And then get classes either by base class or by package:

var testcases = CompileTime.getAllClasses("my.package");
var testcases = CompileTime.getAllClasses(TestCase);
var testcases = CompileTime.getAllClasses("my.package",TestCase); // Both!

Now, that is getting them by package, not by module. Getting it by module might work, I'm not sure off the top of my head. But if you were to edit this part of the code:

https://github.com/jasononeil/compiletime/blob/master/src/CompileTime.hx#L208

And change it to also support getting by module, and send me a pull request, I would most certainly merge it :)

Good luck!