dart #import weirdness in dart editor

Question

So I have two dart files -- One defines the entry-point Main() and the other is a class I've created. The Main file #imports dart:html and #sources my class. My class uses the dart:html namespace, and Dart Editor will display errors if I don't #import it. However, my class will fail to compile if I #import dart:html since the Main file already does, but compiles fine without the #import. Is there a way to appease the dart editor, or is this a known issue with how the dart editor resolves namespaces?

Lars Tackmann Lars Tackmann · Accepted Answer · 2012-06-19T18:31:15

You should only do the import once and then source your program files from your main file. Something like this:

main.dart

#import("dart:html");
#source("program.dart");

main() {
   var program = new Program();
   program.run();
}

program.dart

class Program {
   run() {
       var elm = new Element.html("<p>hello world</p>");
       document.body.nodes.add(elm);
   }
}

should definitely work.

dart #import weirdness in dart editor

1 Answers