IO library doesn't work in 64-bit version for Windows

[DartBot]

This issue was originally filed by ivan.su...@gmail.com

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What steps will reproduce the problem?

1. Create sample app in dart folder.
2. Add #import('../libraries/io/io.dart');
3. try to create any variable with type from this library. E.g. something like this:

class socket_listener{
  Socket testSocket;
  ...
}

What is the expected output? What do you see instead?
 Expected:
  Library became visible in the Libraries tab.
  testSocket can be used further

 See:
  Library is not available in the libraries view
  Socket type is unknown in the editor
  If I'm openning io.dart file I'm getting error in
    buffer_list.dart file (no such type "ByteArray")

What version of the product are you using? On what operating system?
  I was using both stable and then latest one (v 0.1.0.201202170045 build 4349) for Windows 64-bits.

[sethladd]

Sounds like this developer is trying to access the dart:io libraries from within a Dart program in the Dart Editor.

I tried this script on Editor 4337 on Mac OS X. I do not have a Windows 64 bit machine.

#import('dart:io');
void main() {
  Socket socket;
}

The script ran without apparent error.

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Added Area-Editor, Triaged labels.

[DartBot]

This comment was originally written by ivan.susl...@gmail.com

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Actually, yes, that's true. Everything works if 'dart:io' library comes along.

I've end up with this issue first time when trying to link two libraries 'dart:dom' and 'dart:io' in one package. If I would do so, it brings error: "duplicate top-level definition 'File'", so, I've tried to make direct link to io.dart file.

Is it so, that I can't use next imports together?

#import('dart:io');
#import('dart:dom');

Actually, one more stupid question. Why following defenition ends up with the error:

//-----code starts----
#import('dart:io');

class SocketTest {
  Socket echoSocket;
    
  SocketTest() {
    try {
      echoSocket = new Socket('localhost', 1);
      ...
    } catch (...) {
      ....
    }
  }
}
//-----code ends----

Error:
Generating Javascript...
error: File not found: dart:io
SocketTest.dart:8:24: error: cannot find type Socket
      echoSocket = new Socket('localhost', 1);
                       ^^^^^^
SocketTest.dart:8:24: error: cannot find type Socket
      echoSocket = new Socket('localhost', 1);
                       ^^^^^^
SocketTest.dart:8:20: error: member lookup failed for "Object"
      echoSocket = new Socket('localhost', 1);
                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
compilation failed with 4 errors
Compilation failed

[keertip]

Marked this as being blocked by #1736.

[danrubel]

dart:io is a VM library while dart:dom and dart:html are browser librares, so you cannot use dart:io with either dart:dom or dart:html in the same Dart application today.

There very well may be a dart:io library for browser based apps in the future, but not today.

If I've missed something here, please feel free to reopen and elaborate further.

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Added WontFix label.

[DartBot]

This comment was originally written by ivan.sus...@gmail.com

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Thanks, that's clear.
However, there was another question in my previous comment.

Why definition echoSocket = new Socket('address', port);

generates error:
Generating Javascript...
error: File not found: dart:io
SocketTest.dart:8:24: error: cannot find type Socket
      echoSocket = new Socket('localhost', 1);
                       ^^^^^^
SocketTest.dart:8:24: error: cannot find type Socket
      echoSocket = new Socket('localhost', 1);
                       ^^^^^^
SocketTest.dart:8:20: error: member lookup failed for "Object"
      echoSocket = new Socket('localhost', 1);
                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
compilation failed with 4 errors
Compilation failed

[danrubel]

Removed Area-Editor label.
Added Area-IO, Triaged labels.

[madsager]

The dart:io library is only available on the standalone VM. In comment 2 it seems that you are attempting to generate JavaScript code from a Dart script using dart:io? That is not possible.

dart:io is a server-side library only available on the standalone VM. You need to create a 'script' solution in the Editor and specify the VM binary to use for running it.

Hope this helps.

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Added Invalid label.

[kevmoo]

Removed Area-IO label.
Added Area-Library, Library-IO labels.
Marked this as being blocked by #1736.
Unmarked this as being blocked by #1736.