Exhausted heap space

[Peter Jakobs]

Currently running into this Exception: Exhausted heap space

I wrote two Transformer if I run each one single everything runs fine, but if I run both in a Transformgroup it fails with "Exhausted heap space" at some point.

Is there a solution for this, or is there something wrong with my code?

[Bob Nystrom]

On Wed, Jul 16, 2014 at 6:13 PM, Peter Jakobs <p4j...@gmail.com> wrote:

Is there a solution for this, or is there something wrong with my code?

The basic follow-up question is, is your transformer allocating a lot of memory? :)

You should be able to run multiple transformers in a group without any problems, and we have other transformers that do just that.

- bob

[Peter Jakobs]

I combined the two transformers into one.. and it works now...

Shameless plug: Is there a way that Transformers defined in the pubspec (of one library) can transform libraries of other packages too (with "pub build")?

- Peter

[Bob Nystrom]

On Thu, Jul 17, 2014 at 4:05 PM, Peter Jakobs <p4j...@gmail.com> wrote:

Is there a way that Transformers defined in the pubspec (of one library) can transform libraries of other packages too (with "pub build")?

A transformer can read assets as secondary inputs from any package it likes. However, the primary inputs and any assets it outputs have to be in the same package where the transformer is specified.

The reason is that each package has its own independent set of transformer phases. If transformers could write outputs to other packages, it's impossible to determine which phase in the receiving package should see those outputs.

- bob

[Peter Jakobs]

Okay, so I just add the transformer to each package that needs transforming.

But it still does the wrong thing. The secondary inputs gets transformed but the transformed code does not land in the "build" folder (only the untransformed code).

"pub build" for this library:

name: harmony3d_example

transformers:

- mist <- gets applied and transformed code appears that way in the „build“-folder

used packages:

name: harmony3d

transformers:

- mist <- gets applied but only untransformed code appear in the „build“-folder

name: mist

transformers:

- mist/src/build/mist_static_transform <- gets applied and transformed code appears that way in the „build“-folder

Also, is there a way to do transformation only on "pub build"?

 

[Bob Nystrom]

On Sat, Jul 19, 2014 at 10:51 AM, Peter Jakobs <p4j...@gmail.com> wrote:

The secondary inputs gets transformed but the transformed code does not land in the "build" folder (only the untransformed code).

How do you know they get transformed? Just from the logs? What outputs does it produce?

 

Also, is there a way to do transformation only on "pub build"?

I'm not sure what you mean by this. Can you give me some more details?

- bob

[Arron Washington]

https://www.dartlang.org/tools/pub/transformers/#define-asPlugin

According to the documentation, by default the mode is 'debug' when `pub serve` is executing a transformer and 'release' when `pub build` is running a transformer.

[Günter Zöchbauer]

It was mentioned a few times in some issues that (some?) transformers in "pub serve" should only be executed when JavaScript source is requested but not when a request is made from Dartium but I couldn't find the issues.

 

- bob

[Günter Zöchbauer]

I found one: https://code.google.com/p/dart/issues/detail?id=19719#c22

[Peter Jakobs]

So my problem is, the BarbackSettings passend to my transformer is always holds the value for debug and not for release. Does not matter if its pub build oder pub serve 

class MyTransform extends Transformer {
  final BarbackSettings _settings;

  MyTransform.asPlugin(this._settings);

[Bob Nystrom]

On Wed, Aug 6, 2014 at 1:22 PM, Peter Jakobs <p4j...@gmail.com> wrote:

So my problem is, the BarbackSettings passend to my transformer is always holds the value for debug and not for release. Does not matter if its pub build oder pub serve 

Do you see the same thing if you pass in the mode explicitly, like:

$ pub serve --mode release

$ pub build --mode something_crazy

Etc.?

- bob

[Peter Jakobs]

This works fine! Can we please get that integrated in the editor?

- Peter 

[Bob Nystrom]

On Sun, Aug 10, 2014 at 7:07 AM, Peter Jakobs <p4j...@gmail.com> wrote:

This works fine! Can we please get that integrated in the editor?

Can you see if there's a bug for this? If not, please file one.

Thanks!

- bob

[Peter Jakobs]

Could not find a bug, so here it is:

dartbug.com/20481