Jacob MacDonald

I would be in favor of `-O3` by default for release mode, and `-O1` for debug mode.

I think it would be good to clarify more concretely what we mean by "unsafe" for `-O3`. From what I understand it basically comes down to undefined behavior when throwing...

I can't remember if we reached a conclusion for this in our offline talks? cc @sigmundch

Semi-related but I am changing the default dev-mode flags to be just `--enable-asserts`. If we do change the default optimization level we should do that only in release mode. (see...

We have considered in the past a way for a package to say it "exports" some other packages builder, which is what you need to actually be able to solve...

It sounds like your build did not actually have any performance information from that stack trace... possibly you tried to load it before the first build completed? (if that is...

Yes, it looks like it fails to write the performance logs. These logs do have very fine grained performance information, so they could potentially get very large on a large...

There is no requirement to have a `build.yaml` file at all. What specifically do you want to create one for? There are a lot of potential uses so it is...

If you want `.map` files for dart2js then yes you would have to. Docs for common use cases live at https://github.com/dart-lang/build/blob/master/docs/faq.md.

We would need some more information to look into this, can you provide full reproduction instructions? An example project, and which files you are editing? My hunch would be you...