Pub transformers running on own package get modified package: URIs

[blois]

When a pub transformer is running on it's own package the Dart source files that it loads have package: imports changed to /package/.

The conversion from package: to /package/ should be an internal detail- if required for isolate loading then assets fetched via transform.readAsInputString should use a different transfer mechanism.

These imports leak when the transformer modifies the source code- if the transformer does not remove the /package/ then this propagates down the chain.

[nex3]

We could probably make [transform.readAsInputString] avoid this, but it would likely be a lot of work and further degrade the "pub serve"/"pub build" startup time. The "/package/" workaround will go away when issue #12474 is fixed, so I'm going to mark this blocked.

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Marked this as being blocked by #12474.

[kevmoo]

Can this be addressed now?

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Set owner to @nex3.

[nex3]

I believe this is no longer an issue.

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Added Fixed label.

[DartBot]

This issue has been moved to dart-lang/pub#890.