Fix recent regression with import hooks in blocks #1369
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alexarchambault
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Jul 18, 2023
Just stumbled upon that while working on https://github.com/com-lihaoyi/Ammonite/pull/1369…
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… or whitespace (#2686) This is basically a port of the following fix in the Ammonite repo com-lihaoyi/Ammonite#1361. There were some changes when the logic was first ported from Ammonite to Mill, resulting in a much smaller code change than was necessary in the Ammonite repo There are two related follow up PRs that AFAICT do not apply to Mill: com-lihaoyi/Ammonite#1363 and com-lihaoyi/Ammonite#1369. Both have to do with the special handling of multi-statement top-level-blocks `{...}`, that is a thing in the Ammonite REPL (to allow multiple top-level declarations to be entered into the REPL before submitting it) but doesn't apply to Mill scripts. I have updated the integration tests to include a bunch of random comments and imports to reproduce the problem causing the tests to fail, and verified the fix causes the tests to pass. Also this caused a previously passing test to fail (`2-custom-build-logic`), which on inspection appears like it was asserting the wrong thing, so I fixed the assert Fixes #2681
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This fixes a regression introduced in #1361. This makes the following work again as expected:
Before the changes here, in Scala 2.x, one gets an error like