Fix regression introduced by 5751763 #5723
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dragos
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Thank you! Can you think of a way to write a regression test for this? |
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Unfortunately I don't think it's easy. Here's what needs to happen:
It seems that The tricky part to write a test for this is the timing (the source one has to be loaded before), and the fact that there must be some binaries as well. It should be a presentation compiler test as well... If you have some suggestions on how to do it, I'd give it a try, but it seems pretty tough. |
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Great description, and yes -- sounds tricky enough to test that we can skip it. Let's make sure your explanation is preserved by including it in the commit message, with maybe a short version added to the comment in the code. |
enterClass/Module may return an existing symbol, but in 5751763 the return value was dropped leading to assertion failures. This may show up only in the presentation compiler, which explains why it went unnoticed. Here's what needs to happen: - a class with a companion is loaded by the IDE, but the class name is different than the file name. This is from source - the same class and companion object exist as binary, and are loaded from classfiles when the package is completed (since they have different names than the source file, the classpath abstraction will only "know" that there is a classfile, and no corresponding source file) It seems that companionClass always prefers to return the companion defined in a source file, but if this assertion is called from the code path that tries to load the binary version, the newly created module will not match.
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Should I rebuild, or we assume the build was successful (I only changed the comment and commit message)? |
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/rebuild - this happens from time to time.. |
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it's scala/scala-dev#277 |
lrytz
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SethTisue
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only trivial merge conflict involving a method renaming * d1d700e - (origin/HEAD, origin/2.12.x) Merge pull request scala#5754 from Philippus/issue/html-tag-in-hover (2 days ago) <Lukas Rytz> |\ | * cf64718 - pattern for entitylink was too narrow, cleaned up the tests (3 days ago) <Philippus Baalman> * | f771395 - Merge pull request scala#5671 from retronym/topic/stubby-2 (3 days ago) <Lukas Rytz> |\ \ | * | ad13063 - Remove non-essential fix for stub symbol failure (4 days ago) <Jason Zaugg> | * | 7f2d1fa - Avoid forcing info transforms of primitive methods (2 weeks ago) <Jason Zaugg> | * | 37a0eb7 - Avoid stub symbol related crash in backend (2 weeks ago) <Jason Zaugg> * | | 96a7617 - Merge pull request scala#5622 from edmundnoble/extra-errs (4 days ago) <Adriaan Moors> |\ \ \ | * | | 466e52b - Match error lengths (4 weeks ago) <Edmund Noble> | * | | d1fc983 - Improved error messages for identically named, differently prefixed types (9 weeks ago) <Edmund Noble> | / / * | | f2e05c2 - Merge pull request scala#5728 from Philippus/issue/html-tag-in-hover (4 days ago) <Lukas Rytz> |\ \ \ | | |/ | |/| | * | e3c5df8 - added missing Inline matches to inlineToStr so it is now exhaustive scala.xml.XML.loadString(tag).text will remove all html tags inside the HtmlTag (9 days ago) <Philippus Baalman> * | | 920bc4e - Merge pull request scala#5743 from som-snytt/issue/10207-bad-update (7 days ago) <Lukas Rytz> |\ \ \ | * | | 094f7f9 - SI-10207 Error before update conversion (8 days ago) <Som Snytt> * | | | 1b4d36f - Merge pull request scala#5746 from paulp/pr/partest (7 days ago) <Lukas Rytz> |\ \ \ \ | |/ / / |/| | | | * | | eac00e1 - Add partest paths to the list of watched sources. (8 days ago) <Paul Phillips> |/ / / * | | 5f1a638 - Merge pull request scala#5732 from retronym/topic/build-info-malarkey (10 days ago) <Adriaan Moors> |\ \ \ | * | | 5e9acac - More predictable performance of SBT build startup, reload (11 days ago) <Jason Zaugg> | / / * | | 759a7b7 - Merge pull request scala#5735 from SethTisue/sd-313 (10 days ago) <Adriaan Moors> |\ \ \ | * | | ed4ddf5 - increase timeouts on some sys.process tests (11 days ago) <Seth Tisue> * | | | e2aaf2c - Merge pull request scala#5723 from dragos/issue/regression-assert-ide (11 days ago) <Lukas Rytz> |\ \ \ \ | |/ / / |/| | | | * | | e5c957e - Fix regression in 5751763 (12 days ago) <Iulian Dragos> * | | | f174bfb - Merge pull request scala#5731 from janekdb/issue/scalaGH-644/fix-spec-latex-rendering (11 days ago) <Seth Tisue> |\ \ \ \ | * | | | ba4c6d4 - scalaGH-644: Remove static html styling of spec code blocks (11 days ago) <Janek Bogucki> |/ / / / * | | | 8e40bef - Merge pull request scala#5729 from scala/revert-5658-topic/hashhash (12 days ago) <Adriaan Moors> |\ \ \ \ | |_|/ / |/| | | | * | | 86cd70f - (origin/revert-5658-topic/hashhash) Revert "Fix erasure of the qualifier of ##" (12 days ago) <Adriaan Moors> |/ / / * | | cbf7daa - Merge pull request scala#5681 from Philippus/issue/9704 (13 days ago) <Lukas Rytz> |\ \ \ | * | | b8a8ac1 - moved Pattern and TagsNotToClose to a HtmlTag companion object (13 days ago) <Philippus Baalman> | * | | a019082 - SI-9704 don't add a closed HtmlTag if it is already closed (4 weeks ago) <Philippus Baalman> | / / * | | effde0c - Merge pull request scala#5726 from scala/revert-5629-issue/10120-quote-err (13 days ago) <Adriaan Moors> |\ \ \ | * | | d60f6e3 - (origin/revert-5629-issue/10120-quote-err) Revert "SI-10133 Require escaped single quote char lit" (13 days ago) <Adriaan Moors> |/ / / * | | a8c4a54 - Merge pull request scala#5663 from gourlaysama/ticket/sd-256-enable-repl-colors-unix-2 (13 days ago) <Adriaan Moors> |\ \ \ | * | | 6411170 - SD-256 enable colored output by default on unix (13 days ago) <Antoine Gourlay> * | | | c96a977 - Merge pull request scala#5658 from retronym/topic/hashhash (13 days ago) <Lukas Rytz> |\ \ \ \ | |/ / / |/| | | | * | | f85c62e - Fix erasure of the qualifier of ## (6 weeks ago) <Jason Zaugg> | / / * | | 76bfb9e - Merge pull request scala#5708 from szeiger/issue/si10194 (13 days ago) <Lukas Rytz> |\ \ \ | * | | 1d22ee4 - SI-10194: Fix abstract type resolution for overloaded HOFs (13 days ago) <Stefan Zeiger> | / / * | | dabec1a - Merge pull request scala#5700 from retronym/ticket/10154-refactor (13 days ago) <Lukas Rytz> |\ \ \ | * | | 06eee79 - Refactor implementation of lookupCompanion (2 weeks ago) <Jason Zaugg> | / / * | | 2f1e0c2 - Merge pull request scala#5704 from som-snytt/issue/10190-elide-string (13 days ago) <Lukas Rytz> |\ \ \ | * | | 6fb3825 - SI-10190 Elide string to empty instead of null (3 weeks ago) <Som Snytt> | / / * | | 13f7b2a - Merge pull request scala#5640 from optimizely/repl-import-handler (2 weeks ago) <Adriaan Moors> |\ \ \ | * | | aa7e335 - Fix ImportHandler's reporting of importedNames and importedSymbols (8 weeks ago) <Hao Xia> | * | | c89d821 - Fix SIOOBE in Name#pos for substrings of length 1 (8 weeks ago) <Jason Zaugg> | / / * | | 023a96a - Merge pull request scala#5629 from som-snytt/issue/10120-quote-err (2 weeks ago) <Adriaan Moors> |\ \ \ | * | | 05cc3e2 - SI-10120 ReplReporter handles message indent (7 weeks ago) <Som Snytt> | * | | 939abf1 - SI-10120 Extra advice on unclosed char literal (8 weeks ago) <Som Snytt> | * | | 855492c - SI-10133 Require escaped single quote char lit (8 weeks ago) <Som Snytt> | / / * | | e21ab42 - Merge pull request scala#5660 from som-snytt/issue/9464-spec (2 weeks ago) <Adriaan Moors> |\ \ \ | * | | a6dcceb - SI-9464 Clarify spec on no final trait (6 weeks ago) <Som Snytt> | / / * | | e87a436 - Merge pull request scala#5659 from retronym/ticket/10026 (2 weeks ago) <Adriaan Moors> |\ \ \ | |/ / |/| | | * | 777a0e5 - SI-10026 Fix endless cycle in runtime reflection (2 weeks ago) <Jason Zaugg> | |/ * | 23e5ed9 - Merge pull request scala#5707 from retronym/topic/java9-prepare (2 weeks ago) <Lukas Rytz> |\ \ | * | 96e8e97 - Workaround bug in Scala runtime reflection on JDK 9 (3 weeks ago) <Jason Zaugg> | * | fe2d9a4 - Avoid ambiguous overload on JDK 9 (3 weeks ago) <Jason Zaugg> | * | 6bba8f7 - Adapt to change in ClassLoader in JDK 9 (3 weeks ago) <Jason Zaugg> | * | 8136057 - Bump scala-asm version (3 weeks ago) <Jason Zaugg> | / * | cad3c3d - Merge pull request scala#5709 from adriaanm/sam_wild_bound (2 weeks ago) <Lukas Rytz> |\ \ | * | c396e96 - Ignore BoundedWildcardType in erasure type map (2 weeks ago) <Adriaan Moors> * | | 3e9df41 - Merge pull request scala#5711 from retronym/ticket/jrt (2 weeks ago) <Lukas Rytz> |\ \ \ | * | | 09c7edc - Faster and simpler Java 9 classpath implementation (2 weeks ago) <Jason Zaugg> | / / * | | 7b9d3cc - Merge pull request scala#5713 from janekdb/issue/scalaGH-644/sync-jekyll-README-to-Gemfile (2 weeks ago) <Lukas Rytz> |\ \ \ | * | | 5e5ec9a - scalaGH-644: Expand note regarding Jekyll versions (2 weeks ago) <Janek Bogucki> | / / * | | 144f7e0 - Merge pull request scala#5714 from dragos/issue/usage-sterr-SI-10178 (2 weeks ago) <Lukas Rytz> |\ \ \ | |/ / |/| | | * | 640c85e - SI-10178 Route reporter.echo to stdout (2 weeks ago) <Iulian Dragos> | / * | 2fec08b - Merge pull request scala#5717 from som-snytt/issue/10148-followup (2 weeks ago) <Adriaan Moors> |\ \ | |/ |/| | * f3d271b - SI-10148 Accept verbose zero (2 weeks ago) <Som Snytt> * 147e5dd - Merge pull request scala#5716 from adriaanm/i296 (2 weeks ago) <Jason Zaugg> * 12437a0 - Ensure ordering for args to `choose` in DurationTest (2 weeks ago) <Adriaan Moors>
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enterClass/Module may return an existing symbol, but in 5751763 the return value was dropped leading to assertion failures. This shows up only in the presentation compiler, which explains why it went unnoticed.