Fix #453, patternMatcher should use == #456
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This fix seems to unveil some other bug: now tree suceeds to pass Ycheck after PatMat, but fails after resolveSuper: DefDef that defines |
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Morale of the story: Alway, always test with -Yno-double-bindings. Not doing so will most likely leave you puzzled. -Yno-double-bindings was dropped when "twice" was removed, that's why the error was not observed directly and then caused a weird failure in TreeChecker. I'll do a separate PR that makes -Yno-double-bindings the default option for testing. |
This aligns with the "-" instead of CamelCase convention for the other command line options. Also, enable -Yno-double-bindings for dotc_core.
Also, added comments to the tpd select methods that explain how the data race could arise and how to avoid it.
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Rebased to master |
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LGTM |
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@odersky, thanks for investigating. |
DarkDimius
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Apr 9, 2015
Fix #453, patternMatcher should use ==
tgodzik
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Jul 3, 2025
Backport "Erased fields are not nullable" to 3.3 LTS
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