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scala now thinks every exception is polymorphic #7107

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scabug opened this issue Feb 9, 2013 · 4 comments
Closed

scala now thinks every exception is polymorphic #7107

scabug opened this issue Feb 9, 2013 · 4 comments
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@gkossakowski
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2.10.2-RC1

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@scabug
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scabug commented Feb 9, 2013

Introduced in fefe6ccc0c. This happens because you are treating "!isMonomorphicType" as if it meant "isPolymorphicType". In fact !isMonomorphicType means exactly nothing. Only positive answers carry any information.

% /scala/inst/scala-2.10.1-20130204-145353-e403e1a8dc/bin/scalac -Ylog:all -Ydebug -d /tmp /tmp/a.scala |& grep -i polymorphic
[log <no phase>] Encountered polymorphic exception `java.lang.CloneNotSupportedException` while parsing class file.
[log <no phase>] Encountered polymorphic exception `java.lang.InterruptedException` while parsing class file.
[log <no phase>] Encountered polymorphic exception `java.lang.Throwable` while parsing class file.
[log <no phase>] Encountered polymorphic exception `java.io.UnsupportedEncodingException` while parsing class file.
[log explicitouter(->erasure ->typer ->parser)] Encountered polymorphic exception `java.lang.ClassNotFoundException` while parsing class file.
[log explicitouter(->erasure ->typer ->parser)] Encountered polymorphic exception `java.lang.InstantiationException` while parsing class file.
[log explicitouter(->erasure ->typer ->parser)] Encountered polymorphic exception `java.lang.IllegalAccessException` while parsing class file.
[log explicitouter(->erasure ->typer ->parser)] Encountered polymorphic exception `java.lang.SecurityException` while parsing class file.
[log explicitouter(->erasure ->typer ->parser)] Encountered polymorphic exception `java.lang.NoSuchFieldException` while parsing class file.
[log explicitouter(->erasure ->typer ->parser)] Encountered polymorphic exception `java.lang.NoSuchMethodException` while parsing class file.
[log erasure(->posterasure ->parser)] Encountered polymorphic exception `java.lang.NumberFormatException` while parsing class file.
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scabug commented Feb 9, 2013

Imported From: https://issues.scala-lang.org/browse/SI-7107?orig=1
Reporter: @paulp

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scabug commented Feb 9, 2013

@gkossakowski said:
I'm ont it.

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scabug commented Feb 11, 2013

@gkossakowski said:
Raised priority to Critical because it looks serious. I don't think this is a blocker because this is not worse than 2.10.0 behavior.

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scabug commented Feb 26, 2013

@gkossakowski said:
Fixed by scala/scala#2117

@scabug scabug closed this as completed Feb 26, 2013
@scabug scabug added the critical label Apr 7, 2017
@scabug scabug added this to the 2.10.2-RC1 milestone Apr 7, 2017
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