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Nuance pure expr warning #9847

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scabug opened this issue Jul 6, 2016 · 2 comments
Closed

Nuance pure expr warning #9847

scabug opened this issue Jul 6, 2016 · 2 comments
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enhancement has PR
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2.12.0-RC1

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scabug commented Jul 6, 2016

The mysterious "you may be omitting necessary parentheses" clause to the indisputable "a pure expression does nothing in statement position" sounds like those ads that urge you to call a toll-free number about a problem you didn't know you had.

Possibly, the message is mostly a stand-in for -Ywarn-value-discard.

Also, please detect if there's even anything to parenthesize.

https://gitter.im/scala/scala?at=577d2aab5d23d99214e8694c
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scabug commented Jul 6, 2016

Imported From: https://issues.scala-lang.org/browse/SI-9847?orig=1
Reporter: @som-snytt
Affected Versions: 2.12.0-M5

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scabug commented Jul 6, 2016

@som-snytt said:
scala/scala#5266

@scabug scabug closed this as completed Aug 15, 2016
@scabug scabug added this to the 2.12.0-RC1 milestone Apr 7, 2017
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