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Discarded non-Unit value? #91

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michalrus opened this issue Oct 6, 2016 · 0 comments

michalrus commented Oct 6, 2016

Take this code:

var button = slot[Button]
button <~ On.click { button <~ hide }

… and compile it with -Ywarn-value-discard (useful flag!) using the 2.11.8 compiler.

It fails with:

[error] /home/m/Development/[…]/TestActivity.scala:19: discarded non-Unit value
[error]     button <~ On.click { button <~ show }
[error]                        ^
[error] one error found

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