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print type with symbolic name and two arguments as infix #4700

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scabug opened this issue Jun 16, 2011 · 2 comments
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print type with symbolic name and two arguments as infix #4700

scabug opened this issue Jun 16, 2011 · 2 comments
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enhancement has PR
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2.12.2

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@scabug
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scabug commented Jun 16, 2011

When it is unambiguous, a type with a symbolic name and two arguments should be printed as infix. This would add to the readability of errors related to HLists.

scala> trait :+:[A,B]                      
defined trait $colon$plus$colon

scala> implicitly[Int :+: Double]          
<console>:7: error: could not find implicit value for parameter e: :+:[Int,Double]
       implicitly[Int :+: Double]
                 ^

The error message would be more readable (especially for nested types) if it said:

error: could not find implicit value for parameter e: Int :+: Double
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scabug commented Jun 16, 2011

Imported From: https://issues.scala-lang.org/browse/SI-4700?orig=1
Reporter: @harrah
Assignee: @allisonhb

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scabug commented Feb 16, 2017

@adriaanm said:
scala/scala#5589

@scabug scabug closed this as completed Feb 16, 2017
@scabug scabug added this to the 2.12.2 milestone Apr 7, 2017
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