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Properly identify empty bounds in error message #19310

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Dec 21, 2023
Merged

Properly identify empty bounds in error message #19310

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2 changes: 1 addition & 1 deletion compiler/src/dotty/tools/dotc/reporting/Message.scala
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Original file line number Diff line number Diff line change
Expand Up @@ -147,7 +147,7 @@ object Message:
}

def addendum(cat: String, info: Type): String = info match {
case bounds @ TypeBounds(lo, hi) if bounds ne TypeBounds.empty =>
case bounds @ TypeBounds(lo, hi) if !(bounds =:= TypeBounds.empty) =>
if (lo eq hi) i" which is an alias of $lo"
else i" with $cat ${boundsStr(bounds)}"
case _ =>
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2 changes: 1 addition & 1 deletion tests/neg/i13780-1.check
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Expand Up @@ -5,7 +5,7 @@
| Required: h
|
| where: VS is a type in method foo with bounds <: Tuple
| h is a type in method foo with bounds
| h is a type in method foo
| t is a type in method foo with bounds <: Tuple
|
|
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