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-rw-r--r--src/compiler/scala/tools/nsc/typechecker/TypeDiagnostics.scala7
1 files changed, 5 insertions, 2 deletions
diff --git a/src/compiler/scala/tools/nsc/typechecker/TypeDiagnostics.scala b/src/compiler/scala/tools/nsc/typechecker/TypeDiagnostics.scala
index b628606897..36b9a65334 100644
--- a/src/compiler/scala/tools/nsc/typechecker/TypeDiagnostics.scala
+++ b/src/compiler/scala/tools/nsc/typechecker/TypeDiagnostics.scala
@@ -308,8 +308,11 @@ trait TypeDiagnostics {
!found.typeSymbol.isTypeParameterOrSkolem && !req.typeSymbol.isTypeParameterOrSkolem
if (easilyMistakable) {
- ";\n found : " + (foundWiden.nameAndArgsString + s" (in ${found.prefix.typeSymbol.fullNameString}) ") + explainAlias(found) +
- "\n required: " + (reqWiden.nameAndArgsString + s" (in ${req.prefix.typeSymbol.fullNameString}) ") + explainAlias(req)
+ val longestNameLength = foundWiden.nameAndArgsString.length max reqWiden.nameAndArgsString.length
+ val paddedFoundName = foundWiden.nameAndArgsString.padTo(longestNameLength, ' ')
+ val paddedReqName = reqWiden.nameAndArgsString.padTo(longestNameLength, ' ')
+ ";\n found : " + (paddedFoundName + s" (in ${found.prefix.typeSymbol.fullNameString}) ") + explainAlias(found) +
+ "\n required: " + (paddedReqName + s" (in ${req.prefix.typeSymbol.fullNameString}) ") + explainAlias(req)
} else {
def baseMessage = {
";\n found : " + found.toLongString + existentialContext(found) + explainAlias(found) +