Fix bug in error message

odersky · odersky · commit 70535c80b6ef · 2019-06-20T13:54:39.000+02:00
Used to print:

&lt;none&gt; does not take parameters.
diff --git a/compiler/src/dotty/tools/dotc/reporting/diagnostic/messages.scala b/compiler/src/dotty/tools/dotc/reporting/diagnostic/messages.scala
@@ -1363,7 +1363,9 @@ object messages {
 
     val msg: String = {
       val more = if (tree.isInstanceOf[tpd.Apply]) " more" else ""
-      em"${methodSymbol.showLocated} does not take$more parameters"
+      val meth = methodSymbol
+      val methStr = if (meth.exists) methodSymbol.showLocated else "expression"
+      em"$methStr does not take$more parameters"
     }
 
     val explanation: String = {

Original file line number	Diff line number	Diff line change
`@@ -1363,7 +1363,9 @@ object messages {`
`1363`	`1363`
`1364`	`1364`	`val msg: String = {`
`1365`	`1365`	`val more = if (tree.isInstanceOf[tpd.Apply]) " more" else ""`
`1366`		`- em"${methodSymbol.showLocated} does not take$more parameters"`
	`1366`	`+ val meth = methodSymbol`
	`1367`	`+ val methStr = if (meth.exists) methodSymbol.showLocated else "expression"`
	`1368`	`+ em"$methStr does not take$more parameters"`
`1367`	`1369`	`}`
`1368`	`1370`
`1369`	`1371`	`val explanation: String = {`