Use mapconserve in one case

smarter · smarter · commit 4a3113f2f96a · 2020-01-06T17:15:45.000+01:00
diff --git a/compiler/src/dotty/tools/dotc/typer/Typer.scala b/compiler/src/dotty/tools/dotc/typer/Typer.scala
@@ -1555,7 +1555,7 @@ class Typer extends Namer
         assert(ctx.reporter.errorsReported)
         tree.withType(defn.AnyType)
     val trees1 = tree.trees.mapconserve(typed(_, pt)(nestedCtx))
-      .map(ensureValueTypeOrWildcard)
+      .mapconserve(ensureValueTypeOrWildcard)
     assignType(cpy.Alternative(tree)(trees1), trees1)
   }
 

Original file line number	Diff line number	Diff line change
`@@ -1555,7 +1555,7 @@ class Typer extends Namer`
`1555`	`1555`	`assert(ctx.reporter.errorsReported)`
`1556`	`1556`	`tree.withType(defn.AnyType)`
`1557`	`1557`	`val trees1 = tree.trees.mapconserve(typed(_, pt)(nestedCtx))`
`1558`		`- .map(ensureValueTypeOrWildcard)`
	`1558`	`+ .mapconserve(ensureValueTypeOrWildcard)`
`1559`	`1559`	`assignType(cpy.Alternative(tree)(trees1), trees1)`
`1560`	`1560`	`}`
`1561`	`1561`