Hide local or synthetic symbols in documentSymbol

Author: Duhemm

language-server/src/dotty/tools/languageserver/DottyLanguageServer.scala

@@ -412,8 +412,12 @@ class DottyLanguageServer extends LanguageServer
     implicit val ctx = driver.currentCtx
 
     val uriTrees = driver.openedTrees(uri)
+    val predicate = (tree: NameTree) => {
+      val sym = tree.symbol
+      sym.exists && !sym.isLocal && !sym.isPrimaryConstructor && !sym.is(Synthetic)
+    }
 
-    val defs = Interactive.namedTrees(uriTrees, includeReferences = false, _ => true)
+    val defs = Interactive.namedTrees(uriTrees, includeReferences = false, predicate)
     (for {
       d <- defs if !isWorksheetWrapper(d)
       info <- symbolInfo(d.tree.symbol, d.namePos, positionMapperFor(d.source))

language-server/test/dotty/tools/languageserver/DocumentSymbolTest.scala

@@ -38,4 +38,10 @@ class DocumentSymbolTest {
       .documentSymbol(m1, (m1 to m2).symInfo("Foo", SymbolKind.Module),
                           (m3 to m4).symInfo("Foo", SymbolKind.Class))
   }
+
+  @Test def documentSymbolSynthetic: Unit = {
+    code"""case class ${m1}Foo${m2}(${m3}x${m4}: Int)""".withSource
+      .documentSymbol(m1, (m1 to m2).symInfo("Foo", SymbolKind.Class),
+                          (m3 to m4).symInfo("x", SymbolKind.Field, "Foo"))
+  }
 }