From e4780e574f9613346e6908f7947f40a58327e376 Mon Sep 17 00:00:00 2001
From: Martin Odersky <odersky@gmail.com>
Date: Sat, 1 Apr 2017 17:21:39 +0200
Subject: Keep package member names mangled

Once we start using unencoded operators internally, we will face the problem
that one cannot decode realiably a class file filename. We therefore turn
things around, keeping members of package scopes in mangled and encoded form.
This is compensated by (1) mangling names for lookup of such members and
(2) when unpickling from Scala 2 info or Tasty, comparing mangled names when
matching a read class or module object against a root.
---
 compiler/src/dotty/tools/dotc/core/SymDenotations.scala | 13 ++++++++++---
 1 file changed, 10 insertions(+), 3 deletions(-)

(limited to 'compiler/src/dotty/tools/dotc/core/SymDenotations.scala')

diff --git a/compiler/src/dotty/tools/dotc/core/SymDenotations.scala b/compiler/src/dotty/tools/dotc/core/SymDenotations.scala
index 1c7206533..b8cd7bb18 100644
--- a/compiler/src/dotty/tools/dotc/core/SymDenotations.scala
+++ b/compiler/src/dotty/tools/dotc/core/SymDenotations.scala
@@ -107,7 +107,7 @@ object SymDenotations {
   class SymDenotation private[SymDenotations] (
     symbol: Symbol,
     ownerIfExists: Symbol,
-    final val name: Name,
+    initName: Name,
     initFlags: FlagSet,
     initInfo: Type,
     initPrivateWithin: Symbol = NoSymbol) extends SingleDenotation(symbol) {
@@ -125,11 +125,18 @@ object SymDenotations {
 
     // ------ Getting and setting fields -----------------------------
 
+    private[this] var myName = initName
     private[this] var myFlags: FlagSet = adaptFlags(initFlags)
     private[this] var myInfo: Type = initInfo
     private[this] var myPrivateWithin: Symbol = initPrivateWithin
     private[this] var myAnnotations: List[Annotation] = Nil
 
+    /** The name of the symbol */
+    def name = myName
+
+    /** Update the name; only called when unpickling top-level classes */
+    def name_=(n: Name) = myName = n
+
     /** The owner of the symbol; overridden in NoDenotation */
     def owner: Symbol = ownerIfExists
 
@@ -1208,12 +1215,12 @@ object SymDenotations {
   class ClassDenotation private[SymDenotations] (
     symbol: Symbol,
     ownerIfExists: Symbol,
-    name: Name,
+    initName: Name,
     initFlags: FlagSet,
     initInfo: Type,
     initPrivateWithin: Symbol,
     initRunId: RunId)
-    extends SymDenotation(symbol, ownerIfExists, name, initFlags, initInfo, initPrivateWithin) {
+    extends SymDenotation(symbol, ownerIfExists, initName, initFlags, initInfo, initPrivateWithin) {
 
     import util.LRUCache
 
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