Cleanups involving name encoding and decoding.

Author: odersky

src/attic/scala/tools/nsc/models/SemanticTokens.scala

@@ -14,7 +14,6 @@ import scala.tools.nsc.Global
 import scala.tools.nsc.symtab.{Flags, Names}
 import scala.tools.nsc.symtab.Flags.DEFERRED
 import scala.tools.nsc.util.{BatchSourceFile, SourceFile}
-import scala.reflect.NameTransformer
 
 class SemanticTokens(val compiler: Global) {
   import compiler._
@@ -160,7 +159,7 @@ class SemanticTokens(val compiler: Global) {
       else new Info(symbol)
 
     abstract class Semantic(val symbol: Symbol) extends Actual {
-      val name = NameTransformer.decode(symbol.name.toString).trim()
+      val name = symbol.name.decode.toString.trim
       assert(symbol != NoSymbol)
       def myOuter = Process.this
 
@@ -503,7 +502,7 @@ class SemanticTokens(val compiler: Global) {
       //Thread.dumpStack()
     }
     else if (term != NoSymbol) {
-      val name = NameTransformer.decode(term.name.toString).trim()
+      val name = term.name.decode.toString.trim
       val buf = unit.source.asInstanceOf[BatchSourceFile].content
       val cs = name.toChars
       var idx = 0

src/attic/scala/tools/nsc/models/Signatures.scala

@@ -10,7 +10,6 @@ import scala.collection.mutable.{HashMap, HashSet}
 import scala.tools.nsc.{Global => Compiler}
 import scala.tools.nsc.symtab.{Flags, Names}
 import scala.tools.nsc.util.{ Position, SourceFile }
-import scala.reflect.NameTransformer
 
 /** This class ...
  *

src/compiler/scala/reflect/internal/Names.scala

@@ -6,7 +6,6 @@
 package scala.reflect
 package internal
 
-import scala.reflect.NameTransformer
 import scala.io.Codec
 import java.security.MessageDigest
 

src/compiler/scala/tools/nsc/doc/html/HtmlPage.scala

@@ -13,7 +13,6 @@ import comment._
 import xml.{XML, NodeSeq}
 import xml.dtd.{DocType, PublicID}
 import scala.collection._
-import scala.reflect.NameTransformer
 import java.nio.channels.Channels
 
 /** An html page that is part of a Scaladoc site.

src/compiler/scala/tools/nsc/interpreter/IMain.scala

@@ -25,7 +25,6 @@ import Exceptional.unwrap
 import scala.collection.{ mutable, immutable }
 import scala.PartialFunction.{ cond, condOpt }
 import scala.util.control.Exception.{ ultimately }
-import scala.reflect.NameTransformer
 import IMain._
 
 /** An interpreter for Scala code.

src/compiler/scala/tools/nsc/interpreter/MemberHandlers.scala

@@ -8,7 +8,6 @@ package interpreter
 
 import scala.collection.{ mutable, immutable }
 import scala.PartialFunction.cond
-import scala.reflect.NameTransformer
 import scala.reflect.internal.Chars
 
 trait MemberHandlers {
@@ -67,7 +66,7 @@ trait MemberHandlers {
     def name: Name      = member.name
     def mods: Modifiers = member.mods
     def keyword         = member.keyword
-    def prettyName      = NameTransformer.decode(name)
+    def prettyName      = name.decode
 
     override def definesImplicit = member.mods.isImplicit
     override def definesTerm: Option[TermName] = Some(name.toTermName) filter (_ => name.isTermName)

src/compiler/scala/tools/nsc/interpreter/Power.scala

@@ -6,7 +6,7 @@
 package scala.tools.nsc
 package interpreter
 
-import scala.reflect.{ NameTransformer, AnyValManifest }
+import scala.reflect.AnyValManifest
 import scala.collection.{ mutable, immutable }
 import scala.util.matching.Regex
 import scala.tools.nsc.util.{ BatchSourceFile }

src/compiler/scala/tools/nsc/interpreter/ReplStrings.scala

@@ -8,7 +8,6 @@ package interpreter
 
 import scala.collection.{ mutable, immutable }
 import scala.PartialFunction.cond
-import scala.reflect.NameTransformer
 import scala.reflect.internal.Chars
 
 trait ReplStrings {

src/compiler/scala/tools/nsc/matching/Patterns.scala

@@ -7,7 +7,6 @@ package scala.tools.nsc
 package matching
 
 import symtab.Flags
-import scala.reflect.NameTransformer.decode
 import PartialFunction._
 
 /** Patterns are wrappers for Trees with enhanced semantics.

src/library/scala/reflect/api/Names.scala

@@ -12,6 +12,16 @@ trait Names {
     def isTypeName: Boolean
     def toTermName: TermName
     def toTypeName: TypeName
+
+    /** Replace all occurrences of $op_names in this name by corresponding operator symbols.
+     *  Example: `foo_+=` becomes `foo_$plus$eq`.
+     */
+    def decode: String
+
+    /** Replace all occurrences of operator symbols in this name by corresponding $op_names.
+     *  Example: `foo_$plus$eq` becomes `foo_+=`
+     */
+    def encode: Name
   }
 
   def newTermName(s: String): TermName