Disable specialization for Scala.js

Author: liufengyun

compiler/src/dotty/tools/dotc/transform/SpecializeFunctions.scala

@@ -2,7 +2,7 @@ package dotty.tools.dotc
 package transform
 
 import ast.Trees._, ast.tpd, core._
-import Contexts.Context, Types._, Decorators._, Symbols._, DenotTransformers._
+import Contexts._, Types._, Decorators._, Symbols._, DenotTransformers._
 import SymDenotations._, Scopes._, StdNames._, NameOps._, Names._
 import MegaPhase.MiniPhase
 
@@ -16,6 +16,9 @@ class SpecializeFunctions extends MiniPhase with InfoTransformer {
   val phaseName = "specializeFunctions"
   override def runsAfter = Set(ElimByName.name)
 
+  override def isEnabled(using Context): Boolean =
+    !ctx.settings.scalajs.value
+
   override def infoMayChange(sym: Symbol)(using Context): Boolean =
     !sym.is(Flags.Package) && sym.isDefinedInCurrentRun
 

compiler/src/dotty/tools/dotc/transform/SpecializedApplyMethods.scala

@@ -22,6 +22,9 @@ class SpecializedApplyMethods extends MiniPhase with InfoTransformer {
 
   val phaseName = "specializedApplyMethods"
 
+  override def isEnabled(using Context): Boolean =
+    !ctx.settings.scalajs.value
+
   private def specApplySymbol(sym: Symbol, args: List[Type], ret: Type)(using Context): Symbol = {
     val name = nme.apply.specializedFunction(ret, args)
     // Create the symbol at the next phase, so that it is a valid member of the