Merge pull request #14032 from dotty-staging/en-migrate-main

Migrating the main compiler to explicit nulls

Author: noti0na1

compiler/src/dotty/tools/MainGenericRunner.scala

@@ -1,5 +1,6 @@
 package dotty.tools
 
+import scala.language.unsafeNulls
 
 import scala.annotation.tailrec
 import scala.io.Source

compiler/src/dotty/tools/backend/jvm/AsmUtils.scala

@@ -2,6 +2,8 @@ package dotty.tools
 package backend
 package jvm
 
+import scala.language.unsafeNulls
+
 import scala.tools.asm.tree.{AbstractInsnNode}
 import java.io.PrintWriter
 import scala.tools.asm.util.{TraceClassVisitor, TraceMethodVisitor, Textifier}

compiler/src/dotty/tools/backend/jvm/BCodeAsmCommon.scala

@@ -2,6 +2,8 @@ package dotty.tools
 package backend
 package jvm
 
+import scala.language.unsafeNulls
+
 import dotty.tools.dotc.core.Flags._
 import dotty.tools.dotc.core.Symbols._
 import dotty.tools.dotc.report

compiler/src/dotty/tools/backend/jvm/BCodeBodyBuilder.scala

@@ -2,6 +2,8 @@ package dotty.tools
 package backend
 package jvm
 
+import scala.language.unsafeNulls
+
 import scala.annotation.switch
 import scala.collection.mutable.SortedMap
 

compiler/src/dotty/tools/backend/jvm/BCodeHelpers.scala

@@ -2,6 +2,8 @@ package dotty.tools
 package backend
 package jvm
 
+import scala.language.unsafeNulls
+
 import scala.annotation.threadUnsafe
 import scala.tools.asm
 import scala.tools.asm.AnnotationVisitor

compiler/src/dotty/tools/backend/jvm/BCodeIdiomatic.scala

@@ -2,6 +2,8 @@ package dotty.tools
 package backend
 package jvm
 
+import scala.language.unsafeNulls
+
 import scala.tools.asm
 import scala.annotation.switch
 import Primitives.{NE, EQ, TestOp, ArithmeticOp}

compiler/src/dotty/tools/backend/jvm/BCodeSkelBuilder.scala

@@ -2,10 +2,11 @@ package dotty.tools
 package backend
 package jvm
 
+import scala.language.unsafeNulls
+
 import scala.collection.{ mutable, immutable }
 
 import scala.tools.asm
-
 import dotty.tools.dotc.ast.tpd
 import dotty.tools.dotc.ast.TreeTypeMap
 import dotty.tools.dotc.CompilationUnit

compiler/src/dotty/tools/backend/jvm/BCodeSyncAndTry.scala

@@ -2,6 +2,8 @@ package dotty.tools
 package backend
 package jvm
 
+import scala.language.unsafeNulls
+
 import scala.collection.immutable
 import scala.tools.asm
 

compiler/src/dotty/tools/backend/jvm/BTypes.scala

@@ -2,6 +2,8 @@ package dotty.tools
 package backend
 package jvm
 
+import scala.language.unsafeNulls
+
 import scala.tools.asm
 
 /**

compiler/src/dotty/tools/backend/jvm/BytecodeWriters.scala

@@ -2,6 +2,8 @@ package dotty.tools
 package backend
 package jvm
 
+import scala.language.unsafeNulls
+
 import java.io.{ DataOutputStream, FileOutputStream, IOException, File as JFile }
 import java.nio.channels.ClosedByInterruptException
 import dotty.tools.io._