Made precedence common between parsers and printers

2 files changed, 33 insertions, 21 deletions

diff --git a/src/dotty/tools/dotc/parsing/Parsers.scala b/src/dotty/tools/dotc/parsing/Parsers.scala
index 0f2ba8531..d76553dd1 100644
--- a/src/dotty/tools/dotc/parsing/Parsers.scala
+++ b/src/dotty/tools/dotc/parsing/Parsers.scala
@@ -15,12 +15,11 @@ import Names._
 import Trees._
 import Decorators._
 import StdNames._
-import util.Chars.isScalaLetter
 import util.Positions._
 import Types._
 import Constants._
 import NameOps._
-import scala.reflect.internal.Chars._
+import util.Chars._
 import ScriptParsers._
 import annotation.switch
 
@@ -339,25 +338,6 @@ object Parsers {
 
     var opStack: List[OpInfo] = Nil
 
-    def precedence(operator: Name): Int =
-      if (operator eq nme.ERROR) -1
-      else {
-        val firstCh = operator(0)
-        if (isScalaLetter(firstCh)) 1
-        else if (operator.isOpAssignmentName) 0
-        else firstCh match {
-          case '|'             => 2
-          case '^'             => 3
-          case '&'             => 4
-          case '=' | '!'       => 5
-          case '<' | '>'       => 6
-          case ':'             => 7
-          case '+' | '-'       => 8
-          case '*' | '/' | '%' => 9
-          case _               => 10
-        }
-      }
-
     def checkAssoc(offset: Int, op: Name, leftAssoc: Boolean) =
       if (TreeInfo.isLeftAssoc(op) != leftAssoc)
         syntaxError(
diff --git a/src/dotty/tools/dotc/parsing/package.scala b/src/dotty/tools/dotc/parsing/package.scala
new file mode 100644
index 000000000..b829bd313
--- /dev/null
+++ b/src/dotty/tools/dotc/parsing/package.scala
@@ -0,0 +1,32 @@
+package dotty.tools.dotc
+
+import util.Chars._
+import core.Names.Name
+import core.StdNames.nme
+import core.NameOps._
+
+package object parsing {
+
+  def precedence(operator: Name): Int =
+    if (operator eq nme.ERROR) -1
+    else {
+      val firstCh = operator(0)
+      if (isScalaLetter(firstCh)) 1
+      else if (operator.isOpAssignmentName) 0
+      else firstCh match {
+        case '|' => 2
+        case '^' => 3
+        case '&' => 4
+        case '=' | '!' => 5
+        case '<' | '>' => 6
+        case ':' => 7
+        case '+' | '-' => 8
+        case '*' | '/' | '%' => 9
+        case _ => 10
+      }
+    }
+
+  def minPrec = 0
+  def maxPrec = 10
+
+}
\ No newline at end of file