From 2901639c758397546e8bf7fa994e5612c82be3cd Mon Sep 17 00:00:00 2001
From: michelou <michelou@epfl.ch>
Date: Fri, 6 Oct 2006 15:50:45 +0000
Subject: TreePrinter and Types now use escapedStringValu...

TreePrinter and Types now use escapedStringValue from class Constant
---
 .../scala/tools/nsc/ast/TreePrinters.scala         |  9 +----
 .../scala/tools/nsc/symtab/Constants.scala         | 42 ++++++++++++++++------
 src/compiler/scala/tools/nsc/symtab/Types.scala    | 20 ++---------
 3 files changed, 35 insertions(+), 36 deletions(-)

(limited to 'src')

diff --git a/src/compiler/scala/tools/nsc/ast/TreePrinters.scala b/src/compiler/scala/tools/nsc/ast/TreePrinters.scala
index ec41149264..52e95ea818 100644
--- a/src/compiler/scala/tools/nsc/ast/TreePrinters.scala
+++ b/src/compiler/scala/tools/nsc/ast/TreePrinters.scala
@@ -290,14 +290,7 @@ abstract class TreePrinters {
           print(symName(tree, name))
 
         case Literal(x) =>
-          print(x.tag match {
-            case NullTag   => "null"
-            case StringTag => "\"" + x.stringValue + "\""
-            case ClassTag  => x.stringValue + ".class"
-            case CharTag   => "\'" + x.charValue + "\'"
-            case LongTag   => x.longValue.toString() + "L"
-            case _         => x.value.toString()
-          })
+          print(x.escapedStringValue)
 
         case TypeTree() =>
           print(
diff --git a/src/compiler/scala/tools/nsc/symtab/Constants.scala b/src/compiler/scala/tools/nsc/symtab/Constants.scala
index f86f68cf7a..ab2c58cdbd 100644
--- a/src/compiler/scala/tools/nsc/symtab/Constants.scala
+++ b/src/compiler/scala/tools/nsc/symtab/Constants.scala
@@ -164,24 +164,24 @@ trait Constants requires SymbolTable {
     def convertTo(pt: Type): Constant = {
       val target = pt.symbol
       if (target == tpe.symbol)
-	this
+        this
       else if (target == ByteClass && ByteTag <= tag && tag <= IntTag &&
-	  -128 <= intValue && intValue <= 127)
-	Constant(byteValue)
+          -128 <= intValue && intValue <= 127)
+        Constant(byteValue)
       else if (target == ShortClass && ByteTag <= tag && tag <= IntTag &&
-	       -32768 <= intValue && intValue <= 32767)
-	Constant(shortValue)
+               -32768 <= intValue && intValue <= 32767)
+        Constant(shortValue)
       else if (target == CharClass && ByteTag <= tag && tag <= IntTag  &&
-	       0 <= intValue && intValue <= 65635)
-	Constant(charValue)
+               0 <= intValue && intValue <= 65635)
+        Constant(charValue)
       else if (target == IntClass && ByteTag <= tag && tag <= IntTag)
-	Constant(intValue)
+        Constant(intValue)
       else if (target == LongClass && ByteTag <= tag && tag <= LongTag)
-	Constant(longValue)
+        Constant(longValue)
       else if (target == FloatClass && ByteTag <= tag && tag <= FloatTag)
-	Constant(floatValue)
+        Constant(floatValue)
       else if (target == DoubleClass && ByteTag <= tag && tag <= DoubleTag)
-	Constant(doubleValue)
+        Constant(doubleValue)
       else {
         null
       }
@@ -192,6 +192,26 @@ trait Constants requires SymbolTable {
       else if (tag == ClassTag) signature(typeValue)
       else value.toString()
 
+    def escapedStringValue: String = {
+      def escape(text: String): String = {
+        val buf = new StringBuffer
+        for (val c <- Iterator.fromString(text))
+          if (Character.isISOControl(c))
+            buf.append("\\0" + Integer.toOctalString(c.asInstanceOf[Int]))
+          else
+            buf.append(c)
+        buf.toString
+      }
+      tag match {
+        case NullTag   => "null"
+        case StringTag => "\"" + escape(stringValue) + "\""
+        case ClassTag  => signature(typeValue) + ".class"
+        case CharTag   => escape("\'" + charValue + "\'")
+        case LongTag   => longValue.toString() + "L"
+        case _         => value.toString()
+      }
+    }
+
     def typeValue: Type = value.asInstanceOf[Type]
 
     def symbolValue: Symbol = value.asInstanceOf[Symbol]
diff --git a/src/compiler/scala/tools/nsc/symtab/Types.scala b/src/compiler/scala/tools/nsc/symtab/Types.scala
index 3c5524e88e..1441a1e7b5 100644
--- a/src/compiler/scala/tools/nsc/symtab/Types.scala
+++ b/src/compiler/scala/tools/nsc/symtab/Types.scala
@@ -838,22 +838,8 @@ trait Types requires SymbolTable {
     override def symbol: Symbol = value.tpe.symbol
     override def singleDeref: Type = value.tpe
     override def deconst: Type = value.tpe
-    override def toString(): String = {
-      def escape(text: String): String = {
-        val buf = new StringBuffer
-        for (val c <- Iterator.fromString(text))
-          if (Character.isISOControl(c))
-            buf.append("\\0" + Integer.toOctalString(c.asInstanceOf[Int]))
-          else
-            buf.append(c)
-        buf.toString
-      }
-      val svalue =
-        if (value.tag == CharTag) "'" + escape(value.stringValue) + "'"
-        else if (value.tag == StringTag) "\"" + escape(value.stringValue) + "\""
-        else value.stringValue
-      value.tpe.toString() + "(" + svalue + ")"
-    }
+    override def toString(): String =
+      value.tpe.toString() + "(" + value.escapedStringValue + ")"
     // override def isNullable: boolean = value.value == null
     // override def isNonNull: boolean = value.value != null
   }
@@ -979,7 +965,7 @@ trait Types requires SymbolTable {
       else if (sym.isRoot || sym.isEmptyPackageClass || sym.isInterpreterWrapper ||
                sym.isAnonymousClass || sym.isRefinementClass) ""
       else if (sym.isPackageClass) sym.fullNameString + "."
-      else super.prefixString;
+      else super.prefixString
   }
 
   /** A class representing a method type with parameters.
-- 
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