- Added atree/AConstant.java

2 files changed, 74 insertions, 3 deletions

diff --git a/sources/scalac/atree/AConstant.java b/sources/scalac/atree/AConstant.java
new file mode 100644
index 0000000000..626ab2a5da
--- /dev/null
+++ b/sources/scalac/atree/AConstant.java
@@ -0,0 +1,39 @@
+/*     ____ ____  ____ ____  ______                                     *\
+**    / __// __ \/ __// __ \/ ____/    SOcos COmpiles Scala             **
+**  __\_ \/ /_/ / /__/ /_/ /\_ \       (c) 2002, LAMP/EPFL              **
+** /_____/\____/\___/\____/____/                                        **
+\*                                                                      */
+
+// $Id$
+
+package scalac.atree;
+
+/** This class represents a constant. */
+public class AConstant {
+
+    //########################################################################
+    // Public Cases
+
+    public case UNIT;
+    public case BOOLEAN(boolean value);
+    public case BYTE(byte value);
+    public case SHORT(short value);
+    public case CHAR(char value);
+    public case INT(int value);
+    public case LONG(long value);
+    public case FLOAT(float value);
+    public case DOUBLE(double value);
+    public case STRING(String value);
+    public case NULL;
+    public case ZERO;
+
+    //########################################################################
+    // Public Methods
+
+    /** Returns a string representation of this constant. */
+    public String toString() {
+        return new ATreePrinter().printConstant(this).toString();
+    }
+
+    //########################################################################
+}
diff --git a/sources/scalac/atree/ATreePrinter.java b/sources/scalac/atree/ATreePrinter.java
index f4304ec99e..d59faf1064 100644
--- a/sources/scalac/atree/ATreePrinter.java
+++ b/sources/scalac/atree/ATreePrinter.java
@@ -237,7 +237,7 @@ public class ATreePrinter {
     //########################################################################
     // Public Methods - Printing trees
 
-    /** Prints the primitive */
+    /** Prints the primitive. */
     public ATreePrinter printPrimitive(APrimitive primitive) {
         switch (primitive) {
         case Negation(ATypeKind type):
@@ -263,12 +263,12 @@ public class ATreePrinter {
         }
     }
 
-    /** Prints the primitive operation of given type */
+    /** Prints the primitive operation of given type. */
     public ATreePrinter printPrimitiveOp(String op, ATypeKind type) {
         return printPrimitiveOp(op, type, null);
     }
 
-    /** Prints the primitive operation of given types */
+    /** Prints the primitive operation of given types. */
     public ATreePrinter printPrimitiveOp(String op, ATypeKind t1,ATypeKind t2){
         print('<').print(op).print('>');
         if (t1 != null && global.uniqid) print('#').print(t1.toString());
@@ -276,6 +276,38 @@ public class ATreePrinter {
         return this;
     }
 
+    /** Prints the constant. */
+    public ATreePrinter printConstant(AConstant constant) {
+        switch (constant) {
+        case UNIT:
+            return print("()");
+        case BOOLEAN(boolean value):
+            return print(value);
+        case BYTE(byte value):
+            return print(value);
+        case SHORT(short value):
+            return print(value);
+        case CHAR(char value):
+            return print('\'').print(value).print('\'');
+        case INT(int value):
+            return print(value);
+        case LONG(long value):
+            return print(value);
+        case FLOAT(float value):
+            return print(value);
+        case DOUBLE(double value):
+            return print(value);
+        case STRING(String value):
+            return print('\"').print(value).print('\"');
+        case NULL:
+            return print("null");
+        case ZERO:
+            return print("<zero>");
+        default:
+            throw Debug.abort("unknown case", constant);
+        }
+    }
+
     //########################################################################
     // Public Methods - Converting