- Added TreeFieldLink.java

1 files changed, 54 insertions, 0 deletions

diff --git a/sources/meta/scalac/ast/TreeFieldLink.java b/sources/meta/scalac/ast/TreeFieldLink.java
new file mode 100644
index 0000000000..b338ccd6eb
--- /dev/null
+++ b/sources/meta/scalac/ast/TreeFieldLink.java
@@ -0,0 +1,54 @@
+/*     ____ ____  ____ ____  ______                                     *\
+**    / __// __ \/ __// __ \/ ____/    SOcos COmpiles Scala             **
+**  __\_ \/ /_/ / /__/ /_/ /\_ \       (c) 2002, LAMP/EPFL              **
+** /_____/\____/\___/\____/____/                                        **
+\*                                                                      */
+
+// $Id$
+
+package meta.scalac.ast;
+
+/**
+ * This class describes the possible links between a given field of a
+ * tree and the symbol of that tree.
+ */
+public class TreeFieldLink {
+
+    //########################################################################
+    // Public Cases
+
+    /** Field is linked to the symbol's flags */
+    public case SymFlags;
+
+    /** Field is linked to the symbol's name */
+    public case SymName;
+
+    //########################################################################
+    // Public Methods
+
+    /** Returns the field or method to invoke to get the linked value. */
+    public String getLink() {
+        switch (this) {
+        case SymFlags:
+            return "flags";
+        case SymName:
+            return "name";
+        default:
+            throw new Error("unknown case: " + this);
+        }
+    }
+
+    /** Returns the name of this link. */
+    public String toString() {
+        switch (this) {
+        case SymFlags:
+            return "flags";
+        case SymName:
+            return "name";
+        default:
+            throw new Error("unknown case: " + this);
+        }
+    }
+
+    //########################################################################
+}