dead code?

core/src/main/java/org/jruby/ir/IRBuilder.java

@@ -1715,23 +1715,6 @@ public Operand buildDefs(DefsNode node, IRScope s) { // Class method
         return new Symbol(method.getName());
     }
 
-    protected int receiveOptArgs(final ArgsNode argsNode, IRScope s, int opt, int argIndex) {
-        ListNode optArgs = argsNode.getOptArgs();
-        for (int j = 0; j < opt; j++, argIndex++) {
-            // Jump to 'l' if this arg is not null.  If null, fall through and build the default value!
-            Label l = s.getNewLabel();
-            LocalAsgnNode n = (LocalAsgnNode)optArgs.get(j);
-            String argName = n.getName();
-            Variable av = s.getLocalVariable(argName, 0);
-            if (s instanceof IRMethod) ((IRMethod)s).addArgDesc(IRMethodArgs.ArgType.opt, argName);
-            addInstr(s, new ReceiveOptArgInstr(av, argIndex-j, argIndex-j, j));
-            addInstr(s, BNEInstr.create(av, UndefinedValue.UNDEFINED, l)); // if 'av' is not undefined, go to default
-            build(n, s);
-            addInstr(s, new LabelInstr(l));
-        }
-        return argIndex;
-    }
-
     protected LocalVariable getArgVariable(IRScope s, String name, int depth) {
         // For non-loops, this name will override any name that exists in outer scopes
         return s instanceof IRFor ? s.getLocalVariable(name, depth) : s.getNewLocalVariable(name, 0);
@@ -2041,17 +2024,6 @@ public void receiveBlockArgs(final IterNode node, IRScope s) {
         }
     }
 
-    public String buildType(Node typeNode) {
-        switch (typeNode.getNodeType()) {
-        case CONSTNODE:
-            return ((ConstNode)typeNode).getName();
-        case SYMBOLNODE:
-            return ((SymbolNode)typeNode).getName();
-        default:
-            return "unknown_type";
-        }
-    }
-
     public Operand buildDot(final DotNode dotNode, IRScope s) {
         Variable res = s.createTemporaryVariable();
         addInstr(s, new BuildRangeInstr(res, build(dotNode.getBeginNode(), s), build(dotNode.getEndNode(), s), dotNode.isExclusive()));