New stuff - better handle on breaks etc, started try/catch

1999-05-18 22:49:59 +00:00
parent dd82877c5c
commit 522fba0fa5
7 changed files with 310 additions and 148 deletions
@@ -21,6 +21,11 @@ class ControlNode {
        gList.addElement(this);
    }
    
+    ExpressionNode getExpression()
+    {
+        return expr;
+    }
+    
    void setNext(ControlNode aNext)
    {
        next = aNext;
@@ -28,7 +33,7 @@ class ControlNode {
    
    ControlNode eval(Environment theEnv)
    {
-        expr.eval(theEnv);
+        if (expr != null) expr.eval(theEnv);
        return next;
    }
    
@@ -36,12 +41,12 @@ class ControlNode {
    {
        StringBuffer result = new StringBuffer("ControlNode ");
        result.append(index);
-        result.append("\nexpr:\n");
+        result.append("\nexpr:  ");
        if (expr == null)
            result.append("expr = null\n");
        else
            result.append(expr.print(""));
-        result.append("next:\n");
+        result.append("next:  ");
        if (next == null)
            result.append("next = null\n");
        else