Added gjt to CVS

1 files changed, 33 insertions, 0 deletions

diff --git a/java/gjt/Assert.java b/java/gjt/Assert.java
new file mode 100644
index 00000000000..b11f2ec4add
--- /dev/null
+++ b/java/gjt/Assert.java
@@ -0,0 +1,33 @@
+package gjt;
+
+/**
+ * A simple assertion mechanism for asserting validity of
+ * arguments.<p>
+ *
+ * @version 1.0, Apr 1 1996
+ * @author  David Geary
+ */
+class Assert {
+    static public void notFalse(boolean b) 
+                       throws IllegalArgumentException {
+        if(b == false) 
+            throw new IllegalArgumentException(
+                            "boolean expression false");
+    }
+    static public void notNull(Object obj) 
+                       throws IllegalArgumentException {
+        if(obj == null) 
+            throw new IllegalArgumentException("null argument");
+    }
+
+    static public void notFalse(boolean b, String s) 
+                               throws IllegalArgumentException {
+        if(b == false)
+            throw new IllegalArgumentException(s);
+    }
+    static public void notNull(Object obj, String s) 
+                               throws IllegalArgumentException {
+        if(obj == null) 
+            throw new IllegalArgumentException(s);
+    }
+}