OJ (aka OpenJava) modernization/mirroring

Signed-off-by: Kenny Ballou <kballou@devnulllabs.io>

1 files changed, 78 insertions, 0 deletions

diff --git a/tutorial/examples/autoimp/AutoImplementerClass.java b/tutorial/examples/autoimp/AutoImplementerClass.java
new file mode 100644
index 0000000..11f5040
--- /dev/null
+++ b/tutorial/examples/autoimp/AutoImplementerClass.java
@@ -0,0 +1,78 @@
+/*
+ * This code was generated by ojc.
+ */
+/*
+ * AutoImplementerClass.oj
+ *
+ * Apr 29, 1999, by Michiaki Tatsubori
+ * Feb 2, 1999, by Michiaki Tatsubori
+ */
+package examples.autoimp;
+
+
+import openjava.mop.*;
+import openjava.ptree.*;
+import openjava.syntax.*;
+
+
+/**
+ * The metaclass <code>AutoImprementerClass</code> provides classes
+ * with a facility automatically implementing null methods for
+ * not implemented methods.
+ * <p>
+ *
+ * @author   Michiaki Tatsubori
+ * @version  1.0
+ * @see openjava.mop.OJClass#translateDefinition()
+ * @see openjava.mop.OJClass#isRegisteredModifier()
+ */
+public class AutoImplementerClass extends OJClass
+{
+
+    public void translateDefinition()
+        throws MOPException
+    {
+        OJMethod[] methods = getInheritedMethods();
+        for (int i = 0; i < methods.length; ++i) {
+            if (!methods[i].getModifiers().isAbstract() || hasDeclaredMethod( methods[i] )) {
+                continue;
+            }
+            addMethod( makeNullMethod( methods[i] ) );
+        }
+    }
+
+    private boolean hasDeclaredMethod( OJMethod m )
+    {
+        try {
+            getDeclaredMethod( m.getName(), m.getParameterTypes() );
+            return true;
+        } catch ( NoSuchMemberException e ) {
+            return false;
+        }
+    }
+
+    private OJMethod makeNullMethod( OJMethod m )
+        throws MOPException
+    {
+        OJMethod result = new OJMethod( this, m.getModifiers().remove( OJModifier.ABSTRACT ), m.getReturnType(), m.getName(), m.getParameterTypes(), m.getExceptionTypes(), null );
+        StatementList body = new StatementList();
+        if (m.getReturnType() == OJSystem.VOID) {
+            body.add( new ReturnStatement() );
+        } else {
+            body.add( new ReturnStatement( Literal.constantNull() ) );
+        }
+        result.setBody( body );
+        return result;
+    }
+
+    public AutoImplementerClass( openjava.mop.Environment oj_param0, openjava.mop.OJClass oj_param1, openjava.ptree.ClassDeclaration oj_param2 )
+    {
+        super( oj_param0, oj_param1, oj_param2 );
+    }
+
+    public AutoImplementerClass( java.lang.Class oj_param0, openjava.mop.MetaInfo oj_param1 )
+    {
+        super( oj_param0, oj_param1 );
+    }
+
+}