1 files changed, 65 insertions, 0 deletions
diff --git a/src/test/java/walter/multiTrig.oj b/src/test/java/walter/multiTrig.oj
new file mode 100644
index 0000000..18c194a
--- /dev/null
+++ b/src/test/java/walter/multiTrig.oj
@@ -0,0 +1,65 @@
+package walter;
+
+import io.devnulllabs.openjava.ptree.*;
+import io.devnulllabs.openjava.ptree.ModifierList;
+import io.devnulllabs.openjava.mop.*;
+
+public class multiTrig instantiates Metaclass extends OJClass {
+
+    private static final String MULTI_TRIG = "multi_trig";
+    private final int triggerValue = 10;
+
+    public static boolean isRegisteredModifier(String keyword) {
+        if (keyword.equals(MULTI_TRIG))
+            return true;
+        return OJClass.isRegisteredModifier(keyword);
+    }
+
+    public void translateDefinition() throws MOPException {
+        OJMethod[] methods = getDeclaredMethods();
+        for (int i = 0; i < methods.length; ++i) {
+            if (!methods[i].getModifiers().has(MULTI_TRIG))
+                continue;
+            String name = methods[i].getName(); // is a multi-trigged method
+            ModifierList ml = new ModifierList(ModifierList.PRIVATE);
+            TypeName tn = new TypeName("int");
+            /* inserts a field for counting the method calls
+               private int <method name>Counter = 0         */
+            String counterName = name + "Counter";
+            VariableInitializer vi = Literal.makeLiteral(0);
+            FieldDeclaration fd = new FieldDeclaration(ml, tn, counterName, vi);
+            OJField field = new OJField(getEnvironment(), this, fd);
+            addField(field);
+
+            /* inserts a field keeping the trigger value
+               private int <method name>Trigger = 10        */
+            String triggerName = name + "Trigger";
+            vi = Literal.makeLiteral(triggerValue);
+            fd = new FieldDeclaration(ml, tn, triggerName, vi);
+            field = new OJField(getEnvironment(), this, fd);
+            addField(field);
+
+            /* inserts a precondition on the execution of the method body
+               if (<method name>Counter == <method name>Trigger) {
+               and a post action
+               <method body>
+               <method name>Counter = 0;
+               } <method name>Counter++;                                 */
+            StatementList newBody =
+                makeStatementList(
+                    methods[i].getEnvironment(),
+                    "if ("
+                        + counterName
+                        + " == "
+                        + triggerName
+                        + ") {"
+                        + methods[i].getBody().toString()
+                        + counterName
+                        + "=0;}; "
+                        + counterName
+                        + "++;");
+            methods[i].setBody(newBody);
+        }
+    }
+
+}