Add package for extended features

Author: rodrigorato

src/main/java/ist/meic/pa/GenericFunctionsExtended/AfterMethod.java

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+package ist.meic.pa.GenericFunctionsExtended;
+
+import java.lang.annotation.ElementType;
+import java.lang.annotation.Retention;
+import java.lang.annotation.RetentionPolicy;
+import java.lang.annotation.Target;
+
+@Retention(RetentionPolicy.RUNTIME)
+@Target(ElementType.METHOD)
+public @interface AfterMethod {
+}

src/main/java/ist/meic/pa/GenericFunctionsExtended/BeforeMethod.java

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+package ist.meic.pa.GenericFunctionsExtended;
+
+import java.lang.annotation.ElementType;
+import java.lang.annotation.Retention;
+import java.lang.annotation.RetentionPolicy;
+import java.lang.annotation.Target;
+
+@Retention(RetentionPolicy.RUNTIME)
+@Target(ElementType.METHOD)
+public @interface BeforeMethod {
+}

src/main/java/ist/meic/pa/GenericFunctionsExtended/GenericFunction.java

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+package ist.meic.pa.GenericFunctionsExtended;
+
+import java.lang.annotation.ElementType;
+import java.lang.annotation.Retention;
+import java.lang.annotation.RetentionPolicy;
+import java.lang.annotation.Target;
+
+@Retention(RetentionPolicy.RUNTIME)
+@Target(ElementType.TYPE)
+public @interface GenericFunction {
+}

src/main/java/ist/meic/pa/GenericFunctionsExtended/WithGenericFunctions.java

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+package ist.meic.pa.GenericFunctionsExtended;
+
+import ist.meic.pa.GenericFunctionsExtended.translator.GenericFunctionTranslator;
+import javassist.ClassPool;
+import javassist.Loader;
+import javassist.NotFoundException;
+import javassist.Translator;
+
+import java.lang.reflect.InvocationTargetException;
+import java.util.Arrays;
+
+public class WithGenericFunctions {
+    public static void main(String[] args) {
+
+        try {
+            // Get our translator that will do our instrumentation
+            Translator translator = new GenericFunctionTranslator();
+
+            // Get the current class pool and add our translator to it's loader
+            ClassPool classPool = ClassPool.getDefault();
+            Loader classLoader = new Loader();
+            classLoader.addTranslator(classPool, translator);
+
+            // Get the new parameters for the class we're about to hand over control to
+            String[] parameters = Arrays.copyOfRange(args, 1, args.length);
+
+            // Hand over control, providing the right arguments
+            classLoader.run(args[0], parameters);
+
+        } catch(ArrayIndexOutOfBoundsException e) {
+            System.out.println("No main class was specified! Can't hand over control, ending.");
+            System.exit(-1);
+        } catch (NoSuchMethodException | IllegalAccessException | InvocationTargetException | NotFoundException e) {
+            // Can't really do anything about this, let's just end the program
+            System.out.println("Reflection failed...");
+            System.exit(-1);
+        } catch (Throwable throwable) {
+            System.out.println("Failed to run main class! - " + throwable.getMessage());
+            System.exit(-1);
+        }
+    }
+}

src/main/java/ist/meic/pa/GenericFunctionsExtended/examples/TestA.java

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+package ist.meic.pa.GenericFunctionsExtended.examples;
+
+
+import ist.meic.pa.GenericFunctionsExtended.examples.domain.Black;
+import ist.meic.pa.GenericFunctionsExtended.examples.domain.Blue;
+import ist.meic.pa.GenericFunctionsExtended.examples.domain.Color;
+import ist.meic.pa.GenericFunctionsExtended.examples.domain.Red;
+
+public class TestA {
+    public static void main(String[] args) {
+        Color[] colors = new Color[] { new Red(), new Blue(), new Black()};
+        for(Color c : colors) System.out.println(Color.mix(c));
+    }
+
+}

src/main/java/ist/meic/pa/GenericFunctionsExtended/examples/TestB.java

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+package ist.meic.pa.GenericFunctionsExtended.examples;
+
+
+import ist.meic.pa.GenericFunctionsExtended.examples.domain.Com;
+
+public class TestB {
+    public static void main(String[] args) {
+        Object[] objects = new Object[] { new Object(), "Foo", 123};
+        for(Object c : objects) System.out.println(Com.bine(c));
+    }
+}

src/main/java/ist/meic/pa/GenericFunctionsExtended/examples/TestC.java

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+package ist.meic.pa.GenericFunctionsExtended.examples;
+
+import ist.meic.pa.GenericFunctionsExtended.examples.domain.Black;
+import ist.meic.pa.GenericFunctionsExtended.examples.domain.Color;
+import ist.meic.pa.GenericFunctionsExtended.examples.domain.Red;
+
+public class TestC {
+    public static void main(String[] args) {
+        Object colors = new Object[] { new Red(), 2.9, new Black(), "Holla!"};
+        System.out.println(Color.mix(colors));
+    }
+}
+

src/main/java/ist/meic/pa/GenericFunctionsExtended/examples/TestD.java

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+package ist.meic.pa.GenericFunctionsExtended.examples;
+
+
+import ist.meic.pa.GenericFunctionsExtended.examples.domain.Com;
+
+public class TestD {
+    public static void main(String[] args) {
+        Object objects = new Object[] { "Foo", new Integer[] {123, -12}};
+        System.out.println(Com.bine(objects));
+
+        Object numbers = new Object[] { 123, new Integer[] {456 , 21}};
+        System.out.println(Com.bine(numbers));
+    }
+}

src/main/java/ist/meic/pa/GenericFunctionsExtended/examples/TestE.java

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+package ist.meic.pa.GenericFunctionsExtended.examples;
+
+import ist.meic.pa.GenericFunctionsExtended.examples.domain.Identify;
+
+public class TestE {
+    public static void main(String[] args) {
+        Object objects = new Object[] { 123, "Foo", 1.2};
+        System.out.println(Identify.it(objects));
+    }
+}

src/main/java/ist/meic/pa/GenericFunctionsExtended/examples/TestF.java

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+package ist.meic.pa.GenericFunctionsExtended.examples;
+
+import ist.meic.pa.GenericFunctionsExtended.examples.domain.Bug;
+import ist.meic.pa.GenericFunctionsExtended.examples.domain.C1;
+import ist.meic.pa.GenericFunctionsExtended.examples.domain.C2;
+
+public class TestF {
+    public static void main(String[] args) {
+        Object c1 = new C1(), c2 = new C2();
+        Bug.bug(c1);
+        Bug.bug(c2);
+    }
+}