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-rw-r--r--tests/features1919/java19/SwitchPatternPreview3Aspect.aj88
1 files changed, 88 insertions, 0 deletions
diff --git a/tests/features1919/java19/SwitchPatternPreview3Aspect.aj b/tests/features1919/java19/SwitchPatternPreview3Aspect.aj
new file mode 100644
index 000000000..ae147dad7
--- /dev/null
+++ b/tests/features1919/java19/SwitchPatternPreview3Aspect.aj
@@ -0,0 +1,88 @@
+import java.util.List;
+import java.util.Locale;
+
+aspect SwitchPatternPreview3Aspect {
+ Object around(Object o) : execution(* doSomethingWithObject(*)) && args(o) {
+ System.out.println(switch (o) {
+ case null -> "null";
+ case Integer i -> String.format("int %d", i);
+ case Long l -> String.format("long %d", l);
+ case Double d -> String.format(Locale.ENGLISH, "double %f", d);
+ case String s -> String.format("String %s", s);
+ default -> o.toString();
+ });
+ return proceed(o);
+ }
+
+ before(Shape s) : execution(* doSomethingWithShape(*)) && args(s) {
+ System.out.println(switch (s) {
+ case Circle c when (c.calculateArea() > 100) -> "Large circle";
+ case Circle c -> "Small circle";
+ default -> "Non-circle";
+ });
+ }
+
+ after(S s) : execution(* doSomethingWithSealedClass(*)) && args(s) {
+ System.out.println(switch (s) {
+ case A a -> "Sealed sub-class A";
+ case B b -> "Sealed sub-class B";
+ case C c -> "Sealed sub-record C";
+ });
+ }
+
+ Object around(Integer i): execution(* doSomethingWithInteger(*)) && args(i) {
+ System.out.println(
+ switch (i) {
+ case null -> "value unavailable: " + i;
+ case -1, 1 -> "absolute value 1: " + i;
+ case Integer value when value > 0 -> "positive integer: " + i;
+ default -> "other integer: " + i;
+ }
+ );
+ return proceed(i);
+ }
+}
+
+class Shape {}
+class Rectangle extends Shape {}
+class Circle extends Shape {
+ private final double radius;
+ public Circle(double radius) { this.radius = radius; }
+ double calculateArea() { return Math.PI * radius * radius; }
+}
+
+sealed interface S permits A, B, C {}
+final class A implements S {}
+final class B implements S {}
+record C(int i) implements S {} // Implicitly final
+
+class Application {
+ public static void main(String[] args) {
+ doSomethingWithObject(null);
+ doSomethingWithObject(123);
+ doSomethingWithObject(999L);
+ doSomethingWithObject(12.34);
+ doSomethingWithObject("foo");
+ doSomethingWithObject(List.of(123, "foo", 999L, 12.34));
+
+ doSomethingWithShape(new Rectangle());
+ doSomethingWithShape(new Circle(5));
+ doSomethingWithShape(new Circle(6));
+
+ doSomethingWithSealedClass(new A());
+ doSomethingWithSealedClass(new B());
+ doSomethingWithSealedClass(new C(5));
+
+ doSomethingWithInteger(-1);
+ doSomethingWithInteger(0);
+ doSomethingWithInteger(42);
+ doSomethingWithInteger(-99);
+ doSomethingWithInteger(Integer.valueOf(123));
+ doSomethingWithInteger(null);
+ }
+
+ public static Object doSomethingWithObject(Object o) { return o; }
+ public static void doSomethingWithSealedClass(S s) {}
+ public static void doSomethingWithShape(Shape s) {}
+ public static Object doSomethingWithInteger(Integer o) { return o; }
+}