Merge pull request #2237 from smowton/smowton/feature/initialize-class-literals

Java class literals: init using a library hook when possible

Author: smowton

jbmc/regression/jbmc/class-literals/ExampleAnnotation.class

@@ -0,0 +1,4 @@
+
+public @interface ExampleAnnotation {
+
+}

jbmc/regression/jbmc/class-literals/ExampleAnnotation.java

@@ -0,0 +1,5 @@
+
+public enum ExampleEnum {
+
+}
+

jbmc/regression/jbmc/class-literals/ExampleEnum.class

@@ -0,0 +1,4 @@
+
+interface ExampleInterface {
+
+}

jbmc/regression/jbmc/class-literals/ExampleEnum.java

@@ -0,0 +1,4 @@
+; Compile me with Jasmin 2.1+ (https://sourceforge.net/projects/jasmin/)
+
+.class public synthetic ExampleSynthetic
+.super java/lang/Object

jbmc/regression/jbmc/class-literals/ExampleInterface.class

@@ -0,0 +1,35 @@
+
+public class Test {
+
+  public static void main() {
+
+    assert ExampleAnnotation.class.isAnnotation();
+    assert ExampleInterface.class.isInterface();
+    assert ExampleEnum.class.isEnum();
+    assert ExampleSynthetic.class.isSynthetic();
+
+    assert char[].class.isArray();
+    assert short[].class.isArray();
+    assert int[].class.isArray();
+    assert long[].class.isArray();
+    assert float[].class.isArray();
+    assert double[].class.isArray();
+    assert boolean[].class.isArray();
+    assert Object[].class.isArray();
+    assert Object[][].class.isArray();
+
+    // Note use of '==' not '.equals', as we expect the same exact literal,
+    // which in jbmc always have the same address.
+    // Note names of array classes are not tested yet, as arrays' types are
+    // printed as their raw signature, to be addressed separately.
+    // Note also primitive types (e.g. int.class) are not addresses here, as
+    // they are created through box types' static initializers (e.g. Integer
+    // has a static member TYPE that holds the Class for `int.class`)
+
+    assert ExampleAnnotation.class.getName() == "ExampleAnnotation";
+    assert ExampleInterface.class.getName() == "ExampleInterface";
+    assert ExampleEnum.class.getName() == "ExampleEnum";
+
+  }
+
+}