X-Git-Url: https://gerrit.simantics.org/r/gitweb?a=blobdiff_plain;f=bundles%2Forg.simantics.scl.compiler%2Ftests%2Forg%2Fsimantics%2Fscl%2Fcompiler%2Ftests%2Fexperimentation%2FRecursiveInitialization.java;fp=bundles%2Forg.simantics.scl.compiler%2Ftests%2Forg%2Fsimantics%2Fscl%2Fcompiler%2Ftests%2Fexperimentation%2FRecursiveInitialization.java;h=5f5d20ddcfb907fb3a033156aac136f54d36d614;hb=969bd23cab98a79ca9101af33334000879fb60c5;hp=0000000000000000000000000000000000000000;hpb=866dba5cd5a3929bbeae85991796acb212338a08;p=simantics%2Fplatform.git

diff --git a/bundles/org.simantics.scl.compiler/tests/org/simantics/scl/compiler/tests/experimentation/RecursiveInitialization.java b/bundles/org.simantics.scl.compiler/tests/org/simantics/scl/compiler/tests/experimentation/RecursiveInitialization.java
new file mode 100644
index 000000000..5f5d20ddc
--- /dev/null
+++ b/bundles/org.simantics.scl.compiler/tests/org/simantics/scl/compiler/tests/experimentation/RecursiveInitialization.java
@@ -0,0 +1,60 @@
+package org.simantics.scl.compiler.tests.experimentation;
+
+import java.io.PrintWriter;
+import java.lang.reflect.Method;
+import java.util.concurrent.atomic.AtomicReference;
+
+import org.objectweb.asm.ClassVisitor;
+import org.objectweb.asm.ClassWriter;
+import org.objectweb.asm.MethodVisitor;
+import org.objectweb.asm.Opcodes;
+import org.objectweb.asm.util.TraceClassVisitor;
+
+public class RecursiveInitialization {
+
+    public static void main(String[] args) throws Exception {
+        ClassWriter classWriter = new ClassWriter(ClassWriter.COMPUTE_MAXS);
+        ClassVisitor classVisitor = new TraceClassVisitor(classWriter, new PrintWriter(System.out));
+        classVisitor.visit(Opcodes.V1_5, Opcodes.ACC_PUBLIC, "test/Test", null, "java/lang/Object", new String[0]);
+        MethodVisitor methodWriter = classVisitor.visitMethod(
+                Opcodes.ACC_PUBLIC | Opcodes.ACC_STATIC,
+                "main", "()Ljava/lang/Object;", null, null);
+        
+        methodWriter.visitCode();        
+        methodWriter.visitTypeInsn(Opcodes.NEW, "java/util/concurrent/atomic/AtomicReference");
+        methodWriter.visitVarInsn(Opcodes.ASTORE, 2);
+
+        methodWriter.visitTypeInsn(Opcodes.NEW, "java/util/concurrent/atomic/AtomicReference");
+        methodWriter.visitVarInsn(Opcodes.ASTORE, 1);
+        
+        methodWriter.visitVarInsn(Opcodes.ALOAD, 2);
+        methodWriter.visitVarInsn(Opcodes.ALOAD, 1);
+        //methodWriter.visitInsn(Opcodes.ACONST_NULL);
+        methodWriter.visitMethodInsn(Opcodes.INVOKESPECIAL, "java/util/concurrent/atomic/AtomicReference", "<init>", "(Ljava/lang/Object;)V", false);
+        
+        methodWriter.visitVarInsn(Opcodes.ALOAD, 1);
+        methodWriter.visitVarInsn(Opcodes.ALOAD, 2);
+        methodWriter.visitMethodInsn(Opcodes.INVOKESPECIAL, "java/util/concurrent/atomic/AtomicReference", "<init>", "(Ljava/lang/Object;)V", false);
+
+        methodWriter.visitVarInsn(Opcodes.ALOAD, 2);
+        methodWriter.visitInsn(Opcodes.ARETURN);
+        methodWriter.visitMaxs(0, 0);
+        methodWriter.visitEnd();
+        
+        byte[] bytes = classWriter.toByteArray();
+        ClassLoader classLoader = new ClassLoader() {
+            @Override
+            protected Class<?> findClass(String name) throws ClassNotFoundException {
+                if(!name.equals("test.Test"))
+                    throw new ClassNotFoundException();
+                return defineClass("test.Test", bytes, 0, bytes.length);
+            }
+        };
+        Class<?> clazz = classLoader.loadClass("test.Test");
+        Method method = clazz.getMethod("main");
+        AtomicReference<Object> result = (AtomicReference<Object>)method.invoke(null);
+        System.out.println(result.hashCode());
+        //System.out.println(result.get().hashCode());
+    }
+    
+}