package magic.compiler;

import static org.junit.Assert.assertNotNull;
import static org.objectweb.asm.ClassWriter.COMPUTE_FRAMES;

import org.junit.Test;
import org.objectweb.asm.ClassWriter;
import org.objectweb.asm.Opcodes;
import org.objectweb.asm.Type;
import org.objectweb.asm.commons.GeneratorAdapter;
import org.objectweb.asm.commons.Method;

public class TestASM {

	MyClassLoader cl = new MyClassLoader();

	private static final class MyClassLoader extends ClassLoader {

		public Class<?> define(byte[] bcode) {
			return defineClass(null, bcode, 0, bcode.length);
		}
	};

	@Test
	public void testClassCreation() {
		ClassWriter cw = new ClassWriter(COMPUTE_FRAMES);
		cw.visit(52, Opcodes.ACC_PUBLIC + Opcodes.ACC_SUPER, // access
				"magic/Test", // classname
				null, // signature, not needed unless generic?
				"java/lang/Object", // superclass
				new String[] {} // interfaces
		);

		
		{	// no-arg constructor
				Method m = Method.getMethod("void <init> ()");
				GeneratorAdapter mg = new GeneratorAdapter(Opcodes.ACC_PUBLIC, m, null, null, cw);
				mg.loadThis();
				mg.invokeConstructor(Type.getType(Object.class), m);
				mg.returnValue();
				mg.endMethod();
		}

		cw.visitEnd();

		byte[] bcode = cw.toByteArray();

		Class<?> klass = cl.define(bcode);

		assertNotNull(klass);

		Object o;
		try {
			o = klass.newInstance();
		} catch (InstantiationException e) {
			throw new Error(e);
		} catch (IllegalAccessException e) {
			throw new Error(e);
		}
		assertNotNull(o);
	}
}

@@ -49,29 +49,17 @@
 .Assert.
-assertNotNull
+*
 ;%0Aimport
@@ -170,24 +170,63 @@
 lassWriter;%0A
+import org.objectweb.asm.FieldVisitor;%0A
 import org.o
@@ -924,16 +924,207 @@
 s%0A%09%09);%0A%0A
+%09%09%7B%09// static field%0A%09%09%09FieldVisitor fv=cw.visitField(Opcodes.ACC_PUBLIC + Opcodes.ACC_FINAL + Opcodes.ACC_STATIC, %22FOO%22, %22Ljava/lang/String;%22, null, new String(%22foo%22));%0A%09%09%09fv.visitEnd();%0A%09%09%7D%0A
 %09%09%0A%09%09%7B%09/
@@ -1698,16 +1698,16 @@
 e);%0A%09%09%7D%0A
-
 %09%09assert
@@ -1718,13 +1718,161 @@
 ull(o);%0A
+%09%09%0A%09%09String s;%0A%09%09try %7B%0A%09%09%09s=(String) klass.getField(%22FOO%22).get(null);%0A%09%09%7D catch (Throwable t) %7B%0A%09%09%09throw new Error(t);%0A%09%09%7D%0A%09%09assertEquals(%22foo%22,s);%0A
 %09%7D%0A%7D%0A

Add example for static field