Example usage for org.objectweb.asm MethodVisitor visitEnd

List of usage examples for org.objectweb.asm MethodVisitor visitEnd

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Introduction

In this page you can find the example usage for org.objectweb.asm MethodVisitor visitEnd.

Prototype

public void visitEnd()

Source Link

Document

Visits the end of the method.

Usage

From source file:net.sf.sveditor.core.db.persistence.JITPersistenceDelegateFactory.java

License:Open Source License

private void buildItemAccessor(ClassWriter cw, SVDBItemType t, Class cls) {
    MethodVisitor mv;

    if (fDebugEn) {
        debug("--> buildAccessor t=" + t.name() + " cls=" + cls.getName());
    }/*w  w w.j  a v  a  2  s . c  o  m*/

    // Constructor
    String item_name = t.name();
    String tgt_clsname = getClassName(cls);

    // Read method
    //
    // 0 - this
    // 1 - parent
    // 2 - object
    mv = cw.visitMethod(ACC_PRIVATE, "read" + item_name, "(L" + fChildItem + ";)L" + tgt_clsname + ";", null,
            new String[] { fDBFormatException });
    mv.visitCode();
    mv.visitTypeInsn(NEW, tgt_clsname); // Create a new class instance
    mv.visitInsn(DUP); // Duplicate handle. One will be consumed by the init call
    mv.visitMethodInsn(INVOKESPECIAL, tgt_clsname, "<init>", "()V");
    //      mv.visitInsn(DUP);               // Duplicate. One will be consumed by store to obj-var
    mv.visitVarInsn(ASTORE, READ_OBJ_VAR); // Store handle to obj-var 
    //      mv.visitVarInsn(ALOAD, THIS_VAR);
    //      mv.visitVarInsn(ALOAD, READ_OBJ_VAR);
    //      mv.visitMethodInsn(INVOKESPECIAL, tgt_clsname, "<init>", "()V");
    //      mv.visit
    //      mv.visitInsn(ACONST_NULL);
    //      mv.visitVarInsn(ASTORE, READ_OBJ_VAR); // Initialize return 
    visit(false, tgt_clsname, mv, cls);
    mv.visitVarInsn(ALOAD, READ_OBJ_VAR); // Setup for return of var0
    mv.visitInsn(ARETURN);
    mv.visitMaxs(3, 3);
    mv.visitEnd();

    // Write method
    //
    // 0 - this
    // 1 - object
    mv = cw.visitMethod(ACC_PRIVATE, "write" + item_name,
            // "(L" + tgt_clsname + ";)V",
            "(L" + tgt_clsname + ";)V", null, new String[] { fDBWriteException });
    mv.visitCode();
    visit(true, tgt_clsname, mv, cls);
    mv.visitInsn(RETURN);
    mv.visitMaxs(3, 3);
    mv.visitEnd();

    if (fDebugEn) {
        debug("<-- buildAccessor t=" + t + " cls=" + cls.getName());
    }
}

From source file:net.sourceforge.cobertura.instrument.pass3.AbstractCodeProvider.java

License:GNU General Public License

/**
 * {@inheritDoc}<br/><br/>/* www. j  a v  a  2 s.  c om*/
 * <p/>
 * Generates method (named  {@link #COBERTURA_CLASSMAP_METHOD_NAME}) with such a signature:
 * __cobertura_classmap( {@link LightClassmapListener} listener).</br>
 * <p/>
 * The method informs the listener about all lines, jumps and switches found, and about all counters tracking
 * the constructions.
 */
public void generateCoberturaClassMapMethod(ClassVisitor cv, ClassMap classMap) {

    LinkedList<TouchPointDescriptor> touchPointDescriptors = new LinkedList<TouchPointDescriptor>(
            classMap.getTouchPointsInLineOrder());
    int parts = 0;
    for (int j = 0; touchPointDescriptors.size() > 0; j++) {
        List<TouchPointDescriptor> bufor = new LinkedList<TouchPointDescriptor>();
        for (int i = 0; i < 1000 && touchPointDescriptors.size() > 0; i++) {
            bufor.add(touchPointDescriptors.removeFirst());
        }
        classMapContent(cv, j, bufor);
        parts++;
    }

    MethodVisitor mv = cv.visitMethod(Opcodes.ACC_PUBLIC | Opcodes.ACC_STATIC, COBERTURA_CLASSMAP_METHOD_NAME,
            "(" + Type.getType(LightClassmapListener.class).toString() + ")V", null, null);
    mv.visitCode();
    mv.visitVarInsn(Opcodes.ALOAD, 0);

    mv.visitInsn(Opcodes.DUP);
    mv.visitLdcInsn(classMap.getClassName());
    mv.visitMethodInsn(Opcodes.INVOKEINTERFACE, CLASSMAP_LISTENER_INTERNALNAME, "setClazz",
            "(Ljava/lang/String;)V");

    if (classMap.getSource() != null) {
        mv.visitInsn(Opcodes.DUP);
        mv.visitLdcInsn(classMap.getSource());
        mv.visitMethodInsn(Opcodes.INVOKEINTERFACE, CLASSMAP_LISTENER_INTERNALNAME, "setSource",
                "(Ljava/lang/String;)V");
    }

    for (int i = 0; i < parts; i++) {
        mv.visitInsn(Opcodes.DUP);
        mv.visitMethodInsn(Opcodes.INVOKESTATIC, classMap.getClassName(),
                COBERTURA_CLASSMAP_METHOD_NAME + "_" + i,
                "(" + Type.getType(LightClassmapListener.class).toString() + ")V");
    }

    mv.visitInsn(Opcodes.POP);
    mv.visitInsn(Opcodes.RETURN);
    mv.visitMaxs(0, 0);//will be recalculated by writer
    mv.visitEnd();
}

From source file:net.sourceforge.cobertura.instrument.pass3.AbstractCodeProvider.java

License:GNU General Public License

private void classMapContent(ClassVisitor cv, int nr, List<TouchPointDescriptor> touchPointDescriptors) {
    MethodVisitor mv = cv.visitMethod(Opcodes.ACC_PUBLIC | Opcodes.ACC_STATIC,
            COBERTURA_CLASSMAP_METHOD_NAME + "_" + nr,
            "(" + Type.getType(LightClassmapListener.class).toString() + ")V", null, null);
    mv.visitCode();//from  w w w . j  a v  a  2 s .  c  om
    mv.visitVarInsn(Opcodes.ALOAD, 0);
    for (TouchPointDescriptor tpd : touchPointDescriptors) {
        mv.visitInsn(Opcodes.DUP);
        mv.visitLdcInsn(tpd.getLineNumber());
        if (tpd instanceof LineTouchPointDescriptor) {
            mv.visitLdcInsn(((LineTouchPointDescriptor) tpd).getCounterId());
            mv.visitLdcInsn(((LineTouchPointDescriptor) tpd).getMethodName());
            mv.visitLdcInsn(((LineTouchPointDescriptor) tpd).getMethodSignature());
            mv.visitMethodInsn(Opcodes.INVOKEINTERFACE, CLASSMAP_LISTENER_INTERNALNAME, "putLineTouchPoint",
                    "(IILjava/lang/String;Ljava/lang/String;)V");
        } else if (tpd instanceof JumpTouchPointDescriptor) {
            mv.visitLdcInsn(((JumpTouchPointDescriptor) tpd).getCounterIdForTrue());
            mv.visitLdcInsn(((JumpTouchPointDescriptor) tpd).getCounterIdForFalse());
            mv.visitMethodInsn(Opcodes.INVOKEINTERFACE, CLASSMAP_LISTENER_INTERNALNAME, "putJumpTouchPoint",
                    "(III)V");
        } else if (tpd instanceof SwitchTouchPointDescriptor) {
            SwitchTouchPointDescriptor stpd = (SwitchTouchPointDescriptor) tpd;
            final String enum_sign = ((SwitchTouchPointDescriptor) tpd).getEnumType();
            if (enum_sign == null) {
                mv.visitLdcInsn(Integer.MAX_VALUE);
            } else {
                mv.visitMethodInsn(Opcodes.INVOKESTATIC, enum_sign, "values", "()[L" + enum_sign + ";");
                mv.visitInsn(Opcodes.ARRAYLENGTH);
            }
            Collection<Integer> ci = stpd.getCountersForLabels();
            mv.visitLdcInsn(ci.size());//Size of a new table
            mv.visitIntInsn(Opcodes.NEWARRAY, Opcodes.T_INT);
            int i = 0;
            for (Integer counterId : ci) {
                mv.visitInsn(Opcodes.DUP); //First for addition of items, second ad putSwitchTouchPoint parameter (or next loop iteration)
                mv.visitLdcInsn(i);
                mv.visitLdcInsn(counterId);
                mv.visitInsn(Opcodes.IASTORE);
                i++;
            }
            mv.visitMethodInsn(Opcodes.INVOKEINTERFACE, CLASSMAP_LISTENER_INTERNALNAME, "putSwitchTouchPoint",
                    "(II[I)V");
        }
    }
    mv.visitInsn(Opcodes.POP);
    mv.visitInsn(Opcodes.RETURN);
    mv.visitMaxs(0, 0);//will be recalculated by writer
    mv.visitEnd();
}

From source file:net.sourceforge.cobertura.instrument.pass3.AbstractCodeProvider.java

License:GNU General Public License

public void generateCoberturaInitMethod(ClassVisitor cv, String className, int countersCnt) {
    MethodVisitor mv = cv.visitMethod(Opcodes.ACC_PUBLIC | Opcodes.ACC_STATIC, COBERTURA_INIT_METHOD_NAME,
            "()V", null, null);
    mv.visitCode();/*w  w w  .ja va  2s  .  c  o m*/
    generateCINITmethod(mv, className, countersCnt);
    mv.visitInsn(Opcodes.RETURN);
    mv.visitMaxs(0, 0); //will be recalculated by writer
    mv.visitEnd();
}

From source file:net.sourceforge.cobertura.instrument.pass3.AtomicArrayCodeProvider.java

License:GNU General Public License

/**
 * <pre>//from   w  ww .j a v a 2 s  .co m
 * int[] __cobertura_get_and_reset_counters() {
 * int[] res = new int[counters.length()];
 * for(int i=0; i<counters.length(); i++){
 * res[i]=counters.getAndSet(i, 0);
 * }
 * return res;
 * }
 * </pre>
 */
public void generateCoberturaGetAndResetCountersMethod(ClassVisitor cv, String className) {
    MethodVisitor mv = cv.visitMethod(Opcodes.ACC_PUBLIC | Opcodes.ACC_STATIC,
            COBERTURA_GET_AND_RESET_COUNTERS_METHOD_NAME, "()[I", null, null);

    mv.visitCode();
    mv.visitFieldInsn(Opcodes.GETSTATIC, className, COBERTURA_COUNTERS_FIELD_NAME,
            COBERTURA_COUNTERS_FIELD_TYPE);
    mv.visitMethodInsn(Opcodes.INVOKEVIRTUAL, "java/util/concurrent/atomic/AtomicIntegerArray", "length",
            "()I");
    mv.visitIntInsn(Opcodes.NEWARRAY, Opcodes.T_INT);
    mv.visitVarInsn(Opcodes.ASTORE, 0);
    mv.visitInsn(Opcodes.ICONST_0);
    mv.visitVarInsn(Opcodes.ISTORE, 1);
    Label l3 = new Label();
    mv.visitJumpInsn(Opcodes.GOTO, l3);
    Label l4 = new Label();
    mv.visitLabel(l4);
    mv.visitVarInsn(Opcodes.ALOAD, 0);
    mv.visitVarInsn(Opcodes.ILOAD, 1);
    mv.visitFieldInsn(Opcodes.GETSTATIC, className, COBERTURA_COUNTERS_FIELD_NAME,
            COBERTURA_COUNTERS_FIELD_TYPE);
    mv.visitVarInsn(Opcodes.ILOAD, 1);
    mv.visitInsn(Opcodes.ICONST_0);
    mv.visitMethodInsn(Opcodes.INVOKEVIRTUAL, "java/util/concurrent/atomic/AtomicIntegerArray", "getAndSet",
            "(II)I");
    mv.visitInsn(Opcodes.IASTORE);
    mv.visitIincInsn(1, 1);
    mv.visitLabel(l3);
    mv.visitVarInsn(Opcodes.ILOAD, 1);
    mv.visitFieldInsn(Opcodes.GETSTATIC, className, COBERTURA_COUNTERS_FIELD_NAME,
            COBERTURA_COUNTERS_FIELD_TYPE);
    mv.visitMethodInsn(Opcodes.INVOKEVIRTUAL, "java/util/concurrent/atomic/AtomicIntegerArray", "length",
            "()I");
    mv.visitJumpInsn(Opcodes.IF_ICMPLT, l4);
    mv.visitVarInsn(Opcodes.ALOAD, 0);
    mv.visitInsn(Opcodes.ARETURN);
    mv.visitMaxs(0, 0);//will be recalculated by writer
    mv.visitEnd();
}

From source file:net.sourceforge.cobertura.instrument.pass3.FastArrayCodeProvider.java

License:GNU General Public License

public void generateCoberturaGetAndResetCountersMethod(ClassVisitor cv, String className) {
    MethodVisitor mv = cv.visitMethod(Opcodes.ACC_PUBLIC | Opcodes.ACC_STATIC,
            COBERTURA_GET_AND_RESET_COUNTERS_METHOD_NAME, "()[I", null, null);
    mv.visitCode();/*from  w ww .j a  v a  2 s . c  om*/
    /*cobertura_counters.*/
    mv.visitFieldInsn(Opcodes.GETSTATIC, className, COBERTURA_COUNTERS_FIELD_NAME,
            COBERTURA_COUNTERS_FIELD_TYPE);
    mv.visitVarInsn(Opcodes.ASTORE, 0);
    /*cobertura_counters.*/
    mv.visitFieldInsn(Opcodes.GETSTATIC, className, COBERTURA_COUNTERS_FIELD_NAME,
            COBERTURA_COUNTERS_FIELD_TYPE);
    mv.visitInsn(Opcodes.ARRAYLENGTH);

    mv.visitIntInsn(Opcodes.NEWARRAY, Opcodes.T_INT);
    mv.visitFieldInsn(Opcodes.PUTSTATIC, className, COBERTURA_COUNTERS_FIELD_NAME,
            COBERTURA_COUNTERS_FIELD_TYPE);
    mv.visitVarInsn(Opcodes.ALOAD, 0);
    mv.visitInsn(Opcodes.ARETURN);
    mv.visitMaxs(0, 0);//will be recalculated by writer
    mv.visitEnd();
}

From source file:net.sourceforge.cobertura.instrument.pass3.InjectCodeClassInstrumenter.java

License:GNU General Public License

/**
 * <p>If there was no 'static initialization block' in the class, the method is responsible for generating the method.<br/>
 * It is also responsible for generating method that keeps mapping of counterIds into source places connected to them</p>
 *//*from  w  w w . j  a  v  a 2s  .c o m*/
@Override
public void visitEnd() {
    if (!wasStaticInitMethodVisited) {
        //We need to generate new method
        MethodVisitor mv = super.visitMethod(Opcodes.ACC_STATIC, "<clinit>", "()V", null, null);
        mv.visitCode();
        codeProvider.generateCallCoberturaInitMethod(mv, classMap.getClassName());
        mv.visitInsn(Opcodes.RETURN);
        mv.visitMaxs(/*stack*/3, /*local*/0);
        mv.visitEnd();
        wasStaticInitMethodVisited = true;
    }

    codeProvider.generateCoberturaInitMethod(cv, classMap.getClassName(), classMap.getMaxCounterId() + 1);
    codeProvider.generateCoberturaClassMapMethod(cv, classMap);
    codeProvider.generateCoberturaGetAndResetCountersMethod(cv, classMap.getClassName());

    super.visitEnd();
}

From source file:net.sourceforge.cobertura.instrument.pass3.TestUnitCodeProvider.java

License:GNU General Public License

/**
 * Generates://from  w  ww. ja va 2s  .  c om
 *   public static TestUnitInformationHolder[] __cobertura_get_and_reset_counters()
 *   {
 *     TestUnitInformationHolder[] local = __cobertura_counters;
 *     __cobertura_counters = new TestUnitInformationHolder[__cobertura_counters.length];
 *     return local;
 *   }
 */
public void generateCoberturaGetAndResetCountersMethod(ClassVisitor cv, String className) {
    MethodVisitor mv = cv.visitMethod(Opcodes.ACC_PUBLIC | Opcodes.ACC_STATIC,
            COBERTURA_GET_AND_RESET_COUNTERS_METHOD_NAME, "()" + COBERTURA_COUNTERS_FIELD_TYPE, null, null);
    mv.visitCode();
    /*cobertura_counters.*/
    mv.visitFieldInsn(Opcodes.GETSTATIC, className, COBERTURA_COUNTERS_FIELD_NAME,
            COBERTURA_COUNTERS_FIELD_TYPE);
    mv.visitVarInsn(Opcodes.ASTORE, 0);
    /*cobertura_counters.*/
    mv.visitFieldInsn(Opcodes.GETSTATIC, className, COBERTURA_COUNTERS_FIELD_NAME,
            COBERTURA_COUNTERS_FIELD_TYPE);
    mv.visitInsn(Opcodes.ARRAYLENGTH);

    mv.visitTypeInsn(Opcodes.ANEWARRAY, Type.getInternalName(TestUnitInformationHolder.class));
    mv.visitFieldInsn(Opcodes.PUTSTATIC, className, COBERTURA_COUNTERS_FIELD_NAME,
            COBERTURA_COUNTERS_FIELD_TYPE);
    mv.visitVarInsn(Opcodes.ALOAD, 0);
    mv.visitInsn(Opcodes.ARETURN);
    mv.visitMaxs(0, 0);//will be recalculated by writer
    mv.visitEnd();
}

From source file:net.techcable.event4j.asm.ASMEventExecutorFactory.java

License:Open Source License

private static byte[] generateEventExecutor(Method m, String name) {
    final boolean staticMethod = Modifier.isStatic(m.getModifiers());
    ClassWriter writer = new ClassWriter(ClassWriter.COMPUTE_FRAMES | ClassWriter.COMPUTE_MAXS);
    writer.visit(V1_8, ACC_PUBLIC, name, null, "java/lang/Object",
            new String[] { Type.getInternalName(EventExecutor.class) });
    // Generate constructor
    MethodVisitor methodGenerator = writer.visitMethod(ACC_PUBLIC, "<init>", "()V", null, null);
    methodGenerator.visitVarInsn(ALOAD, 0);
    methodGenerator.visitMethodInsn(INVOKESPECIAL, "java/lang/Object", "<init>", "()V", false); // Invoke the super class (Object) constructor
    methodGenerator.visitInsn(RETURN);// w  w w  .ja v a 2  s. c o  m
    methodGenerator.visitMaxs(1, 1);
    methodGenerator.visitEnd();
    // Generate the execute method
    methodGenerator = writer.visitMethod(ACC_PUBLIC, "fire", "(Ljava/lang/Object;Ljava/lang/Object;)V", null,
            null);
    if (!staticMethod) {
        methodGenerator.visitVarInsn(ALOAD, 1);
        methodGenerator.visitTypeInsn(CHECKCAST, Type.getInternalName(m.getDeclaringClass()));
    }
    methodGenerator.visitVarInsn(ALOAD, 2);
    methodGenerator.visitTypeInsn(CHECKCAST, Type.getInternalName(m.getParameterTypes()[0]));
    methodGenerator.visitMethodInsn(staticMethod ? INVOKESTATIC : INVOKEVIRTUAL,
            Type.getInternalName(m.getDeclaringClass()), m.getName(), Type.getMethodDescriptor(m),
            m.getDeclaringClass().isInterface());
    if (m.getReturnType() != void.class) {
        methodGenerator.visitInsn(POP);
    }
    methodGenerator.visitInsn(RETURN);
    methodGenerator.visitMaxs(staticMethod ? 1 : 2, 3);
    methodGenerator.visitEnd();
    writer.visitEnd();
    return writer.toByteArray();
}

From source file:net.wpm.reflectasm.ClassAccess.java

License:Open Source License

private static void insertConstructor(ClassWriter cw, String baseName) {
    MethodVisitor mv;
    mv = cw.visitMethod(ACC_PUBLIC, "<init>", "()V", null, null);
    mv.visitCode();//from   w  w  w .  java  2  s. c  o m
    mv.visitVarInsn(ALOAD, 0);
    mv.visitMethodInsn(INVOKESPECIAL, baseName, "<init>", "()V", false);
    mv.visitInsn(RETURN);
    mv.visitMaxs(0, 0);
    mv.visitEnd();
}