Examples with Label org.apache.xbean.asm6.Label used on opensource projects

Example 1 with Label

use of org.apache.xbean.asm6.Label in project jodd by oblac.

the class ProxettaAsmUtil method visitReturn.

// ---------------------------------------------------------------- return
/**
	 * Visits return opcodes.
	 */
public static void visitReturn(MethodVisitor mv, MethodInfo methodInfo, boolean isLast) {
    switch(methodInfo.getReturnOpcodeType()) {
        case 'V':
            if (isLast) {
                mv.visitInsn(POP);
            }
            mv.visitInsn(RETURN);
            break;
        case 'B':
            if (isLast) {
                mv.visitInsn(DUP);
                Label label = new Label();
                mv.visitJumpInsn(IFNONNULL, label);
                mv.visitInsn(POP);
                mv.visitInsn(ICONST_0);
                mv.visitInsn(IRETURN);
                mv.visitLabel(label);
                AsmUtil.byteValue(mv);
            }
            mv.visitInsn(IRETURN);
            break;
        case 'C':
            if (isLast) {
                mv.visitInsn(DUP);
                Label label = new Label();
                mv.visitJumpInsn(IFNONNULL, label);
                mv.visitInsn(POP);
                mv.visitInsn(ICONST_0);
                mv.visitInsn(IRETURN);
                mv.visitLabel(label);
                AsmUtil.charValue(mv);
            }
            mv.visitInsn(IRETURN);
            break;
        case 'S':
            if (isLast) {
                mv.visitInsn(DUP);
                Label label = new Label();
                mv.visitJumpInsn(IFNONNULL, label);
                mv.visitInsn(POP);
                mv.visitInsn(ICONST_0);
                mv.visitInsn(IRETURN);
                mv.visitLabel(label);
                AsmUtil.shortValue(mv);
            }
            mv.visitInsn(IRETURN);
            break;
        case 'I':
            if (isLast) {
                mv.visitInsn(DUP);
                Label label = new Label();
                mv.visitJumpInsn(IFNONNULL, label);
                mv.visitInsn(POP);
                mv.visitInsn(ICONST_0);
                mv.visitInsn(IRETURN);
                mv.visitLabel(label);
                AsmUtil.intValue(mv);
            }
            mv.visitInsn(IRETURN);
            break;
        case 'Z':
            if (isLast) {
                mv.visitInsn(DUP);
                Label label = new Label();
                mv.visitJumpInsn(IFNONNULL, label);
                mv.visitInsn(POP);
                mv.visitInsn(ICONST_0);
                mv.visitInsn(IRETURN);
                mv.visitLabel(label);
                AsmUtil.booleanValue(mv);
            }
            mv.visitInsn(IRETURN);
            break;
        case 'J':
            if (isLast) {
                mv.visitInsn(DUP);
                Label label = new Label();
                mv.visitJumpInsn(IFNONNULL, label);
                mv.visitInsn(POP);
                mv.visitInsn(LCONST_0);
                mv.visitInsn(LRETURN);
                mv.visitLabel(label);
                AsmUtil.longValue(mv);
            }
            mv.visitInsn(LRETURN);
            break;
        case 'F':
            if (isLast) {
                mv.visitInsn(DUP);
                Label label = new Label();
                mv.visitJumpInsn(IFNONNULL, label);
                mv.visitInsn(POP);
                mv.visitInsn(FCONST_0);
                mv.visitInsn(FRETURN);
                mv.visitLabel(label);
                AsmUtil.floatValue(mv);
            }
            mv.visitInsn(FRETURN);
            break;
        case 'D':
            if (isLast) {
                mv.visitInsn(DUP);
                Label label = new Label();
                mv.visitJumpInsn(IFNONNULL, label);
                mv.visitInsn(POP);
                mv.visitInsn(DCONST_0);
                mv.visitInsn(DRETURN);
                mv.visitLabel(label);
                AsmUtil.doubleValue(mv);
            }
            mv.visitInsn(DRETURN);
            break;
        default:
            mv.visitInsn(ARETURN);
            break;
    }
}

Example 2 with Label

use of org.apache.xbean.asm6.Label in project intellij-community by JetBrains.

the class AdvancedEnhancer method emitBindCallbacks.

private void emitBindCallbacks(ClassEmitter ce) {
    CodeEmitter e = ce.begin_method(Constants.PRIVATE_FINAL_STATIC, BIND_CALLBACKS, null);
    Local me = e.make_local();
    e.load_arg(0);
    e.checkcast_this();
    e.store_local(me);
    $Label end = e.make_label();
    e.load_local(me);
    e.getfield(BOUND_FIELD);
    e.if_jump(e.NE, end);
    e.load_local(me);
    e.push(1);
    e.putfield(BOUND_FIELD);
    e.getfield(THREAD_CALLBACKS_FIELD);
    e.invoke_virtual(THREAD_LOCAL, THREAD_LOCAL_GET);
    e.dup();
    $Label found_callback = e.make_label();
    e.ifnonnull(found_callback);
    e.pop();
    e.getfield(STATIC_CALLBACKS_FIELD);
    e.dup();
    e.ifnonnull(found_callback);
    e.pop();
    e.goTo(end);
    e.mark(found_callback);
    e.checkcast(CALLBACK_ARRAY);
    e.load_local(me);
    e.swap();
    for (int i = callbackTypes.length - 1; i >= 0; i--) {
        if (i != 0) {
            e.dup2();
        }
        e.aaload(i);
        e.checkcast(callbackTypes[i]);
        e.putfield(getCallbackField(i));
    }
    e.mark(end);
    e.return_value();
    e.end_method();
}

Example 3 with Label

use of org.apache.xbean.asm6.Label in project tomee by apache.

the class Cmp2Generator method createOpenEJB_removeCmr.

// private void createPrintln(MethodVisitor mv, String message) {
// mv.visitFieldInsn(GETSTATIC, "java/lang/System", "out", "Ljava/io/PrintStream;");
// mv.visitLdcInsn(message);
// mv.visitMethodInsn(INVOKEVIRTUAL, "java/io/PrintStream", "println", "(Ljava/lang/String;)V");
// }
// private void createPrintField(MethodVisitor mv, String fieldName, String descriptor) {
// mv.visitFieldInsn(GETSTATIC, "java/lang/System", "out", "Ljava/io/PrintStream;");
// mv.visitLdcInsn(fieldName + "=");
// mv.visitMethodInsn(INVOKEVIRTUAL, "java/io/PrintStream", "print", "(Ljava/lang/String;)V");
// 
// mv.visitFieldInsn(GETSTATIC, "java/lang/System", "out", "Ljava/io/PrintStream;");
// mv.visitVarInsn(ALOAD, 0);
// mv.visitFieldInsn(GETFIELD, implClassName, fieldName, descriptor);
// mv.visitMethodInsn(INVOKEVIRTUAL, "java/io/PrintStream", "println", "(Ljava/lang/Object;)V");
// }
/**
 * Emit the remove logic for an individual CMR field.
 * Like the addCmr logic, each field is guarded by an
 * if test on the property name.
 *
 * @param mv
 * @param cmrField
 */
private void createOpenEJB_removeCmr(final MethodVisitor mv, final CmrField cmrField) {
    // if (${cmrField.name}.equals(arg1))
    mv.visitLdcInsn(cmrField.getName());
    mv.visitVarInsn(ALOAD, 1);
    mv.visitMethodInsn(INVOKEVIRTUAL, "java/lang/String", "equals", "(Ljava/lang/Object;)Z", false);
    // if not equal jump to end
    final Label end = new Label();
    mv.visitJumpInsn(IFEQ, end);
    // collection valued CMR field.  Remove the object from the collection.
    if (cmrField.getCmrStyle() != CmrStyle.SINGLE) {
        // ${cmrField.name}.remove(arg2)
        mv.visitVarInsn(ALOAD, 0);
        mv.visitFieldInsn(GETFIELD, implClassName, cmrField.getName(), cmrField.getDescriptor());
        mv.visitVarInsn(ALOAD, 2);
        mv.visitMethodInsn(INVOKEINTERFACE, cmrField.getCmrStyle().getCollectionType().getInternalName(), "remove", "(Ljava/lang/Object;)Z", true);
        mv.visitInsn(POP);
        // return;
        mv.visitInsn(RETURN);
    } else {
        // single valued, so just null out the field.
        // this.${cmrField.name} = null;
        mv.visitVarInsn(ALOAD, 0);
        mv.visitInsn(ACONST_NULL);
        mv.visitFieldInsn(PUTFIELD, implClassName, cmrField.getName(), cmrField.getDescriptor());
        // return;
        mv.visitInsn(RETURN);
    }
    // end of if statement
    mv.visitLabel(end);
}

Example 4 with Label

use of org.apache.xbean.asm6.Label in project tomee by apache.

the class MakeTxLookup method createNewHibernateStrategy.

private static void createNewHibernateStrategy(final File basedir, final String target, final String abstractJtaPlatformPackage) throws Exception {
    final ClassWriter cw = new ClassWriter(0);
    MethodVisitor mv;
    cw.visit(V1_6, ACC_PUBLIC + ACC_SUPER, target.replace('.', '/'), null, abstractJtaPlatformPackage + "/AbstractJtaPlatform", null);
    {
        mv = cw.visitMethod(ACC_PUBLIC, "<init>", "()V", null, null);
        mv.visitCode();
        mv.visitVarInsn(ALOAD, 0);
        mv.visitMethodInsn(INVOKESPECIAL, abstractJtaPlatformPackage + "/AbstractJtaPlatform", "<init>", "()V", false);
        mv.visitInsn(RETURN);
        mv.visitMaxs(1, 1);
        mv.visitEnd();
    }
    {
        mv = cw.visitMethod(ACC_PROTECTED, "locateTransactionManager", "()Ljavax/transaction/TransactionManager;", null, null);
        mv.visitCode();
        mv.visitMethodInsn(INVOKESTATIC, "org/apache/openejb/OpenEJB", "getTransactionManager", "()Ljavax/transaction/TransactionManager;", false);
        mv.visitInsn(ARETURN);
        mv.visitMaxs(1, 1);
        mv.visitEnd();
    }
    {
        mv = cw.visitMethod(ACC_PROTECTED, "locateUserTransaction", "()Ljavax/transaction/UserTransaction;", null, null);
        mv.visitCode();
        final Label l0 = new Label();
        final Label l1 = new Label();
        final Label l2 = new Label();
        mv.visitTryCatchBlock(l0, l1, l2, "javax/naming/NamingException");
        mv.visitLabel(l0);
        mv.visitMethodInsn(INVOKESTATIC, "org/apache/openejb/loader/SystemInstance", "get", "()Lorg/apache/openejb/loader/SystemInstance;", false);
        mv.visitLdcInsn(Type.getType("Lorg/apache/openejb/spi/ContainerSystem;"));
        mv.visitMethodInsn(INVOKEVIRTUAL, "org/apache/openejb/loader/SystemInstance", "getComponent", "(Ljava/lang/Class;)Ljava/lang/Object;", false);
        mv.visitTypeInsn(CHECKCAST, "org/apache/openejb/spi/ContainerSystem");
        mv.visitMethodInsn(INVOKEINTERFACE, "org/apache/openejb/spi/ContainerSystem", "getJNDIContext", "()Ljavax/naming/Context;", true);
        mv.visitLdcInsn("comp/UserTransaction");
        mv.visitMethodInsn(INVOKEINTERFACE, "javax/naming/Context", "lookup", "(Ljava/lang/String;)Ljava/lang/Object;", true);
        mv.visitTypeInsn(CHECKCAST, "javax/transaction/UserTransaction");
        mv.visitLabel(l1);
        mv.visitInsn(ARETURN);
        mv.visitLabel(l2);
        mv.visitFrame(Opcodes.F_SAME1, 0, null, 1, new Object[] { "javax/naming/NamingException" });
        mv.visitVarInsn(ASTORE, 1);
        mv.visitInsn(ACONST_NULL);
        mv.visitInsn(ARETURN);
        mv.visitMaxs(2, 2);
        mv.visitEnd();
    }
    cw.visitEnd();
    write(basedir, cw, target.replace('.', '/'));
}

Example 5 with Label

use of org.apache.xbean.asm6.Label in project bgpcep by opendaylight.

the class Type1LabelParser method serializeLabel.

@Override
public void serializeLabel(final boolean unidirectional, final boolean global, final LabelType subobject, final ByteBuf buffer) {
    Preconditions.checkArgument(subobject instanceof Type1LabelCase, "Unknown Label Subobject instance. Passed {}. Needed Type1LabelCase.", subobject.getClass());
    final ByteBuf body = Unpooled.buffer(LABEL_LENGTH);
    final Type1Label type1Label = ((Type1LabelCase) subobject).getType1Label();
    Preconditions.checkArgument(type1Label != null, "Type1Label is mandatory.");
    writeUnsignedInt(type1Label.getType1Label(), body);
    LabelUtil.formatLabel(CTYPE, unidirectional, global, body, buffer);
}