Examples of org.apache.bcel.generic.SWAP

org.apache.bcel.generic.SWAP
SWAP - Swa top operand stack word
```
Stack: ..., word2, word1 -> ..., word1, word2
```
@version $Id: SWAP.java,v 1.1.1.1 2001/10/29 20:00:26 jvanzyl Exp $ @author M. Dahm

        Type[] arguments = invoke.getArgumentTypes(method.getConstantPool());
        // pop all arguments for the constructor from the stack
        for (int i = arguments.length - 1; i >= 0; i--) {
            Type type = arguments[i];
            insList.append(InstructionFactory.createLoad(STACK_TYPE, method.getMaxLocals()+1));
            insList.append(new SWAP());
            if (type instanceof BasicType) {
                if (type.getSize() < 2 && !type.equals(Type.FLOAT)) {
                    type = Type.INT;
                }
                insList.append(insFactory.createInvoke(STACK_CLASS, getPushMethod(type), Type.VOID, new Type[]{type}, Constants.INVOKEVIRTUAL));

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            if (type instanceof BasicType) {
                if (type.getSize() < 2 && !type.equals(Type.FLOAT)) {
                    type = Type.INT;
                }
                insList.append(InstructionFactory.createLoad(STACK_TYPE, method.getMaxLocals()+1));
                insList.append(new SWAP()); // TODO: check for types with two words on stack
                insList.append(insFactory.createInvoke(STACK_CLASS, getPushMethod(type), Type.VOID, new Type[]{type}, Constants.INVOKEVIRTUAL));
            } else if (type == null) {
                insList.append(InstructionConstants.POP);
            } else if (type instanceof UninitializedObjectType) {
                // After the remove of new, there shouldn't be a
                // uninitialized object on the stack
            } else if (type instanceof ReferenceType) {
                insList.append(InstructionFactory.createLoad(STACK_TYPE, method.getMaxLocals()+1));
                insList.append(new SWAP());
                insList.append(insFactory.createInvoke(STACK_CLASS, getPushMethod(Type.OBJECT), Type.VOID, new Type[]{Type.OBJECT}, Constants.INVOKEVIRTUAL));
            }
        }
        // add isCapturing test
        insList.insert(new IFEQ(handle.getNext()));

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        Type[] arguments = invoke.getArgumentTypes(method.getConstantPool());
        // pop all arguments for the constructor from the stack
        for (int i = arguments.length - 1; i >= 0; i--) {
            Type type = arguments[i];
            insList.append(InstructionFactory.createLoad(STACK_TYPE, method.getMaxLocals()+1));
            insList.append(new SWAP());
            if (type instanceof BasicType) {
                if (type.getSize() < 2 && !type.equals(Type.FLOAT)) {
                    type = Type.INT;
                }
                insList.append(insFactory.createInvoke(STACK_CLASS, getPushMethod(type), Type.VOID, new Type[]{type}, Constants.INVOKEVIRTUAL));

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            if (type instanceof BasicType) {
                if (type.getSize() < 2 && !type.equals(Type.FLOAT)) {
                    type = Type.INT;
                }
                insList.append(InstructionFactory.createLoad(STACK_TYPE, method.getMaxLocals()+1));
                insList.append(new SWAP()); // TODO: check for types with two words on stack
                insList.append(insFactory.createInvoke(STACK_CLASS, getPushMethod(type), Type.VOID, new Type[]{type}, Constants.INVOKEVIRTUAL));
            } else if (type == null) {
                insList.append(InstructionConstants.POP);
            } else if (type instanceof UninitializedObjectType) {
                // After the remove of new, there shouldn't be a
                // uninitialized object on the stack
            } else if (type instanceof ReferenceType) {
                insList.append(InstructionFactory.createLoad(STACK_TYPE, method.getMaxLocals()+1));
                insList.append(new SWAP());
                insList.append(insFactory.createInvoke(STACK_CLASS, getPushMethod(Type.OBJECT), Type.VOID, new Type[]{Type.OBJECT}, Constants.INVOKEVIRTUAL));
            }
        }
        // add isCapturing test
        insList.insert(new IFEQ(handle.getNext()));

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        Type[] arguments = invoke.getArgumentTypes(method.getConstantPool());
        // pop all arguments for the constructor from the stack
        for (int i = arguments.length - 1; i >= 0; i--) {
            Type type = arguments[i];
            insList.append(InstructionFactory.createLoad(STACK_TYPE, method.getMaxLocals()+1));
            insList.append(new SWAP());
            if (type instanceof BasicType) {
                if (type.getSize() < 2 && !type.equals(Type.FLOAT)) {
                    type = Type.INT;
                }
                insList.append(insFactory.createInvoke(STACK_CLASS, getPushMethod(type), Type.VOID, new Type[]{type}, Constants.INVOKEVIRTUAL));

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            if (type instanceof BasicType) {
                if (type.getSize() < 2 && !type.equals(Type.FLOAT)) {
                    type = Type.INT;
                }
                insList.append(InstructionFactory.createLoad(STACK_TYPE, method.getMaxLocals()+1));
                insList.append(new SWAP()); // TODO: check for types with two words on stack
                insList.append(insFactory.createInvoke(STACK_CLASS, getPushMethod(type), Type.VOID, new Type[]{type}, Constants.INVOKEVIRTUAL));
            } else if (type == null) {
                insList.append(InstructionConstants.POP);
            } else if (type instanceof UninitializedObjectType) {
                // After the remove of new, there shouldn't be a
                // uninitialized object on the stack
            } else if (type instanceof ReferenceType) {
                insList.append(InstructionFactory.createLoad(STACK_TYPE, method.getMaxLocals()+1));
                insList.append(new SWAP());
                insList.append(insFactory.createInvoke(STACK_CLASS, getPushMethod(Type.OBJECT), Type.VOID, new Type[]{Type.OBJECT}, Constants.INVOKEVIRTUAL));
            }
        }
        // add isCapturing test
        insList.insert(new IFEQ(handle.getNext()));

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org.apache.cocoon.components.flow.java.ContinuationClassLoader

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