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Panda Glue is a ASM/AOP module of the Panda Framework.

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package panda.aop.asm;

import java.lang.reflect.Method;

import panda.asm.Label;
import panda.asm.MethodVisitor;
import panda.asm.Type;

/**
 * @author wendal([email protected])
 */
class AopInvokeAdpter extends AopMethodAdapter {

	Method[] methodArray;

	AopInvokeAdpter(Method[] methodArray, MethodVisitor mv, int access, String methodName, String desc,
			int methodIndex, String myName, String enhancedSuperName) {
		super(mv, access, methodName, desc, methodIndex, myName, enhancedSuperName);
		this.methodArray = methodArray;
	}

	void visitCode() {
		mv.visitCode();

		for (int i = 0; i < methodArray.length; i++) {
			Method method = methodArray[i];
			mv.visitVarInsn(ILOAD, 1);
			visitX(i);
			Label l0 = new Label();
			mv.visitJumpInsn(IF_ICMPNE, l0);
			mv.visitVarInsn(ALOAD, 0);
			Type[] args = Type.getArgumentTypes(method);
			for (int j = 0; j < args.length; j++) {
				mv.visitVarInsn(ALOAD, 2);
				visitX(j);
				mv.visitInsn(AALOAD);
				returnType = args[j];
				AsmHelper.checkCast(returnType, mv);
			}
			mv.visitMethodInsn(INVOKESPECIAL, enhancedSuperName, method.getName(), Type.getMethodDescriptor(method));
			{
				returnType = Type.getReturnType(method);
				if (returnType.equals(Type.VOID_TYPE))
					mv.visitInsn(ACONST_NULL);
				else if (returnType.getOpcode(IRETURN) != ARETURN)
					AsmHelper.packagePrivateData(returnType, mv);
				mv.visitInsn(ARETURN);
			}
			mv.visitLabel(l0);
		}

		mv.visitInsn(ACONST_NULL);
		mv.visitInsn(ARETURN);
		mv.visitMaxs(4, 3);
		mv.visitEnd();
	}

}