/** * {@inheritDoc} */ public int prepare(MethodVisitor methodVisitor) { StackSize stackSize; if (!instrumentedMethod.isStatic()) { methodVisitor.visitVarInsn(Opcodes.ALOAD, 0); methodVisitor.visitVarInsn(Opcodes.ASTORE, instrumentedMethod.getStackSize() + exitType.getStackSize().getSize() + StackSize.of(namedTypes.values()) + enterType.getStackSize().getSize()); stackSize = StackSize.SINGLE; } else { stackSize = StackSize.ZERO; } for (ParameterDescription parameterDescription : instrumentedMethod.getParameters()) { Type type = Type.getType(parameterDescription.getType().asErasure().getDescriptor()); methodVisitor.visitVarInsn(type.getOpcode(Opcodes.ILOAD), parameterDescription.getOffset()); methodVisitor.visitVarInsn(type.getOpcode(Opcodes.ISTORE), instrumentedMethod.getStackSize() + exitType.getStackSize().getSize() + StackSize.of(namedTypes.values()) + enterType.getStackSize().getSize() + parameterDescription.getOffset()); stackSize = stackSize.maximum(parameterDescription.getType().getStackSize()); } return stackSize.getSize(); } }