public void visitLdcInsn(final Object cst) {
        Item i = cw.newConstItem(cst);
        // Label currentBlock = this.currentBlock;
        if (currentBlock != null) {
            if (compute == FRAMES) {
                currentBlock.frame.execute(Opcodes.LDC, 0, cw, i);
            } else {
                int size;
                // computes the stack size variation
                if (i.type == ClassWriter.LONG || i.type == ClassWriter.DOUBLE)
                {
                    size = stackSize + 2;
                } else {
                    size = stackSize + 1;
                }
                // updates current and max stack sizes
                if (size > maxStackSize) {
                    maxStackSize = size;
                }
                stackSize = size;
            }
        }
        // adds the instruction to the bytecode of the method
        int index = i.index;
        if (i.type == ClassWriter.LONG || i.type == ClassWriter.DOUBLE) {
            code.put12(20 /* LDC2_W */, index);
        } else if (index >= 256) {
            code.put12(19 /* LDC_W */, index);
        } else {
            code.put11(Opcodes.LDC, index);
        }
    }