You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: table.rs
    path of file: ./repos/wasmer/lib/vm/src
    
    the code of the file until where you have to start completion: // This file contains code from external sources.
// Attributions: https://github.com/wasmerio/wasmer/blob/master/ATTRIBUTIONS.md

//! Memory management for tables.
//!
//! `Table` is to WebAssembly tables what `Memory` is to WebAssembly linear memories.

use crate::store::MaybeInstanceOwned;
use crate::vmcontext::VMTableDefinition;
use crate::Trap;
use crate::VMExternRef;
use crate::VMFuncRef;
use derivative::Derivative;
use std::cell::UnsafeCell;
use std::convert::TryFrom;
use std::fmt;
use std::ptr::NonNull;
use wasmer_types::TableStyle;
use wasmer_types::{TableType, TrapCode, Type as ValType};

/// A reference stored in a table. Can be either a
    
    pub fn grow(&mut self, delta: u32, init_value: TableElement) -> Option<u32> {
        let size = self.size();
        let new_len = size.checked_add(delta)?;
        if self.maximum.map_or(false, |max| new_len > max) {
            return None;
        }
        if new_len == size {
            debug_assert_eq!(delta, 0);
            return Some(size);
        }

        self.vec
            .resize(usize::try_from(new_len).unwrap(), init_value.into());

        // update table definition
        unsafe {
            let mut td_ptr = self.get_vm_table_definition();
            let td = td_ptr.as_mut();
            td.current_elements = new_len;
            td.base = self.vec.as_mut_ptr() as _;
        }
        Some(size)
    }