Solana Meme Token Smart contract in Rust.

Creating a complete Rust smart contract for Solana requires a deeper understanding of the Solana programming model and tools like the Solana SDK. However, I can provide you with a basic example to get you started. Keep in mind that this is a simple illustration, and you may need to adapt it based on your specific requirements.

Firstly, make sure you have the Solana SDK installed. You can find instructions on the official Solana documentation: https://docs.solana.com/cli/install-solana-cli-tools

Next, create a new Rust project using Cargo:

Next, create a new Rust project using Cargo:

cargo new ares_token
cd ares_token

Now, open the Cargo.toml file and add the necessary dependencies:

[package]
name = "ares_token"
version = "0.1.0"
edition = "2021"

[dependencies]
solana-program = "1.9.0"
solana-program-test = "1.9.0"
solana-sdk = { version = "1.9.0", features = ["full"] }

Now, replace the contents of src/lib.rs with the following code:

use solana_program::{
    account_info::{next_account_info, AccountInfo},
    entrypoint,
    entrypoint::ProgramResult,
    msg,
    program_error::ProgramError,
    pubkey::Pubkey,
    program_pack::{IsInitialized, Pack, Sealed},
    sysvar::{rent::Rent, Sysvar},
};

#[derive(Debug, PartialEq)]
struct AresToken {
    is_initialized: bool,
    supply: u64,
}
impl Sealed for AresToken {}
impl IsInitialized for AresToken {
    fn is_initialized(&self) -> bool {
        self.is_initialized
    }
}
impl Pack for AresToken {
    const LEN: usize = 9;
    fn unpack_from_slice(src: &[u8]) -> Result<Self, ProgramError> {
        let is_initialized = src[0] != 0;
        let supply = u64::from_le_bytes(src[1..9].try_into().unwrap());
        Ok(AresToken { is_initialized, supply })
    }
    fn pack_into_slice(&self, dst: &mut [u8]) {
        dst[0] = self.is_initialized as u8;
        dst[1..9].copy_from_slice(&self.supply.to_le_bytes());
    }
}
entrypoint!(process_instruction);
fn process_instruction(
    program_id: &Pubkey,
    accounts: &[AccountInfo],
    _instruction_data: &[u8],
) -> ProgramResult {
    msg!("Ares Token program entrypoint");
    let accounts_iter = &mut accounts.iter();
    let ares_account = next_account_info(accounts_iter)?;
    if ares_account.owner != program_id {
        msg!("Ares account does not have the correct program id");
        return Err(ProgramError::IncorrectProgramId);
    }
    let rent = &Rent::from_account_info(next_account_info(accounts_iter)?)?;
    if !ares_account.is_rent_exempt(rent) {
        msg!("Ares account is not rent exempt");
        return Err(ProgramError::AccountNotRentExempt);
    }
    let mut ares_token_data = AresToken::unpack_from_slice(&ares_account.data.borrow())?;
    if ares_token_data.is_initialized {
        msg!("Ares Token is already initialized");
        return Err(ProgramError::AccountAlreadyInitialized);
    }
    ares_token_data.is_initialized = true;
    ares_token_data.supply = 40_000_000 * 1_000_000; // 40M tokens with 6 decimal places
    AresToken::pack_into_slice(&ares_token_data, &mut ares_account.data.borrow_mut());
    Ok(())
}

This is a basic example that initializes an Ares Token account with a supply of 40 million tokens and 6 decimal places. Note that this is just a starting point, and you may need to extend and customize the contract based on your specific use case and requirements. Additionally, you’ll need to implement additional functionalities for token transfers, minting, and more as per the Solana token standard and your project’s needs.

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