smelter-utils 1.0.1

Utils for building Smelter programs
Documentation 
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use solana_program::{account_info::AccountInfo, entrypoint::ProgramResult};

#[inline(always)]
pub fn create_ata<'info>(
    funder_info: &AccountInfo<'info>,
    owner_info: &AccountInfo<'info>,
    token_account_info: &AccountInfo<'info>,
    mint_info: &AccountInfo<'info>,
    system_program: &AccountInfo<'info>,
    token_program: &AccountInfo<'info>,
    associated_token_program: &AccountInfo<'info>,
) -> ProgramResult {
    solana_program::program::invoke(
        &spl_associated_token_account::instruction::create_associated_token_account(
            funder_info.key,
            owner_info.key,
            mint_info.key,
            &spl_token::id(),
        ),
        &[
            funder_info.clone(),
            token_account_info.clone(),
            owner_info.clone(),
            mint_info.clone(),
            system_program.clone(),
            token_program.clone(),
            associated_token_program.clone(),
        ],
    )
}

#[inline(always)]
pub fn transfer<'info>(
    authority_info: &AccountInfo<'info>,
    from_info: &AccountInfo<'info>,
    to_info: &AccountInfo<'info>,
    token_program: &AccountInfo<'info>,
    amount: u64,
) -> ProgramResult {
    solana_program::program::invoke(
        &spl_token::instruction::transfer(
            &spl_token::id(),
            from_info.key,
            to_info.key,
            authority_info.key,
            &[authority_info.key],
            amount,
        )?,
        &[
            token_program.clone(),
            from_info.clone(),
            to_info.clone(),
            authority_info.clone(),
        ],
    )
}

#[inline(always)]
pub fn transfer_signed<'info>(
    authority_info: &AccountInfo<'info>,
    from_info: &AccountInfo<'info>,
    to_info: &AccountInfo<'info>,
    token_program: &AccountInfo<'info>,
    amount: u64,
    signer_seeds: &[&[&[u8]]],
) -> ProgramResult {
    solana_program::program::invoke_signed(
        &spl_token::instruction::transfer(
            &spl_token::id(),
            from_info.key,
            to_info.key,
            authority_info.key,
            &[authority_info.key],
            amount,
        )?,
        &[
            token_program.clone(),
            from_info.clone(),
            to_info.clone(),
            authority_info.clone(),
        ],
        signer_seeds,
    )
}

#[inline(always)]
pub fn mint_to_signed<'info>(
    mint_info: &AccountInfo<'info>,
    to_info: &AccountInfo<'info>,
    authority_info: &AccountInfo<'info>,
    token_program: &AccountInfo<'info>,
    amount: u64,
    signer_seeds: &[&[&[u8]]],
) -> ProgramResult {
    solana_program::program::invoke_signed(
        &spl_token::instruction::mint_to(
            &spl_token::id(),
            mint_info.key,
            to_info.key,
            authority_info.key,
            &[authority_info.key],
            amount,
        )?,
        &[
            token_program.clone(),
            mint_info.clone(),
            to_info.clone(),
            authority_info.clone(),
        ],
        signer_seeds,
    )
}

#[inline(always)]
pub fn burn<'info>(
    token_account_info: &AccountInfo<'info>,
    mint_info: &AccountInfo<'info>,
    authority_info: &AccountInfo<'info>,
    token_program: &AccountInfo<'info>,
    amount: u64,
) -> ProgramResult {
    solana_program::program::invoke(
        &spl_token::instruction::burn(
            &spl_token::id(),
            token_account_info.key,
            mint_info.key,
            authority_info.key,
            &[authority_info.key],
            amount,
        )?,
        &[
            token_program.clone(),
            token_account_info.clone(),
            mint_info.clone(),
            authority_info.clone(),
        ],
    )
}