steel 4.0.9

Solana smart contract framework
Documentation 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43

use solana_program::{program_option::COption, pubkey::Pubkey};

pub enum Mint {
    V0(spl_token::state::Mint),
    V1(spl_token_2022::state::Mint),
}

impl Mint {
    pub fn mint_authority(&self) -> COption<Pubkey> {
        match self {
            Mint::V0(mint) => mint.mint_authority,
            Mint::V1(mint) => mint.mint_authority,
        }
    }

    pub fn supply(&self) -> u64 {
        match self {
            Mint::V0(mint) => mint.supply,
            Mint::V1(mint) => mint.supply,
        }
    }

    pub fn decimals(&self) -> u8 {
        match self {
            Mint::V0(mint) => mint.decimals,
            Mint::V1(mint) => mint.decimals,
        }
    }

    pub fn is_initialized(&self) -> bool {
        match self {
            Mint::V0(mint) => mint.is_initialized,
            Mint::V1(mint) => mint.is_initialized,
        }
    }

    pub fn freeze_authority(&self) -> COption<Pubkey> {
        match self {
            Mint::V0(mint) => mint.freeze_authority,
            Mint::V1(mint) => mint.freeze_authority,
        }
    }
}