spl_token_upgrade/
lib.rs

1//! Convention for upgrading tokens from one program to another
2#![deny(missing_docs)]
3#![forbid(unsafe_code)]
4
5mod entrypoint;
6pub mod error;
7pub mod instruction;
8pub mod processor;
9
10// Export current SDK types for downstream users building with a different SDK version
11pub use solana_program;
12use solana_program::pubkey::Pubkey;
13
14solana_program::declare_id!("TkupDoNseygccBCjSsrSpMccjwHfTYwcrjpnDSrFDhC");
15
16const TOKEN_ESCROW_AUTHORITY_SEED: &[u8] = b"token-escrow-authority";
17
18/// Get the upgrade token account authority
19pub fn get_token_upgrade_authority_address(
20    original_mint: &Pubkey,
21    new_mint: &Pubkey,
22    program_id: &Pubkey,
23) -> Pubkey {
24    get_token_upgrade_authority_address_and_bump_seed(original_mint, new_mint, program_id).0
25}
26
27pub(crate) fn get_token_upgrade_authority_address_and_bump_seed(
28    original_mint: &Pubkey,
29    new_mint: &Pubkey,
30    program_id: &Pubkey,
31) -> (Pubkey, u8) {
32    Pubkey::find_program_address(
33        &collect_token_upgrade_authority_seeds(original_mint, new_mint),
34        program_id,
35    )
36}
37
38pub(crate) fn collect_token_upgrade_authority_seeds<'a>(
39    original_mint: &'a Pubkey,
40    new_mint: &'a Pubkey,
41) -> [&'a [u8]; 3] {
42    [
43        TOKEN_ESCROW_AUTHORITY_SEED,
44        original_mint.as_ref(),
45        new_mint.as_ref(),
46    ]
47}
48
49pub(crate) fn collect_token_upgrade_authority_signer_seeds<'a>(
50    original_mint: &'a Pubkey,
51    new_mint: &'a Pubkey,
52    bump_seed: &'a [u8],
53) -> [&'a [u8]; 4] {
54    [
55        TOKEN_ESCROW_AUTHORITY_SEED,
56        original_mint.as_ref(),
57        new_mint.as_ref(),
58        bump_seed,
59    ]
60}
spl_token_upgrade/lib.rs

spl_token_upgrade/
lib.rs
