1pub mod reader {
3 use solana_sdk::pubkey::Pubkey;
4 pub fn r_u8(data: &[u8], offset: usize) -> u8 {
5 if data.len() <= offset {
6 return 0;
7 }
8 data[offset]
9 }
10 pub fn r_u16(data: &[u8], offset: usize) -> u16 {
11 if data.len() < offset + 2 {
12 return 0;
13 }
14 u16::from_le_bytes(data[offset..offset + 2].try_into().unwrap())
15 }
16 pub fn r_u32(data: &[u8], offset: usize) -> u32 {
17 if data.len() < offset + 4 {
18 return 0;
19 }
20 u32::from_le_bytes(data[offset..offset + 4].try_into().unwrap())
21 }
22 pub fn r_u64(data: &[u8], offset: usize) -> u64 {
23 if data.len() < offset + 8 {
24 return 0;
25 }
26 u64::from_le_bytes(data[offset..offset + 8].try_into().unwrap())
27 }
28 pub fn r_u128(data: &[u8], offset: usize) -> u128 {
29 if data.len() < offset + 16 {
30 return 0;
31 }
32 u128::from_le_bytes(data[offset..offset + 16].try_into().unwrap())
33 }
34 pub fn r_pubkey(data: &[u8], offset: usize) -> Pubkey {
35 if data.len() < offset + 32 {
36 return Pubkey::default();
37 }
38 Pubkey::new_from_array(data[offset..offset + 32].try_into().unwrap())
39 }
40 pub fn r_string(data: &[u8], offset: usize) -> String {
41 if data.len() <= offset {
42 return String::new();
43 }
44
45 let len = data[offset] as usize;
46 if data.len() < offset + 1 + len {
47 return String::new();
48 }
49
50 String::from_utf8_lossy(&data[offset + 1..offset + 1 + len]).to_string()
51 }
52 pub fn r_bool(data: &[u8], offset: usize) -> bool {
53 r_u8(data, offset) != 0
54 }
55}
56
57pub mod account {}