eosio_codegen/
fixedstring.rs

1const MAX_FIXED_STRING_SIZE: usize = 64;
2
3///
4#[derive(Debug, Copy, Clone, PartialEq, Eq, PartialOrd, Ord, Hash)]
5pub struct FixedString {
6    ///
7    pub buffer: [u8; MAX_FIXED_STRING_SIZE],
8    ///
9    pub length: usize
10}
11
12///
13impl FixedString {
14    ///
15    pub fn new(s: &str) -> Self {
16        let mut copy_size = s.len();
17        if copy_size > MAX_FIXED_STRING_SIZE {
18            copy_size = MAX_FIXED_STRING_SIZE;
19        }
20        let bytes = s.as_bytes();
21        let mut ret = Self {buffer: [0; MAX_FIXED_STRING_SIZE], length: copy_size};
22        for i in 0..copy_size {
23            ret.buffer[i] = bytes[i];
24        }
25        return ret;
26    }
27
28    pub fn from(v: &[u8]) -> Self {
29        let mut buffer: [u8; MAX_FIXED_STRING_SIZE] = [0; MAX_FIXED_STRING_SIZE];
30        let mut copy_size = v.len();
31        if copy_size > MAX_FIXED_STRING_SIZE {
32            copy_size = MAX_FIXED_STRING_SIZE;
33        }
34
35        for i in 0..copy_size {
36            buffer[i] = v[i];
37        }
38        Self {buffer: buffer, length: copy_size}
39    }
40
41    pub fn str(&self) -> String {
42        let mut v: Vec<u8> = vec![0; self.length];
43        for i in 0..self.length {
44            v[i] = self.buffer[i];
45        }
46        String::from_utf8(v).unwrap()
47    }
48}
eosio_codegen/fixedstring.rs

eosio_codegen/
fixedstring.rs
