aoe2_probe/parse/
code.rs

1use crate::io::Source;
2
3use super::Token;
4
5const BYTE_LEN_FOR_8: usize = 1;
6const BYTE_LEN_FOR_16: usize = 2;
7const BYTE_LEN_FOR_32: usize = 4;
8const BYTE_LEN_FOR_64: usize = 8;
9
10pub trait Encode {
11    fn to_le_vec(&self) -> Vec<u8>;
12}
13
14impl Encode for u16 {
15    fn to_le_vec(&self) -> Vec<u8> {
16        self.to_le_bytes().to_vec()
17    }
18}
19
20impl Encode for u32 {
21    fn to_le_vec(&self) -> Vec<u8> {
22        self.to_le_bytes().to_vec()
23    }
24}
25
26impl Encode for Vec<Token> {
27    fn to_le_vec(&self) -> Vec<u8> {
28        self.iter().flat_map(|token| token.to_le_vec()).collect()
29    }
30}
31
32pub trait Decode {
33    fn from_le_vec(source: &mut Source) -> Result<Self, String>
34    where
35        Self: Sized;
36}
37
38impl Decode for u8 {
39    fn from_le_vec(source: &mut Source) -> Result<Self, String> {
40        let mut temp: [u8; BYTE_LEN_FOR_8] = [0; BYTE_LEN_FOR_8];
41        temp.copy_from_slice(&source.get_vec(BYTE_LEN_FOR_8)?[..]);
42        Ok(u8::from_le_bytes(temp))
43    }
44}
45
46impl Decode for u16 {
47    fn from_le_vec(source: &mut Source) -> Result<Self, String> {
48        let mut temp: [u8; BYTE_LEN_FOR_16] = [0; BYTE_LEN_FOR_16];
49        temp.copy_from_slice(&source.get_vec(BYTE_LEN_FOR_16)?[..]);
50        Ok(u16::from_le_bytes(temp))
51    }
52}
53
54impl Decode for u32 {
55    fn from_le_vec(source: &mut Source) -> Result<Self, String> {
56        let mut temp: [u8; BYTE_LEN_FOR_32] = [0; BYTE_LEN_FOR_32];
57        temp.copy_from_slice(&source.get_vec(BYTE_LEN_FOR_32)?[..]);
58        Ok(u32::from_le_bytes(temp))
59    }
60}
61
62impl Decode for i8 {
63    fn from_le_vec(source: &mut Source) -> Result<Self, String> {
64        let mut temp: [u8; BYTE_LEN_FOR_8] = [0; BYTE_LEN_FOR_8];
65        temp.copy_from_slice(&source.get_vec(BYTE_LEN_FOR_8)?[..]);
66        Ok(i8::from_le_bytes(temp))
67    }
68}
69
70impl Decode for i16 {
71    fn from_le_vec(source: &mut Source) -> Result<Self, String> {
72        let mut temp: [u8; BYTE_LEN_FOR_16] = [0; BYTE_LEN_FOR_16];
73        temp.copy_from_slice(&source.get_vec(BYTE_LEN_FOR_16)?[..]);
74        Ok(i16::from_le_bytes(temp))
75    }
76}
77
78impl Decode for i32 {
79    fn from_le_vec(source: &mut Source) -> Result<Self, String> {
80        let mut temp: [u8; BYTE_LEN_FOR_32] = [0; BYTE_LEN_FOR_32];
81        temp.copy_from_slice(&source.get_vec(BYTE_LEN_FOR_32)?[..]);
82        Ok(i32::from_le_bytes(temp))
83    }
84}
85
86impl Decode for f32 {
87    fn from_le_vec(source: &mut Source) -> Result<Self, String> {
88        let mut temp: [u8; BYTE_LEN_FOR_32] = [0; BYTE_LEN_FOR_32];
89        temp.copy_from_slice(&source.get_vec(BYTE_LEN_FOR_32)?[..]);
90        Ok(f32::from_le_bytes(temp))
91    }
92}
93
94impl Decode for f64 {
95    fn from_le_vec(source: &mut Source) -> Result<Self, String> {
96        let mut temp: [u8; BYTE_LEN_FOR_64] = [0; BYTE_LEN_FOR_64];
97        temp.copy_from_slice(&source.get_vec(BYTE_LEN_FOR_64)?[..]);
98        Ok(f64::from_le_bytes(temp))
99    }
100}