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
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
use super::*;
use core::fmt;
pub struct PosValue<T> {
pub val: T,
pub pos: u64
}
impl<T: BinRead> BinRead for PosValue<T> {
type Args = T::Args;
fn read_options<R: Read + Seek>(reader: &mut R, options: &ReadOptions, args: T::Args)
-> BinResult<Self>
{
let pos = reader.seek(SeekFrom::Current(0))?;
Ok(PosValue {
pos,
val: T::read_options(reader, options, args)?
})
}
fn after_parse<R: Read + Seek>(&mut self, reader: &mut R, options: &ReadOptions, args: Self::Args)
-> BinResult<()>
{
self.val.after_parse(reader, options, args)
}
}
impl<T> std::ops::Deref for PosValue<T> {
type Target = T;
fn deref(&self) -> &T {
&self.val
}
}
impl<T> std::ops::DerefMut for PosValue<T> {
fn deref_mut(&mut self) -> &mut T {
&mut self.val
}
}
impl<T: fmt::Debug> fmt::Debug for PosValue<T> {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
self.val.fmt(f)
}
}
impl<T: Clone> Clone for PosValue<T> {
fn clone(&self) -> Self {
Self {
val: self.val.clone(),
pos: self.pos
}
}
}
impl<U, T: PartialEq<U>> PartialEq<U> for PosValue<T> {
fn eq(&self, other: &U) -> bool {
self.val == *other
}
}