otter_support/
debugmutex.rs

1
2use crate::prelude::*;
3
4#[derive(Debug, Default)]
5pub struct Mutex<T>(parking_lot::Mutex<T>);
6
7#[derive(Debug, Display)]
8pub struct MutexGuard<'g, T>(parking_lot::MutexGuard<'g, T>)
9where T: DebugIdentify;
10
11impl<T> Mutex<T> where T: DebugIdentify {
12  pub fn new(t: T) -> Self {
13    Mutex(parking_lot::Mutex::new(t))
14  }
15  pub fn lock(&self) -> MutexGuard<T> {
16    dbg!(dtype::<T>());
17    let r = MutexGuard(self.0.lock());
18    dbg!(dident(&*r));
19    r
20  }
21}
22
23impl<'g,T> Deref for MutexGuard<'g,T> where T: DebugIdentify {
24  type Target = T;
25  fn deref(&self) -> &T { &*self.0 }
26}
27impl<'g,T> DerefMut for MutexGuard<'g,T> where T: DebugIdentify {
28  fn deref_mut(&mut self) -> &mut T { &mut *self.0 }
29}
30
31impl<'g,T> Drop for MutexGuard<'g,T> where T: DebugIdentify {
32  fn drop(&mut self) {
33    dbg!(dident(&**self));
34  }
35}
36
37pub fn dtype<T: DebugIdentify>() -> impl Debug {
38  DebugFormatter(T::debug_identify_type)
39}
40pub fn dident<'t, T: DebugIdentify>(t: &'t T) -> impl Debug + 't {
41  DebugFormatter(move |f: &'_ mut fmt::Formatter<'_>| t.debug_identify(f))
42}
43
44pub struct DebugFormatter<C>(C);
45impl<C> Debug for DebugFormatter<C>
46where C: for<'f,'ff> Fn(&'f mut fmt::Formatter<'ff>) -> fmt::Result {
47  fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result { self.0(f) }
48}
49
50pub struct DebugDebugIdentify<'t,T>(&'t T) where T: DebugIdentify;
51impl<T> Debug for DebugDebugIdentify<'_,T> where T: DebugIdentify {
52  fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
53    self.0.debug_identify(f)
54  }
55}
56
57pub trait DebugIdentify {
58  fn debug_identify_type(f: &mut fmt::Formatter) -> fmt::Result;
59  fn debug_identify(&self, f: &mut fmt::Formatter) -> fmt::Result {
60    Self::debug_identify_type(f)?;
61    write!(f, "({:?})", self as *const _)?;
62    Ok(())
63  }
64}
65
66impl<T> DebugIdentify for Option<T> where T: DebugIdentify {
67  #[throws(fmt::Error)]
68  fn debug_identify_type(f: &mut fmt::Formatter) {
69    write!(f, "Option<{:?}>", DebugFormatter(T::debug_identify_type))?;
70  }
71
72  #[throws(fmt::Error)]
73  fn debug_identify(&self, f: &mut fmt::Formatter) {
74    match self {
75      None => write!(f, "None<{:?}>", DebugFormatter(T::debug_identify_type))?,
76      Some(t) => t.debug_identify(f)?,
77    }
78  }
79}
80
81impl<T> DebugIdentify for VecDeque<T> where T: DebugIdentify {
82  #[throws(fmt::Error)]
83  fn debug_identify_type(f: &mut fmt::Formatter) {
84    write!(f, "VecDeque<{:?}>", DebugFormatter(T::debug_identify_type))?;
85  }
86}
87
88impl DebugIdentify for File{
89  #[throws(fmt::Error)]
90  fn debug_identify_type(f: &mut fmt::Formatter) {
91    write!(f, "File")?;
92  }
93
94  #[throws(fmt::Error)]
95  fn debug_identify(&self, f: &mut fmt::Formatter) {
96    write!(f, "File({})", self.as_raw_fd())?;
97  }
98}
otter_support/debugmutex.rs

otter_support/
debugmutex.rs
