1 #![allow(
2 clippy::no_effect_underscore_binding,
3 clippy::too_many_lines,
4 clippy::used_underscore_binding
5 )]
6
7 #[rustfmt::skip]
8 mod gen;
9
10 use proc_macro2::{Ident, Literal, TokenStream};
11 use ref_cast::RefCast;
12 use std::fmt::{self, Debug};
13 use std::ops::Deref;
14 use syn::punctuated::Punctuated;
15
16 #[derive(RefCast)]
17 #[repr(transparent)]
18 pub struct Lite<T: ?Sized> {
19 value: T,
20 }
21
22 #[allow(non_snake_case)]
Lite<T: ?Sized>(value: &T) -> &Lite<T>23 pub fn Lite<T: ?Sized>(value: &T) -> &Lite<T> {
24 Lite::ref_cast(value)
25 }
26
27 impl<T: ?Sized> Deref for Lite<T> {
28 type Target = T;
29
deref(&self) -> &Self::Target30 fn deref(&self) -> &Self::Target {
31 &self.value
32 }
33 }
34
35 impl Debug for Lite<bool> {
fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result36 fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result {
37 write!(formatter, "{}", self.value)
38 }
39 }
40
41 impl Debug for Lite<u32> {
fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result42 fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result {
43 write!(formatter, "{}", self.value)
44 }
45 }
46
47 impl Debug for Lite<usize> {
fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result48 fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result {
49 write!(formatter, "{}", self.value)
50 }
51 }
52
53 impl Debug for Lite<String> {
fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result54 fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result {
55 write!(formatter, "{:?}", self.value)
56 }
57 }
58
59 impl Debug for Lite<Ident> {
fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result60 fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result {
61 write!(formatter, "{:?}", self.value.to_string())
62 }
63 }
64
65 impl Debug for Lite<Literal> {
fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result66 fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result {
67 write!(formatter, "{}", self.value)
68 }
69 }
70
71 impl Debug for Lite<TokenStream> {
fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result72 fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result {
73 let string = self.value.to_string();
74 if string.len() <= 80 {
75 write!(formatter, "TokenStream(`{}`)", self.value)
76 } else {
77 formatter
78 .debug_tuple("TokenStream")
79 .field(&format_args!("`{}`", string))
80 .finish()
81 }
82 }
83 }
84
85 impl<'a, T> Debug for Lite<&'a T>
86 where
87 Lite<T>: Debug,
88 {
fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result89 fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result {
90 Debug::fmt(Lite(&*self.value), formatter)
91 }
92 }
93
94 impl<T> Debug for Lite<Box<T>>
95 where
96 Lite<T>: Debug,
97 {
fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result98 fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result {
99 Debug::fmt(Lite(&*self.value), formatter)
100 }
101 }
102
103 impl<T> Debug for Lite<Vec<T>>
104 where
105 Lite<T>: Debug,
106 {
fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result107 fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result {
108 formatter
109 .debug_list()
110 .entries(self.value.iter().map(Lite))
111 .finish()
112 }
113 }
114
115 impl<T, P> Debug for Lite<Punctuated<T, P>>
116 where
117 Lite<T>: Debug,
118 {
fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result119 fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result {
120 formatter
121 .debug_list()
122 .entries(self.value.iter().map(Lite))
123 .finish()
124 }
125 }
126