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
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171

#[derive(Debug)]
pub struct ContextBuffer<B, C> {
    inner: B,
    context: C,
}

impl<B, C> ContextBuffer<B, C> {
    /// Creates a new [`ContextBuffer<B, C>`] instance.
    ///
    /// # Parameters
    /// * `inner`: The inner buffer type to wrap.
    /// * `context`: The context to provide.
    ///
    /// # Returns
    /// The created [`ContextBuffer<B, C>`] instance.
    #[inline]
    pub const fn new(inner: B, context: C) -> Self {
        Self { inner, context }
    }

    /// Gets the wrapped buffer.
    #[inline]
    pub const fn inner(&self) -> &B {
        &self.inner
    }

    /// Gets the wrapped context.
    #[inline]
    pub const fn context(&self) -> &C {
        &self.context
    }

    /// Gets the wrapped buffer and context, consuming `self`.
    #[inline]
    pub fn into_parts(self) -> (B, C) {
        (self.inner, self.context)
    }
}

impl<B, C> crate::bytes::Buf for ContextBuffer<B, C>
where
    B: crate::bytes::Buf,
{
    delegate::delegate! {
        to self.inner {
            fn remaining(&self) -> usize;
            fn chunk(&self) -> &[u8];
            fn advance(&mut self, cnt: usize);

            fn chunks_vectored<'a>(&'a self, dst: &mut [std::io::IoSlice<'a>]) -> usize;
            fn has_remaining(&self) -> bool;
            fn copy_to_slice(&mut self, dst: &mut [u8]);

            fn get_u8(&mut self) -> u8;
            fn get_i8(&mut self) -> i8;

            fn get_u16(&mut self) -> u16;
            fn get_u16_le(&mut self) -> u16;
            fn get_u16_ne(&mut self) -> u16;
            fn get_i16(&mut self) -> i16;
            fn get_i16_le(&mut self) -> i16;
            fn get_i16_ne(&mut self) -> i16;

            fn get_u32(&mut self) -> u32;
            fn get_u32_le(&mut self) -> u32;
            fn get_u32_ne(&mut self) -> u32;
            fn get_i32(&mut self) -> i32;
            fn get_i32_le(&mut self) -> i32;
            fn get_i32_ne(&mut self) -> i32;

            fn get_u64(&mut self) -> u64;
            fn get_u64_le(&mut self) -> u64;
            fn get_u64_ne(&mut self) -> u64;
            fn get_i64(&mut self) -> i64;
            fn get_i64_le(&mut self) -> i64;
            fn get_i64_ne(&mut self) -> i64;

            fn get_u128(&mut self) -> u128;
            fn get_u128_le(&mut self) -> u128;
            fn get_u128_ne(&mut self) -> u128;
            fn get_i128(&mut self) -> i128;
            fn get_i128_le(&mut self) -> i128;
            fn get_i128_ne(&mut self) -> i128;

            fn get_uint(&mut self, nbytes: usize) -> u64;
            fn get_uint_le(&mut self, nbytes: usize) -> u64;
            fn get_uint_ne(&mut self, nbytes: usize) -> u64;
            fn get_int(&mut self, nbytes: usize) -> i64;
            fn get_int_le(&mut self, nbytes: usize) -> i64;
            fn get_int_ne(&mut self, nbytes: usize) -> i64;

            fn get_f32(&mut self) -> f32;
            fn get_f32_le(&mut self) -> f32;
            fn get_f32_ne(&mut self) -> f32;

            fn get_f64(&mut self) -> f64;
            fn get_f64_le(&mut self) -> f64;
            fn get_f64_ne(&mut self) -> f64;

            fn copy_to_bytes(&mut self, len: usize) -> bytes::Bytes;
        }

    }
}

unsafe impl<B, C> crate::bytes::BufMut for ContextBuffer<B, C>
where
    B: crate::bytes::BufMut,
{
    delegate::delegate! {
        to self.inner {
            fn remaining_mut(&self) -> usize;
            unsafe fn advance_mut(&mut self, cnt: usize);
            fn chunk_mut(&mut self) -> &mut bytes::buf::UninitSlice;
            fn has_remaining_mut(&self) -> bool;

            fn put<T: bytes::buf::Buf>(&mut self, src: T)
            where
                Self: Sized;

            fn put_slice(&mut self, src: &[u8]);
            fn put_bytes(&mut self, val: u8, cnt: usize);

            fn put_u8(&mut self, n: u8);
            fn put_i8(&mut self, n: i8);

            fn put_u16(&mut self, n: u16);
            fn put_u16_le(&mut self, n: u16);
            fn put_u16_ne(&mut self, n: u16);
            fn put_i16(&mut self, n: i16);
            fn put_i16_le(&mut self, n: i16);
            fn put_i16_ne(&mut self, n: i16);

            fn put_u32(&mut self, n: u32);
            fn put_u32_le(&mut self, n: u32);
            fn put_u32_ne(&mut self, n: u32);
            fn put_i32(&mut self, n: i32);
            fn put_i32_le(&mut self, n: i32);
            fn put_i32_ne(&mut self, n: i32);

            fn put_u64(&mut self, n: u64);
            fn put_u64_le(&mut self, n: u64);
            fn put_u64_ne(&mut self, n: u64);
            fn put_i64(&mut self, n: i64);
            fn put_i64_le(&mut self, n: i64);
            fn put_i64_ne(&mut self, n: i64);

            fn put_u128(&mut self, n: u128);
            fn put_u128_le(&mut self, n: u128);
            fn put_u128_ne(&mut self, n: u128);
            fn put_i128(&mut self, n: i128);
            fn put_i128_le(&mut self, n: i128);
            fn put_i128_ne(&mut self, n: i128);

            fn put_uint(&mut self, n: u64, nbytes: usize);
            fn put_uint_le(&mut self, n: u64, nbytes: usize);
            fn put_uint_ne(&mut self, n: u64, nbytes: usize);
            fn put_int(&mut self, n: i64, nbytes: usize);
            fn put_int_le(&mut self, n: i64, nbytes: usize);
            fn put_int_ne(&mut self, n: i64, nbytes: usize);

            fn put_f32(&mut self, n: f32);
            fn put_f32_le(&mut self, n: f32);
            fn put_f32_ne(&mut self, n: f32);

            fn put_f64(&mut self, n: f64);
            fn put_f64_le(&mut self, n: f64);
            fn put_f64_ne(&mut self, n: f64);
        }
    }
}