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
use alloc::vec::Vec;
use core::u32;
use crate::{
bytesrepr::{self, FromBytes, ToBytes, U32_SERIALIZED_LENGTH},
CLType, CLTyped,
};
#[derive(PartialEq, Eq, Clone, Debug)]
pub struct CLTypeMismatch {
pub expected: CLType,
pub found: CLType,
}
#[derive(PartialEq, Eq, Clone, Debug)]
pub enum CLValueError {
Serialization(bytesrepr::Error),
Type(CLTypeMismatch),
}
#[derive(PartialEq, Eq, Clone, Debug)]
pub struct CLValue {
cl_type: CLType,
bytes: Vec<u8>,
}
impl CLValue {
pub fn from_t<T: CLTyped + ToBytes>(t: T) -> Result<CLValue, CLValueError> {
let bytes = t.into_bytes().map_err(CLValueError::Serialization)?;
Ok(CLValue {
cl_type: T::cl_type(),
bytes,
})
}
pub fn into_t<T: CLTyped + FromBytes>(self) -> Result<T, CLValueError> {
let expected = T::cl_type();
if self.cl_type == expected {
bytesrepr::deserialize(self.bytes).map_err(CLValueError::Serialization)
} else {
Err(CLValueError::Type(CLTypeMismatch {
expected,
found: self.cl_type,
}))
}
}
#[doc(hidden)]
pub fn from_components(cl_type: CLType, bytes: Vec<u8>) -> Self {
Self { cl_type, bytes }
}
#[doc(hidden)]
pub fn destructure(self) -> (CLType, Vec<u8>) {
(self.cl_type, self.bytes)
}
pub fn cl_type(&self) -> &CLType {
&self.cl_type
}
pub fn inner_bytes(&self) -> &Vec<u8> {
&self.bytes
}
pub fn serialized_len(&self) -> usize {
self.cl_type.serialized_len() + U32_SERIALIZED_LENGTH + self.bytes.len()
}
}
impl ToBytes for CLValue {
fn to_bytes(&self) -> Result<Vec<u8>, bytesrepr::Error> {
self.clone().into_bytes()
}
fn into_bytes(self) -> Result<Vec<u8>, bytesrepr::Error> {
let mut result = self.bytes.into_bytes()?;
self.cl_type.append_bytes(&mut result);
Ok(result)
}
}
impl FromBytes for CLValue {
fn from_bytes(bytes: &[u8]) -> Result<(Self, &[u8]), bytesrepr::Error> {
let (bytes, remainder) = Vec::<u8>::from_bytes(bytes)?;
let (cl_type, remainder) = CLType::from_bytes(remainder)?;
let cl_value = CLValue { cl_type, bytes };
Ok((cl_value, remainder))
}
}
impl ToBytes for Vec<CLValue> {
fn to_bytes(&self) -> Result<Vec<u8>, bytesrepr::Error> {
let serialized_len = self.iter().map(CLValue::serialized_len).sum();
if serialized_len > u32::max_value() as usize - U32_SERIALIZED_LENGTH {
return Err(bytesrepr::Error::OutOfMemory);
}
let mut result = Vec::with_capacity(serialized_len);
let len = self.len() as u32;
result.append(&mut len.to_bytes()?);
for cl_value in self {
result.append(&mut cl_value.to_bytes()?);
}
Ok(result)
}
fn into_bytes(self) -> Result<Vec<u8>, bytesrepr::Error> {
let serialized_len = self.iter().map(CLValue::serialized_len).sum();
if serialized_len > u32::max_value() as usize - U32_SERIALIZED_LENGTH {
return Err(bytesrepr::Error::OutOfMemory);
}
let mut result = Vec::with_capacity(serialized_len);
let len = self.len() as u32;
result.append(&mut len.to_bytes()?);
for cl_value in self {
result.append(&mut cl_value.into_bytes()?);
}
Ok(result)
}
}
impl FromBytes for Vec<CLValue> {
fn from_bytes(mut bytes: &[u8]) -> Result<(Self, &[u8]), bytesrepr::Error> {
let (len, remainder) = u32::from_bytes(bytes)?;
bytes = remainder;
let mut result = Vec::with_capacity(len as usize);
for _ in 0..len {
let (cl_value, remainder) = CLValue::from_bytes(bytes)?;
result.push(cl_value);
bytes = remainder;
}
Ok((result, bytes))
}
}