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
use super::*;
impl<N: Network> Parser for Closure<N> {
#[inline]
fn parse(string: &str) -> ParserResult<Self> {
let (string, _) = Sanitizer::parse(string)?;
let (string, _) = tag(Self::type_name())(string)?;
let (string, _) = Sanitizer::parse_whitespaces(string)?;
let (string, name) = Identifier::<N>::parse(string)?;
let (string, _) = Sanitizer::parse_whitespaces(string)?;
let (string, _) = tag(":")(string)?;
let (string, inputs) = many0(Input::parse)(string)?;
let (string, instructions) = many1(Instruction::parse)(string)?;
let (string, outputs) = many0(Output::parse)(string)?;
map_res(take(0usize), move |_| {
let mut closure = Self::new(name);
inputs.iter().cloned().try_for_each(|input| closure.add_input(input))?;
instructions.iter().cloned().try_for_each(|instruction| closure.add_instruction(instruction))?;
outputs.iter().cloned().try_for_each(|output| closure.add_output(output))?;
Ok::<_, Error>(closure)
})(string)
}
}
impl<N: Network> FromStr for Closure<N> {
type Err = Error;
fn from_str(string: &str) -> Result<Self> {
match Self::parse(string) {
Ok((remainder, object)) => {
ensure!(remainder.is_empty(), "Failed to parse string. Found invalid character in: \"{remainder}\"");
Ok(object)
}
Err(error) => bail!("Failed to parse string. {error}"),
}
}
}
impl<N: Network> Debug for Closure<N> {
fn fmt(&self, f: &mut Formatter) -> fmt::Result {
Display::fmt(self, f)
}
}
impl<N: Network> Display for Closure<N> {
fn fmt(&self, f: &mut Formatter) -> fmt::Result {
write!(f, "{} {}:", Self::type_name(), self.name)?;
self.inputs.iter().try_for_each(|input| write!(f, "\n {}", input))?;
self.instructions.iter().try_for_each(|instruction| write!(f, "\n {}", instruction))?;
self.outputs.iter().try_for_each(|output| write!(f, "\n {}", output))
}
}
#[cfg(test)]
mod tests {
use super::*;
use console::network::Testnet3;
type CurrentNetwork = Testnet3;
#[test]
fn test_closure_parse() {
let closure = Closure::<CurrentNetwork>::parse(
r"
closure foo:
input r0 as field;
input r1 as field;
add r0 r1 into r2;
output r2 as field;",
)
.unwrap()
.1;
assert_eq!("foo", closure.name().to_string());
assert_eq!(2, closure.inputs.len());
assert_eq!(1, closure.instructions.len());
assert_eq!(1, closure.outputs.len());
}
#[test]
fn test_closure_parse_cast() {
let closure = Closure::<CurrentNetwork>::parse(
r"
closure foo:
input r0 as token.record;
cast r0.owner r0.gates r0.token_amount into r1 as token.record;
output r1 as token.record;",
)
.unwrap()
.1;
assert_eq!("foo", closure.name().to_string());
assert_eq!(1, closure.inputs.len());
assert_eq!(1, closure.instructions.len());
assert_eq!(1, closure.outputs.len());
}
#[test]
fn test_closure_display() {
let expected = r"closure foo:
input r0 as field;
input r1 as field;
add r0 r1 into r2;
output r2 as field;";
let closure = Closure::<CurrentNetwork>::parse(expected).unwrap().1;
assert_eq!(expected, format!("{closure}"),);
}
}