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
|
use crate::prelude::*;
use super::{prim::VarInt, Deserialize, Deserializer};
macro_rules! error {
($($arg:tt)*) => {
exception!(BINARY_EXCEPTION, $($arg)*)
};
}
impl Deserialize for Program {
fn deserialize<S: Deserializer>(s: &mut S) -> Result<Self> {
for _ in 0..5 { s.read::<u8>()?; } // skip header
let version: u8 = s.read()?;
if version != 0 {
return Err(error!("invalid program version {version}"))
}
let fun = <Rc<Function>>::deserialize(s)?;
Ok(Self { version, fun })
}
}
impl Deserialize for Instruction {
fn deserialize<S: Deserializer>(s: &mut S) -> Result<Self> {
use Instruction as I;
let ins: u8 = s.read()?;
let ins = match ins {
0 => I::NoOp,
1 => I::CreateLocal,
2 => I::LoadLocal(s.read()?),
3 => I::StoreLocal(s.read()?),
4 => I::DiscardLocals(s.read()?),
5 => I::LoadGlobal(s.read()?),
6 => I::StoreGlobal(s.read()?),
7 => I::Const(s.read()?),
8 => I::Int(s.read()?),
9 => I::True,
10 => I::False,
11 => I::Nil,
12 => I::Dup,
13 => I::Discard(s.read()?),
14 => I::UnaryOp(UnaryOp::try_from(s.read::<u8>()?)?),
15 => I::BinaryOp(BinaryOp::try_from(s.read::<u8>()?)?),
16 => I::NewList(s.read()?),
17 => I::NewTable(s.read()?),
18 => I::NewMatrix(s.read()?, s.read()?),
19 => I::Field(s.read()?),
20 => I::StoreField(s.read()?),
21 => I::Index(s.read()?),
22 => I::StoreIndex(s.read()?),
23 => I::Jump(s.read()?),
24 => I::JumpTrue(s.read()?),
25 => I::JumpFalse(s.read()?),
26 => I::JumpNil(s.read()?),
27 => I::IterCreate,
28 => I::IterNext,
29 => I::Try(s.read()?),
30 => I::TryEnd,
31 => I::Call(s.read()?),
32 => I::Return,
n => return Err(error!("invalid instruction op code {n}"))
};
Ok(ins)
}
}
impl<T: Deserialize> Deserialize for Vec<T> {
fn deserialize<S: Deserializer>(s: &mut S) -> Result<Self> {
let len = s.read::<VarInt>()?.0;
let mut vec = Vec::with_capacity(len);
for _ in 0..len {
let v = T::deserialize(s)?;
vec.push(v);
}
Ok(vec)
}
}
impl<T: Deserialize> Deserialize for Gc<T> {
fn deserialize<S: Deserializer>(s: &mut S) -> Result<Self> {
Ok(Gc::new(T::deserialize(s)?))
}
}
impl<T: Deserialize> Deserialize for Rc<T> {
fn deserialize<S: Deserializer>(s: &mut S) -> Result<Self> {
Ok(Rc::new(T::deserialize(s)?))
}
}
impl Deserialize for Position {
fn deserialize<S: Deserializer>(s: &mut S) -> Result<Self> {
let row = s.read::<VarInt>()?.0;
let col = s.read::<VarInt>()?.0;
Ok(Self { row, col })
}
}
impl Deserialize for Chunk {
fn deserialize<S: Deserializer>(s: &mut S) -> Result<Self> {
let constants = <Vec<Value>>::deserialize(s)?;
let code = <Vec<Instruction>>::deserialize(s)?;
let pos = <Vec<Position>>::deserialize(s)?;
Ok(Self { constants, code, pos })
}
}
impl Deserialize for Value {
fn deserialize<S: Deserializer>(s: &mut S) -> Result<Self> {
use Value as V;
let ty = s.read::<u8>()?;
let value = match ty {
0 => V::Nil,
1 => V::Bool(s.read()?),
2 => V::Int(s.read()?),
3 => V::Float(s.read()?),
4 => V::Ratio(Rational64::new(s.read()?, s.read()?)),
5 => V::Complex(Complex64::new(s.read()?, s.read()?)),
6 => V::to_regex(s.read::<String>()?.as_str())?,
7 => V::String(s.read::<String>()?.into()),
8 => V::List(<Vec<Value>>::deserialize(s)?.into()),
9 => {
let domain = s.read()?;
let codomain = s.read()?;
let values = <Vec<Value>>::deserialize(s)?;
V::Matrix(Matrix::new(domain, codomain, values).into())
},
10 => {
let len = s.read::<VarInt>()?.0;
let mut table = ValueMap::new();
for _ in 0..len {
let key = <Value>::deserialize(s)?;
let value = <Value>::deserialize(s)?;
table.insert(key, value)?;
}
V::Table(table.into())
},
11 => V::Function(<Rc<Function>>::deserialize(s)?),
12 => V::Range((s.read()?, s.read()?, s.read()?).into()),
13 => V::Iter(<Rc<Function>>::deserialize(s)?),
n => return Err(error!("invalid value code {n}"))
};
Ok(value)
}
}
impl Deserialize for Function {
fn deserialize<S: Deserializer>(s: &mut S) -> Result<Self> {
let name = s.read::<String>()?;
let arity = s.read()?;
let variadic = s.read()?;
let chunk = <Chunk>::deserialize(s)?;
Ok(Function {
name: Rc::from(name.as_str()),
arity,
variadic,
fun: InnerFunction::Compiled(chunk.into())
})
}
}
|
