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
use cairo_lang_utils::ordered_hash_map::OrderedHashMap;
use crate::{
BlockId, FlatBlock, FlatBlockEnd, MatchEnumInfo, MatchExternInfo, MatchInfo, Statement,
StatementCall, StatementDesnap, StatementEnumConstruct, StatementLiteral, StatementSnapshot,
StatementStructConstruct, StatementStructDestructure, VarRemapping, VariableId,
};
pub trait Rebuilder {
fn map_var_id(&mut self, var: VariableId) -> VariableId;
fn map_block_id(&mut self, block: BlockId) -> BlockId;
fn transform_statement(&mut self, _statement: &mut Statement) {}
fn transform_remapping(&mut self, _remapping: &mut VarRemapping) {}
fn transform_end(&mut self, _end: &mut FlatBlockEnd) {}
fn transform_block(&mut self, _block: &mut FlatBlock) {}
}
pub trait RebuilderEx: Rebuilder {
fn rebuild_statement(&mut self, statement: &Statement) -> Statement {
let mut statement = match statement {
Statement::Literal(stmt) => Statement::Literal(StatementLiteral {
value: stmt.value.clone(),
output: self.map_var_id(stmt.output),
}),
Statement::Call(stmt) => Statement::Call(StatementCall {
function: stmt.function,
inputs: stmt.inputs.iter().map(|v| self.map_var_id(*v)).collect(),
outputs: stmt.outputs.iter().map(|v| self.map_var_id(*v)).collect(),
location: stmt.location,
}),
Statement::StructConstruct(stmt) => {
Statement::StructConstruct(StatementStructConstruct {
inputs: stmt.inputs.iter().map(|v| self.map_var_id(*v)).collect(),
output: self.map_var_id(stmt.output),
})
}
Statement::StructDestructure(stmt) => {
Statement::StructDestructure(StatementStructDestructure {
input: self.map_var_id(stmt.input),
outputs: stmt.outputs.iter().map(|v| self.map_var_id(*v)).collect(),
})
}
Statement::EnumConstruct(stmt) => Statement::EnumConstruct(StatementEnumConstruct {
variant: stmt.variant.clone(),
input: self.map_var_id(stmt.input),
output: self.map_var_id(stmt.output),
}),
Statement::Snapshot(stmt) => Statement::Snapshot(StatementSnapshot {
input: self.map_var_id(stmt.input),
output_original: self.map_var_id(stmt.output_original),
output_snapshot: self.map_var_id(stmt.output_snapshot),
}),
Statement::Desnap(stmt) => Statement::Desnap(StatementDesnap {
input: self.map_var_id(stmt.input),
output: self.map_var_id(stmt.output),
}),
};
self.transform_statement(&mut statement);
statement
}
fn rebuild_remapping(&mut self, remapping: &VarRemapping) -> VarRemapping {
let mut remapping = VarRemapping {
remapping: OrderedHashMap::from_iter(
remapping.iter().map(|(dst, src)| (self.map_var_id(*dst), self.map_var_id(*src))),
),
};
self.transform_remapping(&mut remapping);
remapping
}
fn rebuild_end(&mut self, end: &FlatBlockEnd) -> FlatBlockEnd {
let mut end = match end {
FlatBlockEnd::Return(returns) => FlatBlockEnd::Return(
returns.iter().map(|var_id| self.map_var_id(*var_id)).collect(),
),
FlatBlockEnd::Panic(data) => FlatBlockEnd::Panic(self.map_var_id(*data)),
FlatBlockEnd::Goto(block_id, remapping) => {
FlatBlockEnd::Goto(self.map_block_id(*block_id), self.rebuild_remapping(remapping))
}
FlatBlockEnd::NotSet => unreachable!(),
FlatBlockEnd::Match { info } => FlatBlockEnd::Match {
info: match info {
MatchInfo::Extern(stmt) => MatchInfo::Extern(MatchExternInfo {
function: stmt.function,
inputs: stmt.inputs.iter().map(|v| self.map_var_id(*v)).collect(),
arms: stmt
.arms
.iter()
.map(|(concrete_variant, block_id)| {
(concrete_variant.clone(), self.map_block_id(*block_id))
})
.collect(),
location: stmt.location,
}),
MatchInfo::Enum(stmt) => MatchInfo::Enum(MatchEnumInfo {
concrete_enum_id: stmt.concrete_enum_id,
input: self.map_var_id(stmt.input),
arms: stmt
.arms
.iter()
.map(|(concrete_variant, block_id)| {
(concrete_variant.clone(), self.map_block_id(*block_id))
})
.collect(),
}),
},
},
};
self.transform_end(&mut end);
end
}
fn rebuild_block(&mut self, block: &FlatBlock) -> FlatBlock {
let inputs = block.inputs.iter().map(|v| self.map_var_id(*v)).collect();
let mut statements = vec![];
for stmt in &block.statements {
statements.push(self.rebuild_statement(stmt));
}
let end = self.rebuild_end(&block.end);
let mut block = FlatBlock { inputs, statements, end };
self.transform_block(&mut block);
block
}
}
impl<T: Rebuilder> RebuilderEx for T {}