evm-interpreter 1.1.0

The interpreter part of Ethereum Virtual Machine
Documentation 
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

macro_rules! try_or_fail {
	($e:expr) => {
		match $e {
			Ok(v) => v,
			Err(e) => return Control::Exit(e.into()),
		}
	};
}

macro_rules! pop_h256 {
	( $machine:expr, $( $x:ident ),* ) => (
		$(
			let $x = match $machine.stack.pop() {
				Ok(value) => value.to_h256(),
				Err(e) => return Control::Exit(e.into()),
			};
		)*
	);
}

macro_rules! pop_u256 {
	( $machine:expr, $( $x:ident ),* ) => (
		$(
			let $x = match $machine.stack.pop() {
				Ok(value) => value,
				Err(e) => return Control::Exit(e.into()),
			};
		)*
	);
}

macro_rules! push_h256 {
	( $machine:expr, $( $x:expr ),* ) => (
		$(
			match $machine.stack.push(U256::from_h256($x)) {
				Ok(()) => (),
				Err(e) => return Control::Exit(e.into()),
			}
		)*
	)
}

macro_rules! push_u256 {
	( $machine:expr, $( $x:expr ),* ) => (
		$(
			match $machine.stack.push($x) {
				Ok(()) => (),
				Err(e) => return Control::Exit(e.into()),
			}
		)*
	)
}

macro_rules! op1_u256_fn {
	($machine:expr, $op:path) => {{
		pop_u256!($machine, op1);
		let ret = $op(op1);
		push_u256!($machine, ret);

		Control::Continue(1)
	}};
}

macro_rules! op2_u256_bool_ref {
	($machine:expr, $op:ident) => {{
		pop_u256!($machine, op1, op2);
		let ret = op1.$op(&op2);
		push_u256!($machine, if ret { U256::ONE } else { U256::ZERO });

		Control::Continue(1)
	}};
}

macro_rules! op2_u256 {
	($machine:expr, $op:ident) => {{
		pop_u256!($machine, op1, op2);
		let ret = op1.$op(op2);
		push_u256!($machine, ret);

		Control::Continue(1)
	}};
}

macro_rules! op2_u256_tuple {
	($machine:expr, $op:ident) => {{
		pop_u256!($machine, op1, op2);
		let (ret, ..) = op1.$op(op2);
		push_u256!($machine, ret);

		Control::Continue(1)
	}};
}

macro_rules! op2_u256_fn {
	($machine:expr, $op:path) => {{
		pop_u256!($machine, op1, op2);
		let ret = $op(op1, op2);
		push_u256!($machine, ret);

		Control::Continue(1)
	}};
}

macro_rules! op3_u256_fn {
	($machine:expr, $op:path) => {{
		pop_u256!($machine, op1, op2, op3);
		let ret = $op(op1, op2, op3);
		push_u256!($machine, ret);

		Control::Continue(1)
	}};
}

macro_rules! as_usize_or_fail {
	($v:expr) => {{
		if $v > U256::USIZE_MAX {
			return Control::Exit(ExitFatal::NotSupported.into());
		}

		$v.low_usize()
	}};

	($v:expr, $reason:expr) => {{
		if $v > U256::USIZE_MAX {
			return Control::Exit($reason.into());
		}

		$v.low_usize()
	}};
}