evm-core 0.35.0

Portable Ethereum Virtual Machine implementation written in pure Rust.
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
131
132

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

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

macro_rules! pop_u256 {
	( $machine:expr, $( $x:ident ),* ) => (
		$(
			let $x = match $machine.stack.pop() {
				Ok(value) => U256::from_big_endian(&value[..]),
				Err(e) => return Control::Exit(e.into()),
			};
		)*
	);
}

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

macro_rules! push_u256 {
	( $machine:expr, $( $x:expr ),* ) => (
		$(
			let mut value = H256::default();
			$x.to_big_endian(&mut value[..]);
			match $machine.stack.push(value) {
				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::from(usize::MAX) {
			return Control::Exit(ExitFatal::NotSupported.into());
		}

		$v.as_usize()
	}};

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

		$v.as_usize()
	}};
}