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
use ic_types::Principal;
use std::convert::TryFrom;
pub mod call;
mod ic0;
pub fn print<S: std::convert::AsRef<str>>(s: S) {
let s = s.as_ref();
unsafe {
ic0::debug_print(s.as_ptr() as i32, s.len() as i32);
}
}
pub fn trap(message: &str) -> ! {
unsafe {
ic0::trap(message.as_ptr() as i32, message.len() as i32);
}
unreachable!()
}
pub fn time() -> i64 {
unsafe { ic0::time() }
}
pub fn caller() -> Principal {
let len: u32 = unsafe { ic0::msg_caller_size() as u32 };
let mut bytes = vec![0; len as usize];
unsafe {
ic0::msg_caller_copy(bytes.as_mut_ptr() as i32, 0, len as i32);
}
Principal::try_from(&bytes).unwrap()
}
pub fn id() -> Principal {
let len: u32 = unsafe { ic0::canister_self_size() as u32 };
let mut bytes = vec![0; len as usize];
unsafe {
ic0::canister_self_copy(bytes.as_mut_ptr() as i32, 0, len as i32);
}
Principal::try_from(&bytes).unwrap()
}
pub fn canister_balance(unit: call::funds::Unit) -> i64 {
let bytes = unit.to_bytes();
unsafe { ic0::canister_balance(bytes.as_ptr() as i32, bytes.len() as i32) }
}