casper_contract_sdk_sys/
lib.rs

1pub mod for_each_host_function;
2
3#[repr(C)]
4pub struct Param {
5    pub name_ptr: *const u8,
6    pub name_len: usize,
7}
8
9/// Signature of a function pointer that a host understands.
10pub type Fptr = extern "C" fn() -> ();
11
12#[derive(Debug)]
13#[repr(C)]
14pub struct ReadInfo {
15    pub data: *const u8,
16    /// Size in bytes.
17    pub size: usize,
18}
19
20#[repr(C)]
21#[derive(Debug)]
22pub struct CreateResult {
23    pub contract_address: [u8; 32],
24}
25
26#[repr(C)]
27#[derive(Debug)]
28pub struct UpgradeResult {
29    pub package_address: [u8; 32],
30    pub contract_address: [u8; 32],
31    pub version: u32,
32}
33
34macro_rules! visit_host_function {
35    ( $( $(#[$cfg:meta])? $vis:vis fn $name:ident $(( $($arg:ident: $argty:ty,)* ))? $(-> $ret:ty)?;)+) => {
36        $(
37            $(#[$cfg])? $vis fn $name($($($arg: $argty,)*)?) $(-> $ret)?;
38        )*
39    }
40}
41
42extern "C" {
43    for_each_host_function!(visit_host_function);
44}
45
46macro_rules! visit_host_function_name {
47    ( $( $(#[$cfg:meta])? $vis:vis fn $name:ident $(( $($arg:ident: $argty:ty,)* ))? $(-> $ret:ty)?;)+) => {
48        &[
49            $(
50                stringify!($name),
51            )*
52        ]
53    }
54}
55
56pub const HOST_FUNCTIONS: &[&str] = for_each_host_function!(visit_host_function_name);
57
58#[cfg(test)]
59mod tests {
60    use std::collections::BTreeSet;
61
62    use crate::HOST_FUNCTIONS;
63
64    mod separate_module {
65        use crate::for_each_host_function;
66
67        macro_rules! visit_host_function {
68            ( $( $(#[$cfg:meta])? $vis:vis fn $name:ident $(( $($arg:ident: $argty:ty,)* ))? $(-> $ret:ty)?;)+) => {
69                $(
70                    #[allow(dead_code, unused_variables, clippy::too_many_arguments)]
71                    $(#[$cfg])? $vis fn $name($($($arg: $argty,)*)?) $(-> $ret)? {
72                        todo!("Called fn {}", stringify!($name));
73                    }
74                )*
75            }
76        }
77        for_each_host_function!(visit_host_function);
78    }
79
80    #[test]
81    #[should_panic(expected = "Called fn casper_print")]
82    fn different_module() {
83        const MSG: &str = "foobar";
84        separate_module::casper_print(MSG.as_ptr(), MSG.len());
85    }
86
87    #[test]
88    fn all_host_functions() {
89        let host_functions = BTreeSet::from_iter(HOST_FUNCTIONS);
90        assert!(host_functions.contains(&"casper_call"));
91    }
92}
casper_contract_sdk_sys/lib.rs

casper_contract_sdk_sys/
lib.rs
