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
133
134
135
pub use holochain_wasmer_common::allocation;
pub use holochain_wasmer_common::bytes;
pub use holochain_wasmer_common::json;
pub use holochain_wasmer_common::string;
pub use holochain_wasmer_common::*;
#[macro_export]
macro_rules! memory_externs {
() => {
extern "C" {
fn __import_allocation(
guest_allocation_ptr: AllocationPtr,
host_allocation_ptr: AllocationPtr,
);
fn __import_bytes(host_allocation_ptr: AllocationPtr, guest_bytes_ptr: Ptr);
}
};
}
memory_externs!();
#[macro_export]
macro_rules! host_externs {
( $( $func_name:ident ),* ) => {
extern "C" {
$( fn $func_name(guest_allocation_ptr: $crate::AllocationPtr) -> $crate::AllocationPtr; )*
}
};
}
pub fn map_bytes(host_allocation_ptr: Ptr) -> AllocationPtr {
let tmp_allocation_ptr = allocation::allocate(allocation::ALLOCATION_BYTES_ITEMS as Len);
unsafe {
__import_allocation(tmp_allocation_ptr, host_allocation_ptr);
};
let [_, len] = allocation::from_allocation_ptr(tmp_allocation_ptr);
allocation::deallocate(tmp_allocation_ptr, len);
let guest_bytes_ptr = allocation::allocate(len);
unsafe {
__import_bytes(host_allocation_ptr, guest_bytes_ptr);
};
allocation::to_allocation_ptr([guest_bytes_ptr, len])
}
#[macro_export]
macro_rules! host_args {
( $ptr:ident ) => {{
use std::convert::TryInto;
match $crate::json::from_allocation_ptr(holochain_wasmer_guest::map_bytes($ptr)).try_into()
{
Ok(v) => v,
Err(_) => {
$crate::allocation::deallocate_from_allocation_ptr($ptr);
return $crate::json::to_allocation_ptr(
$crate::result::WasmResult::Err(
$crate::result::WasmError::ArgumentDeserializationFailed,
)
.into(),
);
}
}
}};
}
#[macro_export]
macro_rules! host_bytes {
( $ptr:ident ) => {{
$crate::bytes::from_allocation_ptr($crate::map_bytes($ptr))
}};
}
#[macro_export]
macro_rules! host_string {
( $ptr:ident ) => {{
$crate::string::from_allocation_ptr($crate::map_bytes($ptr))
}};
}
#[macro_export]
macro_rules! host_call_bytes {
( $func_name:ident, $input:expr ) => {{
let result_host_allocation_ptr =
unsafe { $func_name($crate::bytes::to_allocation_ptr($input)) };
host_bytes!(result_host_allocation_ptr)
}};
}
#[macro_export]
macro_rules! host_call {
( $func_name:ident, $input:expr ) => {{
use std::convert::TryInto;
let json: $crate::JsonString = $input.into();
let bytes = json.to_bytes();
let result_bytes = $crate::host_call_bytes!($func_name, bytes);
$crate::JsonString::from_bytes(result_bytes).try_into()
}};
}
#[macro_export]
macro_rules! ret {
( $e: expr) => {{
let json_string: $crate::JsonString = ($e).into();
return $crate::json::to_allocation_ptr($crate::WasmResult::Ok(json_string).into());
}};
}
#[macro_export]
macro_rules! ret_err {
( $fail:literal ) => {{
return $crate::json::to_allocation_ptr(
$crate::WasmResult::Err($crate::WasmError::Zome($fail.into())).into(),
);
}};
}
#[macro_export]
macro_rules! try_result {
( $e:expr, $fail:literal ) => {{
match $e {
Ok(v) => v,
Err(_) => $crate::ret_err!($fail),
}
}};
}