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
pub use cffi_impl::marshal;
#[cfg(feature = "url")]
mod url;
mod arc;
mod arc_ref;
mod bool;
mod box_ref;
mod boxed;
mod copy;
mod pathbuf;
mod str;
mod string;
mod unit;
mod vec;
mod vec_ref;
#[cfg(feature = "url")]
pub use self::url::UrlMarshaler;
pub use self::bool::BoolMarshaler;
pub use self::pathbuf::PathBufMarshaler;
pub use self::str::StrMarshaler;
pub use self::vec::VecMarshaler;
pub use arc::ArcMarshaler;
pub use arc_ref::ArcRefMarshaler;
pub use box_ref::BoxRefMarshaler;
pub use boxed::BoxMarshaler;
pub use copy::CopyMarshaler;
pub use string::StringMarshaler;
pub use unit::UnitMarshaler;
pub use vec_ref::VecRefMarshaler;
use std::io;
pub type ErrCallback = Option<extern "C" fn(*const u8, usize)>;
pub type RetCallback<T> = Option<extern "C" fn(T)>;
pub trait ReturnType {
type Foreign;
fn foreign_default() -> Self::Foreign;
}
pub trait InputType {
type Foreign;
}
pub trait ToForeign<Local, Foreign>: Sized {
type Error;
fn to_foreign(_: Local) -> Result<Foreign, Self::Error>;
}
pub trait FromForeign<Foreign, Local>: Sized {
type Error;
unsafe fn from_foreign(_: Foreign) -> Result<Local, Self::Error>;
}
#[inline(always)]
pub fn null_ptr_error() -> Box<io::Error> {
Box::new(io::Error::new(io::ErrorKind::InvalidData, "null pointer"))
}
#[repr(C)]
pub struct Slice<T: ?Sized> {
pub data: *mut T,
pub len: usize,
}
impl<T> Slice<T> {
unsafe fn cast<U>(self) -> Slice<U> {
std::mem::transmute::<Slice<T>, Slice<U>>(self)
}
}
impl<T> std::default::Default for Slice<T> {
fn default() -> Self {
Slice {
data: std::ptr::null_mut(),
len: 0,
}
}
}
impl<T> std::fmt::Debug for Slice<T> {
fn fmt(&self, formatter: &mut std::fmt::Formatter) -> std::fmt::Result {
formatter
.debug_struct(&format!("Slice<{}>", std::any::type_name::<T>()))
.field("data", &self.data.cast::<std::ffi::c_void>())
.field("len", &self.len)
.finish()
}
}
impl<T> AsRef<[T]> for Slice<T> {
fn as_ref(&self) -> &[T] {
unsafe { std::slice::from_raw_parts(self.data as _, self.len) }
}
}
#[cfg(test)]
mod tests {
#[test]
fn test() {}
}