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
pub(crate) mod function;
mod global;
mod memory;
mod table;
pub use self::function::{
FromToNativeWasmType, Function, HostFunction, WasmTypeList, WithEnv, WithoutEnv,
};
#[cfg(feature = "deprecated")]
pub use self::function::{UnsafeMutableEnv, WithUnsafeMutableEnv};
pub use self::global::Global;
pub use self::memory::Memory;
pub use self::table::Table;
use crate::exports::{ExportError, Exportable};
use crate::store::{Store, StoreObject};
use crate::ExternType;
use std::fmt;
use wasmer_engine::Export;
#[derive(Clone)]
pub enum Extern {
Function(Function),
Global(Global),
Table(Table),
Memory(Memory),
}
impl Extern {
pub fn ty(&self) -> ExternType {
match self {
Self::Function(ft) => ExternType::Function(ft.ty().clone()),
Self::Memory(ft) => ExternType::Memory(*ft.ty()),
Self::Table(tt) => ExternType::Table(*tt.ty()),
Self::Global(gt) => ExternType::Global(*gt.ty()),
}
}
pub fn from_vm_export(store: &Store, export: Export) -> Self {
match export {
Export::Function(f) => Self::Function(Function::from_vm_export(store, f)),
Export::Memory(m) => Self::Memory(Memory::from_vm_export(store, m)),
Export::Global(g) => Self::Global(Global::from_vm_export(store, g)),
Export::Table(t) => Self::Table(Table::from_vm_export(store, t)),
}
}
}
impl<'a> Exportable<'a> for Extern {
fn to_export(&self) -> Export {
match self {
Self::Function(f) => f.to_export(),
Self::Global(g) => g.to_export(),
Self::Memory(m) => m.to_export(),
Self::Table(t) => t.to_export(),
}
}
fn get_self_from_extern(_extern: &'a Self) -> Result<&'a Self, ExportError> {
Ok(_extern)
}
}
impl StoreObject for Extern {
fn comes_from_same_store(&self, store: &Store) -> bool {
let my_store = match self {
Self::Function(f) => f.store(),
Self::Global(g) => g.store(),
Self::Memory(m) => m.store(),
Self::Table(t) => t.store(),
};
Store::same(my_store, store)
}
}
impl fmt::Debug for Extern {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
write!(
f,
"{}",
match self {
Self::Function(_) => "Function(...)",
Self::Global(_) => "Global(...)",
Self::Memory(_) => "Memory(...)",
Self::Table(_) => "Table(...)",
}
)
}
}
impl From<Function> for Extern {
fn from(r: Function) -> Self {
Self::Function(r)
}
}
impl From<Global> for Extern {
fn from(r: Global) -> Self {
Self::Global(r)
}
}
impl From<Memory> for Extern {
fn from(r: Memory) -> Self {
Self::Memory(r)
}
}
impl From<Table> for Extern {
fn from(r: Table) -> Self {
Self::Table(r)
}
}