1 use wasmtime::{HeapType, ValType};
2
3 #[repr(C)]
4 #[derive(Clone)]
5 pub struct wasm_valtype_t {
6 pub(crate) ty: ValType,
7 }
8
9 wasmtime_c_api_macros::declare_ty!(wasm_valtype_t);
10
11 pub type wasm_valkind_t = u8;
12 pub const WASM_I32: wasm_valkind_t = 0;
13 pub const WASM_I64: wasm_valkind_t = 1;
14 pub const WASM_F32: wasm_valkind_t = 2;
15 pub const WASM_F64: wasm_valkind_t = 3;
16 pub const WASM_EXTERNREF: wasm_valkind_t = 128;
17 pub const WASM_FUNCREF: wasm_valkind_t = 129;
18
19 #[unsafe(no_mangle)]
wasm_valtype_new(kind: wasm_valkind_t) -> Box<wasm_valtype_t>20 pub extern "C" fn wasm_valtype_new(kind: wasm_valkind_t) -> Box<wasm_valtype_t> {
21 Box::new(wasm_valtype_t {
22 ty: into_valtype(kind),
23 })
24 }
25
26 #[unsafe(no_mangle)]
wasm_valtype_kind(vt: &wasm_valtype_t) -> wasm_valkind_t27 pub extern "C" fn wasm_valtype_kind(vt: &wasm_valtype_t) -> wasm_valkind_t {
28 from_valtype(&vt.ty)
29 }
30
into_valtype(kind: wasm_valkind_t) -> ValType31 pub(crate) fn into_valtype(kind: wasm_valkind_t) -> ValType {
32 match kind {
33 WASM_I32 => ValType::I32,
34 WASM_I64 => ValType::I64,
35 WASM_F32 => ValType::F32,
36 WASM_F64 => ValType::F64,
37 WASM_EXTERNREF => ValType::EXTERNREF,
38 WASM_FUNCREF => ValType::FUNCREF,
39 WASMTIME_V128 => ValType::V128,
40 _ => panic!("unexpected kind: {kind}"),
41 }
42 }
43
from_valtype(ty: &ValType) -> wasm_valkind_t44 pub(crate) fn from_valtype(ty: &ValType) -> wasm_valkind_t {
45 match ty {
46 ValType::I32 => WASM_I32,
47 ValType::I64 => WASM_I64,
48 ValType::F32 => WASM_F32,
49 ValType::F64 => WASM_F64,
50 ValType::V128 => WASMTIME_V128,
51 ValType::Ref(r) => match (r.is_nullable(), r.heap_type()) {
52 (true, HeapType::Extern) => WASM_EXTERNREF,
53 (true, HeapType::Func) => WASM_FUNCREF,
54 _ => crate::abort("support for non-externref and non-funcref references"),
55 },
56 }
57 }
58
59 pub type wasmtime_valkind_t = u8;
60 pub const WASMTIME_I32: wasmtime_valkind_t = 0;
61 pub const WASMTIME_I64: wasmtime_valkind_t = 1;
62 pub const WASMTIME_F32: wasmtime_valkind_t = 2;
63 pub const WASMTIME_F64: wasmtime_valkind_t = 3;
64 pub const WASMTIME_V128: wasmtime_valkind_t = 4;
65 pub const WASMTIME_FUNCREF: wasmtime_valkind_t = 5;
66 pub const WASMTIME_EXTERNREF: wasmtime_valkind_t = 6;
67 pub const WASMTIME_ANYREF: wasmtime_valkind_t = 7;
68 pub const WASMTIME_EXNREF: wasmtime_valkind_t = 8;
69