1 //! Utility module to create trampolines in/out WebAssembly module.
2
3 mod global;
4 mod memory;
5 mod table;
6 mod tag;
7
8 pub use self::global::*;
9 pub(crate) use memory::MemoryCreatorProxy;
10
11 use self::memory::create_memory;
12 use self::table::create_table;
13 use self::tag::create_tag;
14 use crate::prelude::*;
15 use crate::runtime::vm::{ExportMemory, SharedMemory};
16 use crate::store::{StoreOpaque, StoreResourceLimiter};
17 use crate::{MemoryType, TableType, TagType};
18 use wasmtime_environ::{MemoryIndex, TableIndex, TagIndex};
19
generate_memory_export( store: &mut StoreOpaque, limiter: Option<&mut StoreResourceLimiter<'_>>, m: &MemoryType, preallocation: Option<&SharedMemory>, ) -> Result<ExportMemory>20 pub async fn generate_memory_export(
21 store: &mut StoreOpaque,
22 limiter: Option<&mut StoreResourceLimiter<'_>>,
23 m: &MemoryType,
24 preallocation: Option<&SharedMemory>,
25 ) -> Result<ExportMemory> {
26 let id = store.id();
27 let instance = create_memory(store, limiter, m, preallocation).await?;
28 Ok(store
29 .instance_mut(instance)
30 .get_exported_memory(id, MemoryIndex::from_u32(0)))
31 }
32
generate_table_export( store: &mut StoreOpaque, limiter: Option<&mut StoreResourceLimiter<'_>>, t: &TableType, ) -> Result<crate::Table>33 pub async fn generate_table_export(
34 store: &mut StoreOpaque,
35 limiter: Option<&mut StoreResourceLimiter<'_>>,
36 t: &TableType,
37 ) -> Result<crate::Table> {
38 let id = store.id();
39 let instance = create_table(store, limiter, t).await?;
40 Ok(store
41 .instance_mut(instance)
42 .get_exported_table(id, TableIndex::from_u32(0)))
43 }
44
generate_tag_export(store: &mut StoreOpaque, t: &TagType) -> Result<crate::Tag>45 pub fn generate_tag_export(store: &mut StoreOpaque, t: &TagType) -> Result<crate::Tag> {
46 let id = store.id();
47 let instance = create_tag(store, t)?;
48 Ok(store
49 .instance_mut(instance)
50 .get_exported_tag(id, TagIndex::from_u32(0)))
51 }
52