jonaskruckenberg.de
Next Generation WASM Microkernel Operating System
1// Copyright 2025 Jonas Kruckenberg
2//
3// Licensed under the Apache License, Version 2.0, <LICENSE-APACHE or
4// http://apache.org/licenses/LICENSE-2.0> or the MIT license <LICENSE-MIT or
5// http://opensource.org/licenses/MIT>, at your option. This file may not be
6// copied, modified, or distributed except according to those terms.
7
8use crate::wasm::store::{StoreOpaque, Stored};
9use crate::wasm::types::MemoryType;
10use crate::wasm::vm::{ExportedMemory, VMMemoryImport, VmPtr};
11
12#[derive(Clone, Copy, Debug)]
13pub struct Memory(Stored<ExportedMemory>);
14
15impl Memory {
16 pub fn ty(self, store: &StoreOpaque) -> MemoryType {
17 let export = &store[self.0];
18 MemoryType::from_wasm_memory(&export.memory)
19 }
20
21 pub(super) fn from_exported_memory(store: &mut StoreOpaque, export: ExportedMemory) -> Self {
22 let stored = store.add_memory(export);
23 Self(stored)
24 }
25 pub(super) fn as_vmmemory_import(self, store: &mut StoreOpaque) -> VMMemoryImport {
26 let export = &store[self.0];
27 VMMemoryImport {
28 from: VmPtr::from(export.definition),
29 vmctx: VmPtr::from(export.vmctx),
30 index: export.index,
31 }
32 }
33}