wasmer_wasix/runtime/module_cache/
hashed_module.rs

1use shared_buffer::OwnedBuffer;
2use wasmer_types::ModuleHash;
3
4use crate::bin_factory::BinaryPackageCommand;
5
6/// A wrapper around Webassembly code and its hash.
7///
8/// Allows passing around WASM code and it's hash without the danger of
9/// using a wrong hash.
10///
11/// Safe by construction: can only be created from a [`BinaryPackageCommand`](crate::bin_factory::BinaryPackageCommand), which
12/// already has the hash embedded, or from bytes that will be hashed in the
13/// constructor.
14///
15/// Can be cloned cheaply.
16#[derive(Clone, Debug, PartialEq, Eq)]
17pub struct HashedModuleData {
18    hash: ModuleHash,
19    wasm: OwnedBuffer,
20}
21
22impl HashedModuleData {
23    pub fn new(bytes: impl Into<OwnedBuffer>) -> Self {
24        let wasm = bytes.into();
25        let hash = ModuleHash::new(&wasm);
26        Self { hash, wasm }
27    }
28
29    /// Create new [`HashedModuleData`] from the given [`BinaryPackageCommand`](crate::bin_factory::BinaryPackageCommand).
30    ///
31    /// This is very cheap, as the hash is already available in the command.
32    pub fn from_command(command: &BinaryPackageCommand) -> Self {
33        Self {
34            hash: *command.hash(),
35            wasm: command.atom(),
36        }
37    }
38
39    /// Get the module hash.
40    pub fn hash(&self) -> &ModuleHash {
41        &self.hash
42    }
43
44    /// Get the WASM code.
45    pub fn wasm(&self) -> &OwnedBuffer {
46        &self.wasm
47    }
48
49    pub fn into_parts(self) -> (ModuleHash, OwnedBuffer) {
50        (self.hash, self.wasm)
51    }
52}
wasmer_wasix/runtime/module_cache/hashed_module.rs

wasmer_wasix/runtime/module_cache/
hashed_module.rs
