Trait InstanceWithMemory 

pub trait InstanceWithMemory: CabiReallocAlias + CabiFreeAlias {
    // Required method
    fn memory_from_export(
        &self,
        export: <Self::Runtime as Runtime>::Export,
    ) -> Result<Option<<Self::Runtime as Runtime>::Memory>, RuntimeError>;

    // Provided methods
    fn memory(&mut self) -> Result<Memory<'_, Self>, RuntimeError> { ... }
    fn load_memory(
        &mut self,
    ) -> Result<<Self::Runtime as Runtime>::Memory, RuntimeError> { ... }
}

Trait alias for a Wasm module instance with the WIT Canonical ABI functions.

Required Methods

fn memory_from_export( &self, export: <Self::Runtime as Runtime>::Export, ) -> Result<Option<<Self::Runtime as Runtime>::Memory>, RuntimeError>

Converts an export into the runtime’s specific memory type.

Provided Methods

fn memory(&mut self) -> Result<Memory<'_, Self>, RuntimeError>

Returns the memory export from the current Wasm module instance.

fn load_memory( &mut self, ) -> Result<<Self::Runtime as Runtime>::Memory, RuntimeError>

Resolves the guest module’s memory export.

Runtimes may override this to cache the resolved handle and skip the export lookup on every host call.

Dyn Compatibility

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety", so this trait is not object safe.

Implementations on Foreign Types

impl<'a, I> InstanceWithMemory for &'a mut I

where I: InstanceWithMemory, &'a mut I: Instance<Runtime = I::Runtime> + CabiReallocAlias + CabiFreeAlias,

fn memory_from_export( &self, export: <Self::Runtime as Runtime>::Export, ) -> Result<Option<<Self::Runtime as Runtime>::Memory>, RuntimeError>

fn load_memory( &mut self, ) -> Result<<Self::Runtime as Runtime>::Memory, RuntimeError>

Implementors

impl<UserData> InstanceWithMemory for MockInstance<UserData>

impl<UserData> InstanceWithMemory for linera_witty::wasmtime::EntrypointInstance<UserData>

impl<UserData> InstanceWithMemory for StubInstance<UserData>

impl<UserData> InstanceWithMemory for linera_witty::wasmtime::ReentrantInstance<'_, UserData>

impl<UserData: 'static> InstanceWithMemory for linera_witty::wasmer::EntrypointInstance<UserData>

impl<UserData: 'static> InstanceWithMemory for linera_witty::wasmer::ReentrantInstance<'_, UserData>