Trait marine_wasm_backend_traits::instance::Instance
source · pub trait Instance<WB: WasmBackend>: Clone {
// Required methods
fn export_iter<'a>(
&'a self,
store: <WB as WasmBackend>::ContextMut<'a>
) -> Box<dyn Iterator<Item = (&'a str, Export<WB>)> + 'a>;
fn get_nth_memory(
&self,
store: &mut impl AsContextMut<WB>,
memory_index: u32
) -> Option<<WB as WasmBackend>::Memory>;
fn get_memory(
&self,
store: &mut impl AsContextMut<WB>,
memory_name: &str
) -> ResolveResult<<WB as WasmBackend>::Memory>;
fn get_function(
&self,
store: &mut impl AsContextMut<WB>,
name: &str
) -> ResolveResult<<WB as WasmBackend>::ExportFunction>;
}
Expand description
A handle to an instantiated Wasm module. Cloning is cheap.
Required Methods§
sourcefn export_iter<'a>(
&'a self,
store: <WB as WasmBackend>::ContextMut<'a>
) -> Box<dyn Iterator<Item = (&'a str, Export<WB>)> + 'a>
fn export_iter<'a>( &'a self, store: <WB as WasmBackend>::ContextMut<'a> ) -> Box<dyn Iterator<Item = (&'a str, Export<WB>)> + 'a>
Returns an Iterator
to all exports of this instance.
sourcefn get_nth_memory(
&self,
store: &mut impl AsContextMut<WB>,
memory_index: u32
) -> Option<<WB as WasmBackend>::Memory>
fn get_nth_memory( &self, store: &mut impl AsContextMut<WB>, memory_index: u32 ) -> Option<<WB as WasmBackend>::Memory>
Returns nth exported memory, None if there is no nth memory.
No guaranties is known for memory order, but almost always a module has only one memory,
hence the only valid value for memory_index
is 0.
sourcefn get_memory(
&self,
store: &mut impl AsContextMut<WB>,
memory_name: &str
) -> ResolveResult<<WB as WasmBackend>::Memory>
fn get_memory( &self, store: &mut impl AsContextMut<WB>, memory_name: &str ) -> ResolveResult<<WB as WasmBackend>::Memory>
Returns a memory export with given name.
§Errors:
Returns an error if there is no export with such name, or it is not a memory.
sourcefn get_function(
&self,
store: &mut impl AsContextMut<WB>,
name: &str
) -> ResolveResult<<WB as WasmBackend>::ExportFunction>
fn get_function( &self, store: &mut impl AsContextMut<WB>, name: &str ) -> ResolveResult<<WB as WasmBackend>::ExportFunction>
Returns an exported function with the given name.
§Errors:
Returns an error if there is no export with such name, or it is not a function.
Object Safety§
This trait is not object safe.