Trait ComponentInstanceState 

pub trait ComponentInstanceState: Send {
    // Required methods
    fn call_func_ret_list_u8(
        &mut self,
        instance: &str,
        func: &str,
        contents: impl FnOnce(&[u8]) + Send,
    ) -> impl Future<Output = ()> + Send;
    fn call_func_ret_s32(
        &mut self,
        instance: &str,
        func: &str,
    ) -> impl Future<Output = i32> + Send;
    fn call_func_ret_s64(
        &mut self,
        instance: &str,
        func: &str,
    ) -> impl Future<Output = i64> + Send;
    fn call_func_ret_f32(
        &mut self,
        instance: &str,
        func: &str,
    ) -> impl Future<Output = u32> + Send;
    fn call_func_ret_f64(
        &mut self,
        instance: &str,
        func: &str,
    ) -> impl Future<Output = u64> + Send;
}

Available on crate feature component-model only.

Trait representing the ability to invoke functions on a component to learn about its internal state.

Required Methods

fn call_func_ret_list_u8( &mut self, instance: &str, func: &str, contents: impl FnOnce(&[u8]) + Send, ) -> impl Future<Output = ()> + Send

Looks up the exported instance which has func as an export, calls it, and returns the list<u8> return type.

fn call_func_ret_s32( &mut self, instance: &str, func: &str, ) -> impl Future<Output = i32> + Send

Same as Self::call_func_ret_list_u8, but for the s32 WIT type.

fn call_func_ret_s64( &mut self, instance: &str, func: &str, ) -> impl Future<Output = i64> + Send

Same as Self::call_func_ret_list_u8, but for the s64 WIT type.

fn call_func_ret_f32( &mut self, instance: &str, func: &str, ) -> impl Future<Output = u32> + Send

Same as Self::call_func_ret_list_u8, but for the f32 WIT type.

fn call_func_ret_f64( &mut self, instance: &str, func: &str, ) -> impl Future<Output = u64> + Send

Same as Self::call_func_ret_list_u8, but for the f64 WIT type.

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.

Implementors

impl<T: Send> ComponentInstanceState for WasmtimeWizerComponent<'_, T>

Available on crate feature wasmtime only.