Trait sc_executor_common::wasm_runtime::WasmInstance

pub trait WasmInstance: Send {
    // Required methods
    fn call_with_allocation_stats(
        &mut self,
        method: InvokeMethod<'_>,
        data: &[u8]
    ) -> (Result<Vec<u8>, Error>, Option<AllocationStats>);
    fn get_global_const(&mut self, name: &str) -> Result<Option<Value>, Error>;

    // Provided methods
    fn call(
        &mut self,
        method: InvokeMethod<'_>,
        data: &[u8]
    ) -> Result<Vec<u8>, Error> { ... }
    fn call_export(
        &mut self,
        method: &str,
        data: &[u8]
    ) -> Result<Vec<u8>, Error> { ... }
}

A trait that defines an abstract wasm module instance.

This can be implemented by an execution engine.

Required Methods

fn call_with_allocation_stats( &mut self, method: InvokeMethod<'_>, data: &[u8] ) -> (Result<Vec<u8>, Error>, Option<AllocationStats>)

Call a method on this WASM instance.

Before execution, instance is reset.

Returns the encoded result on success.

fn get_global_const(&mut self, name: &str) -> Result<Option<Value>, Error>

Get the value from a global with the given name.

This method is only suitable for getting immutable globals.

Provided Methods

fn call( &mut self, method: InvokeMethod<'_>, data: &[u8] ) -> Result<Vec<u8>, Error>

Call a method on this WASM instance.

Before execution, instance is reset.

Returns the encoded result on success.

fn call_export(&mut self, method: &str, data: &[u8]) -> Result<Vec<u8>, Error>

Call an exported method on this WASM instance.

Before execution, instance is reset.

Returns the encoded result on success.

Implementors