Method exec_call_host

crates/tinywasm/src/interpreter/executor.rs:973–987

(&mut self, host_func: Rc<HostFunction>)

    }

    fn exec_call_host(&mut self, host_func: Rc<HostFunction>) -> Result<(), Trap> {
        let mut params = self.store.value_stack.pop_types(host_func.ty.params().iter().rev()).collect::<Vec<_>>();
        params.reverse();
        let res = match host_func.call(FuncContext { store: self.store, module_addr: self.module.idx() }, &params) {
            Ok(res) => res,
            Err(err) => {
                cold_path();
                return Err(Trap::HostFunction(Box::new(err)));
            }
        };

        self.store.value_stack.extend_from_wasmvalues(&res)?;
        self.cf.incr_instr_ptr();
        Ok(())
    }

    fn exec_call_direct(&mut self, v: u32) -> Result<(), Trap> {
        self.charge_call_fuel(FUEL_COST_CALL_TOTAL);