aquavm/stepper-lib/src/execution.rs

62 lines
1.8 KiB
Rust

/*
* Copyright 2020 Fluence Labs Limited
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
mod outcome;
mod preparation;
pub use preparation::parse;
use preparation::prepare;
use preparation::PrepareResult;
use crate::air::ExecutableInstruction;
use crate::StepperOutcome;
use std::convert::identity;
pub fn execute_aqua(init_peer_id: String, aqua: String, prev_data: Vec<u8>, data: Vec<u8>) -> StepperOutcome {
log::trace!(
"aquamarine version is {}, init user id is {}",
env!("CARGO_PKG_VERSION"),
init_peer_id
);
execute_aqua_impl(init_peer_id, aqua, prev_data, data).unwrap_or_else(identity)
}
fn execute_aqua_impl(
init_peer_id: String,
aqua: String,
prev_path: Vec<u8>,
path: Vec<u8>,
) -> Result<StepperOutcome, StepperOutcome> {
let PrepareResult {
mut exec_ctx,
mut call_ctx,
aqua,
} = prepare(&prev_path, &path, aqua.as_str(), init_peer_id)
// return the initial data in case of errors
.map_err(|e| outcome::error_from_raw_data(path, e))?;
aqua.execute(&mut exec_ctx, &mut call_ctx)
// return new collected path in case of errors
.map_err(|e| outcome::error_from_data(&call_ctx.new_path, exec_ctx.next_peer_pks.clone(), e))?;
let outcome = outcome::success(&call_ctx.new_path, exec_ctx.next_peer_pks);
Ok(outcome)
}