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/*
* AquaVM Workflow Engine
*
* Copyright (C) 2024 Fluence DAO
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as
* published by the Free Software Foundation version 3 of the
* License.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*/
use super::Iterable;
use super::IterableItem;
use super::ValueAggregate;
use crate::foldable_next;
use crate::foldable_prev;
/// Used for iterating over stream with JValues.
#[derive(Clone, Debug, Eq, PartialEq)]
pub(crate) struct IterableVecResolvedCall {
pub(crate) call_results: Vec<ValueAggregate>,
pub(crate) cursor: usize,
}
impl IterableVecResolvedCall {
pub(crate) fn init(call_results: Vec<ValueAggregate>) -> Self {
Self {
call_results,
cursor: 0,
}
}
}
impl<'ctx> Iterable<'ctx> for IterableVecResolvedCall {
type Item = IterableItem<'ctx>;
fn next(&mut self) -> bool {
foldable_next!(self, self.call_results.len())
}
fn prev(&mut self) -> bool {
foldable_prev!(self)
}
fn peek(&'ctx self) -> Option<Self::Item> {
if self.call_results.is_empty() {
return None;
}
let (result, tetraplet, trace_pos) = self.call_results[self.cursor].as_inner_parts();
let result = IterableItem::RcValue((
result.clone(),
tetraplet,
trace_pos,
self.call_results[self.cursor].get_provenance(),
));
Some(result)
}
fn len(&self) -> usize {
self.call_results.len()
}
}