stof 0.9.19

Data that carries its own logic.
Documentation 
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//
// Copyright 2025 Formata, Inc. All rights reserved.
//
// 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.
//

use std::sync::Arc;
use imbl::Vector;
use serde::{Deserialize, Serialize};
use crate::{model::Graph, runtime::{instruction::{Instruction, Instructions}, proc::ProcEnv, Error}};


#[derive(Debug, Clone, Serialize, Deserialize, Default)]
/// Simple block of instructions to be executed.
pub struct Block {
    pub ins: Vector<Arc<dyn Instruction>>,
}
#[typetag::serde(name = "Block")]
impl Instruction for Block {
    fn exec(&self, _env: &mut ProcEnv, _graph: &mut Graph) -> Result<Option<Instructions>, Error> {
        let mut instructions = Instructions::default();
        instructions.append(&self.ins);
        Ok(Some(instructions))
    }
}