forked from extern/nushell
72 lines
1.4 KiB
Rust
72 lines
1.4 KiB
Rust
use std::ops::{Index, IndexMut};
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use crate::{Signature, Span, VarId};
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use super::Pipeline;
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#[derive(Debug, Clone)]
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pub struct Block {
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pub signature: Box<Signature>,
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pub pipelines: Vec<Pipeline>,
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pub captures: Vec<VarId>,
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pub redirect_env: bool,
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pub span: Option<Span>, // None option encodes no span to avoid using test_span()
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}
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impl Block {
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pub fn len(&self) -> usize {
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self.pipelines.len()
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}
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pub fn is_empty(&self) -> bool {
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self.pipelines.is_empty()
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}
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}
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impl Index<usize> for Block {
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type Output = Pipeline;
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fn index(&self, index: usize) -> &Self::Output {
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&self.pipelines[index]
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}
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}
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impl IndexMut<usize> for Block {
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fn index_mut(&mut self, index: usize) -> &mut Self::Output {
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&mut self.pipelines[index]
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}
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}
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impl Default for Block {
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fn default() -> Self {
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Self::new()
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}
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}
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impl Block {
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pub fn new() -> Self {
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Self {
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signature: Box::new(Signature::new("")),
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pipelines: vec![],
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captures: vec![],
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redirect_env: false,
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span: None,
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}
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}
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}
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impl<T> From<T> for Block
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where
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T: Iterator<Item = Pipeline>,
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{
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fn from(pipelines: T) -> Self {
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Self {
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signature: Box::new(Signature::new("")),
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pipelines: pipelines.collect(),
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captures: vec![],
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redirect_env: false,
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span: None,
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}
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}
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}
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