forked from extern/nushell
101 lines
2.5 KiB
Rust
101 lines
2.5 KiB
Rust
use nu_engine::CallExt;
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use nu_protocol::ast::Call;
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use nu_protocol::engine::{Command, EngineState, Stack};
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use nu_protocol::{
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Category, Example, PipelineData, ShellError, Signature, Span, SyntaxShape, Value,
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};
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#[derive(Clone)]
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pub struct SubCommand;
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impl Command for SubCommand {
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fn name(&self) -> &str {
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"bits or"
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}
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fn signature(&self) -> Signature {
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Signature::build("bits or")
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.required(
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"target",
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SyntaxShape::Int,
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"target integer to perform bit or",
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)
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.category(Category::Bits)
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}
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fn usage(&self) -> &str {
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"Performs bitwise or for integers"
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}
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fn search_terms(&self) -> Vec<&str> {
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vec!["logic or"]
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}
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fn run(
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&self,
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engine_state: &EngineState,
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stack: &mut Stack,
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call: &Call,
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input: PipelineData,
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) -> Result<nu_protocol::PipelineData, nu_protocol::ShellError> {
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let head = call.head;
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let target: i64 = call.req(engine_state, stack, 0)?;
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input.map(
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move |value| operate(value, target, head),
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engine_state.ctrlc.clone(),
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)
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}
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fn examples(&self) -> Vec<Example> {
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vec![
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Example {
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description: "Apply bits or to two numbers",
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example: "2 | bits or 6",
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result: Some(Value::Int {
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val: 6,
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span: Span::test_data(),
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}),
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},
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Example {
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description: "Apply logical or to a list of numbers",
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example: "[8 3 2] | bits or 2",
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result: Some(Value::List {
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vals: vec![Value::test_int(10), Value::test_int(3), Value::test_int(2)],
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span: Span::test_data(),
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}),
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},
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]
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}
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}
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fn operate(value: Value, target: i64, head: Span) -> Value {
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match value {
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Value::Int { val, span } => Value::Int {
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val: val | target,
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span,
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},
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other => Value::Error {
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error: ShellError::UnsupportedInput(
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format!(
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"Only integer values are supported, input type: {:?}",
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other.get_type()
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),
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other.span().unwrap_or(head),
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),
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},
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}
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}
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#[cfg(test)]
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mod test {
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use super::*;
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#[test]
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fn test_examples() {
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use crate::test_examples;
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test_examples(SubCommand {})
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}
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}
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