nu_command/misc/
panic.rs

1use nu_engine::command_prelude::*;
2
3#[derive(Clone)]
4pub struct Panic;
5
6impl Command for Panic {
7    fn name(&self) -> &str {
8        "panic"
9    }
10
11    fn description(&self) -> &str {
12        "Causes nushell to panic."
13    }
14
15    fn search_terms(&self) -> Vec<&str> {
16        vec!["crash", "throw"]
17    }
18
19    fn signature(&self) -> nu_protocol::Signature {
20        Signature::build("panic")
21            .input_output_types(vec![(Type::Nothing, Type::Nothing)])
22            .optional(
23                "msg",
24                SyntaxShape::String,
25                "The custom message for the panic.",
26            )
27            .category(Category::Debug)
28    }
29
30    fn run(
31        &self,
32        engine_state: &EngineState,
33        stack: &mut Stack,
34        call: &Call,
35        _input: PipelineData,
36    ) -> Result<PipelineData, ShellError> {
37        let maybe_msg: String = call
38            .opt(engine_state, stack, 0)?
39            .unwrap_or("Panic!".to_string());
40        panic!("{}", maybe_msg)
41    }
42
43    fn examples(&self) -> Vec<Example> {
44        vec![Example {
45            description: "Panic with a custom message",
46            example: "panic 'This is a custom panic message'",
47            result: None,
48        }]
49    }
50}
nu_command/misc/panic.rs

nu_command/misc/
panic.rs
