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allow view-source to view aliases (#6135)

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pwygab 2022-07-26 21:06:16 +08:00 committed by GitHub
parent d856ac92f4
commit b12a3dd0e5
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18
crates/nu-command/src/experimental/view_source.rs
View file

@ -1,3 +1,4 @@
use itertools::Itertools;
use nu_engine::CallExt; use nu_engine::CallExt;
use nu_protocol::ast::Call; use nu_protocol::ast::Call;
use nu_protocol::engine::{Command, EngineState, Stack}; use nu_protocol::engine::{Command, EngineState, Stack};
@ -131,6 +132,15 @@ impl Command for ViewSource {
Vec::new(), Vec::new(),
)) ))
} }
} else if let Some(alias_id) = engine_state.find_alias(val.as_bytes(), &[]) {
let contents = &mut engine_state.get_alias(alias_id).iter().map(|span| {
String::from_utf8_lossy(engine_state.get_span_contents(span)).to_string()
});
Ok(Value::String {
val: contents.join(" "),
span: call.head,
}
.into_pipeline_data())
} else { } else {
Err(ShellError::GenericError( Err(ShellError::GenericError(
"Cannot view value".to_string(), "Cannot view value".to_string(),
@ -185,6 +195,14 @@ impl Command for ViewSource {
span: Span::test_data(), span: Span::test_data(),
}), }),
}, },
Example {
description: "View the source of an alias",
example: r#"alias hello = echo hi; view-source hello"#,
result: Some(Value::String {
val: "echo hi".to_string(),
span: Span::test_data(),
}),
},
] ]
} }
} }