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Fix example for extern-wrapped (#10004)

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Fixes example and some signature text of `extern-wrapped`.

# User-Facing Changes

Minor help text changes
This commit is contained in:
Jakub Žádník 2023-08-14 16:41:25 +03:00 committed by GitHub
parent ad49c17eba
commit 2b97bc54c5
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1 changed files with 19 additions and 6 deletions
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25
crates/nu-cmd-lang/src/core_commands/extern_wrapped.rs
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@ -1,6 +1,8 @@
use nu_protocol::ast::Call;
use nu_protocol::engine::{Command, EngineState, Stack};
use nu_protocol::{Category, Example, PipelineData, ShellError, Signature, SyntaxShape, Type};
use nu_protocol::{
Category, Example, PipelineData, ShellError, Signature, SyntaxShape, Type, Value,
};
#[derive(Clone)]
pub struct ExternWrapped;
@ -11,15 +13,16 @@ impl Command for ExternWrapped {
}
fn usage(&self) -> &str {
"Define a signature for an external command."
"Define a signature for an external command with a custom code block."
}
fn signature(&self) -> nu_protocol::Signature {
Signature::build("extern-wrapped")
.input_output_types(vec![(Type::Nothing, Type::Nothing)])
.allow_variants_without_examples(true)
.required("def_name", SyntaxShape::String, "definition name")
.required("params", SyntaxShape::Signature, "parameters")
.required("body", SyntaxShape::Block, "wrapper function block")
.required("body", SyntaxShape::Block, "wrapper code block")
.category(Category::Core)
}
@ -44,9 +47,19 @@ impl Command for ExternWrapped {
fn examples(&self) -> Vec<Example> {
vec![Example {
description: "Write a signature for an external command",
example: r#"extern-wrapped echo [text: string] { print $text }"#,
result: None,
description: "Define a custom wrapper for an external command",
example: r#"extern-wrapped my-echo [...rest] { echo $rest }; my-echo spam"#,
result: Some(Value::test_list(vec![Value::test_string("spam")])),
}]
}
}
#[cfg(test)]
mod test {
#[test]
fn test_examples() {
use super::ExternWrapped;
use crate::test_examples;
test_examples(ExternWrapped {})
}
}