forked from extern/nushell
35 lines
928 B
Rust
35 lines
928 B
Rust
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use nu_protocol::ast::Call;
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use nu_protocol::engine::{Command, EvaluationContext};
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use nu_protocol::{Signature, SyntaxShape, Value};
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pub struct Alias;
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impl Command for Alias {
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fn name(&self) -> &str {
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"alias"
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}
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fn usage(&self) -> &str {
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"Alias a command (with optional flags) to a new name"
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}
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fn signature(&self) -> nu_protocol::Signature {
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Signature::build("alias")
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.required("name", SyntaxShape::String, "name of the alias")
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.required(
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"initial_value",
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SyntaxShape::Keyword(b"=".to_vec(), Box::new(SyntaxShape::Expression)),
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"equals sign followed by value",
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)
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}
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fn run(
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&self,
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_context: &EvaluationContext,
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call: &Call,
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_input: Value,
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) -> Result<nu_protocol::Value, nu_protocol::ShellError> {
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Ok(Value::Nothing { span: call.head })
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}
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}
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