nushell/crates/nu-command/src/core_commands/module.rs

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2021-09-29 20:25:05 +02:00
use nu_protocol::ast::Call;
use nu_protocol::engine::{Command, EvaluationContext};
use nu_protocol::{Signature, SyntaxShape, Value};
pub struct Module;
impl Command for Module {
fn name(&self) -> &str {
"module"
}
fn usage(&self) -> &str {
"Define a custom module"
}
fn signature(&self) -> nu_protocol::Signature {
Signature::build("module")
.required("module_name", SyntaxShape::String, "module name")
.required(
"block",
SyntaxShape::Block(Some(vec![])),
"body of the module",
)
}
fn run(
&self,
_context: &EvaluationContext,
call: &Call,
_input: Value,
) -> Result<nu_protocol::Value, nu_protocol::ShellError> {
Ok(Value::Nothing { span: call.head })
}
}