nushell/src/commands/reject.rs
2019-08-05 20:54:29 +12:00

24 lines
668 B
Rust

use crate::errors::ShellError;
use crate::object::base::reject_fields;
use crate::prelude::*;
pub fn reject(args: CommandArgs) -> Result<OutputStream, ShellError> {
if args.len() == 0 {
return Err(ShellError::labeled_error(
"Reject requires fields",
"needs parameter",
args.call_info.name_span,
));
}
let fields: Result<Vec<String>, _> = args.positional_iter().map(|a| a.as_string()).collect();
let fields = fields?;
let stream = args
.input
.values
.map(move |item| reject_fields(&item, &fields, item.tag()).into_tagged_value());
Ok(stream.from_input_stream())
}