nushell/src/commands/reject.rs
Jonathan Turner 9ae9beb94a WIP
2019-06-22 15:43:37 +12:00

25 lines
691 B
Rust

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