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Evaluation of command arguments (#1801)

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* Finish adding the baseline refactors for argument invocation

* Finish cleanup and add test

* Add missing plugin references
This commit is contained in:
Jonathan Turner
2020-05-15 20:18:24 -07:00
committed by GitHub
parent 822440d5ff
commit 076fde16dd
139 changed files with 2496 additions and 2188 deletions
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24
crates/nu-cli/src/commands/append.rs
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@ -2,7 +2,7 @@ use crate::commands::WholeStreamCommand;
use crate::context::CommandRegistry;
use crate::prelude::*;
use nu_errors::ShellError;
use nu_protocol::{Signature, SyntaxShape, Value};
use nu_protocol::{ReturnSuccess, Signature, SyntaxShape, Value};
#[derive(Deserialize)]
struct AppendArgs {
@ -33,7 +33,7 @@ impl WholeStreamCommand for Append {
args: CommandArgs,
registry: &CommandRegistry,
) -> Result<OutputStream, ShellError> {
args.process(registry, append)?.run()
append(args, registry)
}
fn examples(&self) -> &[Example] {
@ -44,13 +44,17 @@ impl WholeStreamCommand for Append {
}
}
fn append(
AppendArgs { row }: AppendArgs,
RunnableContext { input, .. }: RunnableContext,
) -> Result<OutputStream, ShellError> {
let mut after: VecDeque<Value> = VecDeque::new();
after.push_back(row);
let after = futures::stream::iter(after);
fn append(args: CommandArgs, registry: &CommandRegistry) -> Result<OutputStream, ShellError> {
let registry = registry.clone();
Ok(OutputStream::from_input(input.chain(after)))
let stream = async_stream! {
let (AppendArgs { row }, mut input) = args.process(&registry).await?;
while let Some(item) = input.next().await {
yield ReturnSuccess::value(item);
}
yield ReturnSuccess::value(row);
};
Ok(stream.to_output_stream())
}