forked from extern/nushell
49 lines
1.3 KiB
Markdown
49 lines
1.3 KiB
Markdown
This pattern is extremely repetitive and can be abstracted:
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```rs
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let args = args.evaluate_once(registry)?;
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let tag = args.name_tag();
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let input = args.input;
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let stream = async_stream! {
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let values: Vec<Value> = input.values.collect().await;
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let mut concat_string = String::new();
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let mut latest_tag: Option<Tag> = None;
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for value in values {
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latest_tag = Some(value_tag.clone());
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let value_span = value.tag.span;
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match &value.value {
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UntaggedValue::Primitive(Primitive::String(s)) => {
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concat_string.push_str(&s);
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concat_string.push_str("\n");
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}
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_ => yield Err(ShellError::labeled_error_with_secondary(
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"Expected a string from pipeline",
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"requires string input",
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name_span,
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"value originates from here",
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value_span,
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)),
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}
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}
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```
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Mandatory and Optional in parse_command
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trace_remaining?
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select_fields and select_fields take unnecessary Tag
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Value#value should be Value#untagged
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Unify dictionary building, probably around a macro
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sys plugin in own crate
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textview in own crate
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