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partially fix lazy evaluation

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This commit is contained in:
Firegem 2025-05-04 18:32:53 -04:00
parent 2557a99e87
commit 122d28afac
1 changed files with 5 additions and 5 deletions
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10
crates/nu-command/src/filters/default.rs
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@ -146,12 +146,12 @@ fn default(
default_when_empty: bool,
) -> Result<PipelineData, ShellError> {
let metadata = input.metadata();
let dv: Spanned<Value> = call.req(engine_state, stack, 0)?;
let default = eval_default(engine_state, stack, dv.item)?;
let default_value: Spanned<Value> = call.req(engine_state, stack, 0)?;
let column: Option<Spanned<String>> = call.opt(engine_state, stack, 1)?;
if let Some(column) = column {
let default = default.into_value(dv.span)?;
let default = eval_default(engine_state, stack, default_value.item)?
.into_value(default_value.span)?;
input
.map(
move |mut item| match item {
@ -181,7 +181,7 @@ fn default(
|| (default_when_empty
&& matches!(input, PipelineData::Value(ref value, _) if value.is_empty()))
{
Ok(default)
eval_default(engine_state, stack, default_value.item)
} else if default_when_empty && matches!(input, PipelineData::ListStream(..)) {
let PipelineData::ListStream(ls, metadata) = input else {
unreachable!()
@ -189,7 +189,7 @@ fn default(
let span = ls.span();
let mut stream = ls.into_inner().peekable();
if stream.peek().is_none() {
return Ok(default);
return eval_default(engine_state, stack, default_value.item);
}
// stream's internal state already preserves the original signals config, so if this