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Make if else more lazy (#5386)

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This commit is contained in:
JT
2022-05-01 09:13:21 +12:00
committed by GitHub
parent 3df03e2e6d
commit f16401152b
2 changed files with 26 additions and 7 deletions
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25
crates/nu-command/src/core_commands/if_.rs
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@ -1,9 +1,8 @@
use nu_engine::{eval_block, eval_expression, CallExt};
use nu_engine::{eval_block, eval_expression, eval_expression_with_input, CallExt};
use nu_protocol::ast::Call;
use nu_protocol::engine::{CaptureBlock, Command, EngineState, Stack};
use nu_protocol::{
Category, Example, FromValue, IntoPipelineData, PipelineData, ShellError, Signature,
SyntaxShape, Value,
Category, Example, FromValue, PipelineData, ShellError, Signature, SyntaxShape, Value,
};
#[derive(Clone)]
@ -85,12 +84,24 @@ https://www.nushell.sh/book/thinking_in_nushell.html#parsing-and-evaluation-are-
call.redirect_stderr,
)
} else {
eval_expression(engine_state, stack, else_expr)
.map(|x| x.into_pipeline_data())
eval_expression_with_input(
engine_state,
stack,
else_expr,
input,
call.redirect_stdout,
call.redirect_stderr,
)
}
} else {
eval_expression(engine_state, stack, else_case)
.map(|x| x.into_pipeline_data())
eval_expression_with_input(
engine_state,
stack,
else_case,
input,
call.redirect_stdout,
call.redirect_stderr,
)
}
} else {
Ok(PipelineData::new(call.head))