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Fix panic when redirecting nothing (#12970)

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# Description
Fixes #12969 where the parser can panic if a redirection is applied to
nothing / an empty command.

# Tests + Formatting
Added a test.
This commit is contained in:
Ian Manske
2024-05-27 02:03:06 +00:00
committed by GitHub
parent f74dd33ba9
commit 6012af2412
3 changed files with 111 additions and 84 deletions
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8
crates/nu-protocol/src/errors/parse_error.rs
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@ -93,6 +93,13 @@ pub enum ParseError {
#[label = "second redirection"] Span,
),
#[error("Unexpected redirection.")]
#[diagnostic(code(nu::parser::unexpected_redirection))]
UnexpectedRedirection {
#[label = "redirecting nothing"]
span: Span,
},
#[error("{0} is not supported on values of type {3}")]
#[diagnostic(code(nu::parser::unsupported_operation))]
UnsupportedOperationLHS(
@ -564,6 +571,7 @@ impl ParseError {
ParseError::ShellErrRedirect(s) => *s,
ParseError::ShellOutErrRedirect(s) => *s,
ParseError::MultipleRedirections(_, _, s) => *s,
ParseError::UnexpectedRedirection { span } => *span,
ParseError::UnknownOperator(_, _, s) => *s,
ParseError::InvalidLiteral(_, _, s) => *s,
ParseError::LabeledErrorWithHelp { span: s, .. } => *s,