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Allow parens around signatures (#6444)

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* DRAFT: make var dollar optional

* couple fixes

* fix some tests + cleanup

* allow parens around signature

* clippy
This commit is contained in:
JT 2022-08-30 16:17:10 +12:00 committed by GitHub
parent 9c58f2a522
commit a03fb946d9
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GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 15 additions and 3 deletions
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18
crates/nu-parser/src/parser.rs
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@ -3085,12 +3085,17 @@ pub fn parse_signature(
let mut start = span.start;
let mut end = span.end;
let mut has_paren = false;
if bytes.starts_with(b"[") {
start += 1;
} else if bytes.starts_with(b"(") {
has_paren = true;
start += 1;
} else {
error = error.or_else(|| {
Some(ParseError::Expected(
"[".into(),
"[ or (".into(),
Span {
start,
end: start + 1,
@ -3099,10 +3104,15 @@ pub fn parse_signature(
});
}
if bytes.ends_with(b"]") {
if (has_paren && bytes.ends_with(b")")) || (!has_paren && bytes.ends_with(b"]")) {
end -= 1;
} else {
error = error.or_else(|| Some(ParseError::Unclosed("]".into(), Span { start: end, end })));
error = error.or_else(|| {
Some(ParseError::Unclosed(
"] or )".into(),
Span { start: end, end },
))
});
}
let (sig, err) =
@ -4092,6 +4102,8 @@ pub fn parse_value(
b'(' => {
if let (expr, None) = parse_range(working_set, span, expand_aliases_denylist) {
return (expr, None);
} else if matches!(shape, SyntaxShape::Signature) {
return parse_signature(working_set, span, expand_aliases_denylist);
} else {
return parse_full_cell_path(working_set, None, span, expand_aliases_denylist);
}