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Merge pull request #28 from jntrnr/smoother_list_parse_fail

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Fail more gently for bad list/table parses
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JT 2021-09-07 15:59:09 +12:00 committed by GitHub
commit 2055b83c34
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2 changed files with 35 additions and 22 deletions
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7
crates/nu-parser/src/lex.rs
View File

@ -161,15 +161,14 @@ pub fn lex_item(
let span = Span::new(span_offset + token_start, span_offset + *curr_offset);
// If there is still unclosed opening delimiters, close them and add
// synthetic closing characters to the accumulated token.
// If there is still unclosed opening delimiters, remember they were missing
if let Some(block) = block_level.last() {
let delim = block.closing();
let cause = ParseError::UnexpectedEof(
(delim as char).to_string(),
Span {
start: span.end - 1,
end: span.end,
start: span.end,
end: span.end + 1,
},
);

50
crates/nu-parser/src/parser.rs
View File

@ -2050,26 +2050,40 @@ pub fn parse_value(
}
}
SyntaxShape::Any => {
let shapes = [
SyntaxShape::Int,
SyntaxShape::Number,
SyntaxShape::Range,
SyntaxShape::Filesize,
SyntaxShape::Duration,
SyntaxShape::Block,
SyntaxShape::Table,
SyntaxShape::List(Box::new(SyntaxShape::Any)),
SyntaxShape::String,
];
for shape in shapes.iter() {
if let (s, None) = parse_value(working_set, span, shape) {
return (s, None);
if bytes.starts_with(b"[") {
let shapes = [SyntaxShape::Table];
for shape in shapes.iter() {
if let (s, None) = parse_value(working_set, span, shape) {
return (s, None);
}
}
parse_value(
working_set,
span,
&SyntaxShape::List(Box::new(SyntaxShape::Any)),
)
} else {
let shapes = [
SyntaxShape::Int,
SyntaxShape::Number,
SyntaxShape::Range,
SyntaxShape::Filesize,
SyntaxShape::Duration,
SyntaxShape::Block,
SyntaxShape::Table,
SyntaxShape::List(Box::new(SyntaxShape::Any)),
SyntaxShape::String,
];
for shape in shapes.iter() {
if let (s, None) = parse_value(working_set, span, shape) {
return (s, None);
}
}
(
garbage(span),
Some(ParseError::Expected("any shape".into(), span)),
)
}
(
garbage(span),
Some(ParseError::Expected("any shape".into(), span)),
)
}
_ => (garbage(span), Some(ParseError::IncompleteParser(span))),
}