diff options
Diffstat (limited to 'dhall')
| -rw-r--r-- | dhall/build.rs | 20 | ||||
| -rw-r--r-- | dhall/src/syntax/ast/span.rs | 3 | ||||
| -rw-r--r-- | dhall/src/syntax/text/parser.rs | 13 | ||||
| -rw-r--r-- | dhall/tests/parser/failure/spacing/MergeNoSpace2.txt | 2 | ||||
| -rw-r--r-- | dhall/tests/parser/failure/spacing/RecordTypeNoSpace.txt | 2 |
5 files changed, 16 insertions, 24 deletions
diff --git a/dhall/build.rs b/dhall/build.rs index 88a2145..7c62083 100644 --- a/dhall/build.rs +++ b/dhall/build.rs @@ -375,26 +375,6 @@ fn convert_abnf_to_pest() -> std::io::Result<()> { rules.remove("url_path"); writeln!(&mut file, "url_path = _{{ path }}")?; - // TODO: workaround to simplify record parsing - rules.remove("non_empty_record_type_or_literal"); - rules.remove("non_empty_record_literal"); - rules.remove("non_empty_record_type"); - writeln!( - &mut file, - "non_empty_record_type_or_literal = {{ non_empty_record_literal | \ - non_empty_record_type }}" - )?; - writeln!( - &mut file, - "non_empty_record_literal = {{ record_literal_entry ~ (whsp ~ ^\",\" \ - ~ whsp ~ record_literal_entry)*}}" - )?; - writeln!( - &mut file, - "non_empty_record_type = {{ record_type_entry ~ (whsp ~ ^\",\" ~ whsp \ - ~ record_type_entry)* }}" - )?; - // Work around some greediness issue in the grammar. rules.remove("missing"); writeln!( diff --git a/dhall/src/syntax/ast/span.rs b/dhall/src/syntax/ast/span.rs index 6d017f6..7c004c5 100644 --- a/dhall/src/syntax/ast/span.rs +++ b/dhall/src/syntax/ast/span.rs @@ -18,8 +18,9 @@ pub(crate) struct ParsedSpan { pub(crate) enum Span { /// A location in the source text Parsed(ParsedSpan), - /// Desugaring of duplicate fields + /// Desugarings DuplicateRecordFieldsSugar, + DottedFieldSugar, /// For expressions obtained from decoding binary Decoded, /// For expressions constructed during normalization/typecheck diff --git a/dhall/src/syntax/text/parser.rs b/dhall/src/syntax/text/parser.rs index f74794b..ba64a75 100644 --- a/dhall/src/syntax/text/parser.rs +++ b/dhall/src/syntax/text/parser.rs @@ -915,7 +915,18 @@ impl DhallParser { fn record_literal_entry(input: ParseInput) -> ParseResult<(Label, Expr)> { Ok(match_nodes!(input.into_children(); - [label(name), expression(expr)] => (name, expr) + [label(name), expression(expr)] => (name, expr), + [label(first_name), label(names).., expression(expr)] => { + // Desugar dotted field syntax into nested records + let expr = names.rev().fold(expr, |e, l| { + let map = Some((l, e)).into_iter().collect(); + Expr::new( + RecordLit(map), + Span::DottedFieldSugar, + ) + }); + (first_name, expr) + }, )) } diff --git a/dhall/tests/parser/failure/spacing/MergeNoSpace2.txt b/dhall/tests/parser/failure/spacing/MergeNoSpace2.txt index 77314e0..96d937b 100644 --- a/dhall/tests/parser/failure/spacing/MergeNoSpace2.txt +++ b/dhall/tests/parser/failure/spacing/MergeNoSpace2.txt @@ -3,4 +3,4 @@ 1 | merge x(y)␊ | ^--- | - = expected missing, non_empty_list_literal, double_quote_literal, single_quote_literal, if_, merge, NaN, Some_, toMap, assert, forall, numeric_double_literal, minus_infinity_literal, plus_infinity_literal, natural_literal, integer_literal, or import_hashed + = expected missing, double_quote_literal, single_quote_literal, if_, merge, non_empty_list_literal, NaN, Some_, toMap, assert, forall, numeric_double_literal, minus_infinity_literal, plus_infinity_literal, natural_literal, integer_literal, or import_hashed diff --git a/dhall/tests/parser/failure/spacing/RecordTypeNoSpace.txt b/dhall/tests/parser/failure/spacing/RecordTypeNoSpace.txt index f6427a4..9c1eaef 100644 --- a/dhall/tests/parser/failure/spacing/RecordTypeNoSpace.txt +++ b/dhall/tests/parser/failure/spacing/RecordTypeNoSpace.txt @@ -3,4 +3,4 @@ 1 | { x :T }␊ | ^--- | - = expected non_empty_record_type_or_literal or empty_record_literal + = expected empty_record_literal or non_empty_record_type_or_literal |