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-rw-r--r--dhall_core/src/parser.rs52
1 files changed, 21 insertions, 31 deletions
diff --git a/dhall_core/src/parser.rs b/dhall_core/src/parser.rs
index 34b6a13..8b14da0 100644
--- a/dhall_core/src/parser.rs
+++ b/dhall_core/src/parser.rs
@@ -72,15 +72,15 @@ fn debug_pair(pair: Pair<Rule>) -> String {
}
macro_rules! match_pair {
- (@make_child_match, $pair:expr, ($($outer_acc:tt)*), ($($acc:tt)*), ($(,)* $ty:ident ($x:ident) $($rest_of_match:tt)*) => $body:expr, $($rest:tt)*) => {
- match_pair!(@make_child_match, $pair, ($($outer_acc)*), ($($acc)*, ParsedValue::$ty($x)), ($($rest_of_match)*) => $body, $($rest)*)
- };
(@make_child_match, $pair:expr, ($($outer_acc:tt)*), ($($acc:tt)*), ($(,)* $ty:ident ($x:ident..) $($rest_of_match:tt)*) => $body:expr, $($rest:tt)*) => {
match_pair!(@make_child_match, $pair, ($($outer_acc)*), ($($acc)*, x..), ($($rest_of_match)*) => {
let $x = x.map(|x| x.$ty());
$body
}, $($rest)*)
};
+ (@make_child_match, $pair:expr, ($($outer_acc:tt)*), ($($acc:tt)*), ($(,)* $ty:ident ($x:pat) $($rest_of_match:tt)*) => $body:expr, $($rest:tt)*) => {
+ match_pair!(@make_child_match, $pair, ($($outer_acc)*), ($($acc)*, ParsedValue::$ty($x)), ($($rest_of_match)*) => $body, $($rest)*)
+ };
(@make_child_match, $pair:expr, ($($outer_acc:tt)*), (, $($acc:tt)*), ($(,)*) => $body:expr, $($rest:tt)*) => {
match_pair!(@make_matches, $pair, ([$($acc)*] => { $body }, $($outer_acc)*), $($rest)*)
};
@@ -261,8 +261,8 @@ rule!(double_quote_literal<ParsedText>; children!(
));
rule!(double_quote_chunk<ParsedTextContents<'a>>; children!(
- [interpolation(c)] => {
- InterpolatedTextContents::Expr(c)
+ [interpolation(e)] => {
+ InterpolatedTextContents::Expr(e)
},
[double_quote_escaped(s)] => {
InterpolatedTextContents::Text(s)
@@ -396,25 +396,21 @@ rule!(import_type_raw<ImportLocation>; children!(
// [http(url)] => {
// ImportLocation::Remote(url)
// }
- [local_raw(import)] => {
- let (prefix, path) = import;
+ [local_raw((prefix, path))] => {
ImportLocation::Local(prefix, path)
}
));
rule!(import_hashed_raw<(ImportLocation, Option<()>)>; children!(
// TODO: handle hash
- [import_type_raw(import)] => {
- (import, None)
- }
+ [import_type_raw(import)] => (import, None)
));
rule_group!(expression<RcExpr>);
rule_in_group!(import_raw<RcExpr>; expression; children!(
// TODO: handle "as Text"
- [import_hashed_raw(import)] => {
- let (location, hash) = import;
+ [import_hashed_raw((location, hash))] => {
bx(Expr::Embed(Import {
mode: ImportMode::Code,
hash,
@@ -467,16 +463,16 @@ rule!(List<()>; raw_pair!(_) => ());
rule!(Optional<()>; raw_pair!(_) => ());
rule_in_group!(empty_collection<RcExpr>; expression; children!(
- [List(_x), expression(y)] => {
+ [List(_), expression(y)] => {
bx(Expr::EmptyListLit(y))
},
- [Optional(_x), expression(y)] => {
+ [Optional(_), expression(y)] => {
bx(Expr::OptionalLit(Some(y), None))
},
));
rule_in_group!(non_empty_optional<RcExpr>; expression; children!(
- [expression(x), Optional(_y), expression(z)] => {
+ [expression(x), Optional(_), expression(z)] => {
bx(Expr::OptionalLit(Some(z), Some(x)))
}
));
@@ -544,9 +540,7 @@ rule_in_group!(selector_expression_raw<RcExpr>; expression; children!(
// TODO: handle record projection
rule!(selector_raw<Label>; children!(
- [label_raw(l)] => {
- l
- }
+ [label_raw(l)] => l
));
rule_in_group!(literal_expression_raw<RcExpr>; expression; children!(
@@ -632,14 +626,14 @@ rule!(record_literal_entry<(Label, RcExpr)>; children!(
));
rule_in_group!(union_type_or_literal<RcExpr>; expression; children!(
- [empty_union_type(_e)] => {
+ [empty_union_type(_)] => {
bx(Expr::Union(BTreeMap::new()))
},
- [non_empty_union_type_or_literal(x)] => {
- match x {
- (Some((l, e)), entries) => bx(Expr::UnionLit(l, e, entries)),
- (None, entries) => bx(Expr::Union(entries)),
- }
+ [non_empty_union_type_or_literal((Some((l, e)), entries))] => {
+ bx(Expr::UnionLit(l, e, entries))
+ },
+ [non_empty_union_type_or_literal((None, entries))] => {
+ bx(Expr::Union(entries))
},
));
@@ -660,12 +654,10 @@ rule!(non_empty_union_type_or_literal
entries.insert(l, e);
(None, entries)
},
- ));
+));
rule!(union_type_entries<BTreeMap<Label, RcExpr>>; children!(
- [union_type_entry(entries..)] => {
- entries.collect()
- }
+ [union_type_entry(entries..)] => entries.collect()
));
rule!(union_type_entry<(Label, RcExpr)>; children!(
@@ -673,9 +665,7 @@ rule!(union_type_entry<(Label, RcExpr)>; children!(
));
rule_in_group!(non_empty_list_literal_raw<RcExpr>; expression; children!(
- [expression(items..)] => {
- bx(Expr::NEListLit(items.collect()))
- }
+ [expression(items..)] => bx(Expr::NEListLit(items.collect()))
));
rule_in_group!(final_expression<RcExpr>; expression; children!(