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Support exclusive_range_pattern

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Fix #9779
This commit is contained in:
Jade 2021-08-03 21:31:57 -07:00
parent e3a67ccec6
commit b90ed92a5c
3 changed files with 42 additions and 21 deletions
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10
crates/parser/src/grammar/patterns.rs
View file

@ -65,14 +65,18 @@ fn pattern_single_r(p: &mut Parser, recovery_set: TokenSet) {
// match 92 {
// 0 ... 100 => (),
// 101 ..= 200 => (),
// 200 .. 301=> (),
// 200 .. 301 => (),
// 302 .. => (),
// }
// }
for &range_op in [T![...], T![..=], T![..]].iter() {
if p.at(range_op) {
let m = lhs.precede(p);
p.bump(range_op);
atom_pat(p, recovery_set);
if !p.at(T![=>]) {
// not a range pat like `302 .. => ()`
atom_pat(p, recovery_set);
}
m.complete(p, RANGE_PAT);
return;
}
@ -84,7 +88,7 @@ const PAT_RECOVERY_SET: TokenSet =
TokenSet::new(&[T![let], T![if], T![while], T![loop], T![match], T![')'], T![,], T![=]]);
fn atom_pat(p: &mut Parser, recovery_set: TokenSet) -> Option<CompletedMarker> {
let m = match p.nth(0) {
let m = match p.current() {
T![box] => box_pat(p),
T![ref] | T![mut] => ident_pat(p, true),
T![const] => const_block_pat(p),

50
crates/syntax/test_data/parser/inline/ok/0058_range_pat.rast
View file

@ -1,5 +1,5 @@
SOURCE_FILE@0..112
FN@0..111
SOURCE_FILE@0..135
FN@0..134
FN_KW@0..2 "fn"
WHITESPACE@2..3 " "
NAME@3..7
@ -8,16 +8,16 @@ SOURCE_FILE@0..112
L_PAREN@7..8 "("
R_PAREN@8..9 ")"
WHITESPACE@9..10 " "
BLOCK_EXPR@10..111
BLOCK_EXPR@10..134
L_CURLY@10..11 "{"
WHITESPACE@11..16 "\n "
MATCH_EXPR@16..109
MATCH_EXPR@16..132
MATCH_KW@16..21 "match"
WHITESPACE@21..22 " "
LITERAL@22..24
INT_NUMBER@22..24 "92"
WHITESPACE@24..25 " "
MATCH_ARM_LIST@25..109
MATCH_ARM_LIST@25..132
L_CURLY@25..26 "{"
WHITESPACE@26..35 "\n "
MATCH_ARM@35..51
@ -58,7 +58,7 @@ SOURCE_FILE@0..112
R_PAREN@76..77 ")"
COMMA@77..78 ","
WHITESPACE@78..87 "\n "
MATCH_ARM@87..103
MATCH_ARM@87..104
RANGE_PAT@87..97
LITERAL_PAT@87..90
LITERAL@87..90
@ -69,14 +69,30 @@ SOURCE_FILE@0..112
LITERAL_PAT@94..97
LITERAL@94..97
INT_NUMBER@94..97 "301"
FAT_ARROW@97..99 "=>"
WHITESPACE@99..100 " "
TUPLE_EXPR@100..102
L_PAREN@100..101 "("
R_PAREN@101..102 ")"
COMMA@102..103 ","
WHITESPACE@103..108 "\n "
R_CURLY@108..109 "}"
WHITESPACE@109..110 "\n"
R_CURLY@110..111 "}"
WHITESPACE@111..112 "\n"
WHITESPACE@97..98 " "
FAT_ARROW@98..100 "=>"
WHITESPACE@100..101 " "
TUPLE_EXPR@101..103
L_PAREN@101..102 "("
R_PAREN@102..103 ")"
COMMA@103..104 ","
WHITESPACE@104..113 "\n "
MATCH_ARM@113..126
RANGE_PAT@113..119
LITERAL_PAT@113..116
LITERAL@113..116
INT_NUMBER@113..116 "302"
WHITESPACE@116..117 " "
DOT2@117..119 ".."
WHITESPACE@119..120 " "
FAT_ARROW@120..122 "=>"
WHITESPACE@122..123 " "
TUPLE_EXPR@123..125
L_PAREN@123..124 "("
R_PAREN@124..125 ")"
COMMA@125..126 ","
WHITESPACE@126..131 "\n "
R_CURLY@131..132 "}"
WHITESPACE@132..133 "\n"
R_CURLY@133..134 "}"
WHITESPACE@134..135 "\n"

3
crates/syntax/test_data/parser/inline/ok/0058_range_pat.rs
View file

@ -2,6 +2,7 @@ fn main() {
match 92 {
0 ... 100 => (),
101 ..= 200 => (),
200 .. 301=> (),
200 .. 301 => (),
302 .. => (),
}
}