Unnamed repository; edit this file 'description' to name the repository.
5 files changed, 181 insertions, 7 deletions
diff --git a/crates/parser/src/grammar/patterns.rs b/crates/parser/src/grammar/patterns.rs index 4cbf103061..7e21a808da 100644 --- a/crates/parser/src/grammar/patterns.rs +++ b/crates/parser/src/grammar/patterns.rs @@ -75,6 +75,16 @@ fn pattern_single_r(p: &mut Parser<'_>, recovery_set: TokenSet) { // Some(1..) => () // } // + // match () { + // S { a: 0 } => (), + // S { a: 1.. } => (), + // } + // + // match () { + // [0] => (), + // [1..] => (), + // } + // // match (10 as u8, 5 as u8) { // (0, _) => (), // (1.., _) => () @@ -88,11 +98,27 @@ fn pattern_single_r(p: &mut Parser<'_>, recovery_set: TokenSet) { let m = lhs.precede(p); p.bump(range_op); - // `0 .. =>` or `let 0 .. =` or `Some(0 .. )` - // ^ ^ ^ - if p.at(T![=]) | p.at(T![')']) | p.at(T![,]) { + // testing if we're at one of the following positions: + // `0 .. =>` + // ^ + // `let 0 .. =` + // ^ + // `let 0..: _ =` + // ^ + // (1.., _) + // ^ + // `Some(0 .. )` + // ^ + // `S { t: 0.. }` + // ^ + // `[0..]` + // ^ + if matches!(p.current(), T![=] | T![,] | T![:] | T![')'] | T!['}'] | T![']']) { // test half_open_range_pat - // fn f() { let 0 .. = 1u32; } + // fn f() { + // let 0 .. = 1u32; + // let 0..: _ = 1u32; + // } } else { atom_pat(p, recovery_set); } diff --git a/crates/parser/test_data/parser/inline/ok/0058_range_pat.rast b/crates/parser/test_data/parser/inline/ok/0058_range_pat.rast index 44c967e8dc..cfef5d3f95 100644 --- a/crates/parser/test_data/parser/inline/ok/0058_range_pat.rast +++ b/crates/parser/test_data/parser/inline/ok/0058_range_pat.rast @@ -172,6 +172,122 @@ SOURCE_FILE WHITESPACE "\n " R_CURLY "}" WHITESPACE "\n\n " + EXPR_STMT + MATCH_EXPR + MATCH_KW "match" + WHITESPACE " " + TUPLE_EXPR + L_PAREN "(" + R_PAREN ")" + WHITESPACE " " + MATCH_ARM_LIST + L_CURLY "{" + WHITESPACE "\n " + MATCH_ARM + RECORD_PAT + PATH + PATH_SEGMENT + NAME_REF + IDENT "S" + WHITESPACE " " + RECORD_PAT_FIELD_LIST + L_CURLY "{" + WHITESPACE " " + RECORD_PAT_FIELD + NAME_REF + IDENT "a" + COLON ":" + WHITESPACE " " + LITERAL_PAT + LITERAL + INT_NUMBER "0" + WHITESPACE " " + R_CURLY "}" + WHITESPACE " " + FAT_ARROW "=>" + WHITESPACE " " + TUPLE_EXPR + L_PAREN "(" + R_PAREN ")" + COMMA "," + WHITESPACE "\n " + MATCH_ARM + RECORD_PAT + PATH + PATH_SEGMENT + NAME_REF + IDENT "S" + WHITESPACE " " + RECORD_PAT_FIELD_LIST + L_CURLY "{" + WHITESPACE " " + RECORD_PAT_FIELD + NAME_REF + IDENT "a" + COLON ":" + WHITESPACE " " + RANGE_PAT + LITERAL_PAT + LITERAL + INT_NUMBER "1" + DOT2 ".." + WHITESPACE " " + R_CURLY "}" + WHITESPACE " " + FAT_ARROW "=>" + WHITESPACE " " + TUPLE_EXPR + L_PAREN "(" + R_PAREN ")" + COMMA "," + WHITESPACE "\n " + R_CURLY "}" + WHITESPACE "\n\n " + EXPR_STMT + MATCH_EXPR + MATCH_KW "match" + WHITESPACE " " + TUPLE_EXPR + L_PAREN "(" + R_PAREN ")" + WHITESPACE " " + MATCH_ARM_LIST + L_CURLY "{" + WHITESPACE "\n " + MATCH_ARM + SLICE_PAT + L_BRACK "[" + LITERAL_PAT + LITERAL + INT_NUMBER "0" + R_BRACK "]" + WHITESPACE " " + FAT_ARROW "=>" + WHITESPACE " " + TUPLE_EXPR + L_PAREN "(" + R_PAREN ")" + COMMA "," + WHITESPACE "\n " + MATCH_ARM + SLICE_PAT + L_BRACK "[" + RANGE_PAT + LITERAL_PAT + LITERAL + INT_NUMBER "1" + DOT2 ".." + R_BRACK "]" + WHITESPACE " " + FAT_ARROW "=>" + WHITESPACE " " + TUPLE_EXPR + L_PAREN "(" + R_PAREN ")" + COMMA "," + WHITESPACE "\n " + R_CURLY "}" + WHITESPACE "\n\n " MATCH_EXPR MATCH_KW "match" WHITESPACE " " diff --git a/crates/parser/test_data/parser/inline/ok/0058_range_pat.rs b/crates/parser/test_data/parser/inline/ok/0058_range_pat.rs index 6c586a8956..2411d51096 100644 --- a/crates/parser/test_data/parser/inline/ok/0058_range_pat.rs +++ b/crates/parser/test_data/parser/inline/ok/0058_range_pat.rs @@ -11,6 +11,16 @@ fn main() { Some(1..) => () } + match () { + S { a: 0 } => (), + S { a: 1.. } => (), + } + + match () { + [0] => (), + [1..] => (), + } + match (10 as u8, 5 as u8) { (0, _) => (), (1.., _) => () diff --git a/crates/parser/test_data/parser/inline/ok/0166_half_open_range_pat.rast b/crates/parser/test_data/parser/inline/ok/0166_half_open_range_pat.rast index 3d3587a706..4b401b60df 100644 --- a/crates/parser/test_data/parser/inline/ok/0166_half_open_range_pat.rast +++ b/crates/parser/test_data/parser/inline/ok/0166_half_open_range_pat.rast @@ -11,7 +11,7 @@ SOURCE_FILE BLOCK_EXPR STMT_LIST L_CURLY "{" - WHITESPACE " " + WHITESPACE "\n " LET_STMT LET_KW "let" WHITESPACE " " @@ -27,6 +27,25 @@ SOURCE_FILE LITERAL INT_NUMBER "1u32" SEMICOLON ";" - WHITESPACE " " + WHITESPACE "\n " + LET_STMT + LET_KW "let" + WHITESPACE " " + RANGE_PAT + LITERAL_PAT + LITERAL + INT_NUMBER "0" + DOT2 ".." + COLON ":" + WHITESPACE " " + INFER_TYPE + UNDERSCORE "_" + WHITESPACE " " + EQ "=" + WHITESPACE " " + LITERAL + INT_NUMBER "1u32" + SEMICOLON ";" + WHITESPACE "\n" R_CURLY "}" WHITESPACE "\n" diff --git a/crates/parser/test_data/parser/inline/ok/0166_half_open_range_pat.rs b/crates/parser/test_data/parser/inline/ok/0166_half_open_range_pat.rs index 1360eda056..c9386a221a 100644 --- a/crates/parser/test_data/parser/inline/ok/0166_half_open_range_pat.rs +++ b/crates/parser/test_data/parser/inline/ok/0166_half_open_range_pat.rs @@ -1 +1,4 @@ -fn f() { let 0 .. = 1u32; } +fn f() { + let 0 .. = 1u32; + let 0..: _ = 1u32; +} |