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support 2018 paths

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This commit is contained in:
Aleksey Kladov 2018-09-29 14:53:23 +03:00
parent 5e1d109cbb
commit baaf027da0
3 changed files with 21 additions and 3 deletions
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8
crates/ra_syntax/src/grammar/paths.rs
View file

@ -1,11 +1,11 @@
use super::*;
pub(super) const PATH_FIRST: TokenSet =
token_set![IDENT, SELF_KW, SUPER_KW, COLONCOLON, L_ANGLE];
token_set![IDENT, SELF_KW, SUPER_KW, CRATE_KW, COLONCOLON, L_ANGLE];
pub(super) fn is_path_start(p: &Parser) -> bool {
match p.current() {
IDENT | SELF_KW | SUPER_KW | COLONCOLON => true,
IDENT | SELF_KW | SUPER_KW | CRATE_KW | COLONCOLON => true,
_ => false,
}
}
@ -74,7 +74,9 @@ fn path_segment(p: &mut Parser, mode: Mode, first: bool) {
name_ref(p);
opt_path_type_args(p, mode);
}
SELF_KW | SUPER_KW => p.bump(),
// test crate_path
// use crate::foo;
SELF_KW | SUPER_KW | CRATE_KW => p.bump(),
_ => {
p.err_and_bump("expected identifier");
}

1
crates/ra_syntax/tests/data/parser/inline/0112_crate_path.rs Normal file
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@ -0,0 +1 @@
use crate::foo;

15
crates/ra_syntax/tests/data/parser/inline/0112_crate_path.txt Normal file
View file

@ -0,0 +1,15 @@
ROOT@[0; 16)
USE_ITEM@[0; 15)
USE_KW@[0; 3)
WHITESPACE@[3; 4)
USE_TREE@[4; 14)
PATH@[4; 14)
PATH@[4; 9)
PATH_SEGMENT@[4; 9)
CRATE_KW@[4; 9)
COLONCOLON@[9; 11)
PATH_SEGMENT@[11; 14)
NAME_REF@[11; 14)
IDENT@[11; 14) "foo"
SEMI@[14; 15)
WHITESPACE@[15; 16)