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Fix fail to parse :: for meta in mbe

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This commit is contained in:
Edwin Cheng 2021-03-06 04:57:34 +08:00
parent 3d662e320b
commit 20eda09712
2 changed files with 4 additions and 2 deletions
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3
crates/mbe/src/tests.rs
View File

@ -954,7 +954,8 @@ fn test_meta() {
.assert_expand_items( .assert_expand_items(
r#"foo! { cfg(target_os = "windows") }"#, r#"foo! { cfg(target_os = "windows") }"#,
r#"# [cfg (target_os = "windows")] fn bar () {}"#, r#"# [cfg (target_os = "windows")] fn bar () {}"#,
); )
.assert_expand_items(r#"foo! { hello::world }"#, r#"# [hello :: world] fn bar () {}"#);
} }
#[test] #[test]

3
crates/parser/src/grammar.rs
View File

@ -95,7 +95,7 @@ pub(crate) mod fragments {
// https://doc.rust-lang.org/reference/paths.html#simple-paths // https://doc.rust-lang.org/reference/paths.html#simple-paths
// The start of an meta must be a simple path // The start of an meta must be a simple path
match p.current() { match p.current() {
IDENT | T![::] | T![super] | T![self] | T![crate] => p.bump_any(), IDENT | T![super] | T![self] | T![crate] => p.bump_any(),
T![=] => { T![=] => {
p.bump_any(); p.bump_any();
match p.current() { match p.current() {
@ -105,6 +105,7 @@ pub(crate) mod fragments {
} }
break; break;
} }
_ if p.at(T![::]) => p.bump(T![::]),
_ => break, _ => break,
} }
} }