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add block matcher

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This commit is contained in:
Edwin Cheng 2019-04-19 19:33:29 +08:00
parent 8092b6487f
commit 762819864f
6 changed files with 64 additions and 0 deletions
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19
crates/ra_mbe/src/lib.rs
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@ -743,4 +743,23 @@ MACRO_ITEMS@[0; 40)
);
assert_expansion(&rules, "foo! { { 1; } }", "fn foo () {1 ;}");
}
#[test]
fn test_meta() {
let rules = create_rules(
r#"
macro_rules! foo {
($ i:meta) => (
#[$ i]
fn bar() {}
)
}
"#,
);
assert_expansion(
&rules,
r#"foo! { cfg(target_os = "windows") }"#,
r#"# [cfg (target_os = "windows")] fn bar () {}"#,
);
}
}