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add tt matcher

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This commit is contained in:
Edwin Cheng 2019-04-19 19:41:59 +08:00
parent 762819864f
commit 59b6cc780b
2 changed files with 28 additions and 0 deletions
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24
crates/ra_mbe/src/lib.rs
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@ -762,4 +762,28 @@ MACRO_ITEMS@[0; 40)
r#"# [cfg (target_os = "windows")] fn bar () {}"#,
);
}
#[test]
fn test_tt_block() {
let rules = create_rules(
r#"
macro_rules! foo {
($ i:tt) => { fn foo() $ i }
}
"#,
);
assert_expansion(&rules, r#"foo! { { 1; } }"#, r#"fn foo () {1 ;}"#);
}
#[test]
fn test_tt_group() {
let rules = create_rules(
r#"
macro_rules! foo {
($($ i:tt)*) => { $($ i)* }
}
"#,
);
assert_expansion(&rules, r#"foo! { fn foo() {} }"#, r#"fn foo () {}"#);
}
}