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Add item matcher in mbe

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This commit is contained in:
Edwin Cheng 2019-04-18 10:21:36 +08:00
parent 112fd0ec7d
commit e944fd059d
6 changed files with 70 additions and 0 deletions
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44
crates/ra_mbe/src/lib.rs
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@ -597,4 +597,48 @@ SOURCE_FILE@[0; 40)
assert_expansion(&rules, "foo! { 2 }", "fn bar () {2 ;}");
assert_expansion(&rules, "foo! { let a = 0 }", "fn bar () {let a = 0 ;}");
}
#[test]
fn test_single_item() {
let rules = create_rules(
r#"
macro_rules! foo {
($ i:item) => (
$ i
)
}
"#,
);
assert_expansion(&rules, "foo! {mod c {}}", "mod c {}");
}
#[test]
fn test_all_items() {
let rules = create_rules(
r#"
macro_rules! foo {
($ ($ i:item)*) => ($ (
$ i
)*)
}
"#,
);
assert_expansion(&rules, r#"
foo! {
extern crate a;
mod b;
mod c {}
use d;
const E: i32 = 0;
static F: i32 = 0;
impl G {}
struct H;
enum I { Foo }
trait J {}
fn h() {}
extern {}
type T = u8;
}
"#, r#"extern crate a ; mod b ; mod c {} use d ; const E : i32 = 0 ; static F : i32 = 0 ; impl G {} struct H ; enum I {Foo} trait J {} fn h () {} extern {} type T = u8 ;"#);
}
}