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Fix bug and add expr , pat , ty matcher

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This commit is contained in:
Edwin Cheng 2019-04-13 18:38:31 +08:00
parent f66300ccd1
commit 6646d49f23
10 changed files with 307 additions and 33 deletions
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12
crates/ra_mbe/src/subtree_parser.rs
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@ -30,6 +30,18 @@ impl<'a> Parser<'a> {
self.parse(ra_parser::parse_path)
}
pub fn parse_expr(self) -> Option<tt::TokenTree> {
self.parse(ra_parser::parse_expr)
}
pub fn parse_ty(self) -> Option<tt::TokenTree> {
self.parse(ra_parser::parse_ty)
}
pub fn parse_pat(self) -> Option<tt::TokenTree> {
self.parse(ra_parser::parse_pat)
}
fn parse<F>(self, f: F) -> Option<tt::TokenTree>
where
F: FnOnce(&dyn TokenSource, &mut dyn TreeSink),