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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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13
crates/ra_mbe/src/mbe_expander.rs
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@@ -144,6 +144,19 @@ fn match_lhs(pattern: &crate::Subtree, input: &mut TtCursor) -> Result<Bindings,
input.eat_path().ok_or(ExpandError::UnexpectedToken)?.clone();
res.inner.insert(text.clone(), Binding::Simple(path.into()));
}
"expr" => {
let expr =
input.eat_expr().ok_or(ExpandError::UnexpectedToken)?.clone();
res.inner.insert(text.clone(), Binding::Simple(expr.into()));
}
"ty" => {
let ty = input.eat_ty().ok_or(ExpandError::UnexpectedToken)?.clone();
res.inner.insert(text.clone(), Binding::Simple(ty.into()));
}
"pat" => {
let pat = input.eat_pat().ok_or(ExpandError::UnexpectedToken)?.clone();
res.inner.insert(text.clone(), Binding::Simple(pat.into()));
}
_ => return Err(ExpandError::UnexpectedToken),
}
}