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parse impl type

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This commit is contained in:
csmoe
2018-09-25 22:00:43 +08:00
parent cacb32d88a
commit edf1cc3582
3 changed files with 44 additions and 57 deletions
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26
crates/ra_syntax/src/grammar/items/traits.rs
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@@ -54,16 +54,8 @@ pub(super) fn impl_item(p: &mut Parser) {
// test impl_item_neg
// impl !Send for X {}
if p.at(IMPL_KW) {
p.error("expected type");
} else {
p.eat(EXCL);
if p.at(IMPL_KW) {
p.error("expected type");
} else {
types::type_(p);
}
}
p.eat(EXCL);
impl_type(p);
if p.eat(FOR_KW) {
types::type_(p);
}
@@ -123,3 +115,17 @@ fn choose_type_params_over_qpath(p: &Parser) -> bool {
(p.nth(1) == LIFETIME || p.nth(1) == IDENT)
&& (p.nth(2) == R_ANGLE || p.nth(2) == COMMA || p.nth(2) == COLON || p.nth(2) == EQ)
}
// impl Type {}
// ^^^^
// impl Trait for T {}
// ^^^^^
pub(crate) fn impl_type(p: &mut Parser) {
if p.at(IMPL_KW) {
p.error("expected trait or type");
return;
}
types::type_(p);
}