minor: reduce duplication

This commit is contained in:
Aleksey Kladov 2021-09-19 11:19:31 +03:00
parent 7729473dd2
commit 25adc5e9f0

View file

@ -26,15 +26,16 @@ pub(super) fn opt_generic_arg_list(p: &mut Parser, colon_colon_required: bool) {
// test type_arg
// type A = B<'static, i32, 1, { 2 }, Item=u64, true, false>;
fn generic_arg(p: &mut Parser) {
let m = p.start();
match p.current() {
LIFETIME_IDENT => {
let m = p.start();
lifetime(p);
m.complete(p, LIFETIME_ARG);
}
// test associated_type_bounds
// fn print_all<T: Iterator<Item, Item::Item, Item::<true>, Item: Display, Item<'a> = Item>>(printables: T) {}
IDENT if [T![<], T![=], T![:]].contains(&p.nth(1)) => {
let m = p.start();
let path_ty = p.start();
let path = p.start();
let path_seg = p.start();
@ -78,28 +79,12 @@ fn generic_arg(p: &mut Parser) {
}
}
}
T!['{'] => {
expressions::block_expr(p);
m.complete(p, CONST_ARG);
}
k if k.is_literal() => {
expressions::literal(p);
m.complete(p, CONST_ARG);
}
T![true] | T![false] => {
expressions::literal(p);
m.complete(p, CONST_ARG);
}
// test const_generic_negated_literal
// fn f() { S::<-1> }
T![-] => {
let lm = p.start();
p.bump(T![-]);
expressions::literal(p);
lm.complete(p, PREFIX_EXPR);
m.complete(p, CONST_ARG);
}
T!['{'] | T![true] | T![false] | T![-] => const_arg(p),
k if k.is_literal() => const_arg(p),
_ => {
let m = p.start();
types::type_(p);
m.complete(p, TYPE_ARG);
}
@ -108,7 +93,6 @@ fn generic_arg(p: &mut Parser) {
pub(super) fn const_arg(p: &mut Parser) {
let m = p.start();
// FIXME: duplicates the code above
match p.current() {
T!['{'] => {
expressions::block_expr(p);